ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Publication Date: 2010-11-06
    Description: Infectious and inflammatory diseases have repeatedly shown strong genetic associations within the major histocompatibility complex (MHC); however, the basis for these associations remains elusive. To define host genetic effects on the outcome of a chronic viral infection, we performed genome-wide association analysis in a multiethnic cohort of HIV-1 controllers and progressors, and we analyzed the effects of individual amino acids within the classical human leukocyte antigen (HLA) proteins. We identified 〉300 genome-wide significant single-nucleotide polymorphisms (SNPs) within the MHC and none elsewhere. Specific amino acids in the HLA-B peptide binding groove, as well as an independent HLA-C effect, explain the SNP associations and reconcile both protective and risk HLA alleles. These results implicate the nature of the HLA-viral peptide interaction as the major factor modulating durable control of HIV infection.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235490/" 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/PMC3235490/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉International HIV Controllers Study -- Pereyra, Florencia -- Jia, Xiaoming -- McLaren, Paul J -- Telenti, Amalio -- de Bakker, Paul I W -- Walker, Bruce D -- Ripke, Stephan -- Brumme, Chanson J -- Pulit, Sara L -- Carrington, Mary -- Kadie, Carl M -- Carlson, Jonathan M -- Heckerman, David -- Graham, Robert R -- Plenge, Robert M -- Deeks, Steven G -- Gianniny, Lauren -- Crawford, Gabriel -- Sullivan, Jordan -- Gonzalez, Elena -- Davies, Leela -- Camargo, Amy -- Moore, Jamie M -- Beattie, Nicole -- Gupta, Supriya -- Crenshaw, Andrew -- Burtt, Noel P -- Guiducci, Candace -- Gupta, Namrata -- Gao, Xiaojiang -- Qi, Ying -- Yuki, Yuko -- Piechocka-Trocha, Alicja -- Cutrell, Emily -- Rosenberg, Rachel -- Moss, Kristin L -- Lemay, Paul -- O'Leary, Jessica -- Schaefer, Todd -- Verma, Pranshu -- Toth, Ildiko -- Block, Brian -- Baker, Brett -- Rothchild, Alissa -- Lian, Jeffrey -- Proudfoot, Jacqueline -- Alvino, Donna Marie L -- Vine, Seanna -- Addo, Marylyn M -- Allen, Todd M -- Altfeld, Marcus -- Henn, Matthew R -- Le Gall, Sylvie -- Streeck, Hendrik -- Haas, David W -- Kuritzkes, Daniel R -- Robbins, Gregory K -- Shafer, Robert W -- Gulick, Roy M -- Shikuma, Cecilia M -- Haubrich, Richard -- Riddler, Sharon -- Sax, Paul E -- Daar, Eric S -- Ribaudo, Heather J -- Agan, Brian -- Agarwal, Shanu -- Ahern, Richard L -- Allen, Brady L -- Altidor, Sherly -- Altschuler, Eric L -- Ambardar, Sujata -- Anastos, Kathryn -- Anderson, Ben -- Anderson, Val -- Andrady, Ushan -- Antoniskis, Diana -- Bangsberg, David -- Barbaro, Daniel -- Barrie, William -- Bartczak, J -- Barton, Simon -- Basden, Patricia -- Basgoz, Nesli -- Bazner, Suzane -- Bellos, Nicholaos C -- Benson, Anne M -- Berger, Judith -- Bernard, Nicole F -- Bernard, Annette M -- Birch, Christopher -- Bodner, Stanley J -- Bolan, Robert K -- Boudreaux, Emilie T -- Bradley, Meg -- Braun, James F -- Brndjar, Jon E -- Brown, Stephen J -- Brown, Katherine -- Brown, Sheldon T -- Burack, Jedidiah -- Bush, Larry M -- Cafaro, Virginia -- Campbell, Omobolaji -- Campbell, John -- Carlson, Robert H -- Carmichael, J Kevin -- Casey, Kathleen K -- Cavacuiti, Chris -- Celestin, Gregory -- Chambers, Steven T -- Chez, Nancy -- Chirch, Lisa M -- Cimoch, Paul J -- Cohen, Daniel -- Cohn, Lillian E -- Conway, Brian -- Cooper, David A -- Cornelson, Brian -- Cox, David T -- Cristofano, Michael V -- Cuchural, George Jr -- Czartoski, Julie L -- Dahman, Joseph M -- Daly, Jennifer S -- Davis, Benjamin T -- Davis, Kristine -- Davod, Sheila M -- DeJesus, Edwin -- Dietz, Craig A -- Dunham, Eleanor -- Dunn, Michael E -- Ellerin, Todd B -- Eron, Joseph J -- Fangman, John J W -- Farel, Claire E -- Ferlazzo, Helen -- Fidler, Sarah -- Fleenor-Ford, Anita -- Frankel, Renee -- Freedberg, Kenneth A -- French, Neel K -- Fuchs, Jonathan D -- Fuller, Jon D -- Gaberman, Jonna -- Gallant, Joel E -- Gandhi, Rajesh T -- Garcia, Efrain -- Garmon, Donald -- Gathe, Joseph C Jr -- Gaultier, Cyril R -- Gebre, Wondwoosen -- Gilman, Frank D -- Gilson, Ian -- Goepfert, Paul A -- Gottlieb, Michael S -- Goulston, Claudia -- Groger, Richard K -- Gurley, T Douglas -- Haber, Stuart -- Hardwicke, Robin -- Hardy, W David -- Harrigan, P Richard -- Hawkins, Trevor N -- Heath, Sonya -- Hecht, Frederick M -- Henry, W Keith -- Hladek, Melissa -- Hoffman, Robert P -- Horton, James M -- Hsu, Ricky K -- Huhn, Gregory D -- Hunt, Peter -- Hupert, Mark J -- Illeman, Mark L -- Jaeger, Hans -- Jellinger, Robert M -- John, Mina -- Johnson, Jennifer A -- Johnson, Kristin L -- Johnson, Heather -- Johnson, Kay -- Joly, Jennifer -- Jordan, Wilbert C -- Kauffman, Carol A -- Khanlou, Homayoon -- Killian, Robert K -- Kim, Arthur Y -- Kim, David D -- Kinder, Clifford A -- Kirchner, Jeffrey T -- Kogelman, Laura -- Kojic, Erna Milunka -- Korthuis, P Todd -- Kurisu, Wayne -- Kwon, Douglas S -- LaMar, Melissa -- Lampiris, Harry -- Lanzafame, Massimiliano -- Lederman, Michael M -- Lee, David M -- Lee, Jean M L -- Lee, Marah J -- Lee, Edward T Y -- Lemoine, Janice -- Levy, Jay A -- Llibre, Josep M -- Liguori, Michael A -- Little, Susan J -- Liu, Anne Y -- Lopez, Alvaro J -- Loutfy, Mono R -- Loy, Dawn -- Mohammed, Debbie Y -- Man, Alan -- Mansour, Michael K -- Marconi, Vincent C -- Markowitz, Martin -- Marques, Rui -- Martin, Jeffrey N -- Martin, Harold L Jr -- Mayer, Kenneth Hugh -- McElrath, M Juliana -- McGhee, Theresa A -- McGovern, Barbara H -- McGowan, Katherine -- McIntyre, Dawn -- Mcleod, Gavin X -- Menezes, Prema -- Mesa, Greg -- Metroka, Craig E -- Meyer-Olson, Dirk -- Miller, Andy O -- Montgomery, Kate -- Mounzer, Karam C -- Nagami, Ellen H -- Nagin, Iris -- Nahass, Ronald G -- Nelson, Margret O -- Nielsen, Craig -- Norene, David L -- O'Connor, David H -- Ojikutu, Bisola O -- Okulicz, Jason -- Oladehin, Olakunle O -- Oldfield, Edward C 3rd -- Olender, Susan A -- Ostrowski, Mario -- Owen, William F Jr -- Pae, Eunice -- Parsonnet, Jeffrey -- Pavlatos, Andrew M -- Perlmutter, Aaron M -- Pierce, Michael N -- Pincus, Jonathan M -- Pisani, Leandro -- Price, Lawrence Jay -- Proia, Laurie -- Prokesch, Richard C -- Pujet, Heather Calderon -- Ramgopal, Moti -- Rathod, Almas -- Rausch, Michael -- Ravishankar, J -- Rhame, Frank S -- Richards, Constance Shamuyarira -- Richman, Douglas D -- Rodes, Berta -- Rodriguez, Milagros -- Rose, Richard C 3rd -- Rosenberg, Eric S -- Rosenthal, Daniel -- Ross, Polly E -- Rubin, David S -- Rumbaugh, Elease -- Saenz, Luis -- Salvaggio, Michelle R -- Sanchez, William C -- Sanjana, Veeraf M -- Santiago, Steven -- Schmidt, Wolfgang -- Schuitemaker, Hanneke -- Sestak, Philip M -- Shalit, Peter -- Shay, William -- Shirvani, Vivian N -- Silebi, Vanessa I -- Sizemore, James M Jr -- Skolnik, Paul R -- Sokol-Anderson, Marcia -- Sosman, James M -- Stabile, Paul -- Stapleton, Jack T -- Starrett, Sheree -- Stein, Francine -- Stellbrink, Hans-Jurgen -- Sterman, F Lisa -- Stone, Valerie E -- Stone, David R -- Tambussi, Giuseppe -- Taplitz, Randy A -- Tedaldi, Ellen M -- Theisen, William -- Torres, Richard -- Tosiello, Lorraine -- Tremblay, Cecile -- Tribble, Marc A -- Trinh, Phuong D -- Tsao, Alice -- Ueda, Peggy -- Vaccaro, Anthony -- Valadas, Emilia -- Vanig, Thanes J -- Vecino, Isabel -- Vega, Vilma M -- Veikley, Wenoah -- Wade, Barbara H -- Walworth, Charles -- Wanidworanun, Chingchai -- Ward, Douglas J -- Warner, Daniel A -- Weber, Robert D -- Webster, Duncan -- Weis, Steve -- Wheeler, David A -- White, David J -- Wilkins, Ed -- Winston, Alan -- Wlodaver, Clifford G -- van't Wout, Angelique -- Wright, David P -- Yang, Otto O -- Yurdin, David L -- Zabukovic, Brandon W -- Zachary, Kimon C -- Zeeman, Beth -- Zhao, Meng -- AI030914/AI/NIAID NIH HHS/ -- AI068636/AI/NIAID NIH HHS/ -- AI069415/AI/NIAID NIH HHS/ -- AI069419/AI/NIAID NIH HHS/ -- AI069423/AI/NIAID NIH HHS/ -- AI069424/AI/NIAID NIH HHS/ -- AI069428/AI/NIAID NIH HHS/ -- AI069432/AI/NIAID NIH HHS/ -- AI069434/AI/NIAID NIH HHS/ -- AI069450/AI/NIAID NIH HHS/ -- AI069452/AI/NIAID NIH HHS/ -- AI069465/AI/NIAID NIH HHS/ -- AI069471/AI/NIAID NIH HHS/ -- AI069472/AI/NIAID NIH HHS/ -- AI069474/AI/NIAID NIH HHS/ -- AI069477/AI/NIAID NIH HHS/ -- AI069484/AI/NIAID NIH HHS/ -- AI069495/AI/NIAID NIH HHS/ -- AI069501/AI/NIAID NIH HHS/ -- AI069502/AI/NIAID NIH HHS/ -- AI069511/AI/NIAID NIH HHS/ -- AI069513/AI/NIAID NIH HHS/ -- AI069532/AI/NIAID NIH HHS/ -- AI069556/AI/NIAID NIH HHS/ -- AI077505/AI/NIAID NIH HHS/ -- AI087145/AI/NIAID NIH HHS/ -- AI25859/AI/NIAID NIH HHS/ -- AI27661/AI/NIAID NIH HHS/ -- AI28568/AI/NIAID NIH HHS/ -- AI30914/AI/NIAID NIH HHS/ -- AI34835/AI/NIAID NIH HHS/ -- AI34853/AI/NIAID NIH HHS/ -- AI38844/AI/NIAID NIH HHS/ -- AI46370/AI/NIAID NIH HHS/ -- AI68634/AI/NIAID NIH HHS/ -- AI69467/AI/NIAID NIH HHS/ -- AL32782/PHS HHS/ -- HHSN261200800001E/PHS HHS/ -- K23 DA019809/DA/NIDA NIH HHS/ -- K24 AI051966/AI/NIAID NIH HHS/ -- K24 AI064086/AI/NIAID NIH HHS/ -- K24 AI064086-05/AI/NIAID NIH HHS/ -- K24 AI069994/AI/NIAID NIH HHS/ -- K24 AI069994-04/AI/NIAID NIH HHS/ -- K24 AI069994-05/AI/NIAID NIH HHS/ -- K24AI069994/AI/NIAID NIH HHS/ -- KL2 RR024977/RR/NCRR NIH HHS/ -- MH071205/MH/NIMH NIH HHS/ -- MH085520/MH/NIMH NIH HHS/ -- P-30 AI27763/AI/NIAID