it Protein modification characteristics of the malaria parasite Plasmodium falciparum and the infected erythrocytes [Research] By www.mcponline.org Published On :: 2020-11-04T10:35:17-08:00 Malaria elimination is still pending on the development of novel tools that rely on a deep understanding of parasite biology. Proteins of all living cells undergo a myriad number of posttranslational modifications (PTMs) that are critical to multifarious life processes. An extensive proteome-wide dissection revealed a fine PTM map of most proteins in both Plasmodium falciparum, the causative agent of severe malaria, and the infected red blood cells. More than two-thirds of proteins of the parasite and its host cell underwent extensive and dynamic modification throughout the erythrocytic developmental stage. PTMs critically modulate the virulence factors involved in the host-parasite interaction and pathogenesis. Furthermore, P. falciparum stabilized the supporting proteins of erythrocyte origin by selective de-modification. Collectively, our multiple omic analyses, apart from having furthered a deep understanding of the systems biology of P. falciparum and malaria pathogenesis, provide a valuable resource for mining new antimalarial targets. Full Article
it Peptidomics-driven strategy reveals peptides and predicted proteases associated with oral cancer prognosis [Research] By www.mcponline.org Published On :: 2020-11-11T05:35:17-08:00 Protease activity has been associated with pathological processes that can lead to cancer development and progression. However, understanding the pathological unbalance in proteolysis is challenging since changes can occur simultaneously at protease, their inhibitor and substrate levels. Here, we present a pipeline that combines peptidomics, proteomics and peptidase predictions for studying proteolytic events in the saliva of seventy-nine patients and their association with oral squamous cell carcinoma (OSCC) prognosis. Our findings revealed differences in the saliva peptidome of patients with (pN+) or without (pN0) lymph node metastasis and delivered a panel of ten endogenous peptides correlated with poor prognostic factors plus five molecules able to classify pN0 and pN+ patients (ROC-AUC>0.85). In addition, endo- and exopeptidases putatively implicated in the processing of differential peptides were investigated using cancer tissue gene expression data from publicly repositories reinforcing their association with poorer survival rates and prognosis in oral cancer. The dynamics of the OSCC-related proteolysis was further explored via the proteomic profiling of saliva. This revealed that peptidase/endopeptidase inhibitors exhibited reduced levels in the saliva of pN+ patients, as confirmed by SRM-MS, whilst minor changes were detected in the level of saliva proteases. Taken together, our results indicated that proteolytic activity is accentuated in the saliva of OSCC patients with lymph node metastasis and, at least in part, this is modulated by reduced levels of salivary peptidase inhibitors. Therefore, this integrated pipeline provided better comprehension and discovery of molecular features with implications in the oral cancer metastasis prognosis. Full Article
it Proteomic identification of Coxiella burnetii effector proteins targeted to the host cell mitochondria during infection [Research] By www.mcponline.org Published On :: 2020-11-11T11:35:16-08:00 Modulation of the host cell is integral to the survival and replication of microbial pathogens. Several intracellular bacterial pathogens deliver bacterial proteins, termed ‘effector proteins’ into the host cell during infection by sophisticated protein translocation systems, which manipulate cellular processes and functions. The functional contribution of individual effectors is poorly characterised, particularly in intracellular bacterial pathogens with large effector protein repertoires. Technical caveats have limited the capacity to study these proteins during a native infection, with many effector proteins having only been demonstrated to be translocated during over-expression of tagged versions. Here we developed a novel strategy to examine effector proteins in the context of infection. We coupled a broad, unbiased proteomics-based screen with organelle purification to study the host-pathogen interactions occurring between the host cell mitochondrion and the Gram-negative, Q fever pathogen Coxiella burnetii. We identify 4 novel mitochondrially-targeted C. burnetii effector proteins, renamed Mitochondrial Coxiella effector protein (Mce) B to E. Examination of the subcellular localisation of ectopically expressed proteins confirmed their mitochondrial localisation, demonstrating the robustness of our approach. Subsequent biochemical analysis and affinity enrichment proteomics of one of these effector proteins, MceC, revealed the protein localises to the inner membrane and can interact with components of the mitochondrial quality control machinery. Our study adapts high-sensitivity proteomics to study intracellular host-pathogen interactions, providing a robust strategy to examine the sub-cellular localisation of effector proteins during native infection. This approach could be applied to a range of pathogens and host cell compartments to provide a rich map of effector dynamics throughout infection. Full Article
it Quantitative proteomics reveal neuron projection development genes ARF4, KIF5B and RAB8A associated with Hirschsprung disease [Research] By www.mcponline.org Published On :: 2020-11-17T10:35:13-08:00 Hirschsprung disease (HSCR) is a heterogeneous group of neurocristopathy characterized by the absence of the enteric ganglia along a variable length of the intestine. Genetic defects play a major role in the pathogenesis of HSCR while family studies of pathogenic variants in all the known genes (loci) only demonstrate incomplete penetrance and variable expressivity for unknown reasons. Here, we applied large-scale, quantitative proteomics of human colon tissues from 21 patients using iTRAQ method followed by bioinformatics analysis. Selected findings were confirmed by parallel reaction monitoring (PRM) verification. At last the interesting differentially expressed proteins were confirmed by western blot. A total of 5341 proteins in human colon tissues were identified. Among them, 664 proteins with >1.2-fold difference were identified in 6 groups: groups A1 and A2 pooled protein from the ganglionic and aganglionic colon of male, long-segment HSCR patients (L-HSCR, n=7); groups B1 and B2 pooled protein from the ganglionic and aganglionic colon of male, short-segment HSCR patients (S-HSCR, n=7); and groups C1 and C2 pooled protein from the ganglionic and aganglionic colon of female, S-HSCR patients (n=7). Based on these analyses, 49 proteins from 5 pathways were selected for PRM verification, including ribosome, endocytosis, spliceosome, oxidative phosphorylation and cell adhesion. The downregulation of three neuron projection development genes ARF4, KIF5B and RAB8A in the aganglionic part of the colon were verified in 15 paired colon samples using WB. The findings of this study will shed new light on the pathogenesis of HSCR and facilitate the development of therapeutic targets. Full Article
it Thyroglobulin interactome profiling defines altered proteostasis topology associated with thyroid dyshormonogenesis [Research] By www.mcponline.org Published On :: 2020-11-18T11:35:14-08:00 Thyroglobulin (Tg) is a secreted iodoglycoprotein serving as the precursor for T3 and T4 hormones. Many characterized Tg gene mutations produce secretion-defective variants resulting in congenital hypothyroidism (CH). Tg processing and secretion is controlled by extensive interactions with chaperone, trafficking, and degradation factors comprising the secretory proteostasis network. While dependencies on individual proteostasis network components are known, the integration of proteostasis pathways mediating Tg protein quality control and the molecular basis of mutant Tg misprocessing remain poorly understood. We employ a multiplexed quantitative affinity purification–mass spectrometry approach to define the Tg proteostasis interactome and changes between WT and several CH-variants. Mutant Tg processing is associated with common imbalances in proteostasis engagement including increased chaperoning, oxidative folding, and engagement by targeting factors for ER-associated degradation (ERAD). Furthermore, we reveal mutation-specific changes in engagement with N-glycosylation components, suggesting distinct requirements for one Tg variant on dual engagement of both oligosaccharyltransferase complex isoforms for degradation. Modulating dysregulated proteostasis components and pathways may serve as a therapeutic strategy to restore Tg secretion and thyroid hormone biosynthesis. Full Article
it The Mechanism of NEDD8 Activation of CUL5 Ubiquitin E3 Ligases [Research] By www.mcponline.org Published On :: 2020-12-02T10:35:15-08:00 Cullin RING E3 Ligases (CRLs) ubiquitylate hundreds of important cellular substrates. Here we have assembled and purified the Ankyrin repeat and SOCS Box protein 9 CUL5 RBX2 Ligase (ASB9-CRL) in vitro and show how it ubiquitylates one of its substrates, CKB. CRLs occasionally collaborate with RING between RING E3 ligases (RBRLs) and indeed, mass spectrometry analysis showed that CKB is specifically ubiquitylated by the ASB9-CRL-ARIH2-UBE2L3 complex. Addition of other E2s such as UBE2R1 or UBE2D2 contribute to polyubiquitylation but do not alter the sites of CKB ubiquitylation. Hydrogen-deuterium exchange mass spectrometry (HDX-MS) analysis revealed that CUL5 neddylation allosterically exposes its ARIH2 binding site, promoting high affinity binding, and it also sequesters the NEDD8 E2 (UBE2F) binding site on RBX2. Once bound, ARIH2 helices near the Ariadne domain active site are exposed, presumably relieving its autoinhibition. These results allow us to propose a model of how neddylation activates ASB-CRLs to ubiquitylate their substrates. Full Article
it A potential role for the Gsdf-eEF1{alpha} complex in inhibiting germ cell proliferation: A protein-interaction analysis in medaka (Oryzias latipes) from a proteomics perspective [Research] By www.mcponline.org Published On :: 2020-12-08T12:35:19-08:00 Gonadal soma-derived factor (gsdf) has been demonstrated to be essential for testicular differentiation in medaka (Oryzias latipes). To understand the protein dynamics of Gsdf in spermatogenesis regulation, we used a His-tag "pull-down" assay coupled with shotgun LC-MS/MS to identify a group of potential interacting partners for Gsdf, which included cytoplasmic dynein light chain 2, eukaryotic polypeptide elongation factor 1 alpha (eEF1α), and actin filaments in mature medaka testis. As for the interaction with TGFβ-dynein being critical for spermatogonial division in Drosophila melanogaster, the physical interactions of Gsdf-dynein and Gsdf-eEF1α were identified through a yeast 2-hybrid (Y2H) screening of an adult testis cDNA library using Gsdf as bait, which were verified by a paired Y2H assay. Co-immunoprecipitation of Gsdf and eEF1α was defined in adult testes as supporting the requirement of a Gsdf and eEF1α interaction in testis development. Proteomics analysis (data are available via ProteomeXchange with identifier PXD022153) and ultrastrutural observations showed that Gsdf deficiency activated eEF1α-mediated protein synthesis and ribosomal biogenesis, which in turn led to the differentiation of undifferentiated germ cells. Thus, our results provide a framework and new insight into the coordination of a Gsdf (TGFβ and eEF1α complex in the basic processes of germ cell proliferation, transcriptional and translational control of sexual RNA which may be fundamentally conserved across phyla during sexual differentiation. Full Article
