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  • Animals  (8)
  • Protein Conformation
  • 2010-2014  (9)
  • 1980-1984
  • 1965-1969
  • 2013  (9)
  • 1
    Publication Date: 2013-03-09
    Description: Plant defense compounds occur in floral nectar, but their ecological role is not well understood. We provide evidence that plant compounds pharmacologically alter pollinator behavior by enhancing their memory of reward. Honeybees rewarded with caffeine, which occurs naturally in nectar of Coffea and Citrus species, were three times as likely to remember a learned floral scent as were honeybees rewarded with sucrose alone. Caffeine potentiated responses of mushroom body neurons involved in olfactory learning and memory by acting as an adenosine receptor antagonist. Caffeine concentrations in nectar did not exceed the bees' bitter taste threshold, implying that pollinators impose selection for nectar that is pharmacologically active but not repellent. By using a drug to enhance memories of reward, plants secure pollinator fidelity and improve reproductive success.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4521368/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4521368/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, G A -- Baker, D D -- Palmer, M J -- Stabler, D -- Mustard, J A -- Power, E F -- Borland, A M -- Stevenson, P C -- 094894/Wellcome Trust/United Kingdom -- BB/1000313/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/I000968/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2013 Mar 8;339(6124):1202-4. doi: 10.1126/science.1228806.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Behaviour and Evolution, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE1 7RU, UK. jeri.wright@ncl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23471406" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bees/*drug effects/physiology ; Behavior, Animal/*drug effects ; Caffeine/analysis/*pharmacology ; Citrus/chemistry/*physiology ; Coffea/chemistry/*physiology ; Flowers/chemistry/physiology ; Memory/*drug effects ; Mushroom Bodies/drug effects/physiology ; Plant Nectar/chemistry/*physiology ; Pollination/*drug effects/physiology ; Reward ; Taste/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Nature Publishing Group (NPG)
    Publication Date: 2013-10-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2013 Oct 10;502(7470):156-8. doi: 10.1038/502156a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24108031" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Eye ; Humans ; Mice ; Models, Animal ; Neurons/cytology/physiology ; Neurosciences/*standards/trends ; Visual Cortex/cytology/*physiology ; Visual Perception/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Nature Publishing Group (NPG)
    Publication Date: 2013-01-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2013 Jan 10;493(7431):145. doi: 10.1038/493145a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23302837" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Embryonic Stem Cells/cytology/immunology ; Humans ; Induced Pluripotent Stem Cells/cytology/*immunology ; Mice ; *Patient Safety ; *Stem Cell Transplantation/adverse effects ; Transplantation Immunology/*immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2013-05-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Nicole M -- Der, Channing J -- England -- Nature. 2013 May 30;497(7451):577-8. doi: 10.1038/nature12248. Epub 2013 May 22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23698372" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzimidazoles/*chemistry/*pharmacology ; Cyclic Nucleotide Phosphodiesterases, Type 6/*metabolism ; Humans ; Oncogene Protein p21(ras)/*antagonists & inhibitors/*metabolism ; Signal Transduction/*drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    Nature Publishing Group (NPG)
    Publication Date: 2013-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- MR/K001744/1/Medical Research Council/United Kingdom -- England -- Nature. 2013 Feb 28;494(7438):416-9. doi: 10.1038/494416a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23446398" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Child ; Genetic Association Studies ; Genetic Testing/trends ; Genetics, Medical/*trends ; Genome, Human/genetics ; Genomics/*trends ; Humans ; *Incidental Findings ; *Phenotype ; Protein Interaction Mapping/*trends ; Systems Biology/*trends ; Terminology as Topic ; Toxicity Tests ; Toxicology/*trends
