est The Western Balkans Before the Berlin Process Summit By f1.media.brightcove.com Published On :: Wed, 13 Jun 2018 00:00:00 +0100 Full Article
est Cyber Security Series: Comparing Best Practice Across Europe By f1.media.brightcove.com Published On :: Tue, 18 Sep 2018 00:00:00 +0100 Full Article
est Trump’s America: Domestic and International Public Opinion By f1.media.brightcove.com Published On :: Fri, 12 Oct 2018 00:00:00 +0100 Full Article
est Can Investment Prevent Conflict? By f1.media.brightcove.com Published On :: Tue, 20 Nov 2018 00:00:00 +0000 Full Article
est Restraining Great Powers: Soft Balancing Strategies Reconsidered By f1.media.brightcove.com Published On :: Tue, 15 Jan 2019 00:00:00 +0000 Full Article
est Is Technology Destroying Democracy? By f1.media.brightcove.com Published On :: Thu, 07 Feb 2019 00:00:00 +0000 Full Article
est Undercurrents: Episode 27 - Financing for Developing Countries, and Investigative Journalism in West Africa By f1.media.brightcove.com Published On :: Thu, 28 Feb 2019 00:00:00 +0000 Full Article
est Undercurrents: Episode 29 - The Future of EU-US Trade, and Why Russia Confronts the West By f1.media.brightcove.com Published On :: Wed, 20 Mar 2019 00:00:00 +0000 Full Article
est Serbia-Kosovo Dialogue: The Future of Peace and Security in the Western Balkans By f1.media.brightcove.com Published On :: Fri, 05 Apr 2019 00:00:00 +0100 Full Article
est The Kremlin Spectrum: Western Approaches Towards Russia By f1.media.brightcove.com Published On :: Tue, 14 May 2019 00:00:00 +0100 Full Article
est The Future of Palestine By f1.media.brightcove.com Published On :: Fri, 17 May 2019 00:00:00 +0100 Full Article
est Power Shift: The Rise of Asia and the Decline of the West? By f1.media.brightcove.com Published On :: Tue, 28 May 2019 00:00:00 +0100 Full Article
est Screening Room: Port of Destiny By f1.media.brightcove.com Published On :: Tue, 29 Oct 2019 00:00:00 +0000 Full Article
est Brexit in a Historical Context: Pursuing a Global Vision at the Expense of Domestic Harmony? By f1.media.brightcove.com Published On :: Tue, 12 Nov 2019 00:00:00 +0000 Full Article
est Kazakhstan: Tested by Transition By f1.media.brightcove.com Published On :: Thu, 28 Nov 2019 00:00:00 +0000 Full Article
est Investigating Violations of International Humanitarian Law By f1.media.brightcove.com Published On :: Tue, 21 Jan 2020 00:00:00 +0000 Full Article
est Undercurrents: Episode 53 - Protecting Workers During COVID-19, and Food in Security in West Africa By brightcove.hs.llnwd.net Published On :: Thu, 14 May 2020 00:00:00 +0100 Full Article
est Undercurrents: Episode 57 - Race in Westminster, and COVID-19 Expertise By brightcove.hs.llnwd.net Published On :: Thu, 11 Jun 2020 00:00:00 +0100 Full Article
est A Deeper Look at the Protests in Belarus By brightcove.hs.llnwd.net Published On :: Fri, 11 Sep 2020 00:00:00 +0100 Full Article
est Regulation of stearoyl-CoA desaturase by polyunsaturated fatty acids and cholesterol By www.jlr.org Published On :: 1999-09-01 James M. NtambiSep 1, 1999; 40:1549-1558Reviews Full Article
est Marked reduction in bile acid synthesis in cholesterol 7{alpha}-hydroxylase-deficient mice does not lead to diminished tissue cholesterol turnover or to hypercholesterolemia By www.jlr.org Published On :: 1998-09-01 Margrit SchwarzSep 1, 1998; 39:1833-1843Articles Full Article
est Procedure for determination of free and total cholesterol in micro- or nanogram amounts suitable for studies with cultured cells By www.jlr.org Published On :: 1978-11-01 W GambleNov 1, 1978; 19:1068-1070Articles Full Article
est Intracellular cholesterol transport By www.jlr.org Published On :: 1997-08-01 CJ FieldingAug 1, 1997; 38:1503-1521Reviews Full Article
est Thematic review series: Brain Lipids. Cholesterol metabolism in the central nervous system during early development and in the mature animal By www.jlr.org Published On :: 2004-08-01 John M. DietschyAug 1, 2004; 45:1375-1397Thematic Reviews Full Article
est Role of liver in the maintenance of cholesterol and low density lipoprotein homeostasis in different animal species, including humans By www.jlr.org Published On :: 1993-10-01 JM DietschyOct 1, 1993; 34:1637-1659Reviews Full Article
est Apolipoprotein-mediated removal of cellular cholesterol and phospholipids By www.jlr.org Published On :: 1996-12-01 JF OramDec 1, 1996; 37:2473-2491Reviews Full Article
est Cell cholesterol efflux: integration of old and new observations provides new insights By www.jlr.org Published On :: 1999-05-01 George H. RothblatMay 1, 1999; 40:781-796Reviews Full Article
