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  • 1
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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
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Structure of the A site of Escherichia coli 16S ribosomal RNA complexed with an aminoglycoside antibiotic (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-22
    Description: Aminoglycoside antibiotics that bind to 30S ribosomal A-site RNA cause misreading of the genetic code and inhibit translocation. The aminoglycoside antibiotic paromomycin binds specifically to an RNA oligonucleotide that contains the 30S subunit A site, and the solution structure of the RNA-paromomycin complex was determined by nuclear magnetic resonance spectroscopy. The antibiotic binds in the major groove of the model A-site RNA within a pocket created by an A-A base pair and a single bulged adenine. Specific interactions occur between aminoglycoside chemical groups important for antibiotic activity and conserved nucleotides in the RNA. The structure explains binding of diverse aminoglycosides to the ribosome, their specific activity against prokaryotic organisms, and various resistance mechanisms, and provides insight into ribosome function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fourmy, D -- