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  • Articles  (66)
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  • 1
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    Thermodynamics of Rev–RNA Interactions in HIV-1 Rev–RRE Assembly (2015)
    American Chemical Society (ACS)
    Details
    Publication Date: 2015-10-15
    Description: Biochemistry DOI: 10.1021/acs.biochem.5b00876
    Print ISSN: 0006-2960
    Electronic ISSN: 1520-4995
    Topics: Biology , Chemistry and Pharmacology
    Published by American Chemical Society (ACS)
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  • 2
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    Source‐Dependent Amplification of Earthquake Ground Motions in Deep Sedimentary Basins (2019)
    Wiley
    Details
    Publication Date: 2019
    Description: Abstract Deep sedimentary basins amplify long‐period shaking from seismic waves, increasing the seismic hazard for cities sited on such basins. We perform 3‐D simulations of point source earthquakes distributed around the Seattle and Tacoma basins in Washington State to examine the dependence of basin amplification on source azimuth, depth, and earthquake type. For periods between 1 and 10 s, the pattern of amplification is spatially heterogeneous and differs considerably with the source‐to‐site azimuth. For close‐in earthquakes, the greatest basin amplification occurs toward the farside of the basin and ground motions from crustal earthquakes experience greater amplification than those from more vertically incident, deeper intraplate earthquakes. Love and Rayleigh waves form similar spatial patterns for a given source location, although the magnitude of amplification varies. The source dependence of basin amplification is an important factor for seismic hazard assessment, in both the Seattle and Tacoma basins, and by extension for deep sedimentary basins worldwide.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 3
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    Inhibition of antigen-induced lymphocyte proliferation by Tat protein from HIV-1 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: The purified human immunodeficiency virus type-l (HIV-l) Tat protein inhibited lymphocyte proliferation induced by tetanus toxoid or Candida antigens by 66 to 97% at nanomolar concentrations of Tat. In contrast, Tat did not cause a significant reduction of lymphocyte proliferation in response to mitogens such as phytohemagglutinin or pokeweed mitogen. Inhibition was blocked by oxidation of the cysteine-rich region of Tat or by incubation with an antibody to Tat before the assay. A synthetic Tat peptide (residues 1 to 58) also inhibited antigen-stimulated proliferation. Experiments with H9 and U937 cell lines showed that Tat can easily enter both lymphocytes and monocytes. The specific inhibition of antigen-induced lymphocyte proliferation by Tat mimics the effect seen with lymphocytes from HIV-infected individuals and suggests that Tat might directly contribute to the immunosuppression associated with HIV infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Viscidi, R P -- Mayur, K -- Lederman, H M -- Frankel, A D -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1606-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2556795" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/immunology ; Cells, Cultured ; Concanavalin A ; DNA Replication/drug effects ; Gene Products, tat/immunology/*pharmacology ; HIV-1/genetics/*immunology ; HeLa Cells/metabolism ; Humans ; Immunosuppression ; Lymphocyte Activation/*drug effects ; Lymphocytes/drug effects/immunology ; Pokeweed Mitogens ; Promoter Regions, Genetic ; Recombinant Proteins/immunology/pharmacology ; Staphylococcal Protein A ; Trans-Activators/*pharmacology ; Transcriptional Activation ; tat Gene Products, Human Immunodeficiency Virus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Arginine-mediated RNA recognition: the arginine fork (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-05-24
    Description: Short peptides that contain the basic region of the HIV-1 Tat protein bind specifically to a bulged region in TAR RNA. A peptide that contained nine arginines (R9) also bound specifically to TAR, and a mutant Tat protein that contained R9 was fully active for transactivation. In contrast, a peptide that contained nine lysines (K9) bound TAR poorly and the corresponding protein gave only marginal activity. By starting with the K9 mutant and replacing lysine residues with arginines, a single arginine was identified that is required for specific binding and transactivation. Ethylation interference experiments suggest that this arginine contacts two adjacent phosphates at the RNA bulge. Model building suggests that the arginine eta nitrogens and the epsilon nitrogen can form specific networks of hydrogen bonds with adjacent pairs of phosphates and that these arrangements are likely to occur near RNA loops and bulges and not within double-stranded A-form RNA. Thus, arginine side chains may be commonly used to recognize specific RNA structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calnan, B J -- Tidor, B -- Biancalana, S -- Hudson, D -- Frankel, A D -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1991 May 24;252(5009):1167-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1709522" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Arginine ; Base Sequence ; Cloning, Molecular ; Gene Products, tat/genetics/*metabolism ; Genes, tat ; HIV Long Terminal Repeat/physiology ; HIV-1/genetics/*metabolism ; Hydrogen Bonding ; Membrane Proteins/genetics/metabolism ; Molecular Sequence Data ; Mutagenesis, Insertional ; Nucleic Acid Conformation ; Peptides/metabolism ; Protein Binding ; RNA/genetics/*metabolism ; Transcriptional Activation ; tat Gene Products, Human Immunodeficiency Virus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Conformation of the TAR RNA-arginine complex by NMR spectroscopy (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: The messenger RNAs of human immunodeficiency virus-1 (HIV-1) have an RNA hairpin structure, TAR, at their 5' ends that contains a six-nucleotide loop and a three-nucleotide bulge. The conformations of TAR RNA and of TAR with an arginine analog specifically bound at the binding site for the viral protein, Tat, were characterized by nuclear magnetic resonance (NMR) spectroscopy. Upon arginine binding, the bulge changes conformation, and essential nucleotides for binding, U23 and A27.U38, form a base-triple interaction that stabilizes arginine hydrogen bonding to G26 and phosphates. Specificity in the arginine-TAR interaction appears to be derived largely from the structure of the RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puglisi, J D -- Tan, R -- Calnan, B J -- Frankel, A D -- Williamson, J R -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):76-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621097" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/*metabolism ; Base Sequence ; Binding Sites ; Gene Products, tat/metabolism ; HIV-1/*genetics ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy/methods ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Messenger/*chemistry/metabolism ; RNA, Viral/*chemistry/metabolism ; RNA-Binding Proteins/*chemistry/metabolism ; tat Gene Products, Human Immunodeficiency Virus
