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Processivity of dextransucrases synthesizing very-high-molar-mass dextran is mediated by sugar-binding pockets in domain V [Glycobiology and Extracellular Matrices]

The dextransucrase DSR-OK from the Gram-positive bacterium Oenococcus kitaharae DSM17330 produces a dextran of the highest molar mass reported to date (∼109 g/mol). In this study, we selected a recombinant form, DSR-OKΔ1, to identify molecular determinants involved in the sugar polymerization mechanism and that confer its ability to produce a very-high-molar-mass polymer. In domain V of DSR-OK, we identified seven putative sugar-binding pockets characteristic of glycoside hydrolase 70 (GH70) glucansucrases that are known to be involved in glucan binding. We investigated their role in polymer synthesis through several approaches, including monitoring of dextran synthesis, affinity assays, sugar binding pocket deletions, site-directed mutagenesis, and construction of chimeric enzymes. Substitution of only two stacking aromatic residues in two consecutive sugar-binding pockets (variant DSR-OKΔ1-Y1162A-F1228A) induced quasi-complete loss of very-high-molar-mass dextran synthesis, resulting in production of only 10–13 kg/mol polymers. Moreover, the double mutation completely switched the semiprocessive mode of DSR-OKΔ1 toward a distributive one, highlighting the strong influence of these pockets on enzyme processivity. Finally, the position of each pocket relative to the active site also appeared to be important for polymer elongation. We propose that sugar-binding pockets spatially closer to the catalytic domain play a major role in the control of processivity. A deep structural characterization, if possible with large-molar-mass sugar ligands, would allow confirming this hypothesis.




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Trump’s Threat to Target Iran’s Cultural Heritage Is Illegal and Wrong

7 January 2020

Héloïse Goodley

Army Chief of General Staff Research Fellow (2018–19), International Security
Targeting cultural property is rightly prohibited under the 1954 Hague Convention.

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Donald Trump at Mar-a-Lago in December. Photo: Getty Images

As tensions escalate in the Middle East, US President Donald Trump has threatened to strike targets in Iran should they seek to retaliate over the killing of Qassem Soleimani. According to the president’s tweet, these sites includes those that are ‘important to Iran and Iranian culture’.

Defense Secretary Mark Esper was quick on Monday to rule out any such action and acknowledged that the US would ‘follow the laws of armed conflict’. But Trump has not since commented further on the matter.

Any move to target Iranian cultural heritage could constitute a breach of the international laws protecting cultural property. Attacks on cultural sites are deemed unlawful under two United Nations conventions; the 1954 Hague Convention for the Protection of Cultural Property during Armed Conflict, and the 1972 UNESCO World Heritage Convention for the Protection of the World Cultural and Natural Heritage.

These have established deliberate attacks on cultural heritage (when not militarily necessary) as a war crime under the Rome Statute of the International Criminal Court in recognition of the irreparable damage that the loss of cultural heritage can have locally, regionally and globally.

These conventions were established in the aftermath of the Second World War, in reaction to the legacy of the massive destruction of cultural property that took place, including the intense bombing of cities, and systematic plunder of artworks across Europe. The conventions recognize that damage to the cultural property of any people means ‘damage to the cultural heritage of all mankind’. The intention of these is to establish a new norm whereby protecting culture and history – that includes cultural and historical property – is as important as safeguarding people.

Such historical sites are important not simply as a matter of buildings and statues, but rather for their symbolic significance in a people’s history and identity. Destroying cultural artefacts is a direct attack on the identity of the population that values them, erasing their memories and historical legacy. Following the heavy bombing of Dresden during the Second World War, one resident summed up the psychological impact of such destruction in observing that ‘you expect people to die, but you don’t expect the buildings to die’.

Targeting sites of cultural significance isn’t just an act of intimidation during conflict. It can also have a lasting effect far beyond the cessation of violence, hampering post-conflict reconciliation and reconstruction, where ruins or the absence of previously significant cultural monuments act as a lasting physical reminder of hostilities.

For example, during the Bosnian War in the 1990s, the Old Bridge in Mostar represented a symbol of centuries of shared cultural heritage and peaceful co-existence between the Serbian and Croat communities. The bridge’s destruction in 1993 at the height of the civil war and the temporary cable bridge which took its place acted as a lasting reminder of the bitter hostilities, prompting its reconstruction a decade later as a mark of the reunification of the ethnically divided town.

More recently, the destruction of cultural property has been a feature of terrorist organizations, such as the Taliban’s demolition of the 1,700-year-old Buddhas of Bamiyan in 2001, eliciting international condemnation. Similarly, in Iraq in 2014 following ISIS’s seizure of the city of Mosul, the terrorist group set about systematically destroying a number of cultural sites, including the Great Mosque of al-Nuri with its leaning minaret, which had stood since 1172. And in Syria, the ancient city of Palmyra was destroyed by ISIS in 2015, who attacked its archaeological sites with bulldozers and explosives.

Such violations go beyond destruction: they include the looting of archaeological sites and trafficking of cultural objects, which are used to finance terrorist activities, which are also prohibited under the 1954 Hague Convention.

As a war crime, the destruction of cultural property has been successfully prosecuted in the International Criminal Court, which sentenced Ahmad Al-Faqi Al-Mahdi to nine years in jail in 2016 for his part in the destruction of the Timbuktu mausoleums in Mali. Mahdi led members of Al-Qaeda in the Islamic Maghreb to destroy mausoleums and monuments of cultural and religious importance in Timbuktu, irreversibly erasing what the chief prosecutor described as ‘the embodiment of Malian history captured in tangible form from an era long gone’.