est Plasma cholesteryl ester transfer protein By www.jlr.org Published On :: 1993-08-01 AR TallAug 1, 1993; 34:1255-1274Reviews Full Article
est Use of cyclodextrins for manipulating cellular cholesterol content By www.jlr.org Published On :: 1997-11-01 AE ChristianNov 1, 1997; 38:2264-2272Articles Full Article
est Direct transesterification of all classes of lipids in a one-step reaction By www.jlr.org Published On :: 1986-01-01 G LepageJan 1, 1986; 27:114-120Articles Full Article
est Bile salt biotransformations by human intestinal bacteria By www.jlr.org Published On :: 2006-02-01 Jason M. RidlonFeb 1, 2006; 47:241-259Reviews Full Article
est Preparation of fatty acid methyl esters and dimethylacetals from lipids with boron fluoride--methanol By www.jlr.org Published On :: 1964-10-01 William R. MorrisonOct 1, 1964; 5:600-608Articles Full Article
est The plasma lecithin:cholesterol acyltransferase reaction By www.jlr.org Published On :: 1968-03-01 John A. GlomsetMar 1, 1968; 9:155-167Reviews Full Article
est Molecular physiology of reverse cholesterol transport By www.jlr.org Published On :: 1995-02-01 CJ FieldingFeb 1, 1995; 36:211-228Reviews Full Article
est Restriction isotyping of human apolipoprotein E by gene amplification and cleavage with HhaI By www.jlr.org Published On :: 1990-03-01 JE HixsonMar 1, 1990; 31:545-548Articles Full Article
est Chatham House awarded major centenary grant to establish Stavros Niarchos Foundation Wing By www.chathamhouse.org Published On :: Tue, 16 Apr 2019 11:32:22 +0000 Chatham House awarded major centenary grant to establish Stavros Niarchos Foundation Wing News Release sysadmin 16 April 2019 Chatham House has been awarded a transformational £10m grant ahead of its upcoming 2020 centenary. Full Article
est Implications of post-COVID-19 Restructuring of Supply Chains for Global Investment Governance By www.chathamhouse.org Published On :: Tue, 09 Feb 2021 12:54:17 +0000 Implications of post-COVID-19 Restructuring of Supply Chains for Global Investment Governance 14 July 2020 — 9:00AM TO 10:30AM Anonymous (not verified) 9 February 2021 Online As companies rethink and diversify their supply chains in order to enhance resilience, what will this mean for current and future global investment governance? What are the risks of negative effects on inclusivity and transparency? Does this shift create an opportunity to advance good governance of cross-border investment practices? This event is part of the Inclusive Governance Initiative, which is examining how to build more inclusive models and mechanisms of global governance fit for purpose in today’s world. Full Article
est The Future of Investment Dispute Settlement Regimes By www.chathamhouse.org Published On :: Tue, 09 Feb 2021 12:54:17 +0000 The Future of Investment Dispute Settlement Regimes 30 June 2020 — 2:00PM TO 3:30PM Anonymous (not verified) 9 February 2021 Online This event is part of the Inclusive Governance Initiative, which is examining how to build more inclusive models and mechanisms of global governance fit for purpose in today’s world. Is an ‘atomized’ approach to cross-border investment dispute resolution inevitable? Has the multiplicity of mechanisms helped or hindered inclusivity in and transparency in governance? Is there a need for, and scope to, increase the international coordination of dispute resolution mechanisms? If so, what form should it take? What could be the implications for international economic law? Full Article
est The Implication of Greater Use of Investment Screening By www.chathamhouse.org Published On :: Thu, 11 Feb 2021 13:59:17 +0000 The Implication of Greater Use of Investment Screening 26 June 2020 — 9:00AM TO 10:30AM Anonymous (not verified) 11 February 2021 Online What is driving the trend towards greater use of investment screening by nation states and regional economic groupings? How is the COVID-19 crisis affecting this trend? What will the economic implications be? Will this help or hinder inclusivity and transparency in investment governance? Is there a role for international safeguards and/or international coordination of national/regional approaches to investment screening? This event is part of the Inclusive Governance Initiative, which is examining how to build more inclusive models and mechanisms of global governance fit for purpose in today’s world. Full Article