it Plasma proteomic data can contain personally identifiable, sensitive information and incidental findings [Research] By www.mcponline.org Published On :: 2020-12-17T07:31:07-08:00 The goal of clinical proteomics is to identify, quantify, and characterize proteins in body fluids or tissue to assist diagnosis, prognosis, and treatment of patients. In this way, it is similar to more mature omics technologies, such as genomics, that are increasingly applied in biomedicine. We argue that, similar to those fields, proteomics also faces ethical issues related to the kinds of information that is inherently obtained through sample measurement, although their acquisition was not the primary purpose. Specifically, we demonstrate the potential to identify individuals both by their characteristic, individual-specific protein levels and by variant peptides reporting on coding single nucleotide polymorphisms. Furthermore, it is in the nature of blood plasma proteomics profiling that it broadly reports on the health status of an individual – beyond the disease under investigation. Finally, we show that private and potentially sensitive information, such as ethnicity and pregnancy status, can increasingly be derived from proteomics data. Although this is potentially valuable not only to the individual, but also for biomedical research, it raises ethical questions similar to the incidental findings obtained through other omics technologies. We here introduce the necessity of - and argue for the desirability for - ethical and human rights-related issues to be discussed within the proteomics community. Those thoughts are more fully developed in our accompanying manuscript. Appreciation and discussion of ethical aspects of proteomic research will allow for deeper, better-informed, more diverse, and, most importantly, wiser guidelines for clinical proteomics. Full Article
it Identification of novel serological autoantibodies in Takayasu arteritis patients using HuProt arrays [Research] By www.mcponline.org Published On :: 2020-12-17T13:35:20-08:00 To identify novel autoantibodies of Takayasu arteritis (TAK) using HuProt array-based approach. A two-phase approach was adopted. In Phase I, serum samples collected from 40 TAK patients, 15 autoimmune disease patients, and 20 healthy subjects were screened to identify TAK-specific autoantibodies using human protein (HuProt) arrays. In Phase II, the identified candidate autoantibodies were validated with TAK-focused arrays using an additional cohort comprised of 109 TAK patients, 110 autoimmune disease patients, and 96 healthy subjects. Subsequently, the TAK-specific autoantibodies validated in Phase II were further confirmed using Western blot analysis. We identified and validated eight autoantibodies as potential TAK-specific diagnostic biomarkers, including anti-SPATA7, -QDPR, -SLC25A2, -PRH2, -DIXDC1, -IL17RB, -ZFAND4, and -NOLC1 antibodies, with AUC of 0.803, 0.801, 0.780, 0.696, 0.695, 0.678, 0.635 and 0.613, respectively. SPATA7 could distinguish TAK from healthy and disease controls with 73.4% sensitivity at 85.4% specificity, while QDPR showed 71.6% sensitivity at 86.4% specificity. SLC25A22 showed the highest sensitivity of 80.7%, but at lower specificity of 67.0%. In addition, PRH2, IL17RB and NOLC1 showed good specificities of 88.3%, 85.9% and 86.9%, respectively, but at lower sensitivities (<50%). Finally, DIXDC1 and ZFAND4 showed moderate performance as compared with the other autoantibodies. Using a decision tree model, we could reach a specificity of 94.2% with AUC of 0.843, a significantly improved performance as compared to that by each individual biomarker. The performance of three autoantibodies, namely anti-SPATA7, -QDPR and -PRH2, were successfully confirmed with Western blot analysis. Using this two-phase strategy, we identified and validated eight novel autoantibodies as TAK–specific biomarker candidates, three of which could be readily adopted in a clinical setting. Full Article
it Systematic identification of P. falciparum sporozoite membrane protein interactions reveals an essential role for the p24 complex in host infection [Research] By www.mcponline.org Published On :: 2020-12-22T08:35:40-08:00 Sporozoites are a motile form of malaria-causing Plasmodium falciparum parasites that migrate from the site of transmission in the dermis through the bloodstream to invade hepatocytes. Sporozoites interact with many cells within the host, but the molecular identity of these interactions and their role in the pathology of malaria is poorly understood. Parasite proteins that are secreted and embedded within membranes are known to be important for these interactions, but our understanding of how they interact with each other to form functional complexes is largely unknown. Here, we compile a library of recombinant proteins representing the repertoire of cell surface and secreted proteins from the P. falciparum sporozoite and use an assay designed to detect extracellular interactions to systematically identify complexes. We identify three protein complexes including an interaction between two components of the p24 complex that is involved in the trafficking of glycosylphosphatidylinositol (GPI)-anchored proteins through the secretory pathway. Plasmodium parasites lacking either gene are strongly inhibited in the establishment of liver stage infections. These findings reveal an important role for the p24 complex in malaria pathogenesis and show that the library of recombinant proteins represents a valuable resource to investigate P. falciparum sporozoite biology. Full Article
it The role of Data-Independent Acquisition for Glycoproteomics [Review] By www.mcponline.org Published On :: 2020-12-28T12:35:13-08:00 Data independent acquisition (DIA) is now an emerging method in bottom-up proteomics and capable of achieving deep proteome coverage and accurate label-free quantification. However, for post-translational modifications (PTM), such as glycosylation, DIA methodology is still in the early stage of development. The full characterization of glycoproteins requires site specific glycan identification as well as subsequent quantification of glycan structures at each site. The tremendous complexity of glycosylation represents a significant analytical challenge in glycoproteomics. This review focuses on the development and perspectives of DIA methodology for N- and O- glycoproteomics and posits that DIA-based glycoproteomics could be a method of choice to address some of the challenging aspects of glycoproteomics. First, the current challenges in glycoproteomics and the basic principles of DIA is briefly introduced. DIA based glycoproteomics is then summarized and described into four aspects based on the actual samples. Lastly, we discussed the important challenges and future perspectives in the field. We believe that DIA can significantly facilitate glycoproteomic studies and contribute to the development of future advanced tools and approaches in the field of glycoproteomics. Full Article
it Interspecies differences in proteome turnover kinetics are correlated with lifespans and energetic demands [Research] By www.mcponline.org Published On :: 2020-12-28T09:35:20-08:00 Cells continually degrade and replace damaged proteins. However, the high energetic demand of protein turnover generates reactive oxygen species (ROS) that compromise the long-term health of the proteome. Thus, the relationship between aging, protein turnover and energetic demand remains unclear. Here, we used a proteomic approach to measure rates of protein turnover within primary fibroblasts isolated from a number of species with diverse lifespans including the longest-lived mammal, the bowhead whale. We show that organismal lifespan is negatively correlated with turnover rates of highly abundant proteins. In comparison to mice, cells from long-lived naked mole rats have slower rates of protein turnover, lower levels of ATP production and reduced ROS levels. Despite having slower rates of protein turnover, naked mole rat cells tolerate protein misfolding stress more effectively than mouse cells. We suggest that in lieu of rapid constitutive turnover, long-lived species may have evolved more energetically efficient mechanisms for selective detection and clearance of damaged proteins. Full Article
it High-throughput and site-specific N-glycosylation analysis of human alpha-1-acid glycoprotein offers a great potential for new biomarker discovery [Research] By www.mcponline.org Published On :: 2020-12-29T12:35:15-08:00 Alpha-1-acid glycoprotein (AGP) is an acute phase glycoprotein in blood, which is primarily synthetized in the liver and whose biological role is not completely understood. It consists of 45% carbohydrates that are present in the form of five N-linked complex glycans. AGP N-glycosylation was shown to be changed in many different diseases and some changes appear to be disease-specific, thus it has a great diagnostic and prognostic potential. However, AGP glycosylation was mainly analyzed in small cohorts and without detailed site-specific glycan information. Here, we developed a cost-effective method for a high-throughput and site-specific N-glycosylation LC-MS analysis of AGP which can be applied on large cohorts, aid in search for novel disease biomarkers and enable better understanding of AGP’s role and function in health and disease. The method does not require isolation of AGP with antibodies and affinity chromatography, but AGP is enriched by acid precipitation from 5 μl of bloodplasma in a 96 well format. After trypsinization, AGP glycopeptides are purified using a hydrophilic interaction chromatography based solid-phase extraction and analyzed by RP-LC-ESI-MS. We used our method to show for the first time that AGP N-glycan profile is stable in healthy individuals (14 individuals in 3 time points), which is a requirement for evaluation of its diagnostic potential. Furthermore, we tested our method on a population including individuals with registered hyperglycemia in critical illness (59 cases and 49 controls), which represents a significantly increased risk of developing type 2 diabetes. Individuals at higher risk of diabetes presented increased N-glycan branching on AGP’s second glycosylation site and lower sialylation of N-glycans on AGP’s third and AGP1’s fourth glycosylation site. Although this should be confirmed on a larger prospective cohort, it indicates that site-specific AGP N-glycan profile could help distinguish individuals who are at risk of type 2 diabetes. Full Article
it Ethical principles, opportunities and constraints in clinical proteomics [Research] By www.mcponline.org Published On :: 2021-01-04T06:35:18-08:00 Recent advances in MS-based proteomics have vastly increased the quality and scope of biological information that can be derived from human samples. These advances have rendered current workflows increasingly applicable in biomedical and clinical contexts. As proteomics is poised to take an important role in the clinic, associated ethical responsibilities increase in tandem with the impact on the health, privacy, and well-being of individuals. Here we conducted and report a systematic literature review of ethical issues in clinical proteomics. We add our perspectives from a background of bioethics, the results of our accompanying paper extracting individual-sensitive results from patient samples, and the literature addressing similar issues in genomics. The spectrum of potential issues ranges from patient re-identification to incidental findings of clinical significance. The latter can be divided into actionable and unactionable findings. Some of these have the potential to be employed in discriminatory or privacy-infringing ways. However, incidental findings may also have great positive potential. A plasma proteome profile, for instance, could inform on the general health or disease status of an individual regardless of the narrow diagnostic question that prompted it. We suggest that early discussion of ethical issues in clinical proteomics is important to ensure that eventual regulations reflect the considered judgment of the community as well as to anticipate opportunities and problems that may arise as the technology matures further. Full Article