Targeting cultural property is prohibited under customary international humanitarian law, not only by the Hague Convention. But the Convention sets out detailed regulations for protection of such property, and it has taken some states a lot of time to provide for these.

Although the UK was an original signatory to the 1954 Hague Convention, it did not ratify it until 2017, introducing into law the Cultural Property (Armed Conflicts) Act 2017, and setting up the Cultural Protection Fund to safeguard heritage of international importance threatened by conflict in countries across the Middle East and North Africa.

Ostensibly, the UK’s delay in ratifying the convention lay in concerns over the definition of key terms and adequate criminal sanctions, which were addressed in the Second Protocol in 1999. However, changing social attitudes towards the plunder of antiquities, and an alarming increase in the use of cultural destruction as a weapon of war by extremist groups to eliminate cultures that do not align with their own ideology, eventually compelled the UK to act.

In the US, it is notoriously difficult to get the necessary majority for the approval of any treaty in the Senate; for the Hague Convention, approval was achieved in 2008, following which the US ratified the Convention in 2009.

Destroying the buildings and monuments which form the common heritage of humanity is to wipe out the physical record of who we are. People are people within a place, and they draw meaning about who they are from their surroundings. Religious buildings, historical sites, works of art, monuments and historic artefacts all tell the story of who we are and how we got here. We have a responsibility to protect them.




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Legal Provision for Crisis Preparedness: Foresight not Hindsight

21 April 2020

Dr Patricia Lewis

Research Director, Conflict, Science & Transformation; Director, International Security Programme
COVID-19 is proving to be a grave threat to humanity. But this is not a one-off, there will be future crises, and we can be better prepared to mitigate them.

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Examining a patient while testing for COVID-19 at the Velocity Urgent Care in Woodbridge, Virginia. Photo by Chip Somodevilla/Getty Images.

A controversial debate during COVID-19 is the state of readiness within governments and health systems for a pandemic, with lines of the debate drawn on the issues of testing provision, personal protective equipment (PPE), and the speed of decision-making.

President Macron in a speech to the nation admitted French medical workers did not have enough PPE and that mistakes had been made: ‘Were we prepared for this crisis? We have to say that no, we weren’t, but we have to admit our errors … and we will learn from this’.

In reality few governments were fully prepared. In years to come, all will ask: ‘how could we have been better prepared, what did we do wrong, and what can we learn?’. But after every crisis, governments ask these same questions.

Most countries have put in place national risk assessments and established processes and systems to monitor and stress-test crisis-preparedness. So why have some countries been seemingly better prepared?

Comparing different approaches

Some have had more time and been able to watch the spread of the disease and learn from those countries that had it first. Others have taken their own routes, and there will be much to learn from comparing these different approaches in the longer run.

Governments in Asia have been strongly influenced by the experience of the SARS epidemic in 2002-3 and - South Korea in particular - the MERS-CoV outbreak in 2015 which was the largest outside the Middle East. Several carried out preparatory work in terms of risk assessment, preparedness measures and resilience planning for a wide range of threats.

Case Study of Preparedness: South Korea

By 2007, South Korea had established the Division of Public Health Crisis Response in Korea Centers for Disease Control and Prevention (KCDC) and, in 2016, the KCDC Center for Public Health Emergency Preparedness and Response had established a round-the-clock Emergency Operations Center with rapid response teams.

KCDC is responsible for the distribution of antiviral stockpiles to 16 cities and provinces that are required by law to hold and manage antiviral stockpiles.

And, at the international level, there are frameworks for preparedness for pandemics. The International Health Regulations (IHR) - adopted at the 2005 World Health Assembly and binding on member states - require countries to report certain disease outbreaks and public health events to the World Health Organization (WHO) and ‘prevent, protect against, control and provide a public health response to the international spread of disease in ways that are commensurate with and restricted to public health risks, and which avoid unnecessary interference with international traffic and trade’.

Under IHR, governments committed to a programme of building core capacities including coordination, surveillance, response and preparedness. The UN Sendai Framework for Disaster Risk highlights disaster preparedness for effective response as one of its main purposes and has already incorporated these measures into the Sustainable Development Goals (SDGs) and other Agenda 2030 initiatives. UN Secretary-General António Guterres has said COVID-19 ‘poses a significant threat to the maintenance of international peace and security’ and that ‘a signal of unity and resolve from the Council would count for a lot at this anxious time’.

Case Study of Preparedness: United States

The National Institutes of Health (NIH) and the Center for Disease Control (CDC) established PERRC – the Preparedness for Emergency Response Research Centers - as a requirement of the 2006 Pandemic and All-Hazards Preparedness Act, which required research to ‘improve federal, state, local, and tribal public health preparedness and response systems’.

The 2006 Act has since been supplanted by the 2019 Pandemic and All-Hazards Preparedness and Advancing Innovation Act. This created the post of Assistant Secretary for Preparedness and Response (ASPR) in the Department for Health and Human Services (HHS) and authorised the development and acquisitions of medical countermeasures and a quadrennial National Health Security Strategy.

The 2019 Act also set in place a number of measures including the requirement for the US government to re-evaluate several important metrics of the Public Health Emergency Preparedness cooperative agreement and the Hospital Preparedness Program, and a requirement for a report on the states of preparedness and response in US healthcare facilities.

