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  • 1
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2010-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2010 Jun 10;465(7299):823-6. doi: 10.1038/465823a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535212" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Computational Biology ; Computer Simulation ; Cryoelectron Microscopy ; Crystallization ; Crystallography, X-Ray ; Drug Design ; Humans ; Lipid Bilayers/chemistry/metabolism ; Magnetic Resonance Spectroscopy ; Mass Spectrometry ; Membrane Proteins/*chemistry/isolation & purification/*metabolism ; Membranes, Artificial ; *Models, Molecular ; Movement ; Protein Conformation ; Receptors, G-Protein-Coupled/chemistry/isolation & purification/metabolism ; Solubility ; Structure-Activity Relationship
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2011-05-14
    Description: We describe a general computational method for designing proteins that bind a surface patch of interest on a target macromolecule. Favorable interactions between disembodied amino acid residues and the target surface are identified and used to anchor de novo designed interfaces. The method was used to design proteins that bind a conserved surface patch on the stem of the influenza hemagglutinin (HA) from the 1918 H1N1 pandemic virus. After affinity maturation, two of the designed proteins, HB36 and HB80, bind H1 and H5 HAs with low nanomolar affinity. Further, HB80 inhibits the HA fusogenic conformational changes induced at low pH. The crystal structure of HB36 in complex with 1918/H1 HA revealed that the actual binding interface is nearly identical to that in the computational design model. Such designed binding proteins may be useful for both diagnostics and therapeutics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3164876/" 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/PMC3164876/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fleishman, Sarel J -- Whitehead, Timothy A -- Ekiert, Damian C -- Dreyfus, Cyrille -- Corn, Jacob E -- Strauch, Eva-Maria -- Wilson, Ian A -- Baker, David -- AI057141/AI/NIAID NIH HHS/ -- AI058113/AI/NIAID NIH HHS/ -- GM080209/GM/NIGMS NIH HHS/ -- P01 AI058113/AI/NIAID NIH HHS/ -- P01 AI058113-07/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 May 13;332(6031):816-21. doi: 10.1126/science.1202617.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566186" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Sequence ; Binding Sites ; Computational Biology ; *Computer Simulation ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/*metabolism ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Hydrophobic and Hydrophilic Interactions ; *Models, Molecular ; Molecular Sequence Data ; Mutation ; Peptide Library ; Protein Binding ; Protein Conformation ; *Protein Engineering ; Protein Interaction Domains and Motifs ; Protein Structure, Secondary ; Proteins/*chemistry/genetics/*metabolism ; Software
    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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  • 3
    Publication Date: 2010-06-11
    Description: Down's syndrome (DS) is a genetic disorder caused by full or partial trisomy of human chromosome 21 and presents with many clinical phenotypes including a reduced incidence of solid tumours. Recent work with the Ts65Dn model of DS, which has orthologues of about 50% of the genes on chromosome 21 (Hsa21), has indicated that three copies of the ETS2 (ref. 3) or DS candidate region 1 (DSCR1) genes (a previously known suppressor of angiogenesis) is sufficient to inhibit tumour growth. Here we use the Tc1 transchromosomic mouse model of DS to dissect the contribution of extra copies of genes on Hsa21 to tumour angiogenesis. This mouse expresses roughly 81% of Hsa21 genes but not the human DSCR1 region. We transplanted B16F0 and Lewis lung carcinoma tumour cells into Tc1 mice and showed that growth of these tumours was substantially reduced compared with wild-type littermate controls. Furthermore, tumour angiogenesis was significantly repressed in Tc1 mice. In particular, in vitro and in vivo angiogenic responses to vascular endothelial growth factor (VEGF) were