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2013-09-27
    Description: Species richness has dominated our view of global biodiversity patterns for centuries. The dominance of this paradigm is reflected in the focus by ecologists and conservation managers on richness and associated occurrence-based measures for understanding drivers of broad-scale diversity patterns and as a biological basis for management. However, this is changing rapidly, as it is now recognized that not only the number of species but the species present, their phenotypes and the number of individuals of each species are critical in determining the nature and strength of the relationships between species diversity and a range of ecological functions (such as biomass production and nutrient cycling). Integrating these measures should provide a more relevant representation of global biodiversity patterns in terms of ecological functions than that provided by simple species counts. Here we provide comparisons of a traditional global biodiversity distribution measure based on richness with metrics that incorporate species abundances and functional traits. We use data from standardized quantitative surveys of 2,473 marine reef fish species at 1,844 sites, spanning 133 degrees of latitude from all ocean basins, to identify new diversity hotspots in some temperate regions and the tropical eastern Pacific Ocean. These relate to high diversity of functional traits amongst individuals in the community (calculated using Rao's Q), and differ from previously reported patterns in functional diversity and richness for terrestrial animals, which emphasize species-rich tropical regions only. There is a global trend for greater evenness in the number of individuals of each species, across the reef fish species observed at sites ('community evenness'), at higher latitudes. This contributes to the distribution of functional diversity hotspots and contrasts with well-known latitudinal gradients in richness. Our findings suggest that the contribution of species diversity to a range of ecosystem functions varies over large scales, and imply that in tropical regions, which have higher numbers of species, each species contributes proportionally less to community-level ecological processes on average than species in temperate regions. Metrics of ecological function usefully complement metrics of species diversity in conservation management, including when identifying planning priorities and when tracking changes to biodiversity values.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stuart-Smith, Rick D -- Bates, Amanda E -- Lefcheck, Jonathan S -- Duffy, J Emmett -- Baker, Susan C -- Thomson, Russell J -- Stuart-Smith, Jemina F -- Hill, Nicole A -- Kininmonth, Stuart J -- Airoldi, Laura -- Becerro, Mikel A -- Campbell, Stuart J -- Dawson, Terence P -- Navarrete, Sergio A -- Soler, German A -- Strain, Elisabeth M A -- Willis, Trevor J -- Edgar, Graham J -- England -- Nature. 2013 Sep 26;501(7468):539-42. doi: 10.1038/nature12529.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, Tasmania 7001, Australia. rstuarts@utas.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24067714" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Coral Reefs ; Fishes/*classification ; *Geography ; Pacific Ocean ; Population Density ; Species Specificity ; Temperature ; Tropical Climate
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2013-04-13
    Description: Type 1 pili, produced by uropathogenic Escherichia coli, are multisubunit fibres crucial in recognition of and adhesion to host tissues. During pilus biogenesis, subunits are recruited to an outer membrane assembly platform, the FimD usher, which catalyses their polymerization and mediates pilus secretion. The recent determination of the crystal structure of an initiation complex provided insight into the initiation step of pilus biogenesis resulting in pore activation, but very little is known about the elongation steps that follow. Here, to address this question, we determine the structure of an elongation complex in which the tip complex assembly composed of FimC, FimF, FimG and FimH passes through FimD. This structure demonstrates the