This pandemic looks set to continue to be a grave threat to humanity. But there will also be future pandemics – whether another type of coronavirus or a new influenza virus – and our species will be threatened again, we just don’t know when.

Other disasters too will befall us – we already see the impacts of climate change arriving on our doorsteps characterised by increased numbers and intensity of floods, hurricanes, fires, crop failure and other manifestations of a warming, increasingly turbulent atmosphere and we will continue to suffer major volcanic eruptions, earthquakes and tsunamis. All high impact, unknown probability events.

Preparedness for an unknown future is expensive and requires a great deal of effort for events that may not happen within the preparers’ lifetimes. It is hard to imagine now, but people will forget this crisis, and revert to their imagined projections of the future where crises don’t occur, and progress follows progress. But history shows us otherwise.

Preparations for future crises always fall prey to financial cuts and austerity measures in lean times unless there is a mechanism to prevent that. Cost-benefit analyses will understandably tend to prioritise the urgent over the long-term. So governments should put in place legislation – or strengthen existing legislation – now to ensure their countries are as prepared as possible for whatever crisis is coming.

Such a legal requirement would require governments to report back to parliament every year on the state of their national preparations detailing such measures as:

  • The exact levels of stocks of essential materials (including medical equipment)
  • The ability of hospitals to cope with large influx of patients
  • How many drills, exercises and simulations had been organised – and their findings
  • What was being done to implement lessons learned & improve preparedness

In addition, further actions should be taken:

  • Parliamentary committees such as the UK Joint Committee on the National Security Strategy should scrutinise the government’s readiness for the potential threats outlined in the National Risk register for Civil Emergencies in-depth on an annual basis.
  • Parliamentarians, including ministers, with responsibility for national security and resilience should participate in drills, table-top exercises and simulations to see for themselves the problems inherent with dealing with crises.
  • All governments should have a minister (or equivalent) with the sole responsibility for national crisis preparedness and resilience. The Minister would be empowered to liaise internationally and coordinate local responses such as local resilience groups.
  • There should be ring-fenced budget lines in annual budgets specifically for preparedness and resilience measures, annually reported on and assessed by parliaments as part of the due diligence process.

And at the international level:

  • The UN Security Council should establish a Crisis Preparedness Committee to bolster the ability of United Nations Member States to respond to international crisis such as pandemics, within their borders and across regions. The Committee would function in a similar fashion as the Counter Terrorism Committee that was established following the 9/11 terrorist attacks in the United States.
  • States should present reports on their level of preparedness to the UN Security Council. The Crisis Preparedness Committee could establish a group of experts who would conduct expert assessments of each member state’s risks and preparedness and facilitate technical assistance as required.
  • Regional bodies such as the OSCE, ASEAN and ARF, the AU, the OAS, the PIF etc could also request national reports on crisis preparedness for discussion and cooperation at the regional level.

COVID-19 has been referred to as the 9/11 of crisis preparedness and response. Just as that shocking terrorist attack shifted the world and created a series of measures to address terrorism, we now recognise our security frameworks need far more emphasis on being prepared and being resilient. Whatever has been done in the past, it is clear that was nowhere near enough and that has to change.

Case Study of Preparedness: The UK

The National Risk Register was first published in 2008 as part of the undertakings laid out in the National Security Strategy (the UK also published the Biological Security Strategy in July 2018). Now entitled the National Risk Register for Civil Emergencies it has been updated regularly to analyse the risks of major emergencies that could affect the UK in the next five years and provide resilience advice and guidance.

The latest edition - produced in 2017 when the UK had a Minister for Government Resilience and Efficiency - placed the risk of a pandemic influenza in the ‘highly likely and most severe’ category. It stood out from all the other identified risks, whereas an emerging disease (such as COVID-19) was identified as ‘highly likely but with moderate impact’.

However, much preparatory work for an influenza pandemic is the same as for COVID-19, particularly in prepositioning large stocks of PPE, readiness within large hospitals, and the creation of new hospitals and facilities.

One key issue is that the 2017 NHS Operating Framework for Managing the Response to Pandemic Influenza was dependent on pre-positioned ’just in case’ stockpiles of PPE. But as it became clear the PPE stocks were not adequate for the pandemic, it was reported that recommendations about the stockpile by NERVTAG (the New and Emerging Respiratory Virus Threats Advisory Group which advises the government on the threat posed by new and emerging respiratory viruses) had been subjected to an ‘economic assessment’ and decisions reversed on, for example, eye protection.

The UK chief medical officer Dame Sally Davies, when speaking at the World Health Organization about Operation Cygnus – a 2016 three-day exercise on a flu pandemic in the UK – reportedly said the UK was not ready for a severe flu attack and ‘a lot of things need improving’.

Aware of the significance of the situation, the UK Parliamentary Joint Committee on the National Security Strategy launched an inquiry in 2019 on ‘Biosecurity and human health: preparing for emerging infectious diseases and bioweapons’ which intended to coordinate a cross-government approach to biosecurity threats. But the inquiry had to postpone its oral hearings scheduled for late October 2019 and, because of the general election in December 2019, the committee was obliged to close the inquiry.