inhibited. Examination of the genes on the segment of Hsa21 in Tc1 mice identified putative anti-angiogenic genes (ADAMTS1and ERG) and novel endothelial cell-specific genes, never previously shown to be involved in angiogenesis (JAM-B and PTTG1IP), that, when overexpressed, are responsible for inhibiting angiogenic responses to VEGF. Three copies of these genes within the stromal compartment reduced tumour angiogenesis, explaining the reduced tumour growth in DS. Furthermore, we expect that, in addition to the candidate genes that we show to be involved in the repression of angiogenesis, the Tc1 mouse model of DS will permit the identification of other endothelium-specific anti-angiogenic targets relevant to a broad spectrum of cancer patients.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3479956/" 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/PMC3479956/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reynolds, Louise E -- Watson, Alan R -- Baker, Marianne -- Jones, Tania A -- D'Amico, Gabriela -- Robinson, Stephen D -- Joffre, Carine -- Garrido-Urbani, Sarah -- Rodriguez-Manzaneque, Juan Carlos -- Martino-Echarri, Estefania -- Aurrand-Lions, Michel -- Sheer, Denise -- Dagna-Bricarelli, Franca -- Nizetic, Dean -- McCabe, Christopher J -- Turnell, Andrew S -- Kermorgant, Stephanie -- Imhof, Beat A -- Adams, Ralf -- Fisher, Elizabeth M C -- Tybulewicz, Victor L J -- Hart, Ian R -- Hodivala-Dilke, Kairbaan M -- 080174/Wellcome Trust/United Kingdom -- 12007/Cancer Research UK/United Kingdom -- A12007/Cancer Research UK/United Kingdom -- A3585/Cancer Research UK/United Kingdom -- G0501003/Medical Research Council/United Kingdom -- G0501003(75694)/Medical Research Council/United Kingdom -- G0601056/Medical Research Council/United Kingdom -- G0901609/Medical Research Council/United Kingdom -- MC_U117527252/Medical Research Council/United Kingdom -- U.1175.02.001.00001(60485)/Medical Research Council/United Kingdom -- England -- Nature. 2010 Jun 10;465(7299):813-7. doi: 10.1038/nature09106.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Adhesion and Angiogenesis Laboratory, Barts Institute of Cancer, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK. l.reynolds@qmul.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535211" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/genetics/metabolism ; Animals ; Carcinoma, Lewis Lung/*blood supply/complications/genetics/pathology ; Carrier Proteins/genetics/metabolism ; Cell Adhesion Molecules/antagonists & inhibitors/genetics/metabolism ; Chromosomes, Mammalian/genetics ; *Disease Models, Animal ; Down Syndrome/complications/*genetics/physiopathology ; Female ; Gene Dosage/*genetics ; Humans ; Immunoglobulins/genetics/metabolism ; Male ; Melanoma, Experimental/*blood supply/complications/genetics/pathology ; Mice ; Neoplasm Transplantation ; Neovascularization, Pathologic/*genetics/pathology ; Oncogene Proteins/genetics/metabolism ; Proto-Oncogene Protein c-ets-2/genetics/metabolism ; Transcription Factors ; Trisomy/genetics ; Vascular Endothelial Growth Factor A/antagonists & ; inhibitors/metabolism/pharmacology ; Vascular Endothelial Growth Factor Receptor-2/metabolism
    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: 2011-11-04
    Description: Advanced age is the main risk factor for most chronic diseases and functional deficits in humans, but the fundamental mechanisms that drive ageing remain largely unknown, impeding the development of interventions that might delay or prevent age-related disorders and maximize healthy lifespan. Cellular senescence, which halts the proliferation of damaged or dysfunctional cells, is an important mechanism to constrain the malignant progression of tumour cells. Senescent cells accumulate in various tissues and organs with ageing and have been hypothesized to disrupt tissue structure and function because of the components they secrete. However, whether senescent cells are causally implicated in age-related dysfunction and whether their removal is beneficial has remained unknown. To address these fundamental questions, we made use of a biomarker for senescence, p16(Ink4a), to design a novel transgene, INK-ATTAC, for inducible elimination of