conformational changes required to prevent backsliding of the nascent pilus through the FimD pore and also reveals unexpected properties of the usher pore. We show that the circular binding interface between the pore lumen and the folded substrate participates in transport by defining a low-energy pathway along which the nascent pilus polymer is guided during secretion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3673227/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3673227/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geibel, Sebastian -- Procko, Erik -- Hultgren, Scott J -- Baker, David -- Waksman, Gabriel -- 85602/Medical Research Council/United Kingdom -- AI029549/AI/NIAID NIH HHS/ -- G0800002/Medical Research Council/United Kingdom -- G0800002(85602)/Medical Research Council/United Kingdom -- P41 GM103533/GM/NIGMS NIH HHS/ -- P41GM103533/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2013 Apr 11;496(7444):243-6. doi: 10.1038/nature12007.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Structural and Molecular Biology, University College London and Birkbeck College, Malet Street, London WC1E 7HX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23579681" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography, X-Ray ; Escherichia coli/*chemistry ; Escherichia coli Proteins/*chemistry/*metabolism ; Fimbriae Proteins/*chemistry/*metabolism ; Fimbriae, Bacterial/chemistry/metabolism ; Models, Molecular ; Protein Conformation ; *Protein Folding ; Protein Stability ; Protein Transport ; Thermodynamics
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2013-07-05
    Description: Most great ape genetic variation remains uncharacterized; however, its study is critical for understanding population history, recombination, selection and susceptibility to disease. Here we sequence to high coverage a total of 79 wild- and captive-born individuals representing all six great ape species and seven subspecies and report 88.8 million single nucleotide polymorphisms. Our analysis provides support for genetically distinct populations within each species, signals of gene flow, and the split of common chimpanzees into two distinct groups: Nigeria-Cameroon/western and central/eastern populations. We find extensive inbreeding in almost all wild populations, with eastern gorillas being the most extreme. Inferred effective population sizes have varied radically over time in different lineages and this appears to have a profound effect on the genetic diversity at, or close to, genes in almost all species. We discover and assign 1,982 loss-of-function variants throughout the human and great ape lineages, determining that the rate of gene loss has not been different in the human branch compared to other internal branches in the great ape phylogeny. This comprehensive catalogue of great ape genome diversity provides a framework for understanding evolution and a resource for more effective management of wild and captive great ape populations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3822165/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3822165/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prado-Martinez, Javier -- Sudmant, Peter H -- Kidd, Jeffrey M -- Li, Heng -- Kelley, Joanna L -- Lorente-Galdos, Belen -- Veeramah, Krishna R -- Woerner, August E -- O'Connor, Timothy D -- Santpere, Gabriel -- Cagan, Alexander -- Theunert, Christoph -- Casals, Ferran -- Laayouni, Hafid -- Munch, Kasper -- Hobolth, Asger -- Halager, Anders E -- Malig, Maika -- Hernandez-Rodriguez, Jessica -- Hernando-Herraez, Irene -- Prufer, Kay -- Pybus, Marc -- Johnstone, Laurel -- Lachmann, Michael -- Alkan, Can -- Twigg, Dorina -- Petit, Natalia -- Baker, Carl -- Hormozdiari, Fereydoun -- Fernandez-Callejo, Marcos -- Dabad, Marc -- Wilson, Michael L -- Stevison, Laurie -- Camprubi, Cristina -- Carvalho, Tiago -- Ruiz-Herrera, Aurora -- Vives, Laura -- Mele, Marta -- Abello, Teresa -- Kondova, Ivanela -- Bontrop, Ronald E -- Pusey, Anne -- Lankester, Felix -- Kiyang, John A -- Bergl, Richard A -- Lonsdorf, Elizabeth -- Myers, Simon -- Ventura, Mario -- Gagneux, Pascal -- Comas, David -- Siegismund, Hans -- Blanc, Julie -- Agueda-Calpena, Lidia -- Gut, Marta -- Fulton, Lucinda -- Tishkoff, Sarah A -- Mullikin, James C -- Wilson, Richard K -- Gut, Ivo G -- Gonder, Mary Katherine -- Ryder, Oliver A -- Hahn, Beatrice H -- Navarro, Arcadi -- Akey, Joshua M -- Bertranpetit, Jaume -- Reich, David -- Mailund, Thomas -- Schierup, Mikkel H -- Hvilsom, Christina -- Andres, Aida M -- Wall, Jeffrey D -- Bustamante, Carlos D -- Hammer, Michael F -- Eichler, Evan E -- Marques-Bonet, Tomas -- 090532/Wellcome Trust/United Kingdom -- 260372/European Research Council/International -- DP1 ES022577/ES/NIEHS NIH HHS/ -- DP1ES022577-04/DP/NCCDPHP CDC HHS/ -- GM100233/GM/NIGMS NIH HHS/ -- HG002385/HG/NHGRI NIH HHS/ -- R01 GM095882/GM/NIGMS NIH HHS/ -- R01 GM100233/GM/NIGMS NIH HHS/ -- R01 HG002385/HG/NHGRI NIH HHS/ -- R01_HG005226/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2013 Jul 25;499(7459):471-5. doi: 10.1038/nature12228. Epub 2013 Jul 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Biologia Evolutiva, CSIC-Universitat Pompeu Fabra, PRBB, Doctor Aiguader 88, Barcelona, Catalonia 08003, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23823723" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Animals, Wild/genetics ; Animals, Zoo/genetics ; Asia, Southeastern ; Evolution, Molecular ; Gene Flow/genetics ; *Genetic Variation ; Genetics, Population ; Genome/genetics ; Gorilla gorilla/classification/genetics ; Hominidae/classification/*genetics ; Humans ; Inbreeding ; Pan paniscus/classification/genetics ; Pan troglodytes/classification/genetics ; Phylogeny ; Polymorphism, Single Nucleotide/genetics ; Population Density
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2013-03-30
    Description: Vaccine development to induce broadly neutralizing antibodies (bNAbs) against HIV-1 is a global health priority. Potent VRC01-class bNAbs against the CD4 binding site of HIV gp120 have been isolated from HIV-1-infected individuals; however, such bNAbs have not been induced by vaccination. Wild-type gp120 proteins lack detectable affinity for predicted germline precursors of VRC01-class bNAbs, making them poor immunogens to prime a VRC01-class response. We employed computation-guided, in vitro screening to engineer a germline-targeting gp120 outer domain immunogen that binds to multiple VRC01-class bNAbs and germline precursors, and elucidated germline binding crystallographically. When multimerized on nanoparticles, this immunogen (eOD-GT6) activates germline and mature VRC01-class B cells. Thus, eOD-GT6 nanoparticles have promise as a vaccine prime. In principle, germline-targeting strategies could be applied to other epitopes and pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3689846/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3689846/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jardine, Joseph -- Julien, Jean-Philippe -- Menis, Sergey -- Ota, Takayuki -- Kalyuzhniy, Oleksandr -- McGuire, Andrew -- Sok, Devin -- Huang, Po-Ssu -- MacPherson, Skye -- Jones, Meaghan -- Nieusma, Travis -- Mathison, John -- Baker, David -- Ward, Andrew B -- Burton, Dennis R -- Stamatatos, Leonidas -- Nemazee, David -- Wilson, Ian A -- Schief, William R -- 5T32AI007606-10/AI/NIAID NIH HHS/ -- AI081625/AI/NIAID NIH HHS/ -- AI33292/AI/NIAID NIH HHS/ -- AI84817/AI/NIAID NIH HHS/ -- P01 AI094419/AI/NIAID NIH HHS/ -- P30 AI027767-24/AI/NIAID NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- R01 AI073148/AI/NIAID NIH HHS/ -- R01 AI081625/AI/NIAID NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- R37 AI033292/AI/NIAID NIH HHS/ -- T32 CA080416/CA/NCI NIH HHS/ -- T32CA080416/CA/NCI NIH HHS/ -- UM1 AI100663/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2013 May 10;340(6133):711-6. doi: 10.1126/science.1234150. Epub 2013 Mar 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23539181" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/chemistry/genetics/*immunology ; Amino Acid Sequence ; Animals ; Antibodies, Neutralizing/immunology ; Antigens, CD4/immunology ; B-Lymphocytes/immunology ; Crystallography, X-Ray ; DNA Mutational Analysis ; Germ Cells/*immunology ; HIV Envelope Protein gp120/chemistry/genetics/*immunology ; HIV Infections/*prevention & control ; HIV-1/*immunology ; Humans ; Macaca ; Mice ; Models, Animal ; Molecular Sequence Data ; Nanoparticles ; Protein Engineering ; Protein Structure, Tertiary ; Receptors, Antigen, B-Cell/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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