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Webinar: Coordinating the Fight Against Financial Crime

Corporate Members Event Webinar

1 July 2020 - 5:00pm to 6:00pm
Add to Calendar

Che Sidanius, Global Head of Regulation & Industry Affairs, Refinitiv

Patricia Sullivan, Global Co-Head, Financial Crime Compliance, Standard Chartered

Dame Sara Thornton, Independent Anti-Slavery Commissioner, UK

Chair: Tom Keatinge, Director, Centre for Financial Crime and Security Studies, RUSI

 

Illicit finance not only threatens financial stability and inclusion but also provides support for terrorism and is a primary incentive for human trafficking, the illegal wildlife trade and narcotics smuggling. Frequently, actors capitalize on loopholes and inefficiencies resulting from the lack of a coordinated response to financial crime and an underpowered global system for tracking illicit financial flows. Enhanced public-private partnerships, in addition to investment in tackling financial crime from governments, international bodies and private industries, are necessary to develop regulatory frameworks, effective responses and valuable coordination between law enforcement, policymakers, regulators and financial institutions. But how should businesses structure their efforts so that their business interests are protected and the work they do is of use to others fighting financial crime?

This webinar will explore solutions to enable public-private partnerships to work together to combat financial crime. What do successful partnerships need from each side to ensure that the work being done is efficient and effective? How can the industry’s internal effectiveness impact the ‘real-world’ victims? And what barriers impede public-private partnerships operating as a force for good? 

This event is part of a fortnightly series of 'Business in Focus' webinars reflecting on the impact of COVID-19 on areas of particular professional interest for our corporate members and giving circles.

Not a corporate member? Find out more.




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Webinar: Will COVID-19 Mark the Endgame for Iraq's Muhasasa Ta'ifia?

Research Event

30 April 2020 - 2:00pm to 3:00pm

Event participants

Ahmed Tabaqchali, Chief Investment Officer, Asia Frontier Capital Iraq Fund; Adjunct Assistant Professor, American University of Iraq Sulaimani
Moderator: Renad Mansour, Senior Research Fellow, Middle East and North Africa Programme, Chatham House

Control of oil rents underpins Iraq’s post-2003 political order. This political order, known as Muhasasa Ta’ifia (ethno-sectarian apportionment), features an elite bargain inclusive of all major ethnic and sect-based political groups. It has enabled the state's continuity and apparent stability through multiple crises, including the 2008 financial crisis, the 2014 oil crisis, and the war with ISIS.

In a recent article, Ahmed Tabaqchali examines how the crash in oil rents, brought about by COVID-19’s disruption of the world economy, exposes the structural inconsistencies and inherent contradictions of the Muhasasa Tai’fia system. The article argues that the current Iraqi political elite is ill-equipped to resolve the multi-faceted challenge facing the country because of its increasing fragmentation and the erosion of its legitimacy, advanced institutional decay and fundamentally different oil dynamics.

In this webinar, part of the Chatham House project on the future of the state in the Middle East and North Africa, the article’s author will discuss the deficiencies of the Muhasasa Ta’ifia system and will offer his insight into the future of this governance model in the context of a worsening economic crisis resulting from the COVID-19 pandemic and existing demographic pressures.
 
You can express your interest in attending by following this link. You will receive a Zoom confirmation email should your registration be successful. Alternatively, you can watch the event live on the MENA Programme Facebook page.
 

Reni Zhelyazkova

Programme Coordinator, Middle East and North Africa Programme
+44 (0)20 7314 3624




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Syria Showcases the Failure to Engage Locals in Development

20 August 2015

Kholoud Mansour

Former Academy Associate
The problems of the international humanitarian response in the war-torn country are part of a broader difficulty in connecting development with local sustainability.

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UN Deputy Special Envoy to Syria Ramzy Ezzeldin Ramzy, UNDP Representative in Syria Yacoub al-Helo and the commissioner general of UNRWA, Pierre Krahenbuhl, answer questions during an interview on 14 April 2015 in Damascus. Photo by Getty Images.

The international community’s response to the Syria crisis has been unsatisfactory on many fronts, and humanitarian aid and development is no exception. While there has been renewed emphasis by development organizations on the importance of engaging local actors − notably highlighted in the new Sustainable Development Goals − the reality is this has been woefully lacking in practice. And Syria is simply one example of many where the failure of UN agencies and other humanitarian actors to partner with local actors has hampered the response to humanitarian crises.

Double standards

The problem is that international agencies usually have high and unfair expectations from Syrian individuals and organizations, requiring them to speak the ‘language’ of development, meet international standards, and demonstrate a wide range of expertise. However, these demands are not reciprocated by international organizations and experts being expected to have the same depth of knowledge of the local context in which they are operating. In addition, while Syrian actors are expected to be neutral, impartial and politically unaffiliated, foreign aid appears to be driven − explicitly and unashamedly − by the political objectives of the donor countries.

There is a double standard at work. In many cases, international ‘experts’ on Syria have little local knowledge, but there are no channels to measure or question their level of expertise. At the same time, including local Syrians in decision-making is seen as a threat to predetermined objectives, rather than as an asset.

Syrians could add an indispensable source of knowledge and context to international agencies, as well as add local credibility. But too often they are brought on board to be part of the humanitarian and development picture or to get their simple feedback for evaluation and needs assessment reports to satisfy donors’ requirements, rather than employed as an integral component of designing and implementing projects. Though some of this is down to a pretext of lack of capacity, it raises the question of whether there is an international political willingness and genuine organizational courage to involve Syrians at programming, decision and policy making-levels.