NIH HHS/ -- P-30-AI060354/AI/NIAID NIH HHS/ -- P30 AI027763/AI/NIAID NIH HHS/ -- P30 AI027763-19/AI/NIAID NIH HHS/ -- P30 AI027763-20/AI/NIAID NIH HHS/ -- P30 AI050410/AI/NIAID NIH HHS/ -- P30 AI060354/AI/NIAID NIH HHS/ -- P30 AI060354-08/AI/NIAID NIH HHS/ -- P30 AI060354-09/AI/NIAID NIH HHS/ -- R01 AI028568/AI/NIAID NIH HHS/ -- R01 AI028568-18/AI/NIAID NIH HHS/ -- R01 AI028568-19/AI/NIAID NIH HHS/ -- R01 AI028568-20/AI/NIAID NIH HHS/ -- R01 AI030914/AI/NIAID NIH HHS/ -- R01 AI030914-16/AI/NIAID NIH HHS/ -- R01 AI030914-17/AI/NIAID NIH HHS/ -- R01 AI077505/AI/NIAID NIH HHS/ -- R01 AI077505-04/AI/NIAID NIH HHS/ -- R01 AI077505-05/AI/NIAID NIH HHS/ -- R01 AI087145/AI/NIAID NIH HHS/ -- R01 AI087145-01/AI/NIAID NIH HHS/ -- R01 AI087145-02/AI/NIAID NIH HHS/ -- R01 MH054907/MH/NIMH NIH HHS/ -- R01 MH071205/MH/NIMH NIH HHS/ -- R01 MH071205-04/MH/NIMH NIH HHS/ -- R01 MH071205-05/MH/NIMH NIH HHS/ -- R24 AI067039/AI/NIAID NIH HHS/ -- R24 AI067039-06/AI/NIAID NIH HHS/ -- R24 AI067039-07/AI/NIAID NIH HHS/ -- R37 AI028568/AI/NIAID NIH HHS/ -- R37 AI028568-15/AI/NIAID NIH HHS/ -- RR024975/RR/NCRR NIH HHS/ -- T32 AI007061/AI/NIAID NIH HHS/ -- TL1 RR024978/RR/NCRR NIH HHS/ -- U01 AI027661-18/AI/NIAID NIH HHS/ -- U01 AI027661-19/AI/NIAID NIH HHS/ -- U01 AI032782-13/AI/NIAID NIH HHS/ -- U01 AI034835-07/AI/NIAID NIH HHS/ -- U01 AI034835-07S3/AI/NIAID NIH HHS/ -- U01 AI034853/AI/NIAID NIH HHS/ -- U01 AI034853-11/AI/NIAID NIH HHS/ -- U01 AI034853-12/AI/NIAID NIH HHS/ -- U01 AI038844-04/AI/NIAID NIH HHS/ -- U01 AI038844-04S1/AI/NIAID NIH HHS/ -- U01 AI038844-04S2/AI/NIAID NIH HHS/ -- U01 AI038844-04S3/AI/NIAID NIH HHS/ -- U01 AI046370-04/AI/NIAID NIH HHS/ -- U01 AI046370-05/AI/NIAID NIH HHS/ -- U01 AI069419/AI/NIAID NIH HHS/ -- U01 AI069419-05/AI/NIAID NIH HHS/ -- U01 AI069419-06/AI/NIAID NIH HHS/ -- U01 AI069423/AI/NIAID NIH HHS/ -- U01 AI069423-05/AI/NIAID NIH HHS/ -- U01 AI069423-06/AI/NIAID NIH HHS/ -- U01 AI069424/AI/NIAID NIH HHS/ -- U01 AI069424-05/AI/NIAID NIH HHS/ -- U01 AI069424-06/AI/NIAID NIH HHS/ -- U01 AI069428/AI/NIAID NIH HHS/ -- U01 AI069428-05/AI/NIAID NIH HHS/ -- U01 AI069428-06/AI/NIAID NIH HHS/ -- U01 AI069432/AI/NIAID NIH HHS/ -- U01 AI069432-05/AI/NIAID NIH HHS/ -- U01 AI069432-06/AI/NIAID NIH HHS/ -- U01 AI069434/AI/NIAID NIH HHS/ -- U01 AI069434-05/AI/NIAID NIH HHS/ -- U01 AI069434-06/AI/NIAID NIH HHS/ -- U01 AI069450/AI/NIAID NIH HHS/ -- U01 AI069450-05/AI/NIAID NIH HHS/ -- U01 AI069450-06/AI/NIAID NIH HHS/ -- U01 AI069452/AI/NIAID NIH HHS/ -- U01 AI069452-05/AI/NIAID NIH HHS/ -- U01 AI069452-06/AI/NIAID NIH HHS/ -- U01 AI069465/AI/NIAID NIH HHS/ -- U01 AI069465-05/AI/NIAID NIH HHS/ -- U01 AI069465-06/AI/NIAID NIH HHS/ -- U01 AI069467/AI/NIAID NIH HHS/ -- U01 AI069467-05/AI/NIAID NIH HHS/ -- U01 AI069467-06/AI/NIAID NIH HHS/ -- U01 AI069471/AI/NIAID NIH HHS/ -- U01 AI069471-05/AI/NIAID NIH HHS/ -- U01 AI069471-06/AI/NIAID NIH HHS/ -- U01 AI069472/AI/NIAID NIH HHS/ -- U01 AI069472-05/AI/NIAID NIH HHS/ -- U01 AI069472-06/AI/NIAID NIH HHS/ -- U01 AI069474/AI/NIAID NIH HHS/ -- U01 AI069474-05/AI/NIAID NIH HHS/ -- U01 AI069474-06/AI/NIAID NIH HHS/ -- U01 AI069477/AI/NIAID NIH HHS/ -- U01 AI069477-05/AI/NIAID NIH HHS/ -- U01 AI069477-06/AI/NIAID NIH HHS/ -- U01 AI069484/AI/NIAID NIH HHS/ -- U01 AI069484-05/AI/NIAID NIH HHS/ -- U01 AI069484-06/AI/NIAID NIH HHS/ -- U01 AI069495/AI/NIAID NIH HHS/ -- U01 AI069495-05/AI/NIAID NIH HHS/ -- U01 AI069495-06/AI/NIAID NIH HHS/ -- U01 AI069501/AI/NIAID NIH HHS/ -- U01 AI069501-05/AI/NIAID NIH HHS/ -- U01 AI069501-06/AI/NIAID NIH HHS/ -- U01 AI069502/AI/NIAID NIH HHS/ -- U01 AI069502-05/AI/NIAID NIH HHS/ -- U01 AI069502-06/AI/NIAID NIH HHS/ -- U01 AI069511/AI/NIAID NIH HHS/ -- U01 AI069511-05/AI/NIAID NIH HHS/ -- U01 AI069511-06/AI/NIAID NIH HHS/ -- U01 AI069513-05/AI/NIAID NIH HHS/ -- U01 AI069513-06/AI/NIAID NIH HHS/ -- U01 AI069532/AI/NIAID NIH HHS/ -- U01 AI069532-05/AI/NIAID NIH HHS/ -- U01 AI069532-06/AI/NIAID NIH HHS/ -- U01 AI069556-05/AI/NIAID NIH HHS/ -- U01 AI069556-06/AI/NIAID NIH HHS/ -- U01 MH085520/MH/NIMH NIH HHS/ -- U01 MH085520-01/MH/NIMH NIH HHS/ -- UL1 RR024131/RR/NCRR NIH HHS/ -- UL1 RR024131-06/RR/NCRR NIH HHS/ -- UL1 RR024131-07/RR/NCRR NIH HHS/ -- UL1 RR024975/RR/NCRR NIH HHS/ -- UL1 RR024975-04/RR/NCRR NIH HHS/ -- UL1 RR024975-05/RR/NCRR NIH HHS/ -- UM1 AI068634/AI/NIAID NIH HHS/ -- UM1 AI068634-06/AI/NIAID NIH HHS/ -- UM1 AI068634-07/AI/NIAID NIH HHS/ -- UM1 AI068636-06/AI/NIAID NIH HHS/ -- UM1 AI068636-07/AI/NIAID NIH HHS/ -- UM1 AI069477/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Dec 10;330(6010):1551-7. doi: 10.1126/science.1195271. Epub 2010 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology (MIT) and Harvard, Boston, MA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21051598" target="_blank"〉PubMed〈/a〉