p16(Ink4a)-positive senescent cells upon administration of a drug. Here we show that in the BubR1 progeroid mouse background, INK-ATTAC removes p16(Ink4a)-positive senescent cells upon drug treatment. In tissues--such as adipose tissue, skeletal muscle and eye--in which p16(Ink4a) contributes to the acquisition of age-related pathologies, life-long removal of p16(Ink4a)-expressing cells delayed onset of these phenotypes. Furthermore, late-life clearance attenuated progression of already established age-related disorders. These data indicate that cellular senescence is causally implicated in generating age-related phenotypes and that removal of senescent cells can prevent or delay tissue dysfunction and extend healthspan.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3468323/" 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/PMC3468323/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Darren J -- Wijshake, Tobias -- Tchkonia, Tamar -- LeBrasseur, Nathan K -- Childs, Bennett G -- van de Sluis, Bart -- Kirkland, James L -- van Deursen, Jan M -- AG13925/AG/NIA NIH HHS/ -- CA96985/CA/NCI NIH HHS/ -- P30 DK050456/DK/NIDDK NIH HHS/ -- R01 AG013925/AG/NIA NIH HHS/ -- R01 AG013925-14/AG/NIA NIH HHS/ -- R01 CA096985/CA/NCI NIH HHS/ -- R01 CA096985-10/CA/NCI NIH HHS/ -- England -- Nature. 2011 Nov 2;479(7372):232-6. doi: 10.1038/nature10600.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatric and Adolescent Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048312" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/cytology/drug effects/pathology ; Aging/drug effects/*physiology ; Animals ; Bone Marrow Cells/cytology/drug effects ; Cell Aging/drug effects/*physiology ; Cell Count ; Cell Cycle Proteins ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16/*metabolism ; Eye/cytology/drug effects/pathology ; Female ; Gene Expression ; Genotype ; Longevity/drug effects/physiology ; Male ; Mice ; Mice, Transgenic ; Muscle, Skeletal/cytology/drug effects/pathology ; Phenotype ; Progeria/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Tacrolimus/analogs & derivatives/pharmacology ; Time Factors ; Weaning
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2011-04-22
    Description: Genetic methods of manipulating or eradicating disease vector populations have long been discussed as an attractive alternative to existing control measures because of their potential advantages in terms of effectiveness and species specificity. The development of genetically engineered malaria-resistant mosquitoes has shown, as a proof of principle, the possibility of targeting the mosquito's ability to serve as a disease vector. The translation of these achievements into control measures requires an effective technology to spread a genetic modification from laboratory mosquitoes to field populations. We have suggested previously that homing endonuclease genes (HEGs), a class of simple selfish genetic elements, could be exploited for this purpose. Here we demonstrate that a synthetic genetic element, consisting of mosquito regulatory regions and the homing endonuclease gene I-SceI, can substantially increase its transmission to the progeny in transgenic mosquitoes of the human malaria vector Anopheles gambiae. We show that the I-SceI element is able to invade receptive mosquito cage populations rapidly, validating mathematical models for the transmission dynamics of HEGs. Molecular analyses confirm that expression of I-SceI in the male germline induces high rates of site-specific chromosomal cleavage and gene conversion, which results in the gain of the I-SceI gene, and underlies the observed genetic drive. These findings demonstrate a new mechanism by which genetic control measures can be implemented. Our results also show in principle how sequence-specific genetic drive elements like HEGs could be used to take the step from the genetic engineering of individuals to the genetic engineering of populations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3093433/" 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/PMC3093433/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Windbichler, Nikolai -- Menichelli, Miriam -- Papathanos, Philippos Aris -- Thyme, Summer