est The regional and international implications of restrictions to online freedom of expression in Asia By www.chathamhouse.org Published On :: Fri, 12 Mar 2021 12:25:49 +0000 The regional and international implications of restrictions to online freedom of expression in Asia 25 March 2021 — 12:30PM TO 1:30PM Anonymous (not verified) 12 March 2021 Online Panellists discuss the latest developments affecting online freedom of expression in the Asia region. Please note this is an online event. Please register using the link below to finalize your registration. In recent years, state-led clampdowns on online freedom of expression have become widespread in several countries across Asia, further intensified by the COVID-19 crisis. The reasons for this are complex and diverse – drawing upon history, culture and politics, in addition to external influences. Across the region, governments have been accused of silencing online criticism and failing to uphold rights to free speech. Individuals have been arrested, fined or attacked for the alleged spread of ‘fake news’, raising concern among human rights organizations. In some countries, this has culminated in the imposition of new social media rules, which could require social media companies to censor posts and share decrypted messages. In China, the government’s restrictive online regime has relied on a combination of legal, technical and manipulation tactics to manage control of the internet, and now includes attempts at censorship beyond its borders. Panellists will discuss the latest regional developments affecting online freedom of expression in the Asia region, and will consider the broader regional and international implications for technology governance. This webinar launches the publication Restrictions on online freedom of expression in China: The domestic, regional and international implications of China’s policies and practices. Full Article
est How can the investor community address the ‘S’ in ESG? – the role of social purpose values By www.chathamhouse.org Published On :: Mon, 18 Oct 2021 19:34:24 +0000 How can the investor community address the ‘S’ in ESG? – the role of social purpose values 16 November 2021 — 1:30PM TO 2:30PM Anonymous (not verified) 18 October 2021 Online This webinar highlights the crucial relationship between an open civic space and a profitable business environment. 2020 was a tipping point for investors to think and act more responsibly, galvanized by catalysts like the killing of George Floyd and the pandemic. There is increasing investor support for social and environmental causes. Younger investors are placing increasing emphasis on values and social issues in their investment decisions. The ‘S’ in the Environment Social and Governance (ESG) agenda is clearly gaining traction, but how far does it extend to civil and political liberties i.e. the right of citizens, NGOs and journalists to speak freely, assemble and associate which are increasingly shrinking around the world? While there is increasing focus on human rights issues such as modern slavery and supply chains, civil society space issues often fall between the cracks when investors consider ESG. This webinar also explores opportunities and challenges that arise for the investor community in terms of factoring civic space issues into their political risk and ESG analysis. To what extent are civic space issues being factored into ESG social purpose values, especially by younger investors? What is the best methodology for assessing these issues in order to ensure a common and coherent set of global standards in this area? And how can investors mitigate the risks of their activities to civic space in practice? Full Article
est Re-imagining trade for domestic and foreign policy By www.chathamhouse.org Published On :: Tue, 07 Dec 2021 11:05:03 +0000 Re-imagining trade for domestic and foreign policy Expert comment NCapeling 7 December 2021 Exploring future trade policy through issues such as the green transition, labour standards, human rights, the role of the WTO, and non-trade policy objectives. Balancing trade and non-trade policy objectives Marianne Schneider-Petsinger The supply chain disruptions stemming from the COVID-19 pandemic highlight trade cannot be taken for granted, and economic interdependencies have both benefits and costs. As international commerce rebounds and trade policy is increasingly seen through the prism of enhancing resilience, the moment is ripe to redefine and reimagine trade. The goal of trade policy has never been to increase trade for trade’s sake, so a new narrative and framework for global trade requires striking a careful balance