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  • Lunar and Planetary Science and Exploration  (441)
  • Models, Molecular  (263)
  • 2010-2014  (704)
  • 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/ -- 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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
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  • 2
    Publication Date: 2014-11-22
    Description: The Rocknest aeolian deposit is similar to aeolian features analyzed by the Mars Exploration Rovers (MER) Spirit and Opportunity. The fraction of sand 〈150 micron in size contains approx. 55% crystalline material consistent with a basaltic heritage, and approx. 45% X-ray amorphous material. The amorphous component of Rocknest is Fe-rich and Si-poor, and is the host of the volatiles (H2O, O2, SO2, CO2, and Cl) detected by the Surface Analysis at Mars (SAM) instrument and of the fine-grained nanophase oxide (npOx) component first described from basaltic soils analyzed by MER. The similarity between soils and aeolian materials analyzed at Gusev crater, Meridiani Planum and Gale crater implies locally sourced, globally similar basaltic materials, or globally and regionally sourced basaltic components deposited locally at all three locations.
    Keywords: Lunar and Planetary Science and Exploration
    Type: ARC-E-DAA-TN11260
    Format: application/pdf
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  • 3
    Publication Date: 2011-02-05
    Description: X-ray crystallography provides the vast majority of macromolecular structures, but the success of the method relies on growing crystals of sufficient size. In conventional measurements, the necessary increase in X-ray dose to record data from crystals that are too small leads to extensive damage before a diffraction signal can be recorded. It is particularly challenging to obtain large, well-diffracting crystals of membrane proteins, for which fewer than 300 unique structures have been determined despite their importance in all living cells. Here we present a method for structure determination where single-crystal X-ray diffraction 'snapshots' are collected from a fully hydrated stream of nanocrystals using femtosecond pulses from a hard-X-ray free-electron laser, the Linac Coherent Light Source. We prove this concept with nanocrystals of photosystem I, one of the largest membrane protein complexes. More than 3,000,000 diffraction patterns were collected in this study, and a three-dimensional data set was assembled from individual photosystem I nanocrystals ( approximately 200 nm to 2 mum in size). We mitigate the problem of radiation damage in crystallography by using pulses briefer than the timescale of most damage processes. This offers a new approach to structure determination of macromolecules that do not yield crystals of sufficient size for studies using conventional radiation sources or are particularly sensitive to radiation damage.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3429598/" 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/PMC3429598/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapman, Henry N -- Fromme, Petra -- Barty, Anton -- White, Thomas A -- Kirian, Richard A -- Aquila, Andrew -- Hunter, Mark S -- Schulz, Joachim -- DePonte, Daniel P -- Weierstall, Uwe -- Doak, R Bruce -- Maia, Filipe R N C -- Martin, Andrew V -- Schlichting, Ilme -- Lomb, Lukas -- Coppola, Nicola -- Shoeman, Robert L -- Epp, Sascha W -- Hartmann, Robert -- Rolles, Daniel -- Rudenko, Artem -- Foucar, Lutz -- Kimmel, Nils -- Weidenspointner, Georg -- Holl, Peter -- Liang, Mengning -- Barthelmess, Miriam -- Caleman, Carl -- Boutet, Sebastien -- Bogan, Michael J -- Krzywinski, Jacek -- Bostedt, Christoph -- Bajt, Sasa -- Gumprecht, Lars -- Rudek, Benedikt -- Erk, Benjamin -- Schmidt, Carlo -- Homke, Andre -- Reich, Christian -- Pietschner, Daniel -- Struder, Lothar -- Hauser, Gunter -- Gorke, Hubert -- Ullrich, Joachim -- Herrmann, Sven -- Schaller, Gerhard -- Schopper, Florian -- Soltau, Heike -- Kuhnel, Kai-Uwe -- Messerschmidt, Marc -- Bozek, John D -- Hau-Riege, Stefan P -- Frank, Matthias -- Hampton, Christina Y -- Sierra, Raymond G -- Starodub, Dmitri -- Williams, Garth J -- Hajdu, Janos -- Timneanu, Nicusor -- Seibert, M Marvin -- Andreasson, Jakob -- Rocker, Andrea -- Jonsson, Olof -- Svenda, Martin -- Stern, Stephan -- Nass, Karol -- Andritschke, Robert -- Schroter, Claus-Dieter -- Krasniqi, Faton -- Bott, Mario -- Schmidt, Kevin E -- Wang, Xiaoyu -- Grotjohann, Ingo -- Holton, James M -- Barends, Thomas R M -- Neutze, Richard -- Marchesini, Stefano -- Fromme, Raimund -- Schorb, Sebastian -- Rupp, Daniela -- Adolph, Marcus -- Gorkhover, Tais -- Andersson, Inger -- Hirsemann, Helmut -- Potdevin, Guillaume -- Graafsma, Heinz -- Nilsson, Bjorn -- Spence, John C H -- 1R01GM095583-01/GM/NIGMS NIH HHS/ -- 1U54GM094625-01/GM/NIGMS NIH HHS/ -- R01 GM095583/GM/NIGMS NIH HHS/ -- U54 GM094599/GM/NIGMS NIH HHS/ -- U54 GM094625/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Feb 3;470(7332):73-7. doi: 10.1038/nature09750.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany. henry.chapman@desy.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21293373" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography, X-Ray/instrumentation/*methods ; Lasers ; Models, Molecular ; Nanoparticles/*chemistry ; Nanotechnology/instrumentation/*methods ; Photosystem I Protein Complex/*chemistry ; Protein Conformation ; Time Factors ; X-Rays
