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  • Articles  (108)
  • Amino Acid Sequence  (108)
  • 2010-2014  (46)
  • 1990-1994  (62)
  • 2011  (46)
  • 1991  (62)
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  • Articles  (108)
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  • 2010-2014  (46)
  • 1990-1994  (62)
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  • 1
    Publication Date: 2011-11-25
    Description: Variable regions 1 and 2 (V1/V2) of human immunodeficiency virus-1 (HIV-1) gp120 envelope glycoprotein are critical for viral evasion of antibody neutralization, and are themselves protected by extraordinary sequence diversity and N-linked glycosylation. Human antibodies such as PG9 nonetheless engage V1/V2 and neutralize 80% of HIV-1 isolates. Here we report the structure of V1/V2 in complex with PG9. V1/V2 forms a four-stranded beta-sheet domain, in which sequence diversity and glycosylation are largely segregated to strand-connecting loops. PG9 recognition involves electrostatic, sequence-independent and glycan interactions: the latter account for over half the interactive surface but are of sufficiently weak affinity to avoid autoreactivity. The structures of V1/V2-directed antibodies CH04 and PGT145 indicate that they share a common mode of glycan penetration by extended anionic loops. In addition to structurally defining V1/V2, the results thus identify a paradigm of antibody recognition for highly glycosylated antigens, which-with PG9-involves a site of vulnerability comprising just two glycans and a strand.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3406929/" 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/PMC3406929/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McLellan, Jason S -- Pancera, Marie -- Carrico, Chris -- Gorman, Jason -- Julien, Jean-Philippe -- Khayat, Reza -- Louder, Robert -- Pejchal, Robert -- Sastry, Mallika -- Dai, Kaifan -- O'Dell, Sijy -- Patel, Nikita -- Shahzad-ul-Hussan, Syed -- Yang, Yongping -- Zhang, Baoshan -- Zhou, Tongqing -- Zhu, Jiang -- Boyington, Jeffrey C -- Chuang, Gwo-Yu -- Diwanji, Devan -- Georgiev, Ivelin -- Kwon, Young Do -- Lee, Doyung -- Louder, Mark K -- Moquin, Stephanie -- Schmidt, Stephen D -- Yang, Zhi-Yong -- Bonsignori, Mattia -- Crump, John A -- Kapiga, Saidi H -- Sam, Noel E -- Haynes, Barton F -- Burton, Dennis R -- Koff, Wayne C -- Walker, Laura M -- Phogat, Sanjay -- Wyatt, Richard -- Orwenyo, Jared -- Wang, Lai-Xi -- Arthos, James -- Bewley, Carole A -- Mascola, John R -- Nabel, Gary J -- Schief, William R -- Ward, Andrew B -- Wilson, Ian A -- Kwong, Peter D -- R01 AI033292/AI/NIAID NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- RR017573/RR/NCRR NIH HHS/ -- Canadian Institutes of Health Research/Canada -- Intramural NIH HHS/ -- England -- Nature. 2011 Nov 23;480(7377):336-43. doi: 10.1038/nature10696.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22113616" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/chemistry/immunology ; Amino Acid Motifs ; Amino Acid Sequence ; Antibodies, Neutralizing/chemistry/*immunology ; Antibody Affinity/immunology ; Antibody Specificity/*immunology ; Antigen-Antibody Complex/chemistry/immunology ; Binding Sites, Antibody/immunology ; Conserved Sequence ; Crystallography, X-Ray ; Epitopes/chemistry/immunology ; Glycopeptides/chemistry/immunology ; Glycosylation ; HIV Antibodies/chemistry/*immunology ; HIV Envelope Protein gp120/*chemistry/*immunology ; HIV-1/*chemistry/*immunology ; Hydrogen Bonding ; Immune Evasion ; Models, Molecular ; Molecular Sequence Data ; Polysaccharides/chemistry/immunology ; Protein Structure, Quaternary ; Protein Structure, Tertiary
    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: 2011-02-05