B -- Li, Hui -- Ulge, Umut Y -- Hovde, Blake T -- Baker, David -- Monnat, Raymond J Jr -- Burt, Austin -- Crisanti, Andrea -- CA133831/CA/NCI NIH HHS/ -- RL1 CA133831/CA/NCI NIH HHS/ -- RL1 CA133831-01/CA/NCI NIH HHS/ -- RL1 CA133831-02/CA/NCI NIH HHS/ -- RL1 CA133831-03/CA/NCI NIH HHS/ -- RL1 CA133831-04/CA/NCI NIH HHS/ -- RL1 CA133831-05/CA/NCI NIH HHS/ -- RL1 GM084433/GM/NIGMS NIH HHS/ -- RL1 GM084433-01/GM/NIGMS NIH HHS/ -- RL1 GM084433-02/GM/NIGMS NIH HHS/ -- RL1 GM084433-03/GM/NIGMS NIH HHS/ -- RL1 GM084433-04/GM/NIGMS NIH HHS/ -- RL1 GM084433-05/GM/NIGMS NIH HHS/ -- T32 CA080416/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 May 12;473(7346):212-5. doi: 10.1038/nature09937. Epub 2011 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imperial College London, Department of Life Sciences, South Kensington Campus, London, SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21508956" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Anopheles gambiae/*genetics ; Deoxyribonucleases, Type II Site-Specific/genetics ; Female ; Genes, Reporter/genetics ; *Genetic Engineering ; Genotype ; Insect Vectors/*genetics ; Male ; Molecular Sequence Data ; Mosquito Control/*methods ; Saccharomyces cerevisiae Proteins/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2012-08-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2012 Aug 30;488(7413):568. doi: 10.1038/488568a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22932355" target="_blank"〉PubMed〈/a〉
    Keywords: Circumcision, Male/economics/ethnology/*statistics & numerical data ; Cultural Characteristics ; Humans ; Internationality ; Male ; Physicians ; Sexually Transmitted Diseases/*epidemiology/*prevention & control ; United States/epidemiology
    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: 2014-04-11
    Description: The mechanisms by which mucosal homeostasis is maintained are of central importance to inflammatory bowel disease. Critical to these processes is the intestinal epithelial cell (IEC), which regulates immune responses at the interface between the commensal microbiota and the host. CD1d presents self and microbial lipid antigens to natural killer T (NKT) cells, which are involved in the pathogenesis of colitis in animal models and human inflammatory bowel disease. As CD1d crosslinking on model IECs results in the production of the important regulatory cytokine interleukin (IL)-10 (ref. 9), decreased epithelial CD1d expression--as observed in inflammatory bowel disease--may contribute substantially to intestinal inflammation. Here we show in mice that whereas bone-marrow-derived CD1d signals contribute to NKT-cell-mediated intestinal inflammation, engagement of epithelial CD1d elicits protective effects through the activation of STAT3 and STAT3-dependent transcription of IL-10, heat shock protein 110 (HSP110; also known as HSP105), and CD1d itself. All of these epithelial elements are critically involved in controlling CD1d-mediated intestinal inflammation. This is demonstrated by severe NKT-cell-mediated colitis upon IEC-specific deletion of IL-10, CD1d, and its critical regulator microsomal triglyceride transfer protein (MTP), as well as deletion of HSP110 in the radioresistant compartment. Our studies thus uncover a novel pathway of IEC-dependent regulation of mucosal homeostasis and highlight a critical role of IL-10 in the intestinal epithelium, with broad implications for diseases such as inflammatory bowel disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4132962/" 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/PMC4132962/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olszak, Torsten -- Neves, Joana F -- Dowds, C Marie -- Baker, Kristi -- Glickman, Jonathan -- Davidson, Nicholas O -- Lin, Chyuan-Sheng -- Jobin, Christian -- Brand, Stephan -- Sotlar, Karl -- Wada, Koichiro -- Katayama, Kazufumi -- Nakajima, Atsushi -- Mizuguchi, Hiroyuki -- Kawasaki, Kunito -- Nagata, Kazuhiro -- Muller, Werner -- Snapper, Scott B -- Schreiber, Stefan -- Kaser, Arthur -- Zeissig, Sebastian -- Blumberg, Richard S -- 260961/European Research Council/International -- AI50950/AI/NIAID NIH HHS/ -- DK0034854/DK/NIDDK NIH HHS/ -- DK034854/DK/NIDDK NIH HHS/ -- DK044319/DK/NIDDK NIH HHS/ -- DK051362/DK/NIDDK NIH HHS/ -- DK053056/DK/NIDDK NIH HHS/ -- DK088199/DK/NIDDK NIH HHS/ -- DK56260/DK/NIDDK NIH HHS/ -- HL38180/HL/NHLBI NIH HHS/ -- HL59561/HL/NHLBI NIH HHS/ -- P30 DK034854/DK/NIDDK NIH HHS/ -- P30 DK052574/DK/NIDDK NIH HHS/ -- P30CA013696/CA/NCI NIH HHS/ -- P30DK52574/DK/NIDDK NIH HHS/ -- R01 DK044319/DK/NIDDK NIH HHS/ -- England -- Nature. 