it Nuclear Disarmament and the Protection of Cultural Heritage By www.chathamhouse.org Published On :: Fri, 06 Oct 2017 13:24:22 +0000 Nuclear Disarmament and the Protection of Cultural Heritage Research paper sysadmin 6 October 2017 States possessing nuclear weapons should be called upon to consider and publish the risks posed to cultural heritage, and their mitigation strategies, in their nuclear-weapons doctrines and policies. — A woman walks on the roof of the Great Mosque of Djenné, a World Heritage Site, after praying. Photo: United Nations. Summary Renewed risk assessments for nuclear weapons and policies are taking place around the world in light of nuclear modernization and the changing geostrategic environment that is making the use of nuclear weapons more likely. As such the humanitarian impacts of nuclear weapons and tests have received increased attention. However, the effect on cultural heritage has so far been neglected. The potential for armed conflict to destroy cultural heritage has been recognized in international law since 1954. There is significant evidence on the impact of nuclear weapons on cultural heritage including the consequences of their use in Hiroshima and Nagasaki and the effect of nuclear-testing programmes in places of cultural significance since 1945. States that possess nuclear weapons have increased liabilities and responsibilities to protect cultural heritage and cultural rights. The need to protect cultural heritage should strengthen the case for reducing and eliminating nuclear weapons. Failure to take into account the protection of heritage in the development of nuclear weapons policies – including disarmament, non-proliferation and arms-control negotiations – significantly undermines states’ existing commitments to protecting heritage threatened by conflict. Risk assessments of the impact of nuclear weapons on cultural heritage and important cultural artefacts – and methods of preventing such catastrophic damage – should be part of protecting cultural heritage in every country and the subject of informed public debate. A new body of knowledge on the full range of nuclear weapons impacts would introduce a fresh perspective to inform decision-makers, international organizations and the public in thinking about nuclear weapons policies and practices. Risk and resilience frameworks, which provide sets of solutions for risk assessments, would allow assessments of nuclear weapons threats to heritage and highlight vulnerabilities that need to be addressed. Such frameworks would provide a basis for policymakers to identify the world’s cultural heritage most at risk and help develop mitigation strategies to ensure that it is protected. In particular, states possessing nuclear weapons should be called upon to consider and publish the risks posed to cultural heritage, and their mitigation strategies, in their nuclear weapons doctrines and policies, as a contribution to transparency and confidence-building, and as a responsibility to the world’s shared heritage. International organizations, such as the UN Educational, Scientific, and Cultural Organization (UNESCO), have a role to play in bridging security perspectives with protecting cultural heritage. 2017-10-10-nuclear disarmament-cultural-heritage-aghlani-lewis-unal-final (PDF) Full Article
it Prices, Products and Priorities: Meeting Refugees’ Energy Needs in Burkina Faso and Kenya By www.chathamhouse.org Published On :: Wed, 24 Jan 2018 15:42:49 +0000 Prices, Products and Priorities: Meeting Refugees’ Energy Needs in Burkina Faso and Kenya Other resource sysadmin 24 January 2018 As the number of displaced people increases, and aid budgets come under further pressure, the imperative to identify cost-effective and sustainable solutions for delivering energy to refugees is more pressing than ever. — Father and daughter in their shelter in Goudoubo refugee camp, Burkina Faso, March 2017. Photo: Kwesi Annim. This paper examines the issue of energy and displacement in detail, using insights from refugees in camps in Burkina Faso and Kenya. It seeks to promote a better understanding of their energy needs, priorities and preferences, and explores how increased access to energy might help to achieve lasting impact in the two camps surveyed. The paper is based on primary research from the Goudoubo camp in Burkina Faso and the Kakuma I camp in Kenya, but the analysis and conclusions are pertinent in the wider context of camps for forcibly displaced people. Summary points There is a low level of energy access in the refugee camps of Kakuma I and Goudoubo, which contributes to poverty and hampers relief and development efforts. Trying to meet basic cooking, lighting and phone-charging needs is costly for refugees, consuming a significant share of stretched monthly budgets. The predominant cooking solution consists of basic improved cookstoves burning wood and charcoal. The ‘three-stone fire’ method also remains commonplace. Three out of five families in Kakuma I report health problems due to smoke from cookstoves. Street lighting is a high priority for residents, due to concerns about security and safety in camps. In Goudoubo, 86 per cent of survey respondents said that more household members would go out after dark if there were better public lighting. A significant proportion of refugees would pay for cleaner and more efficient energy technologies, but many lack the financial resources required, and the development of markets for such products remains partially contingent on sustained financial support. There is a need for a diversity of energy technologies that give varying levels and qualities of service; a ‘one size fits all’ approach is inappropriate if universal access to sustainable energy is to be achieved. Clean cookstoves and fuels (LPG, ethanol, biogas, etc.) are in high demand, but require much greater investment if they are to be introduced at scale. Solid biomass and improved cookstoves will continue to be important cooking solutions in Kakuma I and Goudoubo, as well as in other refugee camps. A shift to more efficient cooking can be achieved at little or no extra cost for the significant proportion of people who still cook on three-stone fires. Users of quality-verified household solar products spend dramatically less on light and power than do people using inferior technologies. Strong brand recognition and a high willingness to pay indicate a large market and a significant opportunity for the solar private sector. Centralized electricity supply solutions – mini-grids or grid connections – are more economic than multiple standalone diesel generators. The current piecemeal and ad hoc approach, with each facility managing its own power supply, is inherently wasteful. Greater coordination among humanitarian clusters is required so that centralized solutions can be assessed, designed, financed and implemented. Collecting data on energy expenditure and use, as well as quantification of the wide ranging impacts of improved technologies, is necessary to build a compelling case for investment in electricity infrastructure. In addition, engaging refugees on their needs, preferences and willingness to pay can improve the sustainability and impact of energy interventions. Private-sector and market development approaches offer long-term, cost-effective solutions for refugees and can also benefit host communities. As the number of displaced people in the world increases, and as aid budgets come under further pressure, the imperative to identify cost-effective and sustainable solutions is more pressing than ever. Chatham House is a part of the Moving Energy Initiative, a consortium working towards clean energy for refugees. For more information visit movingenergy.earth 2018-01-30-meeting-refugees-energy-needs-burkina-faso-kenya-mei-corbyn-vianello-final (PDF) 2018-01-30-prix-produits-priorités-répondre-aux-besoins-énergétiques-des-réfugiés-au-Burkina-Faso-et-au-Kenya.pdf (PDF) Full Article
it Libya’s War Economy: Predation, Profiteering and State Weakness By www.chathamhouse.org Published On :: Mon, 09 Apr 2018 11:02:14 +0000 Libya’s War Economy: Predation, Profiteering and State Weakness Research paper sysadmin 9 April 2018 As Libya’s war economy persists, prospects for the restoration of functioning central governance become more distant. Summary Libya suffers from interlinked political, security and economic crises that are weakening state institutions, damaging its economy and facilitating the continued existence of non-state armed groups. As rival authorities continue to compete for power, the resulting fragmentation and dysfunction have provided a fertile environment for the development of a pervasive war economy dependent on violence. This war economy is dynamic and constantly in flux. Relative to earlier problems, there were signs of progress on several fronts in 2017: a reduction in human smuggling, a tripling in oil revenues, and increased local action against fuel smuggling. Yet the dynamics that have supported the war economy’s rise remain. Libya’s war economy is highly damaging for the future of the state for three reasons: First, it provides an enabling environment for networks of armed groups, criminal networks, corrupt businessmen and political elites to sustain their activities through illicit sales and predatory practices. Their operations are closely linked to the dispensation of violence, and are thus a spur for further conflict. Second, the war economy perpetuates negative incentives for those who profit from the state’s dysfunction. Only effective governance, supported by a durable political settlement, can tackle the foundations of Libya’s war economy. But neither a return to functioning central governance nor the development of a security sector that is fit for purpose is in the interests of war economy profiteers, who are therefore motivated to act as powerful spoilers of reform. Third, the political contestation and resource predation practised by those engaged in the war economy are having a disastrous impact on Libya’s formal economy, undermining what remains of its institutions. As the war economy persists, therefore, the prospects for the restoration of functioning central governance become more distant. This threatens to create a vicious cycle that accelerates further state collapse. Due to the limited capacity for coercion available to any actor or entity connected with the state, a strategy of co-opting networks of war economy profiteers has almost exclusively prevailed. This has failed. Drawing on the lessons from these attempts, a more successful policy must pursue targeted measures to combat the enabling structures of Libya’s war economy where possible, and to co-opt war economy profiteers only where necessary. In this, state authorities can do more to utilize what power they have to name and shame war economy profiteers in order to weaken the local legitimacy critical to profiteers’ survival. The state must present credible alternative livelihood opportunities to those engaged in, or benefiting from, the war economy. Progress will depend in part on the creation of positive incentives to abandon such activity. Where profiteers cannot be incentivized to move towards more legitimate economic activities, greater and more effective efforts must be made to reduce the profit margins of illicit schemes. The international community can do more to support Libyan efforts in countering the war economy. Cooperation over the targeting of criminal groups’ overseas assets, support for increased transparency over the dispensation of state funds, and measures to reduce the viability of illicit activities can all help to strengthen the position of state authorities. Further reading Discover the six things you need to know about Libya’s war economy 2018-04-12-libyas-war-economy-eaton-final (PDF) Full Article
it Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part One By www.chathamhouse.org Published On :: Mon, 29 Oct 2018 16:37:47 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part One Other resource sysadmin 29 October 2018 As part of a roundtable series, Chatham House and China University of Political Science and Law (CUPL) jointly organized this four-day meeting at Chatham House for international lawyers to discuss a wide range of issues related to public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For China University of Political Science and Law, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The roundtable had a total of 22 participants, 10 Chinese (from universities and other academic institutions in Beijing and Shanghai) and 12 non-Chinese (from Australia, Germany, the Netherlands, Switzerland, the United Kingdom and the United States). All discussions were held in English under the Chatham House Rule. 20140414PublicInternationalLawChina (PDF) Full Article
it Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Two By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 08:46:37 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Two Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House and China University of Political Science and Law (CUPL) held a two-day roundtable meeting in Beijing on public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting in Beijing was hosted by CUPL and involved 20 participants, 10 Chinese (from universities and other academic institutions in Beijing) and 10 non-Chinese (from Australia, the Netherlands, South Africa, Switzerland, the United Kingdom and the United States). To ensure continuity while also expanding the experts network being built, the second meeting included a mix of participants from the first meeting and some new participants. All discussions were held in English under the Chatham House Rule. 23711Roundtable2-summary (PDF) Full Article
it Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Three By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 08:55:48 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Three Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House, China University of Political Science and Law (CUPL) and the Graduate Institute Geneva held a two-day roundtable meeting in Geneva on public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting in Geneva was co-hosted by the Graduate Institute Geneva and involved 19 participants, 9 Chinese (from six research institutions in Beijing and Shanghai) and 11 non-Chinese (from eight research institutions in Australia, Germany, the Netherlands, Switzerland, the United Kingdom and the United States). To ensure continuity while also expanding the expert network being built, the third meeting included a mix of participants from the first two meetings and some new participants All discussions were held in English under the Chatham House Rule. 2016-03-05-Roundtable3-summary (PDF) Full Article
it Exploring Public International Law Issues with Chinese Scholars – Part Four By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 09:01:59 +0000 Exploring Public International Law Issues with Chinese Scholars – Part Four Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House and the China University of Political Science and Law (CUPL) held a two-day roundtable in Beijing on emerging issues of public international law. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting was co-hosted with CUPL and involved 28 participants, consisting of 19 Chinese participants (from six leading research institutions in Beijing and Shanghai) and nine nonChinese participants (from eight leading research institutions in Australia, the Netherlands, the UK, Switzerland, Canada and Singapore). To ensure continuity while also expanding the expert network being built, the fifth meeting included a mix of participants from the previous meetings and some new participants. All discussions were held in English under the Chatham House Rule. 2018-06-02-Roundtable4-summary (PDF) Full Article
it Proportionality in the Conduct of Hostilities: The Incidental Harm Side of the Assessment By www.chathamhouse.org Published On :: Thu, 06 Dec 2018 14:56:29 +0000 Proportionality in the Conduct of Hostilities: The Incidental Harm Side of the Assessment Research paper sysadmin 6 December 2018 Clarification of international humanitarian law is important in ensuring compliance with the rule of proportionality, but a culture of compliance within armed forces and groups is also crucial. — Members of civil right defence conduct a search and rescue operation on destroyed buildings after an airstrike was carried out over the city of Jisr al-Shughur in Idlib province in Syria, on 6 May 2018. Photo: Hadi Harrat/Anadolu Agency/Getty Images. Summary Military operations are taking place with increasing frequency in densely populated areas. Such operations result in loss of life and harm to civilians, as well as damage to civilian objects, (including infrastructure providing essential services). In order to protect civilians, it is imperative that armed forces and groups comply with the rules of international humanitarian law on the conduct of hostilities, including the rule of proportionality. The rule of proportionality prohibits attacks which may be expected to cause incidental loss of civilian life, injury to civilians, damage to civilian objects or a combination thereof, which would be excessive in relation to the concrete and direct military advantage anticipated. This research paper analyses the key steps that belligerents must take to give effect to the rule, with a particular focus on one side of proportionality assessments – the expected incidental harm. Those undertaking proportionality assessments before or during an attack must consider whether the expected harm will be caused by the attack, and whether that harm could be expected (that is, was it reasonably foreseeable). For the purpose of proportionality assessments, injury to civilians includes disease, and there is no reason in principle to exclude mental harm, even though it is currently challenging to identify and quantify it. Damage to civilian objects includes damage to elements of the natural environment. Once the incidental harm to be considered has been identified, a value or weight must be assigned to it. This is then balanced against the value or weight of the military advantage anticipated from the attack to determine whether the harm would be excessive. In the determination of whether the expected incidental harm would be excessive compared to the anticipated military advantage, ‘excessive’ is a wide but not indeterminate standard. Belligerents should develop methodologies so that those planning and deciding attacks are provided with all necessary information on expected incidental harm, and to assist them in assigning weight to the incidental harm to be considered. If it becomes apparent that the rule of proportionality will be contravened, the attack in question must be cancelled or suspended. Clarification of the law is important in ensuring compliance with the rule of proportionality, but a culture of compliance within armed forces and groups, inculcated by their leaders, is also crucial. 2018-12-10-proportionality-conduct-hostilities-incidental-harm-gillard-final (PDF) Full Article
it The Costs of Fuelling Humanitarian Aid By www.chathamhouse.org Published On :: Fri, 07 Dec 2018 11:59:28 +0000 The Costs of Fuelling Humanitarian Aid Research paper sysadmin 7 December 2018 As humanitarian crises become more protracted and aid budgets face unprecedented scrutiny, agencies could save millions by switching from diesel and oil fuels to cleaner energy sources. — A convoy of trucks carrying humanitarian assistance provided by the World Food Program (WFP) to Southern Sudanese refugees. Photo by ASHRAF SHAZLY/AFP/Getty Images. Download the accompanying toolkit Most refugee and internal displacement camps are in remote locations, so humanitarian agencies consume large amounts of fuel on the transport of staff, equipment, and goods such as food and water. Operations tend to rely on on-site electricity generation to power reception centres, clinics, schools, food storage, water-pumping and street lighting. Despite the essential role of energy in humanitarian action, and the UN’s stated commitment to carbon neutrality by 2020, there is no concerted effort to move away from fossil fuel to date. Summary points Agencies are paying too much for the energy they consume. They are overwhelmingly dependent on oil fuel for electricity generation, even though renewable energy solutions are reducing costs for those deploying them in similar conditions. Well-below-optimum standards of efficiency in buildings, generator use and fleet management are also the norm. Agencies typically have few incentives to do things better. There is rarely motivation to conserve fuel, nor performance indicators for energy or fuel use. In addition, energy spending and use lacks transparency. Few agencies collect and report on energy use. Where numbers are available, they are usually partial and unverified. Energy costs are rarely transparent in budgets; and donors do not know how much is being spent. We estimate that around 5 per cent of humanitarian agencies’ expenditure goes on diesel, petrol and associated costs such as fixing generators. That would mean that the sector spent some $1.2 billion on polluting fuel in 2017. Based on current best-practice, the sector could save at least 10 per cent of fuel costs on ground transport, 37 per cent through behaviour change and more efficient technologies, and 60 per cent on generation – all using currently available, affordable and proven practice and technology changes. At current prices, this could mean operational savings of over $517 million a year for the humanitarian sector, roughly equal to 5 per cent of UNHCR’s funding gap for 2017. In Kenya, annual spending on diesel and petrol for the seven agencies surveyed was $6.7 million in 2017. Replacing gensets with solar systems could create significant savings due the costs of diesel, the likelihood of protracted camp situations, and the opportunities that off-grid solar would offer for extending electricity access to refugees and local populations in Garissa and Turkana counties. In Jordan, solar energy now powers the majority of camp facilities and many households. However, the use of grid electricity by humanitarian agencies’ large head offices in Amman remains high and expensive. Improving the energy efficiency of buildings is a priority for savings. In Burkina Faso’s Goudoubo camp, NGO offices are desperately short of power – they have no computers or air-conditioning. Investment in renewable forms of energy for this and other camp services such as street lighting and water pumping would enable better service provision, and could drive increased rural energy access among host populations across this area of the Sahel. Toolkit An accompanying toolkit, Powering Ahead: Improving How We Use and Account for Energy in Humanitarian Operations, provides practical guidance for humanitarian agencies that want to make energy cost savings and reduce their carbon and emissions footprint. 2018-12-10-Costs-Humanitarian-Aid2 (PDF) Full Article