    Keywords: African Americans/genetics ; Alleles ; Amino Acids/physiology ; *Antigen Presentation ; CD8-Positive T-Lymphocytes/immunology ; Cohort Studies ; Disease Progression ; European Continental Ancestry Group/genetics ; *Genes, MHC Class I ; Genome-Wide Association Study ; HIV Antigens/immunology ; HIV Infections/ethnology/*genetics/*immunology/virology ; HIV Long-Term Survivors ; *HIV-1/immunology ; HLA-A Antigens/chemistry/genetics/immunology/metabolism ; HLA-B Antigens/chemistry/*genetics/immunology/metabolism ; HLA-C Antigens/chemistry/genetics/immunology/metabolism ; Haplotypes ; Hispanic Americans/genetics ; Humans ; Immunity, Innate ; Logistic Models ; Models, Molecular ; Polymorphism, Single Nucleotide ; Protein Conformation ; Viral Load
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2018-06-06
    Description: The evolution of stratospheric ozone from 1960 to 2100 is examined in simulations from fourteen chemistry-climate models. There is general agreement among the models at the broadest levels, showing column ozone decreasing at all latitudes from 1960 to around 2000, then increasing at all latitudes over the first half of the 21st century, and latitudinal variations in the rate of increase and date of return to historical values. In the second half of the century, ozone is projected to continue increasing, level off or even decrease depending on the latitude, resulting in variable dates of return to historical values at latitudes where column ozone has declined below those levels. Separation into partial column above and below 20 hPa reveals that these latitudinal differences are almost completely due to differences in the lower stratosphere. At all latitudes, upper stratospheric ozone increases throughout the 21st century and returns to 1960 levels before the end of the century, although there is a spread among the models in dates that ozone returns to historical values. Using multiple linear regression, we find decreasing halogens and increasing greenhouse gases contribute almost equally to increases in the upper stratospheric ozone. In the tropical lower stratosphere an increase in tropical upwelling causes a steady decrease in ozone through the 21st century, and total column ozone does not return to 1960 levels in all models. In contrast, lower stratospheric and total column ozone in middle and high latitudes increases during the 21st century and returns to 1960 levels.
    Keywords: Meteorology and Climatology
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2010-08-06
    Description: Despite the success of genomics in identifying new essential bacterial genes, there is a lack of sustainable leads in antibacterial drug discovery to address increasing multidrug resistance. Type IIA topoisomerases cleave and religate DNA to regulate DNA topology and are a major class of antibacterial and anticancer drug targets, yet there is no well developed structural basis for understanding drug action. Here we report the 2.1 A crystal structure of a potent, new class, broad-spectrum antibacterial agent in complex with Staphylococcus aureus DNA gyrase and DNA, showing a new mode of inhibition that circumvents fluoroquinolone resistance in this clinically important drug target. The inhibitor 'bridges' the DNA and a transient non-catalytic pocket on the two-fold axis at the GyrA dimer interface, and is close to the active sites and fluoroquinolone binding sites. In the inhibitor complex the active site seems poised to cleave the DNA, with a single metal ion observed between the TOPRIM (topoisomerase/primase) domain and the scissile phosphate. This work provides new insights into the mechanism of topoisomerase action and a platform for structure-based drug design of a new class of antibacterial agents against a clinically proven, but conformationally flexible, enzyme class.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bax, Benjamin D -- Chan, Pan F -- Eggleston, Drake S -- Fosberry, Andrew -- Gentry, Daniel R -- Gorrec, Fabrice -- Giordano, Ilaria -- Hann, Michael M -- Hennessy, Alan -- Hibbs, Martin -- Huang, Jianzhong -- Jones, Emma -- Jones, Jo -- Brown, Kristin Koretke -- Lewis, Ceri J -- May, Earl W -- Saunders, Martin R -- Singh, Onkar -- Spitzfaden, Claus E -- Shen, Carol -- Shillings, Anthony -- Theobald, Andrew J -- Wohlkonig, Alexandre -- Pearson, Neil D -- Gwynn, Michael N -- Wellcome Trust/United Kingdom -- England -- Nature. 