2014 May 22;509(7501):497-502. doi: 10.1038/nature13150. Epub 2014 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2]. ; 1] Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany [2]. ; Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. ; GI Pathology, Miraca Life Sciences, Newton, Massachusetts 02464, USA. ; Division of Gastroenterology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York 10032, USA. ; Department of Medicine, Department of Infectious Diseases & Pathology, University of Florida, Gainesville, Florida 32611, USA. ; Department of Medicine II-Grosshadern, Ludwig Maximilians University, Munich 81377, Germany. ; Institute of Pathology, Ludwig Maximilians University, Munich 80337, Germany. ; Department of Pharmacology, Graduate School of Dentistry, Osaka University, Osaka 565-0871, Japan. ; Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0027, Japan. ; Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan. ; Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto 603-8555, Japan. ; Faculty of Life Sciences, University of Manchester, Manchester M13 9PL, UK. ; 1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Children's Hospital Boston, Boston, Massachusetts 02115, USA. ; Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany. ; Division of Gastroenterology, Addenbrooke Hospital, University of Cambridge, Cambridge CB2 0QQ, UK. ; 1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany [3].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24717441" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD1d/*immunology ; Carrier Proteins/metabolism ; Colitis/immunology/pathology ; Disease Models, Animal ; Epithelial Cells/*immunology/metabolism ; Female ; HSP110 Heat-Shock Proteins/genetics/metabolism ; Humans ; Immunity, Mucosal/*immunology ; Inflammation/immunology/pathology ; Inflammatory Bowel Diseases/immunology/pathology ; Interleukin-10/genetics/*immunology ; Intestinal Mucosa/*cytology/*immunology ; Male ; Mice ; Natural Killer T-Cells/immunology/metabolism ; Oxazolone ; STAT3 Transcription Factor/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
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  • 8
    Publication Date: 2014-02-07
    Description: Vaccines prevent infectious disease largely by inducing protective neutralizing antibodies against vulnerable epitopes. Several major pathogens have resisted traditional vaccine development, although vulnerable epitopes targeted by neutralizing antibodies have been identified for several such cases. Hence, new vaccine design methods to induce epitope-specific neutralizing antibodies are needed. Here we show, with a neutralization epitope from respiratory syncytial virus, that computational protein design can generate small, thermally and conformationally stable protein scaffolds that accurately mimic the viral epitope structure and induce potent neutralizing antibodies. These scaffolds represent promising leads for the research and development of a human respiratory syncytial virus vaccine needed to protect infants, young children and the elderly. More generally, the results provide proof of principle for epitope-focused and scaffold-based vaccine design, and encourage the evaluation and further development of these strategies for a variety of other vaccine targets, including antigenically highly variable pathogens such as human immunodeficiency virus and influenza.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4260937/" 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/PMC4260937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Correia, Bruno E -- Bates, John T -- Loomis, Rebecca J -- Baneyx, Gretchen -- Carrico, Chris -- Jardine, Joseph G -- Rupert, Peter -- Correnti, Colin -- Kalyuzhniy, Oleksandr -- Vittal, Vinayak -- Connell, Mary J -- Stevens, Eric -- Schroeter, Alexandria -- Chen, Man -- Macpherson, Skye -- Serra, Andreia M -- Adachi, Yumiko -- Holmes, Margaret A -- Li, Yuxing -- Klevit, Rachel E -- Graham, Barney S -- Wyatt, Richard T -- Baker, David -- Strong, Roland K -- Crowe, James E Jr -- Johnson, Philip R -- Schief, William R -- 1R01AI102766-01A1/AI/NIAID NIH HHS/ -- 1UM1AI100663/AI/NIAID NIH HHS/ -- 2T32GM007270/GM/NIGMS NIH HHS/ -- 5R21AI088554/AI/NIAID NIH HHS/ -- P01 AI094419/AI/NIAID NIH HHS/ -- P01AI094419/AI/NIAID NIH HHS/ -- P30 AI036214/AI/NIAID NIH HHS/ -- P30 AI045008/AI/NIAID NIH HHS/ -- P30AI36214/AI/NIAID NIH HHS/ -- R01 AI102766/AI/NIAID NIH HHS/ -- R21 AI088554/AI/NIAID NIH HHS/ -- T32 CA080416/CA/NCI NIH HHS/ -- T32 GM007270/GM/NIGMS NIH HHS/ -- T32CA080416/CA/NCI NIH HHS/ -- U54 AI 005714/AI/NIAID NIH HHS/ -- U54 AI057141/AI/NIAID NIH HHS/ -- UM1 AI100663/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2014 Mar 13;507(7491):201-6. doi: 10.1038/nature12966. Epub 2014 Feb 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] PhD Program in Computational Biology, Instituto Gulbenkian Ciencia and Instituto de Tecnologia Quimica e Biologica, Universidade Nova de Lisboa, Oeiras 2780-157, Portugal [3] Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California 92037, USA. ; The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA. ; The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania 19104, USA. ; Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA. ; Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA. ; 1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA [3] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [4] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; 1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [3] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA. ; 1] Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA [2]. ; 1] Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA [2] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [3] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; 1] The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA [2] Department of Pathology, Microbiology and Immunology, Vanderbilt Medical Center, Nashville, Tennessee 37232, USA [3] Department of Pediatrics, Vanderbilt Medical Center, Nashville, Tennessee 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24499818" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Antibodies, Monoclonal/analysis/immunology ; Antibodies, Neutralizing/analysis/immunology ; Antibodies, Viral/analysis/immunology ; Antigens, Viral/chemistry/immunology ; Crystallography, X-Ray ; *Drug Design ; Enzyme-Linked Immunosorbent Assay ; Epitopes/*chemistry/*immunology ; Macaca mulatta/immunology ; Male ; Mice ; Mice, Inbred BALB C ; Models, Molecular ; Neutralization Tests ; Protein Conformation ; *Protein Stability ; Respiratory Syncytial Virus Vaccines/*chemistry/*immunology ; Respiratory Syncytial Viruses/chemistry/immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2011-08-23
    Description: Proteins are inherently plastic molecules, whose function often critically depends on excursions between different molecular conformations (conformers). However, a rigorous understanding of the relation between a protein's structure, dynamics and function remains elusive. This is because many of the conformers on its energy landscape are only transiently formed and marginally populated (less than a few per cent of the total number of molecules), so that they cannot be individually characterized by most biophysical tools. Here we study a lysozyme mutant from phage T4 that binds hydrophobic molecules and populates an excited state transiently (about 1 ms) to about 3% at 25 degrees C (ref. 5). We show that such binding occurs only via the ground state, and present the atomic-level model of the 'invisible', excited state obtained using a combined strategy of relaxation-dispersion NMR (ref. 6) and CS-Rosetta model building that rationalizes this observation. The model was tested using structure-based design calculations identifying point mutants predicted to stabilize the excited state relative to the ground state. In this way a pair of mutations were introduced, inverting the relative populations of the ground and excited states and altering function. Our results suggest a mechanism for the evolution of a protein's function by changing the delicate balance between the states on its energy landscape. More generally, they show that our approach can generate and validate models of excited protein states.