The importance of local

The Syrian example is not isolated. While there is now a debate to encourage engaging local actors, this does not happen in practice. The Local to Global Protection Initiative study reported that local and national humanitarian actors received only 0.2% of the overall direct global humanitarian response in 2013.

Moreover, the international humanitarian and development systems are designed, together with foreign aid policy, to be self-contained and to exclude local actors. This allows donor governments to use the systems as political tools for leveraging control. It is equally difficult for both outsiders as well as insiders to understand how the system really functions. The UN-led coordination structure is one example of the heavy international architecture that remains unable to reform itself, learn from its previous mistakes, or to engage with local actors.

And that engagement matters. The Independent Research Forum emphasized in its brief in February 2014 how engaging local researchers and implementing bottom-up participatory learning can make countries better prepared to achieve the post-2015 Sustainable Development Goals. Those goals, as well as the upcoming World Humanitarian Summit, highlight the importance of including local actors in the humanitarian and development responses.

Moving forward

Fortunately, such initiatives are creating a momentum within the development community to make radical changes through bottom-up approaches that put sustainability into practice. But if the Sustainable Development Goals want to affect real change, there will have to be a significant drive to move from rhetoric and ‘intentions’ to reality and actions. Currently it seems that the international community prefers to simply maintain the current status quo. It only takes a brief reflection on how many Syrians are included in every project or programme and how many Syrians are in positions to contribute at the policy and decision-making levels to realise the scale of the impetus required to change this system. To make that change might provide an opportunity for Syrians to restore some of the ownership to the outcomes and decisions of their conflict.

To comment on this article, please contact Chatham House Feedback




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Thematic Review Series: Glycerolipids. DGAT enzymes and triacylglycerol biosynthesis

Chi-Liang Eric Yen
Nov 1, 2008; 49:2283-2301
Thematic Reviews




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Brain manganese and the balance between essential roles and neurotoxicity [Molecular Bases of Disease]

Manganese (Mn) is an essential micronutrient required for the normal development of many organs, including the brain. Although its roles as a cofactor in several enzymes and in maintaining optimal physiology are well-known, the overall biological functions of Mn are rather poorly understood. Alterations in body Mn status are associated with altered neuronal physiology and cognition in humans, and either overexposure or (more rarely) insufficiency can cause neurological dysfunction. The resultant balancing act can be viewed as a hormetic U-shaped relationship for biological Mn status and optimal brain health, with changes in the brain leading to physiological effects throughout the body and vice versa. This review discusses Mn homeostasis, biomarkers, molecular mechanisms of cellular transport, and neuropathological changes associated with disruptions of Mn homeostasis, especially in its excess, and identifies gaps in our understanding of the molecular and biochemical mechanisms underlying Mn homeostasis and neurotoxicity.




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COVID-19 Crisis – Business as Usual for Gaza?

6 May 2020

Mohammed Abdalfatah

Asfari Foundation Academy Fellow
The COVID-19 pandemic has brought unprecedented challenges, economic collapse and strict lockdowns in many parts of the world. For the people of Gaza, this reality is nothing new.

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Palestinians light fireworks above the rubble during the Muslim holy month of Ramadan amid concerns about the spread of the coronavirus disease (COVID-19), in Gaza City , 30 April 2020. Photo by Majdi Fathi/NurPhoto via Getty Images.

In August 2012, when the UN released its report Gaza in 2020: A liveable place?, they could not have imagined what the world would look like in 2020: cities under lockdown, restrictions on movement, border closures, widespread unemployment, economic collapse, fear and anxiety and, above all, uncertainty about what the future holds.

For Gaza’s population of 2 million people this reality is nothing new. The conditions that the rest of the world are currently experiencing as a result of the COVID-19 pandemic is similar to the tight blockade Gaza has been living under ever since Hamas took over in 2007. Israel has imposed severe restrictions on the movement of people and goods, youth unemployment has reached 60 per cent, and over 80 per cent of Gaza’s population are now dependent on international aid.

The people of Gaza are having to face the COVID-19 crisis already at a disadvantage, with poor infrastructure, limited resources and a shortage of the most basic services, such as water and power supply. It also has a fragile health system, with hospitals lacking essential medical supplies and equipment, as well as the capacity to deal with the outbreak as there are only 84 ICU beds and ventilators available.

 

Meanwhile, intra-Palestinian divisions have persisted and were evident in the initial reaction to the pandemic. When President Mahmoud Abbas announced a state of emergency, it took two days for the Hamas-led government in Gaza to follow suit and shut down schools and universities. They later made a separate emergency appeal to address the crisis and prepare for a COVID-19 response in Gaza. This lack of coordination is typical of the way the Palestinian Authority and Hamas approach crisis situations.

After the initial uncoordinated response, Hamas, as the de-facto ruler of Gaza, has asserted its ability to control Gaza’s borders by putting in place quarantine measures for everyone who enters the strip, whether through the Erez checkpoint with Israel or the Rafah border with Egypt. They have also assigned 21 hospitals, hotels, and schools as compulsory quarantine centres for all arrivals from abroad, who have to stay in quarantine for 21 days. In comparison, there are 20 quarantine centres in the West Bank.  These strict measures have prevented the spread of the virus in the community and confined it to the quarantine centres, with only 20 confirmed cases of COVID-19 as of 6 May. Gaza’s de-facto authorities have also been able to monitor markets and prices to ensure the availability of essential goods.

Faced with a major crisis, Al-Qassam Brigades – the armed wing of Hamas – have tried to play the role of a national army by participating in efforts to fight the pandemic. They have relatively good logistical capacity and have contributed to the construction of two quarantine facilities with a total capacity of 1,000 units to prepare for more arrivals into Gaza. At the local level, municipalities have been disinfecting public spaces and facilities in addition to disseminating information about the virus and related preventative and protective measures. Other precautionary measures put in place include closing the weekly open markets, and restricting social gatherings like weddings and funerals.

Despite COVID-19, it’s business as usual when it comes to international dealings with Gaza. The key parties in the conflict – Israel, Hamas and the Palestinian Authority – along with the main external actors – Egypt, the United Nations and Qatar – have continued to stick to their policies aimed at keeping the security situation under control and preventing further escalation. Although Israel has allowed entry of pharmaceutical supplies and medical equipment into Gaza during the pandemic, it has kept its restrictions on the movement of goods and people in place, while keeping a close eye on the development of the COVID-19 outbreak in Gaza – a major outbreak here would be a nightmare scenario for Israel.

Meanwhile, Qatar has continued to address the humanitarian and economic needs of Gaza in an attempt to ease the pressure and prevent further escalation. It has pledged $150 million over the next six months to help families in Gaza from poorer backgrounds. Gaza has also been discussed by the Middle East Quartet, as Nickolay Mladenov, the UN special coordinator for the Middle East Peace Process, expressed his concern about the risk of a disease outbreak in Gaza during a call with the members of the Quartet.

Amid the pandemic, threats are still being exchanged between Israel and Hamas. The Israeli defence minister, Naftali Bennett, requested that in return for providing humanitarian aid to Gaza, Hamas agrees to return the remains of two Israeli soldiers killed in the 2014 war. While openly rejecting Bennett's statement, the leader of Hamas in Gaza, Yahya Sinwar, has offered to move forward with a prisoner swap deal if Israel agrees to release elderly prisoners and detainees in addition to detained women and children. Though dealing with its own COVID-19 outbreak, Egypt has started to mediate between the two parties in an attempt to stabilize the situation and reach a prisoner swap deal.

In the wake of this pandemic, lessons should be learned and policies should be examined, by all parties. Firstly, Israel should re-evaluate its security measures towards Gaza by easing restrictions on movement and trade which would have a positive impact on living conditions for Gaza’s population. The current measures have proven to be unsustainable and have contributed to the endless cycle of violence. Secondly, the intra-Palestinian division should end, to save Palestinians from contradictory policies and insufficient capacity on both sides. In fact, all previous attempts have failed to end this self-destructive division and this is due to the absence of political will on both sides. Elections seem to be the only viable path towards unity. Finally, efforts by the international community should go beyond stabilizing the security situation and ongoing crisis inside Gaza, where disruption of normal life is the norm.

While the world has reacted to this pandemic with a whole host of new policies and emergency measures, it has remained business as usual when dealing with Gaza. Should COVID-19 spread in Gaza, its people – who have already paid the price of a continuous blockade and intra-Palestinian division for 13 years – will pay a heavy price yet again. However, this time it is not a crisis that they alone will have to face.




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Undercurrents: Episode 4 – Illegal Hospital Detentions in Africa, and LGBTQ+ Rights in Lebanon




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Drugs and Organized Crime: The Challenges Facing Southeast Asia




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A Decade on from the Financial Crisis: the Legacy and Lessons of 2008 - The Rt Hon Lord Darling of Roulanish




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Undercurrents: Episode 18 - The American Dream vs America First, and Uganda's Illegal Ivory Trade




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Undercurrents: Episode 21 - EU-US Relations after the Midterms, and Tackling the Illegal Wildlife Trade in Africa




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Dark Commerce: Technology’s Contribution to the Illegal Economy




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Undercurrents: Episode 25 - The End of Liberal Foreign Policy, and the Legacy of the Paris Peace Conference




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Undercurrents: Episode 27 - Financing for Developing Countries, and Investigative Journalism in West Africa




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Undercurrents: Episode 33 - Chinese Millennials, and Attacks on Infrastructure in Gaza




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Tectonic Politics: Navigating New Geopolitical Risks




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Zimbabwe’s International Engagement




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Undercurrents: Summer Special - Allison Gardner on Artificial Intelligence




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Legal Determinants of Health




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Plaintiff in Chief: President Trump and the American Legal System




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Challenges and Opportunities in the Fight Against Corruption




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Investigating Violations of International Humanitarian Law




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Undercurrents: Episode 45 - Politics in Kazakhstan, and Youth Engagement in Politics




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Undercurrents: Episode 51 - Preparing for Pandemics, and Gandhi's Chatham House Speech




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Structural basis of cell-surface signaling by a conserved sigma regulator in Gram-negative bacteria [Molecular Biophysics]

Cell-surface signaling (CSS) in Gram-negative bacteria involves highly conserved regulatory pathways that optimize gene expression by transducing extracellular environmental signals to the cytoplasm via inner-membrane sigma regulators. The molecular details of ferric siderophore-mediated activation of the iron import machinery through a sigma regulator are unclear. Here, we present the 1.56 Å resolution structure of the periplasmic complex of the C-terminal CSS domain (CCSSD) of PupR, the sigma regulator in the Pseudomonas capeferrum pseudobactin BN7/8 transport system, and the N-terminal signaling domain (NTSD) of PupB, an outer-membrane TonB-dependent transducer. The structure revealed that the CCSSD consists of two subdomains: a juxta-membrane subdomain, which has a novel all-β-fold, followed by a secretin/TonB, short N-terminal subdomain at the C terminus of the CCSSD, a previously unobserved topological arrangement of this domain. Using affinity pulldown assays, isothermal titration calorimetry, and thermal denaturation CD spectroscopy, we show that both subdomains are required for binding the NTSD with micromolar affinity and that NTSD binding improves CCSSD stability. Our findings prompt us to present a revised model of CSS wherein the CCSSD:NTSD complex forms prior to ferric-siderophore binding. Upon siderophore binding, conformational changes in the CCSSD enable regulated intramembrane proteolysis of the sigma regulator, ultimately resulting in transcriptional regulation.