between pursuing trade and non-trade policy objectives. Protecting the environment, strengthening labour standards, and upholding human rights have long been goals for which trade policy is used as a lever, and the interaction of trade and national security interests as well as the links between trade and competition policy are not new issues either. All these non-trade policy aspects have come to the forefront as the geopolitical context has shifted and the transition to green and digital economies has gathered force – and, at times, these different non-trade policy goals clash. The US and European Union (EU) are promoting solar energy to fight climate change but supply chains for solar panels are heavily reliant on forced labour from Xinjiang, and hence it is not yet certain whether environmental or human rights concerns will prevail. However, it is clear trade policy tools can be part of a comprehensive solution which manages inherent tensions while still advancing both objectives. A new narrative and framework for global trade requires striking a careful balance between pursuing trade and non-trade policy objectives Trade policy is also not just a foreign policy instrument but links closely to domestic policy – the populist backlash against globalization in much of the developed world, especially the US and Europe, was in part driven by anti-trade sentiment. While American attitudes towards trade improved after the 2016 election of Donald Trump, positive views towards trade dropped sharply in 2021. The Biden administration’s worker-centred trade policy aims to address distributional effects of international economic integration which is a long-standing challenge. Thus, tackling non-trade policy issues without losing sight of this unresolved core issue requires careful calibration. Trade policy is being pulled in many different directions at the same time as the core institution governing global trade – the World Trade Organization (WTO) – is in crisis, and it is uncertain how much of the non-trade policy agenda the WTO can handle. If the linkage to non-trade policy becomes too strong, this could be the straw that breaks the WTO’s back, but if it is too weak, the WTO risks becoming irrelevant in efforts to tackle key global challenges. But if its 164 members can generate trade-oriented solutions to non-trade issues, they can revive the organization and mobilize domestic support for global trade at the same time. This balancing act in managing the tensions between trade and non-trade policy objectives lies at the centre of future-proofing trade policy and global trade governance. Developing countries must be part of green trade revolution Carolyn Deere Birkbeck The biggest challenge in taking environmental efforts forward within the multilateral context is to successfully combine environmental ambition with an approach which engages developing countries as partners, reflects their environment-related trade priorities, and addresses their sustainable development interests. Meaningful, inclusive dialogue and action at the WTO also requires deeper efforts to build policy coherence among environment, development, and trade policymaking at home The importance of engaging developing countries must not be underestimated because it is vital a global green economy does not leave the poorest behind, or becomes two-tier where green trade happens only between certain countries and the essential task of incentivizing and supporting sustainable production and consumption patterns in all countries is neglected. The new member-led initiatives at the WTO do signal that, while the rulemaking and negotiating functions remain central to the global trade body, governments recognize the need for enhanced, transparent, and inclusive policy dialogue as well as problem-solving on sectoral issues and specific trade-related challenges. Given the well-documented challenges of achieving multilateral consensus at the WTO, governments are exploring new ways to work within multilateral frameworks and to redefine what progress and successful outcomes should look like. Therefore, there is a need for best practices, voluntary action, pledges, and guidelines to both sustain the relevance of the multilateral trading system and support policy action at the national level for trade which underpins environmental and wider sustainable goals. Making progress on an environmental agenda which reflects sustainable development concerns requires stronger leadership, engagement, and advocacy from business, civil society, and