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3706084/" 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/PMC3706084/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bouvignies, Guillaume -- Vallurupalli, Pramodh -- Hansen, D Flemming -- Correia, Bruno E -- Lange, Oliver -- Bah, Alaji -- Vernon, Robert M -- Dahlquist, Frederick W -- Baker, David -- Kay, Lewis E -- R01 GM092802/GM/NIGMS NIH HHS/ -- Canadian Institutes of Health Research/Canada -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Aug 21;477(7362):111-4. doi: 10.1038/nature10349.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, The University of Toronto, Toronto, Ontario M5S 1A8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21857680" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophage T4/*enzymology/*genetics ; Evolution, Molecular ; Hydrophobic and Hydrophilic Interactions ; Ligands ; *Models, Molecular ; Muramidase/*chemistry/*genetics ; *Mutation ; Protein Binding ; Temperature
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2011-05-03
    Description: Molecular replacement procedures, which search for placements of a starting model within the crystallographic unit cell that best account for the measured diffraction amplitudes, followed by automatic chain tracing methods, have allowed the rapid solution of large numbers of protein crystal structures. Despite extensive work, molecular replacement or the subsequent rebuilding usually fail with more divergent starting models based on remote homologues with less than 30% sequence identity. Here we show that this limitation can be substantially reduced by combining algorithms for protein structure modelling with those developed for crystallographic structure determination. An approach integrating Rosetta structure modelling with Autobuild chain tracing yielded high-resolution structures for 8 of 13 X-ray diffraction data sets that could not be solved in the laboratories of expert crystallographers and that remained unsolved after application of an extensive array of alternative approaches. We estimate that the new method should allow rapid structure determination without experimental phase information for over half the cases where current methods fail, given diffraction data sets of better than 3.2 A resolution, four or fewer copies in the asymmetric unit, and the availability of structures of homologous proteins with 〉20% sequence identity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3365536/" 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/PMC3365536/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DiMaio, Frank -- Terwilliger, Thomas C -- Read, Randy J -- Wlodawer, Alexander -- Oberdorfer, Gustav -- Wagner, Ulrike -- Valkov, Eugene -- Alon, Assaf -- Fass, Deborah -- Axelrod, Herbert L -- Das, Debanu -- Vorobiev, Sergey M -- Iwai, Hideo -- Pokkuluri, P Raj -- Baker, David -- 082961/Wellcome Trust/United Kingdom -- 5R01GM092802/GM/NIGMS NIH HHS/ -- GM074898/GM/NIGMS NIH HHS/ -- P01 GM063210/GM/NIGMS NIH HHS/ -- P41RR002250/RR/NCRR NIH HHS/ -- R01 GM092802/GM/NIGMS NIH HHS/ -- U54 GM074898/GM/NIGMS NIH HHS/ -- U54 GM074958/GM/NIGMS NIH HHS/ -- U54 GM094586/GM/NIGMS NIH HHS/ -- U54GM074958/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- Wellcome Trust/United Kingdom -- England -- Nature. 2011 May 26;473(7348):540-3. doi: 10.1038/nature09964. Epub 2011 May 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Washington, Department of Biochemistry and HHMI, Seattle, Washington 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21532589" target="_blank"〉PubMed〈/a〉
    Keywords: Computational Biology/*methods ; Crystallography, X-Ray ; Databases, Protein ; Electrons ; *Models, Molecular ; Proteins/*chemistry ; Sequence Alignment ; Sequence Homology, Amino Acid ; *Structural Homology, Protein
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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