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A neuroglobin-based high-affinity ligand trap reverses carbon monoxide-induced mitochondrial poisoning [Molecular Biophysics]

Carbon monoxide (CO) remains the most common cause of human poisoning. The consequences of CO poisoning include cardiac dysfunction, brain injury, and death. CO causes toxicity by binding to hemoglobin and by inhibiting mitochondrial cytochrome c oxidase (CcO), thereby decreasing oxygen delivery and inhibiting oxidative phosphorylation. We have recently developed a CO antidote based on human neuroglobin (Ngb-H64Q-CCC). This molecule enhances clearance of CO from red blood cells in vitro and in vivo. Herein, we tested whether Ngb-H64Q-CCC can also scavenge CO from CcO and attenuate CO-induced inhibition of mitochondrial respiration. Heart tissue from mice exposed to 3% CO exhibited a 42 ± 19% reduction in tissue respiration rate and a 33 ± 38% reduction in CcO activity compared with unexposed mice. Intravenous infusion of Ngb-H64Q-CCC restored respiration rates to that of control mice correlating with higher electron transport chain CcO activity in Ngb-H64Q-CCC–treated compared with PBS-treated, CO-poisoned mice. Further, using a Clark-type oxygen electrode, we measured isolated rat liver mitochondrial respiration in the presence and absence of saturating solutions of CO (160 μm) and nitric oxide (100 μm). Both CO and NO inhibited respiration, and treatment with Ngb-H64Q-CCC (100 and 50 μm, respectively) significantly reversed this inhibition. These results suggest that Ngb-H64Q-CCC mitigates CO toxicity by scavenging CO from carboxyhemoglobin, improving systemic oxygen delivery and reversing the inhibitory effects of CO on mitochondria. We conclude that Ngb-H64Q-CCC or other CO scavengers demonstrate potential as antidotes that reverse the clinical and molecular effects of CO poisoning.




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Negative Emissions and Managing Climate Risks Scenarios

Research Event

4 July 2019 - 1:30pm to 5:00pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

This half-day strategic workshop, organized by Chatham House and E3G, brought together key climate experts, policymakers and influential actors, especially in Europe, for a focused and facilitated discussion on the roles, risks and potentials of negative emissions technologies (NETs). 

An interactive scenario exercise will be conducted, drawing on a climate simulation tool developed by Climate Interactive, to consider the potential roles and risks of different NETs deployments to meet the Paris Agreement targets and to consider the international co-operation required to manage the pathway to net-zero emissions. Participants will explore the political opportunities, discuss different scenarios and risks and identify areas of interventions and collective action.

The meeting is part of a series of events being held at Chatham House as part of London Climate Action Week (LCAW).




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Maintaining Connections: How Might the UK Remain Engaged in the EU's Climate and Energy Strategies?

Invitation Only Research Event

3 March 2020 - 10:30am to 12:00pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

As the UK leaves the EU and the formal negotiations on the future relationship begins, this workshop will discuss any immediate changes and review the short and medium term impacts of Brexit on the energy sector. 

The workshop will look to cover:

  • The implications for UK business and system operations of the UK leaving the Internal Energy Market.
  • Current and future investment trends in the UK energy system.
  • The trade of electricity and gas over inter-connectors.
  • The need for the development of a new EU-UK operational framework mechanism.
  • The UK's EU withdrawal agreement and the operation of the Single Electricity Market (SEM) across Ireland. 
  • Options for the UK outside of the EU Emissions Trading System (ETS) and the impact on carbon prices.

This workshop is part of a programme funded by the UK Energy Research Centre on Brexit and the UK’s Net Zero Energy Policy being run by the University of Warwick and Chatham House.

Attendance at this event is by invitation only.

Event attributes

Chatham House Rule

Chloé Prendleloup






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Closing the Global Access Gap in Palliative Care and Pain Relief: A Top Priority in Achieving Universal Health Coverage

Invitation Only Research Event

17 July 2019 - 12:30pm to 5:00pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Dr Tedros Adhanom Ghebreyesus, Director-General, World Health Organization 

The Lancet Commission on Palliative Care and Pain Relief estimated that in 2015, 61 million people experienced serious health-related suffering (SHS) that could have been ameliorated by palliative care. A large proportion of this burden – more than 80 per cent – fell on low- and middle-income countries (LMICs) despite an essential package of palliative care and pain relief services being cost-effective and affordable. As the director general of the World Health Organization (WHO) argues, there cannot be UHC without palliative care and thus, closing this coverage gap should be a top priority for the global UHC movement.