research communities in both developing and developed countries, as well as economies in transition. Meaningful, inclusive dialogue and action at the WTO also requires deeper efforts to build policy coherence among environment, development, and trade policymaking at home, with environmental ministries having a key role to play in bringing expertise to bear and ensuring strong regulatory environments and institutions for the implementation of national, regional, and international environmental commitments. But at the domestic level, many countries still have to overcome complex politics and diverse interests as they work to transform their economies toward greater sustainability and tackle the costs of transition. Social preparation holds the key to trade transitions Bernice Lee Trade being often depicted as the mother of all ills should not come as a surprise, as politicians are only too happy to put the blame on trade when all sorts of exogenous shocks, such as technological change, could actually be the trigger which fires the bullet into local industries or jobs. Trade brings positive benefits only if a society is ready for trade, which often means having the cushion for social protection such as healthcare, unemployment benefits, and opportunities for training and reskilling Admittedly trade does have a way of breaking the seams in the social fabric but the fact politicians often ignore negative impacts of trade means its benefits can be likened to Schrodinger’s cat, both real and illusive. But trade being mainly depicted as a ‘zero-sum’ pursuit and trade deals as the result of swashbuckling duels belie the reality that the real business of trade is often boring, bureaucratic, but necessary. This is particularly true when trade provides access to a much larger variety of necessary products, such as medicine, food, and minerals, which can be expensive to make domestically. Selling products and services abroad also brings in the hard currency needed to buy these goods or to spend on trips abroad. This does not take away the fact trade is extremely disruptive but, as a result of all the theorizing and understandable rants about trade, large swathes of the international community have effectively foregone it as a force for good or as an instrument which – while not the answer to all problems – can help smooth the path to well-being through efficiency gains and income growth, as well as putting to work the theory of comparative advantage as promised by the textbooks. Alas, what the textbooks do not clearly spell out – until recently – is that trade brings positive benefits only if a society is ready for trade, which often means having the cushion for social protection such as healthcare, unemployment benefits, and opportunities for training and reskilling. The ‘China shock’ literature vividly depicts how workers rarely seamlessly move from one job or sector to another and so, without adequate social protection, trade not only magnifies existing fractures, it also exacerbates inequality. As the aftershock lingers for decades, the lesson learned is the importance of social readiness for trade, especially the role played by governments in providing support for workers as part of the adjustment to trade and globalization. Authors of this China shock literature recently suggested the next shock will be the transition from fossil fuel production, but the good news is this so-called ‘just transition’ challenge is one which proponents of green energy are well aware of. But ultimately the China shock could be the dry run for the advent of machine intelligence, meaning better preparation is needed with solid social policies, investment in institutional readiness, and social preparedness to ensure the machines only take on monotonous and unsafe work – not our livelihoods and communities. Trading partners must move to creating human rights impact Dr Jennifer Zerk The question of whether, and how, trade policy should be used as a way of addressing human rights concerns remains controversial and attempts to link the two still attract accusations of ‘protectionism’ and ‘neo-colonialism’. Momentum appears to be behind those arguing for greater alignment between trade policy and human rights objectives – a trend which is most noticeable in the increasing willingness of trade partners to reference human rights standards in their trade agreements and in the growth of complementary activities such as human rights impact assessment and monitoring. Evidence that these are having an impact ‘on