it The Role of Sub-state and Non-state Actors in International Climate Processes: Financial Institutions By www.chathamhouse.org Published On :: Thu, 20 Dec 2018 10:15:53 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes: Financial Institutions Research paper sysadmin 20 December 2018 The trillions of dollars needed to secure the sustainable, climate-compatible pathway outlined in the 2015 Paris Agreement have focused attention on private finance and investment. — Photo by João Barbosa, ‘The need to keep growing’, 2018. This is one of four background papers feeding into a synthesis paper entitled The Role of Sub-state and Non-state Actors in International Climate Processes. Summary The trillions of dollars needed to secure the sustainable, climate-compatible pathway outlined in the 2015 Paris Agreement have focused attention on private finance and investment, and on the role of the financial sector as a potentially powerful non-state actor in the international climate debate. Leading individual financial institutions reacted to the Paris Agreement by framing it in terms of what it would mean for markets – i.e. risks and opportunities – and by underlining the importance of national implementation of climate change commitments. Key recent developments signal that the financial sector actively supports Paris-compatible government action on climate change, as well as company-level action to understand the physical and ‘transition’ risks and opportunities associated with climate change and policy responses. Financial sector engagement is taking place through well-organized and well-supported international initiatives and platforms. A critical part of this process entails robust activity by financial institutions to embed climate change and broader sustainability factors into strategies and operations. At country level, attention to implementation of Nationally Determined Contributions (NDCs) and associated sector-level policy development has been largely separate from the broader ‘sustainable finance’ dynamic. National-level action has not benefited from the same level of organized financial sector involvement evident in international action. One of the reasons for this is that, with some notable exceptions, international financial initiatives lack the capacity and resources to participate in the granular detail of national policy processes. Policymakers in turn often lack the internal capacity to consult or engage with the financial sector domestically. This paper includes some thoughts on further international and national climate actions. Ensuring that messages from successful international financial sector initiatives are heard in regional and non-climate forums offers one avenue for building a stronger foundation for greater climate ambition. Building the resource base for stronger national climate policy engagement, as a counter-voice to incumbent interests and to ensure that the quality of policy is ‘investment grade’, is another. This will be critical to the delivery of policy outcomes. Other key elements include the need to pool knowledge across relevant parts of the finance sector, build alliances, and shift action towards joint problem-solving with policymakers. A ‘Talanoa 2.020’-type initiative offers one potentially promising approach to advancing dialogue in this respect. 2018-12-21-non-state-actors-climate-financial-institutions-hamilton (PDF) Full Article
it Innovative Financing for Humanitarian Energy Interventions By www.chathamhouse.org Published On :: Thu, 28 Feb 2019 03:42:23 +0000 Innovative Financing for Humanitarian Energy Interventions Research paper sysadmin 28 February 2019 This paper explores the increase in resources and funding needed to improve the access of displaced people to modern and sustainable energy services. — SOLARKIOSK stall in Talek, Kenya on 17 May 2017. Photo: Getty Images Summary In settings that host displaced and refugee communities, energy can act as an enabler for improved healthcare, education and access to clean water. More efficient sources of energy can also save money that can be reinvested in life-saving interventions. A range of challenges exist that inhibit the uptake and effective management of cleaner energy solutions in displacement settings. These are magnified by a lack of available and appropriate funding. The current funding gap is significant. In many cases, involving the private sector (both enterprises and investors) is viewed as a way to accelerate delivery of sustainable energy solutions, leverage additional capital, efficiency and expertise, and adopt more sustainable and market-based approaches. Displacement settings are an extreme example of complex and unpredictable operating environments. Traditional approaches to the financing of energy access will not be supported by the risk/return characteristics of this market opportunity, so alternative structures are needed. Such structures can include mechanisms such as grants, guarantees, ‘results-based financing’ and ‘impact bonds’. These blended financial instruments should aim to leverage first losses – whereby, in the case of default, the first loss is taken by the ‘impact-first’ investors, or guarantors, thereby fully or partially protecting ‘finance-first’ investors. Given the specific constraints of displacement settings, any financing mechanisms at present are likely to fall between the categories of providing ‘more efficient aid’ and ‘more efficient aid through markets’. They are likely to constitute a transitional step from grant-making towards the use of commercial investment vehicles. While a number of financial mechanisms could be applied to attract private-sector engagement, most remain theoretical, with few being implemented extensively or at scale. Where such financial mechanisms have already been used, access to relevant data is poor, especially in circumstances where the desired outcomes were not achieved. The Moving Energy Initiative (MEI) completed feasibility work into the concept of an energy humanitarian fund and found that, while a need for this type of facility has emerged, it sits in a difficult position between energy access, climate and humanitarian funding sources. Key donors are needed to drive forward innovative financing vehicles and further testing of these mechanisms, in order to generate market data and evidence for further iterations and additional investments. 2019-02-2019-InnovativeFinancingforHumanitarianEnergy (PDF) Full Article
it Moving Energy Initiative Learning Briefs By www.chathamhouse.org Published On :: Fri, 29 Mar 2019 15:22:51 +0000 Moving Energy Initiative Learning Briefs Research paper sysadmin 29 March 2019 Drawing on experiences from Phase II of the MEI in Burkina Faso, Kenya and Jordan, these learning briefs highlight MEI’s approach to innovation, engagement with the private-sector and host communities, and gender-sensitive energy projects. The four learning papers are intended for practitioners and policymakers working in the humanitarian sector and host-country governments. — A shelf of energy appliances in a shop in Kakuma Town, Kenya. Photo credit: Gabriela Flores Findings from Phase I of the Moving Energy Initiative (MEI) in 2015, published in the Chatham House research paper Heat, Light and Power for Refugees: Saving Lives, Reducing Costs, highlight the negative impacts of limited sustainable energy provision on the security of displaced populations. The paper also identified some of the challenges for energy programmes in this sector, such as the lack of robust data on energy access and the priorities of refugee populations. In Phase II of the MEI, Practical Action led detailed research into the energy needs of refugees in Burkina Faso and Kenya. Chatham House analysed data on global refugee energy use in displacement contexts and produced an interactive map. Energy 4 Impact explored sustainable funding options, private-sector contract models and non-wood cooking concessions. The market development and low-carbon energy initiatives in Burkina Faso, Jordan and Kenya were managed by Practical Action and Energy 4 Impact, with the support of local partners. These partners represented the MEI at multiple conferences and events to share findings and advocate for the inclusion of displaced people in the sustainable energy agenda. Drawing on experiences from Phase II of the MEI in Burkina Faso, Kenya and Jordan, these learning briefs highlight MEI’s approach to innovation, engagement with the private-sector and host communities, and gender-sensitive energy projects. The four learning papers are intended for practitioners and policymakers working in the humanitarian sector and host-country governments. 2019-03-29-PrivateSectorEnergy (PDF) 2019-03-2019-EffectiveEngagement (PDF) 2019-03-29-PoweringInnovation (PDF) 2019-03-29-EnergyProgrammeVAWG (PDF) Full Article
it Tectonic Politics: Global Political Risk in an Age of Transformation By www.chathamhouse.org Published On :: Tue, 07 May 2019 15:28:16 +0000 Tectonic Politics: Global Political Risk in an Age of Transformation Book sysadmin 7 May 2019 Political risk now affects more markets and countries than ever before and that risk will continue to rise. But traditional methods of managing political risk are no longer legitimate or effective. In Tectonic Politics, Nigel Gould-Davies explores the complex, shifting landscape of political risk and how to navigate it. He analyses trends in each form of political risk: the power to destroy, seize, regulate, and tax. He shows how each of these forms reflects a deeper transformation of the global political economy that is reordering the relationship between power, wealth, and values. In a world where everything is political, the craft of engagement is as important as the science of production and the art of the deal. The successful company must integrate that craft—the engager’s way of seeing and doing—into strategy and culture. Drawing on a career in academia, business, and diplomacy, Gould-Davies provides corporate leaders, scholars, and engaged citizens with a groundbreaking study of the fastest-rising political risk today. ‘As tectonic plates shape the earth,’ he writes, ‘so tectonic politics forges its governance.’ The book is published as part of the Insights series. Praise for Tectonic Politics All economic activity involves political risks, but few economic actors know how to analyze or address them. Nigel Gould-Davies demonstrates the central importance of politics to national and international business, and provides a guide to analyzing political risk. Business people, journalists, policymakers, and scholars will all learn from reading Tectonic Politics. Jeffry Frieden, Stanfield Professor of International Peace, Harvard University About the author Nigel Gould-Davies was an associate fellow of the Russia and Eurasia Programme at Chatham House. Purchase UK (via Amazon) Rest of world (via Brookings Institution Press) Students (via Browns Books) Full Article
it The Chatham House Sustainable Laboratories Initiative: Prior Assessment Tool By www.chathamhouse.org Published On :: Fri, 14 Jun 2019 14:02:35 +0000 The Chatham House Sustainable Laboratories Initiative: Prior Assessment Tool Other resource sysadmin 14 June 2019 Laboratories are critical for supporting effective infectious disease surveillance and outbreak response. This tool is meant to help structure a conversation between funding partners and recipient countries on how to most effectively establish or repurpose laboratories in low-resource environments. — Copyright: Getty Images/ER Productions Limited Introduction Laboratories are critical for supporting effective infectious disease surveillance and outbreak response, and lack of adequate laboratory capacity is a global challenge. As part of global health security initiatives, cooperative threat reduction efforts and international development programmes, sophisticated laboratories have been provided to mitigate biological threats and bolster a country’s capacity for detection, diagnosis and storage of high-consequence pathogens. Very often, these use the assumptions, standards and templates applied in high-income countries. However, it can be difficult or even impossible to sustain these facilities in low-resource environments. There can sometimes be limited local technical capacity and capability, which can result in a high reliance on imported expertise, skills, equipment and other resources. Sustainability can therefore be hard to achieve. In addition, when a funding partner withdraws, the laboratories can become disused, foundering without the trained personnel and financial resources to sustain them. To help address this situation, a proposal gaining increasing support internationally is to adopt an approach based on a local risk assessment, whereby laboratories are appropriately and optimally tailored to the local risks and to the resources available, both in the short and longer term, without compromising biosafety and biosecurity. A Chatham House workshop was convened in Abuja, Nigeria, in 2018 to explore what West African countries would find most appropriate in terms of building laboratory capacity, what the main challenges have been so far, and what needs