    Description: We describe the draft genome of the microcrustacean Daphnia pulex, which is only 200 megabases and contains at least 30,907 genes. The high gene count is a consequence of an elevated rate of gene duplication resulting in tandem gene clusters. More than a third of Daphnia's genes have no detectable homologs in any other available proteome, and the most amplified gene families are specific to the Daphnia lineage. The coexpansion of gene families interacting within metabolic pathways suggests that the maintenance of duplicated genes is not random, and the analysis of gene expression under different environmental conditions reveals that numerous paralogs acquire divergent expression patterns soon after duplication. Daphnia-specific genes, including many additional loci within sequenced regions that are otherwise devoid of annotations, are the most responsive genes to ecological challenges.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3529199/" 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/PMC3529199/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colbourne, John K -- Pfrender, Michael E -- Gilbert, Donald -- Thomas, W Kelley -- Tucker, Abraham -- Oakley, Todd H -- Tokishita, Shinichi -- Aerts, Andrea -- Arnold, Georg J -- Basu, Malay Kumar -- Bauer, Darren J -- Caceres, Carla E -- Carmel, Liran -- Casola, Claudio -- Choi, Jeong-Hyeon -- Detter, John C -- Dong, Qunfeng -- Dusheyko, Serge -- Eads, Brian D -- Frohlich, Thomas -- Geiler-Samerotte, Kerry A -- Gerlach, Daniel -- Hatcher, Phil -- Jogdeo, Sanjuro -- Krijgsveld, Jeroen -- Kriventseva, Evgenia V -- Kultz, Dietmar -- Laforsch, Christian -- Lindquist, Erika -- Lopez, Jacqueline -- Manak, J Robert -- Muller, Jean -- Pangilinan, Jasmyn -- Patwardhan, Rupali P -- Pitluck, Samuel -- Pritham, Ellen J -- Rechtsteiner, Andreas -- Rho, Mina -- Rogozin, Igor B -- Sakarya, Onur -- Salamov, Asaf -- Schaack, Sarah -- Shapiro, Harris -- Shiga, Yasuhiro -- Skalitzky, Courtney -- Smith, Zachary -- Souvorov, Alexander -- Sung, Way -- Tang, Zuojian -- Tsuchiya, Dai -- Tu, Hank -- Vos, Harmjan -- Wang, Mei -- Wolf, Yuri I -- Yamagata, Hideo -- Yamada, Takuji -- Ye, Yuzhen -- Shaw, Joseph R -- Andrews, Justen -- Crease, Teresa J -- Tang, Haixu -- Lucas, Susan M -- Robertson, Hugh M -- Bork, Peer -- Koonin, Eugene V -- Zdobnov, Evgeny M -- Grigoriev, Igor V -- Lynch, Michael -- Boore, Jeffrey L -- P42 ES004699/ES/NIEHS NIH HHS/ -- P42 ES004699-25/ES/NIEHS NIH HHS/ -- P42ES004699/ES/NIEHS NIH HHS/ -- R01 ES019324/ES/NIEHS NIH HHS/ -- R24 GM078274/GM/NIGMS NIH HHS/ -- R24 GM078274-01A1/GM/NIGMS NIH HHS/ -- R24GM07827401/GM/NIGMS NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):555-61. doi: 10.1126/science.1197761.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genomics and Bioinformatics, Indiana University, 915 East Third Street, Bloomington, IN 47405, USA. jcolbour@indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292972" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Daphnia/*genetics/physiology ; *Ecosystem ; Environment ; Evolution, Molecular ; Gene Conversion ; Gene Duplication ; Gene Expression ; Gene Expression Profiling ; Gene Expression Regulation ; Genes ; Genes, Duplicate ; *Genome ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Annotation ; Molecular Sequence Data ; Multigene Family ; Phylogeny ; Sequence Analysis, DNA
    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: 2011-07-19
    Description: Passive transfer of broadly neutralizing HIV antibodies can prevent infection, which suggests that vaccines that elicit such antibodies would be protective. Thus far, however, few broadly neutralizing HIV antibodies that occur naturally have been characterized. To determine whether these antibodies are part of a larger group of related molecules, we cloned 576 new HIV antibodies from four unrelated individuals. All four individuals produced expanded clones of potent broadly neutralizing CD4-binding-site antibodies that mimic binding to CD4. Despite extensive hypermutation, the new antibodies shared a consensus sequence of 68 immunoglobulin H (IgH) chain amino acids and arise independently from two related IgH genes. Comparison of the crystal structure of one of the antibodies to the broadly neutralizing antibody VRC01 revealed conservation of the contacts to the HIV spike.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3351836/" 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/PMC3351836/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scheid, Johannes F -- Mouquet, Hugo -- Ueberheide, Beatrix -- Diskin, Ron -- Klein, Florian -- Oliveira, Thiago Y K -- Pietzsch, John -- Fenyo, David -- Abadir, Alexander -- Velinzon, Klara -- Hurley, Arlene -- Myung, Sunnie -- Boulad, Farid -- Poignard, Pascal -- Burton, Dennis R -- Pereyra, Florencia -- Ho, David D -- Walker, Bruce D -- Seaman, Michael S -- Bjorkman, Pamela J -- Chait, Brian T -- Nussenzweig, Michel C -- P01 AI081677/AI/NIAID NIH HHS/ -- P30 AI060354/AI/NIAID NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- RR00862/RR/NCRR NIH HHS/ -- RR022220/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1633-7. doi: 10.1126/science.1207227. Epub 2011 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764753" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/*immunology/metabolism ; Antibody Affinity ; Antibody Specificity ; Antigens, CD4/immunology/*metabolism ; Binding Sites ; Binding Sites, Antibody ; Cloning, Molecular ; Consensus Sequence ; Crystallography, X-Ray ; Genes, Immunoglobulin Heavy Chain ; HIV Antibodies/*chemistry/*immunology/metabolism ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV Infections/immunology ; Humans ; Immunoglobulin Fab Fragments/chemistry ; Immunoglobulin Heavy Chains/chemistry ; Immunoglobulin Light Chains/chemistry ; Molecular Mimicry ; Molecular Sequence Data ; Mutation ; Protein Conformation
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2011-06-07
    Description: Chronic lymphocytic leukaemia (CLL), the most frequent leukaemia in adults in Western countries, is a heterogeneous disease with variable clinical presentation and evolution. Two major molecular subtypes can be distinguished, characterized respectively by a high or low number of somatic hypermutations in the variable region of immunoglobulin genes. The molecular changes leading to the pathogenesis of the disease are still poorly understood. Here we performed whole-genome sequencing of four cases of CLL and identified 46 somatic mutations that potentially affect gene function. Further analysis of these mutations in 363 patients with CLL identified four genes that are recurrently mutated: notch 1 (NOTCH1), exportin 1 (XPO1), myeloid differentiation primary response gene 88 (MYD88) and kelch-like 6 (KLHL6). Mutations in MYD88 and KLHL6 are predominant in cases of CLL with mutated immunoglobulin genes, whereas NOTCH1 and XPO1 mutations are mainly detected in patients with unmutated immunoglobulins. The patterns of somatic mutation, supported by functional and clinical analyses, strongly indicate that the recurrent NOTCH1, MYD88 and XPO1 mutations are oncogenic changes that contribute to the clinical evolution of the disease. To our knowledge, this is the first comprehensive analysis of CLL combining whole-genome sequencing with clinical characteristics and clinical outcomes. It highlights the usefulness of this approach for the identification of clinically relevant mutations in cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3322590/" 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/PMC3322590/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puente, Xose S -- Pinyol, Magda -- Quesada, Victor -- Conde, Laura -- Ordonez, Gonzalo R -- Villamor, Neus -- Escaramis, Georgia -- Jares, Pedro -- Bea, Silvia -- Gonzalez-Diaz, Marcos -- Bassaganyas, Laia -- Baumann, Tycho -- Juan, Manel -- Lopez-Guerra, Monica -- Colomer, Dolors -- Tubio, Jose M C -- Lopez, Cristina -- Navarro, Alba -- Tornador, Cristian -- Aymerich, Marta -- Rozman, Maria -- Hernandez, Jesus M -- Puente, Diana A -- Freije, Jose M P -- Velasco, Gloria -- Gutierrez-Fernandez, Ana -- Costa, Dolors -- Carrio, Anna -- Guijarro, Sara -- Enjuanes, Anna -- Hernandez, Lluis -- Yague, Jordi -- Nicolas, Pilar -- Romeo-Casabona, Carlos M -- Himmelbauer, Heinz -- Castillo, Ester -- Dohm, Juliane C -- de Sanjose, Silvia -- Piris, Miguel A -- de Alava, Enrique -- San Miguel, Jesus -- Royo, Romina -- Gelpi, Josep L -- Torrents, David -- Orozco, Modesto -- Pisano, David G -- Valencia, Alfonso -- Guigo, Roderic -- Bayes, Monica -- Heath, Simon -- Gut, Marta -- Klatt, Peter -- Marshall, John -- Raine, Keiran -- Stebbings, Lucy A -- Futreal, P Andrew -- Stratton, Michael R -- Campbell, Peter J -- Gut, Ivo -- Lopez-Guillermo, Armando -- Estivill, Xavier -- Montserrat, Emili -- Lopez-Otin, Carlos -- Campo, Elias -- 088340/Wellcome Trust/United Kingdom -- 093867/Wellcome Trust/United Kingdom -- England -- Nature. 2011 Jun 5;475(7354):101-5. doi: 10.1038/nature10113.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departamento de Bioquimica y Biologia Molecular, Instituto Universitario de Oncologia, Universidad de Oviedo, 33006 Oviedo, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21642962" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/genetics ; DNA Mutational Analysis ; Genome, Human/*genetics ; Humans ; Karyopherins/genetics ; Leukemia, Lymphocytic, Chronic, B-Cell/*genetics ; Molecular Sequence Data ; Mutation/*genetics ; Myeloid Differentiation Factor 88/chemistry/genetics ; Receptor, Notch1/genetics ; Receptors, Cytoplasmic and Nuclear/genetics ; Reproducibility of Results
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2011-12-23
    Description: Human immunodeficiency virus (HIV) has a small genome and therefore relies heavily on the host cellular machinery to replicate. Identifying which host proteins and complexes come into physical contact with the viral proteins is crucial for a comprehensive understanding of how HIV rewires the host's cellular machinery during the course of infection. Here we report the use of affinity tagging and purification mass spectrometry to determine systematically the physical interactions of all 18 HIV-1 proteins and polyproteins with host proteins in two different human cell lines (HEK293 and Jurkat). Using a quantitative scoring system that we call MiST, we identified with high confidence 497 HIV-human protein-protein interactions involving 435 individual human proteins, with approximately 40% of the interactions being identified in both cell types. We found that the host proteins hijacked by HIV, especially those found interacting in both cell types, are highly conserved across primates. We uncovered a number of host complexes targeted by viral proteins, including the finding that HIV protease cleaves eIF3d, a subunit of eukaryotic translation initiation factor 3. This host protein is one of eleven identified in this analysis that act to inhibit HIV replication. This data set facilitates a more comprehensive and detailed understanding of how the host machinery is manipulated during the course of HIV infection.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3310911/" 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/PMC3310911/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jager, Stefanie -- Cimermancic, Peter -- Gulbahce, Natali -- Johnson, Jeffrey R -- McGovern, Kathryn E -- Clarke, Starlynn C -- Shales, Michael -- Mercenne, Gaelle -- Pache, Lars -- Li, Kathy -- Hernandez, Hilda -- Jang, Gwendolyn M -- Roth, Shoshannah L -- Akiva, Eyal -- Marlett, John -- Stephens, Melanie -- D'Orso, Ivan -- Fernandes, Jason -- Fahey, Marie -- Mahon, Cathal -- O'Donoghue, Anthony J -- Todorovic, Aleksandar -- Morris, John H -- Maltby, David A -- Alber, Tom -- Cagney, Gerard -- Bushman, Frederic D -- Young, John A -- Chanda, Sumit K -- Sundquist, Wesley I -- Kortemme, Tanja -- Hernandez, Ryan D -- Craik, Charles S -- Burlingame, Alma -- Sali, Andrej -- Frankel, Alan D -- Krogan, Nevan J -- P01 AI090935/AI/NIAID NIH HHS/ -- P01 AI090935-02/AI/NIAID NIH HHS/ -- P01 GM073732-05/GM/NIGMS NIH HHS/ -- P41 GM103481/GM/NIGMS NIH HHS/ -- P41 RR001081/RR/NCRR NIH HHS/ -- P41RR001614/RR/NCRR NIH HHS/ -- P50 GM081879/GM/NIGMS NIH HHS/ -- P50 GM081879-02/GM/NIGMS NIH HHS/ -- P50 GM082250/GM/NIGMS NIH HHS/ -- P50 GM082250-05/GM/NIGMS NIH HHS/ -- P50GM081879/GM/NIGMS NIH HHS/ -- P50GM082545/GM/NIGMS NIH HHS/ -- U54 RR022220/RR/NCRR NIH HHS/ -- England -- Nature. 2011 Dec 21;481(7381):365-70. doi: 10.1038/nature10719.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, California 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22190034" target="_blank"〉PubMed〈/a〉
    Keywords: Affinity Labels ; Amino Acid Sequence ; Conserved Sequence ; Eukaryotic Initiation Factor-3/chemistry/metabolism ; HEK293 Cells ; HIV Infections/metabolism/virology ; HIV Protease/metabolism ; HIV-1/*chemistry/*metabolism/physiology ; *Host-Pathogen Interactions ; Human Immunodeficiency Virus Proteins/analysis/chemistry/isolation & ; purification/*metabolism ; Humans ; Immunoprecipitation ; Jurkat Cells ; Mass Spectrometry ; Protein Binding ; Protein Interaction Mapping/*methods ; Protein Interaction Maps/*physiology ; Reproducibility of Results ; Virus Replication
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 1991-11-22
    Description: Three spatially distant surface loops were found to mediate the interaction of the coagulation protein factor X with the leukocyte integrin Mac-1. This interacting region, which by computational modeling defines a three-dimensional macromotif in the catalytic domain, was also recognized by glycoprotein C (gC), a factor X receptor expressed on herpes simplex virus (HSV)-infected endothelial cells. Peptidyl mimicry of each loop inhibited factor X binding to Mac-1 and gC, blocked monocyte generation of thrombin, and prevented monocyte adhesion to HSV-infected endothelium. These data link the ligand recognition of Mac-1 to established mechanisms of receptor-mediated vascular injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Altieri, D C -- Etingin, O R -- Fair, D S -- Brunck, T K -- Geltosky, J E -- Hajjar, D P -- Edgington, T S -- HL 46408/HL/NHLBI NIH HHS/ -- P01 HL 16411/HL/NHLBI NIH HHS/ -- R01 HL 43773/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Nov 22;254(5035):1200-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1957171" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding, Competitive ; Cell Line ; Factor X/*metabolism/ultrastructure ; Humans ; In Vitro Techniques ; Ligands ; Macrophage-1 Antigen/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Peptides/chemistry/metabolism ; Protein Conformation ; Viral Envelope Proteins/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2011-08-13
    Description: Antibody VRC01 is a human immunoglobulin that neutralizes about 90% of HIV-1 isolates. To understand how such broadly neutralizing antibodies develop, we used x-ray crystallography and 454 pyrosequencing to characterize additional VRC01-like antibodies from HIV-1-infected individuals. Crystal structures revealed a convergent mode of binding for diverse antibodies to the same CD4-binding-site epitope. A functional genomics analysis of expressed heavy and light chains revealed common pathways of antibody-heavy chain maturation, confined to the IGHV1-2*02 lineage, involving dozens of somatic changes, and capable of pairing with different light chains. Broadly neutralizing HIV-1 immunity associated with VRC01-like antibodies thus involves the evolution of antibodies to a highly affinity-matured state required to recognize an invariant viral structure, with lineages defined from thousands of sequences providing a genetic roadmap of their development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3516815/" 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/PMC3516815/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Xueling -- Zhou, Tongqing -- Zhu, Jiang -- Zhang, Baoshan -- Georgiev, Ivelin -- Wang, Charlene -- Chen, Xuejun -- Longo, Nancy S -- Louder, Mark -- McKee, Krisha -- O'Dell, Sijy -- Perfetto, Stephen -- Schmidt, Stephen D -- Shi, Wei -- Wu, Lan -- Yang, Yongping -- Yang, Zhi-Yong -- Yang, Zhongjia -- Zhang, Zhenhai -- Bonsignori, Mattia -- Crump, John A -- Kapiga, Saidi H -- Sam, Noel E -- Haynes, Barton F -- Simek, Melissa -- Burton, Dennis R -- Koff, Wayne C -- Doria-Rose, Nicole A -- Connors, Mark -- NISC Comparative Sequencing Program -- Mullikin, James C -- Nabel, Gary J -- Roederer, Mario -- Shapiro, Lawrence -- Kwong, Peter D -- Mascola, John R -- 5U19 AI 067854-06/AI/NIAID NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- U19 AI067854/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1593-602. doi: 10.1126/science.1207532. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21835983" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/genetics/*immunology/isolation & purification ; Antibody Affinity ; Antibody Specificity ; Antigens, CD4/metabolism ; Base Sequence ; Binding Sites ; Binding Sites, Antibody ; Complementarity Determining Regions/genetics ; Crystallography, X-Ray ; Epitopes ; *Evolution, Molecular ; Genes, Immunoglobulin Heavy Chain ; HIV Antibodies/*chemistry/genetics/*immunology/isolation & purification ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV Infections/immunology ; HIV-1/chemistry/*immunology ; High-Throughput Nucleotide Sequencing ; Humans ; Immunoglobulin Fab Fragments/chemistry/immunology ; Immunoglobulin Heavy Chains/chemistry/immunology ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Light Chains/chemistry/immunology ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Sequence Analysis, DNA