    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: 2012-07-18
    Description: Amyotrophic lateral sclerosis (ALS) is a late-onset neurodegenerative disorder resulting from motor neuron death. Approximately 10% of cases are familial (FALS), typically with a dominant inheritance mode. Despite numerous advances in recent years, nearly 50% of FALS cases have unknown genetic aetiology. Here we show that mutations within the profilin 1 (PFN1) gene can cause FALS. PFN1 is crucial for the conversion of monomeric (G)-actin to filamentous (F)-actin. Exome sequencing of two large ALS families showed different mutations within the PFN1 gene. Further sequence analysis identified 4 mutations in 7 out of 274 FALS cases. Cells expressing PFN1 mutants contain ubiquitinated, insoluble aggregates that in many cases contain the ALS-associated protein TDP-43. PFN1 mutants also display decreased bound actin levels and can inhibit axon outgrowth. Furthermore, primary motor neurons expressing mutant PFN1 display smaller growth cones with a reduced F/G-actin ratio. These observations further document that cytoskeletal pathway alterations contribute to ALS pathogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3575525/" 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/PMC3575525/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Chi-Hong -- Fallini, Claudia -- Ticozzi, Nicola -- Keagle, Pamela J -- Sapp, Peter C -- Piotrowska, Katarzyna -- Lowe, Patrick -- Koppers, Max -- McKenna-Yasek, Diane -- Baron, Desiree M -- Kost, Jason E -- Gonzalez-Perez, Paloma -- Fox, Andrew D -- Adams, Jenni -- Taroni, Franco -- Tiloca, Cinzia -- Leclerc, Ashley Lyn -- Chafe, Shawn C -- Mangroo, Dev -- Moore, Melissa J -- Zitzewitz, Jill A -- Xu, Zuo-Shang -- van den Berg, Leonard H -- Glass, Jonathan D -- Siciliano, Gabriele -- Cirulli, Elizabeth T -- Goldstein, David B -- Salachas, Francois -- Meininger, Vincent -- Rossoll, Wilfried -- Ratti, Antonia -- Gellera, Cinzia -- Bosco, Daryl A -- Bassell, Gary J -- Silani, Vincenzo -- Drory, Vivian E -- Brown, Robert H Jr -- Landers, John E -- 1R01NS050557/NS/NINDS NIH HHS/ -- 1R01NS065847/NS/NINDS NIH HHS/ -- R01 NS050557/NS/NINDS NIH HHS/ -- RC2 NS070342/NS/NINDS NIH HHS/ -- RC2-NS070-342/NS/NINDS NIH HHS/ -- T32 GM007754/GM/NIGMS NIH HHS/ -- U01 NS052225/NS/NINDS NIH HHS/ -- UL1 TR000454/TR/NCATS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2012 Aug 23;488(7412):499-503. doi: 10.1038/nature11280.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22801503" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Amino Acid Sequence ; Amyotrophic Lateral Sclerosis/diagnosis/*genetics/metabolism/*pathology ; Animals ; Axons/metabolism/pathology ; Cells, Cultured ; European Continental Ancestry Group/genetics ; Exome/genetics ; Female ; Genetic Predisposition to Disease/*genetics ; Growth Cones/metabolism ; High-Throughput Nucleotide Sequencing ; Humans ; Jews/genetics ; Male ; Mice ; Models, Molecular ; Molecular Sequence Data ; Motor Neurons/cytology/metabolism ; Mutant Proteins/genetics/*metabolism ; Mutation/*genetics ; Pedigree ; Profilins/*genetics/*metabolism ; Protein Conformation ; Ubiquitination
    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: 2019-07-13
    Description: The National Aeronautics and Space Administration s Human Spaceflight Architecture Team (HAT) has been developing a preliminary Destination Mission Concept (DMC) to assess how a human orbital mission to one or both of the Martian moons, Phobos and Deimos, might be conducted as a follow-on to a human mission to a near-Earth asteroid (NEA) and as a possible preliminary step prior to a human landing on Mars. The HAT Mars-Phobos-Deimos (MPD) mission also permits the teleoperation of robotic systems by the crew while in the Mars system. The DMC development activity provides an initial effort to identify the science and exploration objectives and investigate the capabilities and operations concepts required for a human orbital mission to the Mars system. In addition, the MPD Team identified potential synergistic opportunities via prior exploration of other destinations currently under consideration.
    Keywords: Lunar and Planetary Science and Exploration
    Type: JSC-CN-26565 , Concepts and Approaches for Mars Exploration; Jun 12, 2012 - Jun 14, 2012; Houston, TX; United States
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  • 6
    Publication Date: 2019-07-13
    Description: The Curiosity rover investigated the mineralogy of the Sheepbed mudstone member of the Yellowknife Bay formation in Gale crater. Data from the Chemistry and Mineralogy (CheMin) X-ray diffractometer (XRD) helped identify phyllosilicates in the two drilled samples, John Klein and Cumberland. These patterns showed peaks at low angles, consistent with (001) peaks in 2:1 swelling phyllosilicates [1]. Evolved gas analyses (EGA) by the Sample Analysis at Mars (SAM) instrument of these samples confirmed the presence of phyllosilicates through the release of H2O at high temperatures, consistent with dehydroxylation of octahedral OH in phyllosilicates [2]. CheMin data for the phyllosilicates at John Klein and Cumberland show that they are structurally similar in that their (02l) peaks are near 22.5 deg 2theta, suggesting both samples contain trioctahedral 2:1 phyllosilicates [1]. However, the positions of the (001) peaks differ: the phyllosilicate at John Klein has its (001) peak at 10 Angstroms, whereas the phyllosilicate at Cumberland has an (001) peak at 14 Angstroms. Such differences in (001) dspacings can be ascribed to the type of cation in the interlayer site [3]. For example, large monovalent cations (e.g., K(+)) have low hydration energies and readily lose their H2O of hydration, whereas small divalent cations (e.g., Mg(2+)) have high energies of hydration and retain H2O in the phyllosilicate interlayers [3,4]. The goal of this study is to determine whether differences in the interlayer cation composition can explain the CheMin data from John Klein and Cumberland and to use this knowledge to better understand phyllosilicate formation mechanisms.
    Keywords: Lunar and Planetary Science and Exploration
    Type: JSC-CN-30371 , Lunar and Planetary Science Conference; Mar 17, 2014 - Mar 21, 2014; The Woodlands, TX; United States
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  • 7
    Publication Date: 2014-09-16
    Description: The Ras-like GTPases RalA and RalB are important drivers of tumour growth and metastasis. Chemicals that block Ral function would be valuable as research tools and for cancer therapeutics. Here we used protein structure analysis and virtual screening to identify drug-like molecules that bind to a site on the GDP-bound form of Ral. The compounds RBC6, RBC8 and RBC10 inhibited the binding of Ral to its effector RALBP1, as well as inhibiting Ral-mediated cell spreading of murine embryonic fibroblasts and anchorage-independent growth of human cancer cell lines. The binding of the RBC8 derivative BQU57 to RalB was confirmed by isothermal titration calorimetry, surface plasmon resonance and (1)H-(15)N transverse relaxation-optimized spectroscopy (TROSY) NMR spectroscopy. RBC8 and BQU57 show selectivity for Ral relative to the GTPases Ras and RhoA and inhibit tumour xenograft growth to a similar extent to the depletion of Ral using RNA interference. Our results show the utility of structure-based discovery for the development of therapeutics for Ral-dependent cancers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4351747/" 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/PMC4351747/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, Chao -- Liu, Degang -- Li, Liwei -- Wempe, Michael F -- Guin, Sunny -- Khanna, May -- Meier, Jeremy -- Hoffman, Brenton -- Owens, Charles -- Wysoczynski, Christina L -- Nitz, Matthew D -- Knabe, William E -- Ahmed, Mansoor -- Brautigan, David L -- Paschal, Bryce M -- Schwartz, Martin A -- Jones, David N M -- Ross, David -- Meroueh, Samy O -- Theodorescu, Dan -- CA075115/CA/NCI NIH HHS/ -- CA091846/CA/NCI NIH HHS/ -- CA104106/CA/NCI NIH HHS/ -- GM47214/GM/NIGMS NIH HHS/ -- P01 CA104106/CA/NCI NIH HHS/ -- P30 CA044579/CA/NCI NIH HHS/ -- P30 CA046934/CA/NCI NIH HHS/ -- P50 CA091846/CA/NCI NIH HHS/ -- R01 CA075115/CA/NCI NIH HHS/ -- R01 CA143971/CA/NCI NIH HHS/ -- T32 GM007635/GM/NIGMS NIH HHS/ -- UL1 TR001082/TR/NCATS NIH HHS/ -- UL1TR001082/TR/NCATS NIH HHS/ -- England -- Nature. 2014 Nov 20;515(7527):443-7. doi: 10.1038/nature13713. Epub 2014 Sep 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, University of Colorado, Aurora, Colorado 80045, USA. ; Department of Biochemistry, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA. ; Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado 80045, USA. ; Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia 22908, USA. ; Department of Pharmacology, University of Colorado, Aurora, Colorado 80045, USA. ; Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908, USA. ; 1] Department of Cardiology, Yale University, New Haven, Connecticut 06511, USA [2] Department of Cell Biology, Yale University, New Haven, Connecticut 06511, USA. ; Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia 22908, USA. ; 1] Department of