to be done to improve the sustainability of laboratories in the region. It emerged that there was a need for a more structured conversation between the funding partner and recipient country early in the process – prior to embarking on the detailed planning phase for the establishment or repurposing of a laboratory. This should involve careful consideration and an assessment of existing and planned capacity, needs and contextual issues, together with proposals for how to address the issues revealed, so that any ensuing laboratory demonstrably supports the national strategy and therefore flourishes. The purpose of this tool This tool aims to provide a structure for such a conversation. Developed in close collaboration with international experts and West African stakeholders, it seeks to increase local ownership and help partners ensure they have given due attention to all the relevant aspects, including risks and benefits, that need to be considered at an early stage. It should provide clarity on what is needed and improve the sustainability of any laboratory project that might result from the discussions. The tool can be applied when a new laboratory is being considered, or when an existing laboratory is to be repurposed or strengthened. It is also appropriate for use with public health, veterinary and environmental laboratories. Although the tool was developed in the context of high-consequence pathogens in Africa, it is anticipated that it will find global application. It should support recipient countries to take stock of their capacities and capabilities, identify gaps, conduct an analysis of their needs and to develop the business case that can assist in seeking the necessary political and financial support for the laboratory. Meanwhile, it should facilitate the process of due diligence for the funding partner and provide a better understanding of what the recipient country perspective and realities are, and what the scale and nature of any investment might be. 2019-06-18-Sustainable-Laboratories-Initiative (PDF) Full Article
it Online Disinformation and Political Discourse: Applying a Human Rights Framework By www.chathamhouse.org Published On :: Tue, 05 Nov 2019 11:03:02 +0000 Online Disinformation and Political Discourse: Applying a Human Rights Framework Research paper sysadmin 5 November 2019 Although some digital platforms now have an impact on more people’s lives than does any one state authority, the international community has been slow to hold to account these platforms’ activities by reference to human rights law. — A man votes in Manhattan, New York City, during the US elections on 8 November 2016. Photo: Getty Images. This paper examines how human rights frameworks should guide digital technology. Summary Online political campaigning techniques are distorting our democratic political processes. These techniques include the creation of disinformation and divisive content; exploiting digital platforms’ algorithms, and using bots, cyborgs and fake accounts to distribute this content; maximizing influence through harnessing emotional responses such as anger and disgust; and micro-targeting on the basis of collated personal data and sophisticated psychological profiling techniques. Some state authorities distort political debate by restricting, filtering, shutting down or censoring online networks. Such techniques have outpaced regulatory initiatives and, save in egregious cases such as shutdown of networks, there is no international consensus on how they should be tackled. Digital platforms, driven by their commercial impetus to encourage users to spend as long as possible on them and to attract advertisers, may provide an environment conducive to manipulative techniques. International human rights law, with its careful calibrations designed to protect individuals from abuse of power by authority, provides a normative framework that should underpin responses to online disinformation and distortion of political debate. Contrary to popular view, it does not entail that there should be no control of the online environment; rather, controls should balance the interests at stake appropriately. The rights to freedom of thought and opinion are critical to delimiting the appropriate boundary between legitimate influence and illegitimate manipulation. When digital platforms exploit decision-making biases in prioritizing bad news and divisive, emotion-arousing information, they may be breaching these rights. States and digital platforms should consider structural changes to digital platforms to ensure that methods of online political discourse respect personal agency and prevent the use of sophisticated manipulative techniques. The right to privacy includes a right to choose not to divulge your personal information, and a right to opt out of trading in and profiling on the basis of your personal data. Current practices in collecting, trading and using extensive personal data to ‘micro-target’ voters without their knowledge are not consistent with this right. Significant changes are needed. Data protection laws should be implemented robustly, and should not legitimate extensive harvesting of personal data on the basis of either notional ‘consent’ or the data handler’s commercial interests. The right to privacy should be embedded in technological design (such as by allowing the user to access all information held on them at the click of a button); and political parties should be transparent in their collection and use of personal data, and in their targeting of messages. Arguably, the value of personal data should be shared with the individuals from whom it derives. The rules on the boundaries of permissible content online should be set by states, and should be consistent with the right to freedom of expression. Digital platforms have had to rapidly develop policies on retention or removal of content, but those policies do not necessarily reflect the right to freedom of expression, and platforms are currently not well placed to take account of the public interest. Platforms should be far more transparent in their content regulation policies and decision-making, and should develop frameworks enabling efficient, fair, consistent internal complaints and content monitoring processes. Expertise on international human rights law should be integral to their systems. The right to participate in public affairs and to vote includes the right to engage in public debate. States and digital platforms should ensure an environment in which all can participate in debate online and are not discouraged from standing for election, from participating or from voting by online threats or abuse. 2019-11-05-Online-Disinformation-Human-Rights (PDF) Full Article
it AI-driven Personalization in Digital Media: Political and Societal Implications By www.chathamhouse.org Published On :: Mon, 02 Dec 2019 12:18:52 +0000 AI-driven Personalization in Digital Media: Political and Societal Implications Research paper sysadmin 2 December 2019 The fallout from disinformation and online manipulation strategies have alerted Western democracies to the novel, nuanced vulnerabilities of our information society. This paper outlines the implications of the adoption of AI by the the legacy media, as well as by the new media, focusing on personalization. — The Reuters and other news apps seen on an iPhone, 29 January 2019. Photo: Getty Images. Summary Machine learning (ML)-driven personalization is fast expanding from social media to the wider information space, encompassing legacy media, multinational conglomerates and digital-native publishers: however, this is happening within a regulatory and oversight vacuum that needs to be addressed as a matter of urgency. Mass-scale adoption of personalization in communication has serious implications for human rights, societal resilience and political security. Data protection, privacy and wrongful discrimination, as well as freedom of opinion and of expression, are some of the areas impacted by this technological transformation. Artificial intelligence (AI) and its ML subset are novel technologies that demand novel ways of approaching oversight, monitoring and analysis. Policymakers, regulators, media professionals and engineers need to be able to conceptualize issues in an interdisciplinary way that is appropriate for sociotechnical systems. Funding needs to be allocated to research into human–computer interaction in information environments, data infrastructure, technology market trends, and the broader impact of ML systems within the communication sector. Although global, high-level ethical frameworks for AI are welcome, they are no substitute for domain- and context-specific codes of ethics. Legacy media and digital-native publishers need to overhaul their editorial codes to make them fit for purpose in a digital ecosystem transformed by ML. Journalistic principles need to be reformulated and refined in the current informational context in order to efficiently inform the ML models built for personalized communication. Codes of ethics will not by themselves be enough, so current regulatory and legislative frameworks as they relate to media need to be reassessed. Media regulators need to develop their in-house capacity for thorough research and monitoring into ML systems, and – when appropriate –proportionate sanctions for actors found to be employing such systems towards malign ends. Collaboration with data protection authorities, competition authorities and national electoral commissions is paramount for preserving the integrity of elections and of a political discourse grounded on democratic principles. Upskilling senior managers and editorial teams is fundamental if media professionals are to be able to engage meaningfully and effectively with data scientists and AI engineers. 021219 AI-driven Personalization in Digital Media final WEB (PDF) Full Article
it Secrets and Spies: UK Intelligence Accountability After Iraq and Snowden By www.chathamhouse.org Published On :: Wed, 15 Jan 2020 09:23:12 +0000 Secrets and Spies: UK Intelligence Accountability After Iraq and Snowden Book sysadmin 15 January 2020 How can democratic governments hold intelligence and security agencies to account when what they do is largely secret? Jamie Gaskarth explores how intelligence professionals view accountability in the context of 21st century politics. Using the UK as a case study, this book provides the first systematic exploration of how accountability is understood inside the secret world. It is based on new interviews with current and former UK intelligence practitioners, as well as extensive research into the performance and scrutiny of the UK intelligence machinery. The result is the first detailed analysis of how intelligence professionals view their role, what they feel keeps them honest, and how far external overseers impact on their work. The UK gathers material that helps inform global decisions on such issues as nuclear proliferation, terrorism, transnational crime, and breaches of international humanitarian law. On the flip side, the UK was a major contributor to the intelligence failures leading to the Iraq war in 2003, and its agencies were complicit in the widely discredited U.S. practices of torture and ‘rendition’ of terrorism suspects. UK agencies have come under greater scrutiny since those actions, but it is clear that problems remain. Secrets and Spies is the result of a British Academy funded project (SG151249) on intelligence accountability. The book is published as part of the Insights series. Praise for Secrets and Spies Open society is increasingly defended by secret means. For this reason, oversight has never been more important. This book offers a new exploration of the widening world of accountability for UK intelligence, encompassing informal as well as informal mechanisms. It substantiates its claims well, drawing on an impressive range of interviews with senior figures. This excellent book offers both new information and fresh interpretations. It will have a major impact. Richard Aldrich, Professor of International Security, University of Warwick, UK About the author Jamie Gaskarth is Professor of Foreign Policy and International Relations at The Open University. He was previously senior lecturer at the University of Birmingham where he taught strategy and decision-making. His research focused on the ethical dilemmas of leadership and accountability in intelligence, foreign policy, and defence. He is author/editor or co-editor of six books and served on the Academic Advisory panel for the 2015 UK National Security Strategy and Strategic Defence and Security Review. Purchase UK (via Amazon) Rest of world (via Brookings Institution Press) Students (via Browns Books) Full Article