    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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  • 6
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    The 2002 Denali fault earthquake, Alaska: a large magnitude, slip-partitioned event (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-17
    Description: The MW (moment magnitude) 7.9 Denali fault earthquake on 3 November 2002 was associated with 340 kilometers of surface rupture and was the largest strike-slip earthquake in North America in almost 150 years. It illuminates earthquake mechanics and hazards of large strike-slip faults. It began with thrusting on the previously unrecognized Susitna Glacier fault, continued with right-slip on the Denali fault, then took a right step and continued with right-slip on the Totschunda fault. There is good correlation between geologically observed and geophysically inferred moment release. The earthquake produced unusually strong distal effects in the rupture propagation direction, including triggered seismicity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eberhart-Phillips, Donna -- Haeussler, Peter J -- Freymueller, Jeffrey T -- Frankel, Arthur D -- Rubin, Charles M -- Craw, Patricia -- Ratchkovski, Natalia A -- Anderson, Greg -- Carver, Gary A -- Crone, Anthony J -- Dawson, Timothy E -- Fletcher, Hilary -- Hansen, Roger -- Harp, Edwin L -- Harris, Ruth A -- Hill, David P -- Hreinsdottir, Sigrun -- Jibson, Randall W -- Jones, Lucile M -- Kayen, Robert -- Keefer, David K -- Larsen, Christopher F -- Moran, Seth C -- Personius, Stephen F -- Plafker, George -- Sherrod, Brian -- Sieh, Kerry -- Sitar, Nicholas -- Wallace, Wesley K -- New York, N.Y. -- Science. 2003 May 16;300(5622):1113-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12750512" target="_blank"〉PubMed〈/a〉
    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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  • 7
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    [ASAP] Discovery of a Branched Peptide That Recognizes the Rev Response Element (RRE) RNA and Blocks HIV-1 Replication (2018)
    American Chemical Society (ACS)
    Details
    Publication Date: 2018-10-20
    Description: Journal of Medicinal Chemistry DOI: 10.1021/acs.jmedchem.8b01076
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society (ACS)
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  • 8
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    Global landscape of HIV-human protein complexes (2011)
    Nature Publishing Group (NPG)
    Details
    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
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 9
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    Solution structure of a bovine immunodeficiency virus Tat-TAR peptide-RNA complex (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-11-17
    Description: The Tat protein of bovine immunodeficiency virus (BIV) binds to its target RNA, TAR, and activates transcription. A 14-amino acid arginine-rich peptide corresponding to the RNA-binding domain of BIV Tat binds specifically to BIV TAR, and biochemical and in vivo experiments have identified the amino acids and nucleotides required for binding. The solution structure of the RNA-peptide complex has now been determined by nuclear magnetic resonance spectroscopy. TAR forms a virtually continuous A-form helix with two unstacked bulged nucleotides. The peptide adopts a beta-turn conformation and sits in the major groove of the RNA. Specific contacts are apparent between critical amino acids in the peptide and bases and phosphates in the RNA. The structure is consistent with all biochemical data and demonstrates ways in which proteins can recognize the major groove of RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puglisi, J D -- Chen, L -- Blanchard, S -- Frankel, A D -- AI08591/AI/NIAID NIH HHS/ -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1200-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, Santa Cruz 95064, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502045" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Composition ; Base Sequence ; Gene Products, tat/*chemistry/metabolism ; Hydrogen Bonding ; Immunodeficiency Virus, Bovine/*chemistry ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Conformation ; Protein Structure, Secondary ; RNA, Viral/*chemistry/metabolism
    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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  • 10
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    Alpha helix-RNA major groove recognition in an HIV-1 rev peptide-RRE RNA complex (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-09-13
    Description: The solution structure of a human immunodeficiency virus type-1 (HIV-1) Rev peptide bound to stem-loop IIB of the Rev response element (RRE) RNA was solved by nuclear magnetic resonance spectroscopy. The Rev peptide has an alpha-helical conformation and binds in the major groove of the RNA near a purine-rich internal loop. Several arginine side chains make base-specific contacts, and an asparagine residue contacts a G.A base pair. The phosphate backbone adjacent to a G.G base pair adopts an unusual structure that allows the peptide to access a widened major groove. The structure formed by the two purine-purine base pairs of the RRE creates a distinctive binding pocket that the peptide can use for specific recognition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Battiste, J L -- Mao, H -- Rao, N S -- Tan, R -- Muhandiram, D R -- Kay, L E -- Frankel, A D -- Williamson, J R -- GM-08344/GM/NIGMS NIH HHS/ -- GM-39589/GM/NIGMS NIH HHS/ -- GM-53320/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Sep 13;273(5281):1547-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8703216" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/chemistry ; Asparagine/chemistry ; Base Composition ; Base Sequence ; *DNA-Binding Proteins ; Fungal Proteins/chemistry ; Gene Products, rev/*chemistry/*metabolism ; *Genes, env ; HIV-1/*chemistry ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Protein Kinases/chemistry ; *Protein Structure, Secondary ; RNA, Viral/*chemistry/genetics/metabolism ; *Saccharomyces cerevisiae Proteins ; Threonine/chemistry ; rev Gene Products, Human Immunodeficiency Virus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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