Biochemistry, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA [2] Department of Chemistry and Chemical Biology, Indiana University - Purdue University, Indianapolis, Indiana 46202, USA. ; 1] Department of Surgery, University of Colorado, Aurora, Colorado 80045, USA [2] Department of Pharmacology, University of Colorado, Aurora, Colorado 80045, USA [3] University of Colorado Comprehensive Cancer Center, Aurora, Colorado 80045, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25219851" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/metabolism ; Animals ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Computer Simulation ; *Drug Screening Assays, Antitumor ; Female ; GTPase-Activating Proteins/metabolism ; Humans ; Mice ; Models, Molecular ; *Molecular Targeted Therapy ; Neoplasms/drug therapy/enzymology/metabolism/pathology ; Protein Binding/drug effects ; Signal Transduction/drug effects ; Small Molecule Libraries/*chemistry/*pharmacology ; Substrate Specificity ; Xenograft Model Antitumor Assays ; ral GTP-Binding Proteins/*antagonists & inhibitors/chemistry/metabolism ; ras Proteins/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
    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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  • 9
    Publication Date: 2019-07-13
    Description: Recent discoveries by the Mars Exploration Rovers, Mars Express, Mars Odyssey, and Mars Reconnaissance Orbiter spacecraft include multiple, tantalizing astrobiological targets representing both past and present environments on Mars. The most desirable path to Mars Sample Return (MSR) would be to collect and return samples from that site which provides the clearest examples of the variety of rock types considered a high priority for sample return (pristine igneous, sedimentary, and hydrothermal). Here we propose an MSR architecture in which the next steps (potentially launched in 2018) would entail a series of smaller missions, including caching, to multiple landing sites to verify the presence of high priority sample return targets through in situ analyses. This alternative architecture to one flagship-class sample caching mission to a single site would preserve a direct path to MSR as stipulated by the Planetary Decadal Survey, while permitting investigation of diverse deposit types and providing comparison of the site of returned samples to other aqueous environments on early Mars
    Keywords: Lunar and Planetary Science and Exploration
    Type: JSC-CN-26522 , Mars Exploration Meeting; Jun 12, 2012 - Jun 14, 2012; Houston, TX; United States
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  • 10
    Publication Date: 2019-07-13
    Description: Remote sensing observations meet some limitations when used to study the bulk atmospheric composition of the giant planets of our solar system. A remarkable example of the superiority of in situ probe measurements is illustratedby the exploration of Jupiter, where key measurements such as the determination of the noble gases abundances and the precise measurement of the helium mixing ratio have only been made available through in situ measurements by the Galileo probe. This paper describes the main scienti-c goals to be addressed by the future in situ exploration of Saturn placing the Galileo probe exploration of Jupiter in a broader context and before the future probe exploration of the more remote ice giants. In situ exploration of Saturn's atmosphere addresses two broad themes that are discussedthroughout this paper : rst, the formation history of our solar system and second, the processes at play in planetary atmospheres. In this context, we detail the reasons why measurements of Saturn's bulk elemental and isotopiccomposition would place important constraints on the volatile reservoirs in the protosolar nebula. We also show that the in situ measurement of CO (or any other disequilibrium species that is depleted by reaction with water) in Saturn's upper troposphere may help constraining its bulk OH ratio. We compare predictions of Jupiter and Saturn's bulk compositions from different formation scenarios, and highlight the key measurements required to distinguish competing theories to shed light on giant planet formation as a common process in planetary systems with potential applications to mostextrasolar systems. In situ measurements of Saturn's stratospheric and tropospheric dynamics, chemistry and cloud-forming processes will provide access to phenomena unreachable to remote sensing studies. Dierent mission architectures are envisaged, which would benet from strong international collaborations, all based on an entry probe that would descend through Saturn's stratosphere and troposphere under parachute down to a minimum of 10 bars of atmospheric pressure. We rally discuss the science payload required on a Saturn probe to match the measurement requirements.
    Keywords: Lunar and Planetary Science and Exploration
    Type: GSFC-E-DAA-TN19065 , Planetary and Space Sciences Journal; 104; A; 29-47
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