the ground’ remains elusive. Nevertheless, efforts to enhance scrutiny of trade agreements from a human rights perspective, and to signal the importance of respect for human rights to a trading relationship, can still have value. Even if causal relationships between trading arrangements and human rights impacts are difficult to establish conclusively, human rights impact assessment and subsequent monitoring activities provide valuable opportunities for stakeholders to weigh in on aspects of trade policy which are of concern. Such processes not only help governments to realize rights of public participation, they also contribute to good governance by making it more likely that potential human rights problems will be recognized and addressed. Turning to the agreements themselves, various ideas have been put forward on how to make these more responsive to human rights concerns. Options mooted by EU institutions in recent years include an enhanced monitoring and enforcement role for consultative bodies established under specialized ‘trade and sustainable development’ chapters, and better mainstreaming of human rights commitments in sector-specific chapters. However, given the political and resource-related difficulties in developing credible monitoring systems for human rights-related issues, and the unlikelihood of actual enforcement, many view this as little more than window-dressing. For governments wanting to see real impact, ‘supply chain due diligence’ regimes pioneered by the EU in relation to timber and conflict minerals present a promising regulatory model. The question of whether, and how, trade policy should be used as a way of addressing human rights concerns remains controversial These regimes seek to curb trade in products derived from, or which aggravate, human rights abuses as well as aiming to promote more responsible sourcing of products by EU importers. They create powerful incentives within partner countries to crack down on harmful practices by producers, which are bolstered further by regulations that demand more proactive human rights risk management by EU operators throughout their supply chains. Capacity-building and aid packages have been deployed to help speed up the necessary reforms. New regulatory measures imposing mandatory human rights due diligence obligations on companies operating in a much broader range of sectors are now under consideration by the European Commission. While the role of trade-related measures in the enforcement of this new regime is still unclear, trading partners should be sure to preserve the regulatory space for sector-level and company-level initiatives such as these in future agreements. Understanding the impact of NTPOs on investment Professor Michael Gasiorek Increasingly, trade policy is not just all about achieving trade-related outcomes as international trade, by definition, involves interaction with partner countries and therefore trade policy with regard to those partner countries can be used as a means to achieve ‘non-trade policy objectives’ (NTPOs). In turn this means trade policy is also no longer just about the domestic economy but also about policies and economies in other countries – such as poorer countries achieving sustainable development goals (SDGs), concerns about practices in other countries in areas such as governance or corruption, or a desire to address broader challenges such as climate change. But the inclusion of NTPOs in trade policy arrangements between countries also creates possible impacts on investment flows between countries. Stronger NTPO commitments could have a negative impact both on foreign direct investment (FDI) and domestic investment because the commitments increase costs for the companies involved which makes the investment less attractive. However, NTPOs bringing progress on governance, or strengthening institutions, or giving more clarity on environmental regulations could signal a more stable and safe business environment, with production standards which create increased market access for exports – all of which may lead to increased incentives to invest. A third possibility is that NTPOs do not have much effect either way because, although trade agreement increasingly include provisions on economic and social rights, or civil and political rights, or environmental protection – these are typically ‘best endeavour’ clauses which are frequently not binding or subject to dispute settlement, making them less likely to be implemented. Full Article
est Amyloid precursor protein is a restriction factor that protects against Zika virus infection in mammalian brains [Gene Regulation] By www.jbc.org Published On :: 2020-12-11T00:06:20-08:00 Zika virus (ZIKV) is a neurotropic flavivirus that causes several diseases including birth defects such as microcephaly. Intrinsic immunity is known to be a frontline defense against viruses through host anti-viral restriction factors. Limited knowledge is available on intrinsic immunity against ZIKV in brains. Amyloid precursor protein (APP) is predominantly expressed in brains and implicated in the pathogenesis of Alzheimer's diseases. We have found that ZIKV interacts with APP, and viral infection increases APP expression via enhancing protein stability. Moreover, we identified the viral peptide, HGSQHSGMIVNDTGHETDENRAKVEITPNSPRAEATLGGFGSLGL, which is capable of en-hancing APP expression. We observed that aging brain tissues with APP had protective effects on ZIKV infection by reducing the availability of the viruses. Also, knockdown of APP expression or blocking ZIKV-APP interactions enhanced ZIKV replication in human neural progenitor/stem cells. Finally, intracranial infection of ZIKV in APP-null neonatal mice resulted in higher mortality and viral yields. Taken together, these findings suggest that APP is a restriction factor that protects against ZIKV by serving as a decoy receptor, and plays a protective role in ZIKV-mediated brain injuries. Full Article
est There are valid questions about how China handled coronavirus but advocating hostility won't help By www.chathamhouse.org Published On :: Wed, 06 May 2020 17:36:29 +0000 Source The Independent URL https://www.independent.co.uk/independentpremium/voices/coronavirus-china-cases-... Release date 10 April 2020 Expert Dr Tim Summers In the news type Op-ed Hide date on homepage Full Article
est Tackling tropical deforestation: The need for EU leadership By www.chathamhouse.org Published On :: Wed, 27 May 2020 12:03:37 +0000 Source EURACTIV URL https://www.euractiv.com/section/biomass/opinion/tackling-tropical-deforestation... Release date 12 May 2020 Expert Alison Hoare In the news type Op-ed Hide date on homepage Full Article
est Novel fluorescent GPCR biosensor detects retinal equilibrium binding to opsin and active G protein and arrestin signaling conformations [Molecular Biophysics] By www.jbc.org Published On :: 2020-12-18T00:06:18-08:00 Rhodopsin is a canonical class A photosensitive G protein–coupled receptor (GPCR), yet relatively few pharmaceutical agents targeting this visual receptor have been identified, in part due to the unique characteristics of its light-sensitive, covalently bound retinal ligands. Rhodopsin becomes activated when light isomerizes 11-cis-retinal into an agonist, all-trans-retinal (ATR), which enables the receptor to activate its G protein. We have previously demonstrated that, despite being covalently bound, ATR can display properties of equilibrium binding, yet how this is accomplished is unknown. Here, we describe a new approach for both identifying compounds that can activate and attenuate rhodopsin and testing the hypothesis that opsin binds retinal in equilibrium. Our method uses opsin-based fluorescent sensors, which directly report the formation of active receptor conformations by detecting the binding of G protein or arrestin fragments that have been fused onto the receptor's C terminus. We show that these biosensors can be used to monitor equilibrium binding of the agonist, ATR, as well as the noncovalent binding of β-ionone, an antagonist for G protein activation. Finally, we use these novel biosensors to observe ATR release from an activated, unlabeled receptor and its subsequent transfer to the sensor in real time. Taken together, these data support the retinal equilibrium binding hypothesis. The approach we describe should prove directly translatable to other GPCRs, providing a new tool for ligand discovery and mutant characterization. Full Article