2010 Aug 19;466(7309):935-40. doi: 10.1038/nature09197. Epub 2010 Aug 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Discovery Research, GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK. benjamin.d.bax@gsk.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20686482" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/*chemistry/metabolism/*pharmacology ; Apoenzymes/chemistry/metabolism ; Arginine/metabolism ; Aspartic Acid/metabolism ; Binding Sites ; Catalytic Domain ; Ciprofloxacin/chemistry/metabolism ; Crystallography, X-Ray ; DNA/chemistry/metabolism ; DNA Cleavage ; DNA Gyrase/*chemistry/metabolism ; DNA, Superhelical/chemistry/metabolism ; Drug Design ; Drug Resistance ; Escherichia coli/enzymology ; Manganese/metabolism ; Models, Molecular ; Protein Conformation ; Quinolines/*chemistry/metabolism/*pharmacology ; Quinolones/chemistry/metabolism ; Staphylococcus aureus/*enzymology ; Structure-Activity Relationship ; *Topoisomerase II Inhibitors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2010-05-22
    Description: Self-assembled nanostructures obtained from natural and synthetic amphiphiles serve as mimics of biological membranes and enable the delivery of drugs, proteins, genes, and imaging agents. Yet the precise molecular arrangements demanded by these functions are difficult to achieve. Libraries of amphiphilic Janus dendrimers, prepared by facile coupling of tailored hydrophilic and hydrophobic branched segments, have been screened by cryogenic transmission electron microscopy, revealing a rich palette of morphologies in water, including vesicles, denoted dendrimersomes, cubosomes, disks, tubular vesicles, and helical ribbons. Dendrimersomes marry the stability and mechanical strength obtainable from polymersomes with the biological function of stabilized phospholipid liposomes, plus superior uniformity of size, ease of formation, and chemical functionalization. This modular synthesis strategy provides access to systematic tuning of molecular structure and of self-assembled architecture.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Percec, Virgil -- Wilson, Daniela A -- Leowanawat, Pawaret -- Wilson, Christopher J -- Hughes, Andrew D -- Kaucher, Mark S -- Hammer, Daniel A -- Levine, Dalia H -- Kim, Anthony J -- Bates, Frank S -- Davis, Kevin P -- Lodge, Timothy P -- Klein, Michael L -- DeVane, Russell H -- Aqad, Emad -- Rosen, Brad M -- Argintaru, Andreea O -- Sienkowska, Monika J -- Rissanen, Kari -- Nummelin, Sami -- Ropponen, Jarmo -- New York, N.Y. -- Science. 2010 May 21;328(5981):1009-14. doi: 10.1126/science.1185547.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA. percec@sas.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20489021" target="_blank"〉PubMed〈/a〉
    Keywords: Antibiotics, Antineoplastic/administration & dosage ; Biomimetic Materials/chemistry ; Cryoelectron Microscopy ; Dendrimers/*chemistry ; Doxorubicin/administration & dosage ; Drug Carriers ; Hydrophobic and Hydrophilic Interactions ; *Membranes, Artificial ; Models, Molecular ; Molecular Dynamics Simulation ; Molecular Structure ; *Nanostructures ; Surface Properties ; Surface-Active Agents/chemistry ; Water
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2010-02-19
    Description: E1 enzymes activate ubiquitin (Ub) and ubiquitin-like (Ubl) proteins in two steps by carboxy-terminal adenylation and thioester bond formation to a conserved catalytic cysteine in the E1 Cys domain. The structural basis for these intermediates remains unknown. Here we report crystal structures for human SUMO E1 in complex with SUMO adenylate and tetrahedral intermediate analogues at 2.45 and 2.6 A, respectively. These structures show that side chain contacts to ATP.Mg are released after adenylation to facilitate a 130 degree rotation of the Cys domain during thioester bond formation that is accompanied by remodelling of key structural elements including the helix that contains the E1 catalytic cysteine, the crossover and re-entry loops, and refolding of two helices that are required for adenylation. These changes displace side chains required for adenylation with side chains required for thioester bond formation. Mutational and biochemical analyses indicate these mechanisms are conserved in other E1s.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2866016/" 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/PMC2866016/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olsen, Shaun K -- Capili, Allan D -- Lu, Xuequan -- Tan, Derek S -- Lima, Christopher D -- F32 GM075695/GM/NIGMS NIH HHS/ -- F32 GM075695-03/GM/NIGMS NIH HHS/ -- R01 AI068038/AI/NIAID NIH HHS/ -- R01 AI068038-02/AI/NIAID NIH HHS/ -- R01 AI068038-03/AI/NIAID NIH HHS/ -- R01 GM065872/GM/NIGMS NIH HHS/ -- R01 GM065872-09/GM/NIGMS NIH HHS/ -- RR-15301/RR/NCRR NIH HHS/ -- England -- Nature. 2010 Feb 18;463(7283):906-12. doi: 10.1038/nature08765.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology, Sloan-Kettering Institute, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20164921" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; *Biocatalysis ; Catalytic Domain/*physiology ; Conserved Sequence ; Crystallography, X-Ray ; Cysteine/chemistry/metabolism ; Humans ; Magnesium/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; SUMO-1 Protein/*chemistry/*metabolism ; Saccharomyces cerevisiae ; Saccharomyces cerevisiae Proteins/metabolism ; Small Ubiquitin-Related Modifier Proteins/metabolism ; Sulfides/*metabolism ; Ubiquitin/metabolism ; Ubiquitin-Activating Enzymes/*chemistry/*metabolism ; Ubiquitins/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2010-10-16
    Description: Crystallization of L-cystine is a critical step in the pathogenesis of cystine kidney stones. Treatments for this disease are somewhat effective but often lead to adverse side effects. Real-time in situ atomic force microscopy (AFM) reveals that L-cystine dimethylester (L-CDME) and L-cystine methylester (L-CME) dramatically reduce the growth velocity of the six symmetry-equivalent {100} steps because of specific binding at the crystal surface, which frustrates the attachment of L-cystine molecules. L-CDME and L-CME produce l-cystine crystals with different habits that reveal distinct binding modes at the crystal surfaces. The AFM observations are mirrored by reduced crystal yield and crystal size in the presence of L-CDME and L-CME, collectively suggesting a new pathway to the prevention of L-cystine stones by rational design of crystal growth inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rimer, Jeffrey D -- An, Zhihua -- Zhu, Zina -- Lee, Michael H -- Goldfarb, David S -- Wesson, Jeffrey A -- Ward, Michael D -- 1U54DK083908-01/DK/NIDDK NIH HHS/ -- R01 DK068551/DK/NIDDK NIH HHS/ -- R01-DK068551/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 15;330(6002):337-41. doi: 10.1126/science.1191968.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and the Molecular Design Institute, New York University (NYU), 100 Washington Square East, New York, NY 10003-6688, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20947757" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Crystallization ; Cystine/*analogs & derivatives/*chemistry/metabolism/pharmacology ; Cystinuria/complications/*drug therapy ; Drug Design ; Humans ; Hydrogen Bonding ; Kidney Calculi/chemistry/etiology/*prevention & control ; Microscopy, Atomic Force ; Models, Molecular ; Molecular Mimicry ; Molecular Structure ; Physicochemical Processes ; Solubility
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2010-01-08
    Description: G-protein-coupled receptors (GPCRs) are seven-transmembrane proteins that mediate most cellular responses to hormones and neurotransmitters. They are the largest group of therapeutic targets for a broad spectrum of diseases. Recent crystal structures of GPCRs have revealed structural conservation extending from the orthosteric ligand-binding site in the transmembrane core to the cytoplasmic G-protein-coupling domains. In contrast, the extracellular surface (ECS) of GPCRs is remarkably diverse and is therefore an ideal target for the discovery of subtype-selective drugs. However, little is known about the functional role of the ECS in receptor activation, or about conformational coupling of this surface to the native ligand-binding pocket. Here we use NMR spectroscopy to investigate ligand-specific conformational changes around a central structural feature in the ECS of the beta(2) adrenergic receptor: a salt bridge linking extracellular loops 2 and 3. Small-molecule drugs that bind within the transmembrane core and exhibit different efficacies towards G-protein activation (agonist, neutral antagonist and inverse agonist) also stabilize distinct conformations of the ECS. We thereby demonstrate conformational coupling between the ECS and the orthosteric binding site, showing that drugs targeting this diverse surface could function as allosteric modulators with high subtype selectivity. Moreover, these studies provide a new insight into the dynamic behaviour of GPCRs not addressable by static, inactive-state crystal structures.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2805469/" 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/PMC2805469/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bokoch, Michael P -- Zou, Yaozhong -- Rasmussen, Soren G F -- Liu, Corey W -- Nygaard, Rie -- Rosenbaum, Daniel M -- Fung, Juan Jose -- Choi, Hee-Jung -- Thian, Foon Sun -- Kobilka, Tong Sun -- Puglisi, Joseph D -- Weis, William I -- Pardo, Leonardo -- Prosser, R Scott -- Mueller, Luciano -- Kobilka, Brian K -- GM56169/GM/NIGMS NIH HHS/ -- NS028471/NS/NINDS NIH HHS/ -- R01 GM056169/GM/NIGMS NIH HHS/ -- R01 GM056169-13/GM/NIGMS NIH HHS/ -- R21 MH082313/MH/NIMH NIH HHS/ -- R21 MH082313-01A1/MH/NIMH NIH HHS/ -- R37 NS028471/NS/NINDS NIH HHS/ -- R37 NS028471-19/NS/NINDS NIH HHS/ -- England -- Nature. 2010 Jan 7;463(7277):108-12. doi: 10.1038/nature08650.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20054398" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-2 Receptor Agonists ; Adrenergic beta-2 Receptor Antagonists ; Allosteric Regulation/drug effects ; Binding Sites ; Crystallography, X-Ray ; Drug Inverse Agonism ; Ethanolamines/pharmacology ; Formoterol Fumarate ; Humans ; Ligands ; Lysine/analogs & derivatives/metabolism ; Methylation ; Models, Molecular ; Mutant Proteins ; Nuclear Magnetic Resonance, Biomolecular ; Propanolamines/metabolism/pharmacology ; Protein Structure, Tertiary/drug effects ; Receptors, Adrenergic, beta-2/*chemistry/*metabolism ; Static Electricity ; Substrate Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2010-06-11
    Description: Regulation of the expression of the human immunodeficiency virus (HIV) genome is accomplished in large part by controlling transcription elongation. The viral protein Tat hijacks the host cell's RNA polymerase II elongation control machinery through interaction with the positive transcription elongation factor, P-TEFb, and directs the factor to promote productive elongation of HIV mRNA. Here we describe the crystal structure of the Tat.P-TEFb complex containing HIV-1 Tat, human Cdk9 (also known as CDK9), and human cyclin T1 (also known as CCNT1). Tat adopts a structure complementary to the surface of P-TEFb and makes extensive contacts, mainly with the cyclin T1 subunit of P-TEFb, but also with the T-loop of the Cdk9 subunit. The structure provides a plausible explanation for the tolerance of Tat to sequence variations at certain sites. Importantly, Tat induces significant conformational changes in P-TEFb. This finding lays a foundation for the design of compounds that would specifically inhibit the Tat.P-TEFb complex and block HIV replication.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2885016/" 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/PMC2885016/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tahirov, Tahir H -- Babayeva, Nigar D -- Varzavand, Katayoun -- Cooper, Jeffrey J -- Sedore, Stanley C -- Price, David H -- AI074392/AI/NIAID NIH HHS/ -- GM082923/GM/NIGMS NIH HHS/ -- GM35500/GM/NIGMS NIH HHS/ -- P30CA036727/CA/NCI NIH HHS/ -- P41 RR015301/RR/NCRR NIH HHS/ -- P41 RR015301-075443/RR/NCRR NIH HHS/ -- R01 GM035500/GM/NIGMS NIH HHS/ -- R01 GM035500-20/GM/NIGMS NIH HHS/ -- R01 GM035500-21/GM/NIGMS NIH HHS/ -- R01 GM035500-22/GM/NIGMS NIH HHS/ -- R01 GM035500-23/GM/NIGMS NIH HHS/ -- R01 GM035500-24/GM/NIGMS NIH HHS/ -- R01 GM082923/GM/NIGMS NIH HHS/ -- R01 GM082923-01A2/GM/NIGMS NIH HHS/ -- R01 GM082923-02/GM/NIGMS NIH HHS/ -- R01 GM082923-02S1/GM/NIGMS NIH HHS/ -- R21 AI074392/AI/NIAID NIH HHS/ -- R21 AI074392-01A1/AI/NIAID NIH HHS/ -- R21 AI074392-02/AI/NIAID NIH HHS/ -- R33 AI074392/AI/NIAID NIH HHS/ -- R33 AI074392-03/AI/NIAID NIH HHS/ -- RR-15301/RR/NCRR NIH HHS/ -- England -- Nature. 2010 Jun 10;465(7299):747-51. doi: 10.1038/nature09131.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198-7696, USA. ttahirov@unmc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535204" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Binding Sites ; Crystallography, X-Ray ; Cyclin T/chemistry/metabolism ; Cyclin-Dependent Kinase 9/chemistry/metabolism ; Enzyme Activation ; HIV-1/*chemistry ; Humans ; Models, Molecular ; Molecular Sequence Data ; Positive Transcriptional Elongation Factor B/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; tat Gene Products, Human Immunodeficiency Virus/*chemistry/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2010-07-09