it Gender, think-tanks and international affairs: A toolkit By www.chathamhouse.org Published On :: Tue, 09 Feb 2021 15:02:41 +0000 Gender, think-tanks and international affairs: A toolkit Other resource NCapeling 9 February 2021 Encouraging a more gender-sensitive approach for think-tank activities such as convening and debate, research and analysis, and communications and publishing. Compiled by staff at Chatham House, the Centre for Feminist Foreign Policy and the British American Security Information Council, the toolkit provides think-tanks with guidance on ways of adapting organizational structures, activities and practices in order to embed greater awareness of gender issues and adopt gender-sensitive approaches throughout their work. The toolkit is designed for all people working in international affairs think-tanks, regardless of role, experience or level of seniority. It will be particularly useful for those think-tanks that are just beginning the process of raising greater awareness of gender issues internally, as well as for those that have already begun to make changes but wish to expand this work further. The work to develop the toolkit came as a response to the commonly gendered nature of think-tanks and their activities. The toolkit recognizes the discrimination and under-representation that women often experience within the sector, as well as the relative absence of women among executive leadership, governance structures and senior researcher positions in many think-tanks. The toolkit’s focus on gender is a starting point for wider intersectional analysis and action within the think-tank community. Embedding inclusive research, convening and communication practices is not just ‘the right thing to do’. When diversity and inclusion initiatives succeed, organizations are more resilient, innovative and better at decision-making. While there has already been incremental change within think-tanks, the toolkit’s authors intend that their work will build on the important body of research and practices that already exist by encouraging think-tanks to examine their own processes and develop ways of working that focus not just on women’s representation, but on the structures and systems that perpetuate biases and inequalities. Gender, think-tanks and international affairs: a toolkit (PDF) Full Article
it War Time: Temporality and the Decline of Western Military Power By www.chathamhouse.org Published On :: Mon, 22 Feb 2021 16:21:42 +0000 War Time: Temporality and the Decline of Western Military Power Book dora.popova 22 February 2021 In War Time the Western way of war, its pace and timing, are discussed and analysed by experts who question the West’s ability to maintain its military superiority given the political and strategic failures of interventions in Iraq and Afghanistan. In War Time, war studies experts examine the trajectory of Western military power. They discuss conflicting perceptions of time anchored within Western political and military institutions, and the Western attachment to fast-paced warfare at the expense of longer-term political solutions. Divided into three sections, the book covers ‘civic militarism’ and the trajectory of Western power, Western perceptions of time and the international normative order, and military operations and temporality. War Time explains why the West has been overwhelmingly powerful on the battlefield and yet strategically and politically weak as exemplified by the return of the Taliban and the hasty evacuation of troops and personnel from Afghanistan. The book identifies policies that decision-makers must adopt to stave off the decline of Western military dominance. This book is part of the Insights series. Watch the event A special event was held in March 2021 to mark the launch of the book. View the event here. Praise for War Time War Time is a provocative consideration of the many aspects of modern military power in politics and international affairs. Though the nature of war doesn’t change, this book is particularly relevant given the changing character of modern war as we see in the Caucasus, Ukraine, the Sahel, and the Indo-Pacific region. Essential reading for political leaders, diplomats, and strategic thinkers. Lt. Gen. (Ret.) Ben Hodges, Pershing Chair in Strategic Studies, Center for European Policy Analysis; Commander, United States Army Europe, 2014–2017 About the editors Sten Rynning is professor of war studies at the University of Southern Denmark. Olivier Schmitt is professor with special responsibilities at the Center for War Studies, University of Southern Denmark, and currently director of research and studies at the French Institute for Higher National Defence Studies. Amelie Theussen is assistant professor at the Center for War Studies, University of Southern Denmark. Purchase UK (via Amazon) Rest of world (via Brookings Institution Press) Students (via Browns Books) Full Article
it Belarusians’ views on the political crisis - April 2021 By www.chathamhouse.org Published On :: Fri, 11 Jun 2021 11:27:11 +0000 Belarusians’ views on the political crisis - April 2021 Other resource NCapeling 11 June 2021 Results of a public opinion poll conducted between 20 and 30 April 2021. Chatham House surveyed a total of 937 respondents between 20 and 30 April 2021. Our survey sample corresponds to the general structure of Belarus’s urban population and is corrected and weighted by gender, age, size of respondents’ town of residence and education level. Summary After Lukashenka, the most known political figures in Belarus are pro-protest politicians: Tsikhanouskaya, Babaryka, Tsikhanouski, Kalesnikava, Tsapkala and Latushka. Viktar Babaryka is the most popular presidential candidate among Belarusian urban citizens, and Lukashenka comes second to him. State organizations and bodies are still mistrusted by more than half the population, while the army is slightly more popular than other bodies. Independent media, labour unions and human rights organizations are trusted far more than state ones. Russia leads when it comes to positive attitudes to foreign states: one in three Belarusians feel very positive about their neighbour and 79 per cent feel positive in general. 71 per cent Belarusians feel positive about China, which is the next highest indicator. Despite propaganda efforts, Ukraine, Lithuania, Poland and EU states in general are still perceived positively by more than 60 per cent of Belarusians, with fewer than 20 per cent feeling negative about them. The position on Russian interference in the Belarusian political crisis is consolidated enough: 58 per cent think that Russia should remain neutral. The rest are almost equally divided between those who think Russia should support the protest movement (19 per cent) and those who think Russia should support Lukashenka (23 per cent). 40 per cent have changed their attitude to the Russian government since it supported Lukashenka in the crisis, and 73 per cent are sure that Russia is his sole support. While 32 per cent of Belarusians see union with Russia as the most appropriate foreign policy, 46 per cent would like to be in a union with both Russia and the EU simultaneously. Almost half the population thinks that Belarusian foreign policy in the event of a pro-protest government coming to power would be oriented toward friendship and cooperation with both Russia and the West, which correlates with how the majority thinks it should be. Although 42 per cent expect foreign policy would lean toward the EU in that situation, which is less acceptable: only 25 per cent think it ‘should’. The proportion of respondents who think Belarus should remain in the Collective Security Treaty Organization is 58 per cent, while 35 per cent would like to see Belarus not belonging to any military bloc and a small share (seven per cent) would prefer Belarus to join NATO. Almost half of the population considers Lukashenka to be the major obstacle for political stability and economic development and is sure he does not care about, and in fact is a threat to, independence. In general, most Belarusians have a consolidated opinion that the authorities should start negotiating with opponents and free all political prisoners. More than half of Belarusians think that Lukashenka must leave immediately or before the end of 2021, while 27 per cent think he should leave when his term ends in 2025. The opinion that Lukashenka should rule for another term beginning in 2025 is marginal – only ten per cent support this. Expectations are not so optimistic though: only 26 per cent believe he will leave office this year. One in three thinks he will leave in 2025; a further 19 per cent say that he will stay on for further terms in office. If Lukashenka doesn’t leave, people expect an increase in emigration and unemployment, the continuation of repression in all areas of life, falling exchange rates and the tightening of dependency on Russia. Opinion on abortions is still consolidated, with only 19 per cent thinking they should be banned in most or all cases. The same applies to Lukashenka’s infamous statement that society in Belarus is not ready to have a female president: only 20 per cent agree with the opinion. 52 per cent don’t think there is a problem of wage inequality between men and women in Belarus, while 37 per cent do see an issue. Download a presentation of the survey’s main findings Belarusians’ views on the political crisis (PDF) Взгляды белорусов на политический кризис (PDF) Full Article
it Belarusians’ views on the political crisis - Nov 2021 By www.chathamhouse.org Published On :: Thu, 20 Jan 2022 10:21:52 +0000 Belarusians’ views on the political crisis - Nov 2021 Other resource NCapeling 20 January 2022 Results of a public opinion poll conducted between 1 and 10 November 2021. Chatham House surveyed a total of 767 respondents between 1 and 10 November 2021. Our survey sample corresponds to the general structure of Belarus’s urban population and is adjusted by gender, age, education level and the size of respondents’ place of residence. Summary After Aliaksandr Lukashenka, the most well-known political figures in Belarus are the protest leaders: Sviatlana Tsikhanouskaya, Viktar Babaryka, Siarhei Tsikhanouski, Valery Tsapkala, Marya Kalesnikava and Pavel Latushka. Lukashenka and Babaryka have the highest popularity ratings among Belarus’s urban population. At the same time, Lukashenka has a high negative rating: half of the city residents surveyed say that they would never vote for him. Babaryka has one of the lowest negative ratings in the country. The popularity ratings of pro-government politicians are low, and their negative ratings remain extremely high, although the latter have decreased slightly in comparison with July 2021. The popularity ratings of protest leaders are significantly higher than those of politicians who support the current government. Trust in state and independent organizations is polarized along political lines. Thus, respondents classed as hardcore protesters do not trust state structures and do trust independent ones, while Lukashenka’s supporters hold the opposite positions. Belarusians’ geopolitical orientations remain stable. The most widely preferred option for a geopolitical union is simultaneous integration with the EU and Russia. Belarusians have become increasingly negative about the possibility that Russian airbases could be established on Belarusian territory (48 per cent in November 2021, compared to 39 per cent in July 2021). Belarusians are now feeling more strongly that the situation concerning the COVID-19 pandemic has worsened: in November, more than half were beginning to respond that Belarus is unable to cope with the spread of coronavirus. Sanctions against Lukashenka and those around him are supported more widely than sanctions against state enterprises. Belarusians feel there is acute social tension in their country: almost everyone surveyed states that social tension exists, while one in every five respondents considers the situation catastrophic. A perception that there is social tension is closely related to many factors, with the strongest of all being a sense of a lack of personal safety. Only one-third of Belarusians are prepared to call the state built under Lukashenka their own. Most of the survey respondents do not trust this state to some degree, and do not believe that the state protects the interests of Belarusian citizens. Download a presentation of the survey’s main findings • Belarusians’ views on the political crisis (PDF) • Взгляды белорусов на политический кризис (PDF) Full Article