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2011-07-15
    Description: A hallmark of RNA silencing is a class of approximately 22-nucleotide RNAs that are processed from double-stranded RNA precursors by Dicer. Accurate processing by Dicer is crucial for the functionality of microRNAs (miRNAs). The current model posits that Dicer selects cleavage sites by measuring a set distance from the 3' overhang of the double-stranded RNA terminus. Here we report that human Dicer anchors not only the 3' end but also the 5' end, with the cleavage site determined mainly by the distance ( approximately 22 nucleotides) from the 5' end (5' counting rule). This cleavage requires a 5'-terminal phosphate group. Further, we identify a novel basic motif (5' pocket) in human Dicer that recognizes the 5'-phosphorylated end. The 5' counting rule and the 5' anchoring residues are conserved in Drosophila Dicer-1, but not in Giardia Dicer. Mutations in the 5' pocket reduce processing efficiency and alter cleavage sites in vitro. Consistently, miRNA biogenesis is perturbed in vivo when Dicer-null embryonic stem cells are replenished with the 5'-pocket mutant. Thus, 5'-end recognition by Dicer is important for precise and effective biogenesis of miRNAs. Insights from this study should also afford practical benefits to the design of small hairpin RNAs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4693635/" 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/PMC4693635/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Jong-Eun -- Heo, Inha -- Tian, Yuan -- Simanshu, Dhirendra K -- Chang, Hyeshik -- Jee, David -- Patel, Dinshaw J -- Kim, V Narry -- P30 CA008748/CA/NCI NIH HHS/ -- R01 AI068776/AI/NIAID NIH HHS/ -- England -- Nature. 2011 Jul 13;475(7355):201-5. doi: 10.1038/nature10198.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, Seoul National University, Seoul 151-742, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21753850" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites/genetics ; DEAD-box RNA Helicases/deficiency/genetics/*metabolism ; Drosophila Proteins/metabolism ; Embryonic Stem Cells/metabolism ; Evolution, Molecular ; Giardia/enzymology ; HEK293 Cells ; Humans ; MicroRNAs/biosynthesis/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Mutant Proteins/chemistry/genetics/metabolism ; Mutation/genetics ; Phosphates/metabolism ; Phosphorylation ; RNA Helicases/metabolism ; Ribonuclease III/deficiency/genetics/*metabolism ; Substrate Specificity/genetics
    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: 2011-03-25
    Description: Multiple myeloma is an incurable malignancy of plasma cells, and its pathogenesis is poorly understood. Here we report the massively parallel sequencing of 38 tumour genomes and their comparison to matched normal DNAs. Several new and unexpected oncogenic mechanisms were suggested by the pattern of somatic mutation across the data set. These include the mutation of genes involved in protein translation (seen in nearly half of the patients), genes involved in histone methylation, and genes involved in blood coagulation. In addition, a broader than anticipated role of NF-kappaB signalling was indicated by mutations in 11 members of the NF-kappaB pathway. Of potential immediate clinical relevance, activating mutations of the kinase BRAF were observed in 4% of patients, suggesting the evaluation of BRAF inhibitors in multiple myeloma clinical trials. These results indicate that cancer genome sequencing of large collections of samples will yield new insights into cancer not anticipated by existing knowledge.