    Description: The coupled interplay between activation and inactivation gating is a functional hallmark of K(+) channels. This coupling has been experimentally demonstrated through ion interaction effects and cysteine accessibility, and is associated with a well defined boundary of energetically coupled residues. The structure of the K(+) channel KcsA in its fully open conformation, in addition to four other partial channel openings, richly illustrates the structural basis of activation-inactivation gating. Here, we identify the mechanistic principles by which movements on the inner bundle gate trigger conformational changes at the selectivity filter, leading to the non-conductive C-type inactivated state. Analysis of a series of KcsA open structures suggests that, as a consequence of the hinge-bending and rotation of the TM2 helix, the aromatic ring of Phe 103 tilts towards residues Thr 74 and Thr 75 in the pore-helix and towards Ile 100 in the neighbouring subunit. This allows the network of hydrogen bonds among residues Trp 67, Glu 71 and Asp 80 to destabilize the selectivity filter, allowing entry to its non-conductive conformation. Mutations at position 103 have a size-dependent effect on gating kinetics: small side-chain substitutions F103A and F103C severely impair inactivation kinetics, whereas larger side chains such as F103W have more subtle effects. This suggests that the allosteric coupling between the inner helical bundle and the selectivity filter might rely on straightforward mechanical deformation propagated through a network of steric contacts. Average interactions calculated from molecular dynamics simulations show favourable open-state interaction-energies between Phe 103 and the surrounding residues. We probed similar interactions in the Shaker K(+) channel where inactivation was impaired in the mutant I470A. We propose that side-chain rearrangements at position 103 mechanically couple activation and inactivation in KcsA and a variety of other K(+) channels.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3033755/" 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/PMC3033755/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cuello, Luis G -- Jogini, Vishwanath -- Cortes, D Marien -- Pan, Albert C -- Gagnon, Dominique G -- Dalmas, Olivier -- Cordero-Morales, Julio F -- Chakrapani, Sudha -- Roux, Benoit -- Perozo, Eduardo -- R01 GM057846/GM/NIGMS NIH HHS/ -- R01 GM057846-15/GM/NIGMS NIH HHS/ -- R01 GM062342/GM/NIGMS NIH HHS/ -- R01 GM062342-05/GM/NIGMS NIH HHS/ -- R01-GM57846/GM/NIGMS NIH HHS/ -- R01-GM62342/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Jul 8;466(7303):272-5. doi: 10.1038/nature09136.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20613845" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Bacterial Proteins/*chemistry/genetics/*metabolism ; Cysteine/genetics/metabolism ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; *Ion Channel Gating ; Kinetics ; Models, Molecular ; Molecular Dynamics Simulation ; Phenylalanine/metabolism ; Potassium Channels/*chemistry/genetics/*metabolism ; Protein Conformation ; Shaker Superfamily of Potassium Channels/chemistry/genetics/metabolism ; Streptomyces lividans/*chemistry ; Structure-Activity Relationship
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2010-10-23
    Description: The M2 protein from the influenza A virus, an acid-activated proton-selective channel, has been the subject of numerous conductance, structural, and computational studies. However, little is known at the atomic level about the heart of the functional mechanism for this tetrameric protein, a His(37)-Trp(41) cluster. We report the structure of the M2 conductance domain (residues 22 to 62) in a lipid bilayer, which displays the defining features of the native protein that have not been attainable from structures solubilized by detergents. We propose that the tetrameric His(37)-Trp(41) cluster guides protons through the channel by forming and breaking hydrogen bonds between adjacent pairs of histidines and through specific interactions of the histidines with the tryptophan gate. This mechanism explains the main observations on M2 proton conductance.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3384994/" 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/PMC3384994/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharma, Mukesh -- Yi, Myunggi -- Dong, Hao -- Qin, Huajun -- Peterson, Emily -- Busath, David D -- Zhou, Huan-Xiang -- Cross, Timothy A -- AI023007/AI/NIAID NIH HHS/ -- R01 AI023007/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 22;330(6003):509-12. doi: 10.1126/science.1191750.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20966252" target="_blank"〉PubMed〈/a〉
    Keywords: Histidine/chemistry ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Influenza A virus/*chemistry/physiology ; Ion Channels/*chemistry ; Ion Transport ; Lipid Bilayers ; Models, Molecular ; Nuclear Magnetic Resonance, Biomolecular ; Protein Conformation ; Protein Structure, Tertiary ; *Protons ; Tryptophan/chemistry ; Viral Matrix Proteins/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...