it Nonspecific DNA binding by P1 ParA determines the distribution of plasmid partition and repressor activities [Microbiology] By www.jbc.org Published On :: 2020-12-11T00:06:21-08:00 The faithful segregation, or “partition,” of many low-copy number bacterial plasmids is driven by plasmid-encoded ATPases that are represented by the P1 plasmid ParA protein. ParA binds to the bacterial nucleoid via an ATP-dependent nonspecific DNA (nsDNA)-binding activity, which is essential for partition. ParA also has a site-specific DNA-binding activity to the par operator (parOP), which requires either ATP or ADP, and which is essential for it to act as a transcriptional repressor but is dispensable for partition. Here we examine how DNA binding by ParA contributes to the relative distribution of its plasmid partition and repressor activities, using a ParA with an alanine substitution at Arg351, a residue previously predicted to participate in site-specific DNA binding. In vivo, the parAR351A allele is compromised for partition, but its repressor activity is dramatically improved so that it behaves as a “super-repressor.” In vitro, ParAR351A binds and hydrolyzes ATP, and undergoes a specific conformational change required for nsDNA binding, but its nsDNA-binding activity is significantly damaged. This defect in turn significantly reduces the assembly and stability of partition complexes formed by the interaction of ParA with ParB, the centromere-binding protein, and DNA. In contrast, the R351A change shows only a mild defect in site-specific DNA binding. We conclude that the partition defect is due to altered nsDNA binding kinetics and affinity for the bacterial chromosome. Furthermore, the super-repressor phenotype is explained by an increased pool of non-nucleoid bound ParA that is competent to bind parOP and repress transcription. Full Article
it Optimized incorporation of an unnatural fluorescent amino acid affords measurement of conformational dynamics governing high-fidelity DNA replication [DNA and Chromosomes] By www.jbc.org Published On :: 2020-12-11T00:06:21-08:00 DNA polymerase from bacteriophage T7 undergoes large, substrate-induced conformational changes that are thought to account for high replication fidelity, but prior studies were adversely affected by mutations required to construct a Cys-lite variant needed for site-specific fluorescence labeling. Here we have optimized the direct incorporation of a fluorescent un-natural amino acid, (7-hydroxy-4-coumarin-yl)-ethylglycine, using orthogonal amber suppression machinery in Escherichia coli. MS methods verify that the unnatural amino acid is only incorporated at one position with minimal background. We show that the single fluorophore provides a signal to detect nucleotide-induced conformational changes through equilibrium and stopped-flow kinetic measurements of correct nucleotide binding and incorporation. Pre-steady-state chemical quench methods show that the kinetics and fidelity of DNA replication catalyzed by the labeled enzyme are largely unaffected by the unnatural amino acid. These advances enable rigorous analysis to establish the kinetic and mechanistic basis for high-fidelity DNA replication. Full Article
it Kinetic investigation of the polymerase and exonuclease activities of human DNA polymerase ϵ holoenzyme [DNA and Chromosomes] By www.jbc.org Published On :: 2020-12-11T00:06:21-08:00 In eukaryotic DNA replication, DNA polymerase ε (Polε) is responsible for leading strand synthesis, whereas DNA polymerases α and δ synthesize the lagging strand. The human Polε (hPolε) holoenzyme is comprised of the catalytic p261 subunit and the noncatalytic p59, p17, and p12 small subunits. So far, the contribution of the noncatalytic subunits to hPolε function is not well understood. Using pre-steady-state kinetic methods, we established a minimal kinetic mechanism for DNA polymerization and editing catalyzed by the hPolε holoenzyme. Compared with the 140-kDa N-terminal catalytic fragment of p261 (p261N), which we kinetically characterized in our earlier studies, the presence of the p261 C-terminal domain (p261C) and the three small subunits increased the DNA binding affinity and the base substitution fidelity. Although the small subunits enhanced correct nucleotide incorporation efficiency, there was a wide range of rate constants when incorporating a correct nucleotide over a single-base mismatch. Surprisingly, the 3'→5' exonuclease activity of the hPolε holoenzyme was significantly slower than that of p261N when editing both matched and mismatched DNA substrates. This suggests that the presence of p261C and the three small subunits regulates the 3'→5' exonuclease activity of the hPolε holoenzyme. Together, the 3'→5' exonuclease activity and the variable mismatch extension activity modulate the overall fidelity of the hPolε holoenzyme by up to 3 orders of magnitude. Thus, the presence of p261C and the three noncatalytic subunits optimizes the dual enzymatic activities of the catalytic p261 subunit and makes the hPolε holoenzyme an efficient and faithful replicative DNA polymerase. Full Article
it A human cancer cell line initiates DNA replication normally in the absence of ORC5 and ORC2 proteins [DNA and Chromosomes] By www.jbc.org Published On :: 2020-12-11T00:06:20-08:00 The origin recognition complex (ORC), composed of six subunits, ORC1–6, binds to origins of replication as a ring-shaped heterohexameric ATPase that is believed to be essential to recruit and load MCM2–7, the minichromosome maintenance protein complex, around DNA and initiate DNA replication. We previously reported the creation of viable cancer cell lines that lacked detectable ORC1 or ORC2 protein without a reduction in the number of origins firing. Here, using CRISPR-Cas9–mediated mutations, we report that human HCT116 colon cancer cells also survive when ORC5 protein expression is abolished via a mutation in the initiator ATG of the ORC5 gene. Even if an internal methionine is used to produce an undetectable, N terminally deleted ORC5, the protein would lack 80% of the AAA+ ATPase domain, including the Walker A motif. The ORC5-depleted cells show normal chromatin binding of MCM2–7 and initiate replication from a similar number of origins as WT cells. In addition, we introduced a second mutation in ORC2 in the ORC5 mutant cells, rendering both ORC5 and ORC2 proteins undetectable in the same cells and destabilizing the ORC1, ORC3, and ORC4 proteins. Yet the double mutant cells grow, recruit MCM2–7 normally to chromatin, and initiate DNA replication with normal number of origins. Thus, in these selected cancer cells, either a crippled ORC lacking ORC2 and ORC5 and present at minimal levels on the chromatin can recruit and load enough MCM2–7 to initiate DNA replication, or human cell lines can sometimes recruit MCM2–7 to origins independent of ORC. Full Article
it 30 low-key acquisitions who could pay off big By mlb.mlb.com Published On :: Tue, 12 Feb 2019 13:57:13 EDT Fans and analysts spend the entire offseason speculating where the top free agents could go, but sometimes an under-the-radar pickup can end up making a world of difference. As positional competitions begin to heat up at Spring Training camps this month, MLB.com's beat writers were asked to identify one potentially overlooked acquisition for each of the 30 clubs. Here's who they came up with. Full Article
it Realmuto 'excited' to compete for title with Phils By mlb.mlb.com Published On :: Tue, 12 Feb 2019 19:32:42 EDT The Phillies introduced J.T. Realmuto, their new All-Star catcher, in a news conference Tuesday at the team's Spring Training complex in Clearwater, Fla. Full Article
it Manny? Harper? Klentak satisfied but monitoring By mlb.mlb.com Published On :: Thu, 14 Feb 2019 15:13:21 EDT General Manager Matt Klentak discussed the Phillies' offseason in a press conference on Thursday in Clearwater, Fla. The Phillies remain in contact with the agents for Bryce Harper and Manny Machado. The belief is that the front office still prefers Machado over Harper because of Machado's combination of offense and defense. Full Article
it Who will hit second and third for Phillies? By mlb.mlb.com Published On :: Sat, 16 Feb 2019 16:54:46 EDT Phillies manager Gabe Kapler believes the two most important spots in a lineup are the Nos. 2 and 4 holes. Rhys Hoskins and Carlos Santana hit there most of last season. But with J.T. Realmuto, Andrew McCutchen and Jean Segura joining the Phillies in the offseason, Kapler has more options. Full Article
it Segura moving forward with contending Phillies By mlb.mlb.com Published On :: Sat, 16 Feb 2019 18:17:05 EDT Jean Segura became one of the Phillies' most notable offseason acquisitions, a two-time All-Star expected to give the organization its best overall production at shortstop since Jimmy Rollins left town, in part because of a little brawl he had late last season with Mariners teammate Dee Gordon. Full Article
it With Manny off market, Phils' focus on Harper By mlb.mlb.com Published On :: Tue, 19 Feb 2019 17:54:45 EDT Bryce Harper is the final superstar standing for the Phillies. Full Article
it These are MLB's 10 best position player duos By mlb.mlb.com Published On :: Tue, 5 Feb 2019 19:20:29 EDT MLB.com looked at each team's two highest-ranked position players in WAR, according to the Steamer projections. Here are the top 10, but keep in mind that things could change once Manny Machado and Bryce Harper find homes. Full Article
it Limited to DH, Ohtani's at-bats still must-watch By mlb.mlb.com Published On :: Sun, 10 Feb 2019 14:46:30 EDT Shohei Ohtani remains a must-watch player for Angels fans in 2019, and his recovery from Tommy John surgery will be worth monitoring throughout the season as he prepares to pitch again in '20. Full Article
it 30 low-key acquisitions who could pay off big By mlb.mlb.com Published On :: Tue, 12 Feb 2019 13:57:13 EDT Fans and analysts spend the entire offseason speculating where the top free agents could go, but sometimes an under-the-radar pickup can end up making a world of difference. As positional competitions begin to heat up at Spring Training camps this month, MLB.com's beat writers were asked to identify one potentially overlooked acquisition for each of the 30 clubs. Here's who they came up with. Full Article
it Ohtani focused on next step of hitting off tee By mlb.mlb.com Published On :: Sun, 17 Feb 2019 14:55:01 EDT Shohei Ohtani is continuing to make progress in his rehab from Tommy John surgery. On Sunday, he said he is hopeful he'll be able to start hitting off a tee in the next week. Full Article
it Upton out with tendinitis; Harvey starts to throw By mlb.mlb.com Published On :: Mon, 18 Feb 2019 16:34:07 EDT The Angels will be without left fielder Justin Upton early in Spring Training, as he's dealing with right knee patellar tendinitis but is expected to be ready for Opening Day, manager Brad Ausmus said on Monday. Full Article