est Shared requirements for key residues in the antibiotic resistance enzymes ErmC and ErmE suggest a common mode of RNA recognition [Enzymology] By www.jbc.org Published On :: 2020-12-18T00:06:18-08:00 Erythromycin-resistance methyltransferases are SAM dependent Rossmann fold methyltransferases that convert A2058 of 23S rRNA to m6 2A2058. This modification sterically blocks binding of several classes of antibiotics to 23S rRNA, resulting in a multidrug-resistant phenotype in bacteria expressing the enzyme. ErmC is an erythromycin resistance methyltransferase found in many Gram-positive pathogens, whereas ErmE is found in the soil bacterium that biosynthesizes erythromycin. Whether ErmC and ErmE, which possess only 24% sequence identity, use similar structural elements for rRNA substrate recognition and positioning is not known. To investigate this question, we used structural data from related proteins to guide site-saturation mutagenesis of key residues and characterized selected variants by antibiotic susceptibility testing, single turnover kinetics, and RNA affinity–binding assays. We demonstrate that residues in α4, α5, and the α5-α6 linker are essential for methyltransferase function, including an aromatic residue on α4 that likely forms stacking interactions with the substrate adenosine and basic residues in α5 and the α5-α6 linker that likely mediate conformational rearrangements in the protein and cognate rRNA upon interaction. The functional studies led us to a new structural model for the ErmC or ErmE-rRNA complex. Full Article
est Best multiband filter problem By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT A. B. Bogatyrev Trans. Moscow Math. Soc. 83 (), 217-225. Abstract, references and article information Full Article
est Plant-based 'Meat' and Cultured Meat: Revolutionizing the Livestock Sector By www.chathamhouse.org Published On :: Thu, 14 Mar 2019 13:36:54 +0000 Plant-based 'Meat' and Cultured Meat: Revolutionizing the Livestock Sector 10 April 2019 — 4:00PM TO 5:30PM Anonymous (not verified) 14 March 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE Consensus is building across the scientific, environmental and public health communities that a radical shift away from excessive meat-eating patterns is urgently needed to tackle the unsustainability of the livestock sector. Recognizing the scale of the challenge ahead, public policymakers, civil society and innovators have increasingly sought to prompt shifts in consumer food choices – away from the most resource-intensive meat products and towards more sustainable alternatives.Meat analogues – plant-based ‘meat’ and cultured meat also known as ‘lab-grown’ meat – mark a departure from traditional meat alternatives. Both are intended to be indistinguishable from – and in the case of cultured meat biologically equivalent to – animal-derived meat and are marketed principally at meat-eaters. Innovation and investment in meat analogues have increased significantly, but the direction and pace of growth in the meat analogue industry will depend upon a multitude of factors, including public acceptance, civil society support and incumbent industry responses.This event will explore the challenges of scaling up production and generating demand for meat alternatives. It will also look at the ways policymakers in the UK and EU can impact the direction of the industry while examining what factors will influence consumer acceptance of plant-based ‘meat’ and cultured meat as substitutes for animal-derived meat. Full Article
est Mining, Minerals and Metals Expert Roundtable: Forest-Smart Mining Report Launch By www.chathamhouse.org Published On :: Fri, 12 Apr 2019 13:30:02 +0000 Mining, Minerals and Metals Expert Roundtable: Forest-Smart Mining Report Launch 10 May 2019 — 5:30PM TO 6:30PM Anonymous (not verified) 12 April 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE The impact of mining on forests has received relatively limited attention at the global level despite its implications for climate change, biodiversity and the wider Sustainable Development Goals. Three new studies – commissioned by the World Bank and the Program on Forests (PROFOR) and delivered by a consortium including Fauna and Flora International, Levin Sources, Fairfields Sustainability Consulting and Swedish Geological AB – shed new light on the impact of mining on deforestation, current practices to protect forests in mining areas and how ‘forest-smart’ mining policies, practices and partnerships can be scaled-up and accelerated. The report authors will introduce the key findings of the reports, as they relate to large-scale mining (LSM), artisanal and small-scale mining (ASM) and the implementation of biodiversity offset schemes, with a focus on landscape-level efforts that avoid or minimize adverse impacts on forests – and ideally result in a net gain for forest outcomes. The speakers will then set out policy and practical recommendations designed to support ‘forest-smart’ mining, conserve biodiversity and ensure a ‘well below 2c’ future, before opening up the discussion to participants. Full Article