The Centre on Global Health Security at Chatham House, building on the momentum of the Lancet Commission, is hosting a roundtable focused on the global unmet need for palliative care and effective pain relief. The primary purpose of this roundtable is to convene leading experts, palliative care service users and advocates with key figures from the UHC movement and global health to highlight the importance of prioritizing this vital part of the continuum of care in UHC reform processes. The roundtable will serve as a scholarly discourse in translating the recommendations of the Lancet Commission into concrete actions, focusing on the political and economic dimensions.

Alexandra Squires McCarthy

Programme Coordinator, Global Health Programme
+44 (0)207 314 2789




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A novel GPER antagonist protects against the formation of estrogen-induced cholesterol gallstones in female mice [Research Articles]

Many clinical studies and epidemiological investigations have clearly demonstrated that women are twice as likely to develop cholesterol gallstones as men, and oral contraceptives and other estrogen therapies dramatically increase that risk. Further, animal studies have revealed that estrogen promotes cholesterol gallstone formation through the estrogen receptor (ER) α, but not ERβ, pathway. More importantly, some genetic and pathophysiological studies have found that G protein-coupled estrogen receptor (GPER) 1 is a new gallstone gene, Lith18, on chromosome 5 in mice and produces additional lithogenic actions, working independently of ERα, to markedly increase cholelithogenesis in female mice. Based on computational modeling of GPER, a novel series of GPER-selective antagonists were designed, synthesized, and subsequently assessed for their therapeutic effects via calcium mobilization, cAMP, and ERα and ERβ fluorescence polarization binding assays. From this series of compounds, one new compound, 2-cyclohexyl-4-isopropyl-N-(4-methoxybenzyl)aniline (CIMBA), exhibits superior antagonism and selectivity exclusively for GPER. Furthermore, CIMBA reduces the formation of 17β-estradiol-induced gallstones in a dose-dependent manner in ovariectomized mice fed a lithogenic diet for 8 weeks. At 32 μg/day/kg CIMBA, no gallstones are found, even in ovariectomized ERα (–/–) mice treated with 6 μg/day 17β-estradiol and fed the lithogenic diet for 8 weeks. In conclusion, CIMBA treatment protects against the formation of estrogen-induced cholesterol gallstones by inhibiting the GPER signaling pathway in female mice. CIMBA may thus be a new agent for effectively treating cholesterol gallstone disease in women.­








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Air gap security beaten by turning PC capacitors into speakers

Researchers have poked another small hole in air gapped security by showing how the electronics inside computer power supply units (PSUs) can be turned into covert data transmission devices.




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Bridging an Impossible Gap? Japan-South Korea Cooperation in a Changing Asia

Research Event

10 February 2020 - 12:00pm to 1:00pm

Chatham House | 10 St James's Square | London | SW1Y 4LE

Event participants

Jennifer Lind, Associate Fellow, US and the Americas Programme and Asia-Pacific Programme, Chatham House
Chair: Tania Branigan, Leader Writer, The Guardian  

China’s growing power and assertiveness in Asia has led the United States and other liberal partners to move toward an Indo-Pacific strategy. While Japan embraces this, South Korea remains noticeably reticent. Moreover, tensions between the two countries have escalated into crisis with the reinvigoration of historical disputes. This roundtable will explore the root causes of current animosity between Seoul and Tokyo, and the potential ways it can be overcome.

This event is co-hosted with Dartmouth College. 

THIS EVENT IS NOW FULL AND REGISTRATION HAS CLOSED.

Lucy Ridout

Programme Administrator, Asia-Pacific Programme
+44 (0) 207 314 2761




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Dis-playing the Game of Thrones: Part 2

Researcher: Andrew Beveridge, Macalester College
Moment Title: Dis-playing the Game of Thrones
Description: Andrew Beveridge uses math to analyze Game of Thrones.




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When Your Passion Works Against You

Tuesday, April 28, 2020 - 13:00




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Irrigation expansion could feed 800 million more people

Water scarcity, a socio-environmental threat to anthropogenic activities and ecosystems alike, affects large regions of the globe. However, it is often the most vulnerable and disadvantaged populations that suffer the severest consequences, highlighting the role of economic and institutional factors in water scarcity. In this way, researchers generally consider not only the physical constraints but socio-economic determinants as well.




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Algae tasked with producing COVID-19 test kits

Researchers at Western and Suncor are teaming up to use algae as a way to produce serological test kits for COVID-19 - a new process that overcomes shortfalls of existing processes while saving money.




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Study helps arboreta, botanical gardens meet genetic diversity conservation goals

In a ground breaking study, an international team of 21 scientists led by Sean Hoban, Ph.D., Conservation Biologist at The Morton Arboretum in Lisle, Illinois, evaluated five genera spanning the plant tree of life (Hibiscus, Magnolia, Pseudophoenix, Quercus and Zamia) to understand how much genetic diversity currently exists in collections in botanical gardens and arboreta worldwide.




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'Sweet City': the Costa Rica suburb that gave citizenship to bees, plants and trees

"Pollinators were the key," says Edgar Mora, reflecting on the decision to recognise every bee, bat, hummingbird and butterfly as a citizen of Curridabat during his 12-year spell as mayor.




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Using Digital Technology to Narrow the Opportunity Gap

Digital technology was not invented to tackle inequality, and there is even a risk that it could widen existing economic and social disparities. But, as the case of China illustrates, new platforms also offer many possible ways to narrow the opportunity gap.




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BongaCash: perfect conversions with your webcam traffic!




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