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3560292/" 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/PMC3560292/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapman, Michael A -- Lawrence, Michael S -- Keats, Jonathan J -- Cibulskis, Kristian -- Sougnez, Carrie -- Schinzel, Anna C -- Harview, Christina L -- Brunet, Jean-Philippe -- Ahmann, Gregory J -- Adli, Mazhar -- Anderson, Kenneth C -- Ardlie, Kristin G -- Auclair, Daniel -- Baker, Angela -- Bergsagel, P Leif -- Bernstein, Bradley E -- Drier, Yotam -- Fonseca, Rafael -- Gabriel, Stacey B -- Hofmeister, Craig C -- Jagannath, Sundar -- Jakubowiak, Andrzej J -- Krishnan, Amrita -- Levy, Joan -- Liefeld, Ted -- Lonial, Sagar -- Mahan, Scott -- Mfuko, Bunmi -- Monti, Stefano -- Perkins, Louise M -- Onofrio, Robb -- Pugh, Trevor J -- Rajkumar, S Vincent -- Ramos, Alex H -- Siegel, David S -- Sivachenko, Andrey -- Stewart, A Keith -- Trudel, Suzanne -- Vij, Ravi -- Voet, Douglas -- Winckler, Wendy -- Zimmerman, Todd -- Carpten, John -- Trent, Jeff -- Hahn, William C -- Garraway, Levi A -- Meyerson, Matthew -- Lander, Eric S -- Getz, Gad -- Golub, Todd R -- K12 CA133250/CA/NCI NIH HHS/ -- R01 AG020686/AG/NIA NIH HHS/ -- R01 AG020686-07/AG/NIA NIH HHS/ -- R01 CA133115/CA/NCI NIH HHS/ -- R01 CA133115-04/CA/NCI NIH HHS/ -- R01 CA133966/CA/NCI NIH HHS/ -- R01 CA133966-03/CA/NCI NIH HHS/ -- England -- Nature. 2011 Mar 24;471(7339):467-72. doi: 10.1038/nature09837.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Eli and Edythe L. Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02412, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21430775" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Blood Coagulation/genetics ; CpG Islands/genetics ; DNA Mutational Analysis ; DNA Repair/genetics ; Exons/genetics ; Exosome Multienzyme Ribonuclease Complex ; Genome, Human/*genetics ; Genomics ; Histones/metabolism ; Homeodomain Proteins/genetics ; Homeostasis/genetics ; Humans ; Methylation ; Models, Molecular ; Molecular Sequence Data ; Multiple Myeloma/drug therapy/enzymology/*genetics/metabolism ; Mutation/*genetics ; NF-kappa B/metabolism ; Oncogenes/genetics ; Open Reading Frames/genetics ; Protein Biosynthesis/genetics ; Protein Conformation ; Proto-Oncogene Proteins B-raf/antagonists & inhibitors/genetics/metabolism ; RNA Processing, Post-Transcriptional/genetics ; Ribonucleases/chemistry/genetics ; Signal Transduction/genetics ; Transcription, Genetic/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1991-01-04
    Description: An expression cloning strategy was devised to isolate the keratinocyte growth factor (KGF) receptor complementary DNA. NIH/3T3 fibroblasts, which secrete this epithelial cell-specific mitogen, were transfected with a keratinocyte expression complementary DNA library. Among several transformed foci identified, one demonstrated the acquisition of specific high-affinity KGF binding sites. The pattern of binding competition by related fibroblast growth factors (FGFs) indicated that this receptor had high affinity for acidic FGF as well as KGF. The rescued 4.2-kilobase complementary DNA was shown to encode a predicted membrane-spanning tyrosine kinase related to but distinct from the basic FGF receptor. This expression cloning approach may be generally applicable to the isolation of genes that constitute limiting steps in mitogenic signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miki, T -- Fleming, T P -- Bottaro, D P -- Rubin, J S -- Ron, D -- Aaronson, S A -- New York, N.Y. -- Science. 1991 Jan 4;251(4989):72-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1846048" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding, Competitive ; Cell Line ; *Cloning, Molecular ; DNA/*genetics ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; Fibroblast Growth Factors/metabolism ; Fibroblasts/metabolism ; *Gene Expression ; Growth Substances/metabolism ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Plasmids ; Receptor, Fibroblast Growth Factor, Type 2 ; Receptors, Cell Surface/*genetics/metabolism ; *Receptors, Fibroblast Growth Factor ; Recombinant Proteins/metabolism ; Transfection ; Transformation, Genetic
    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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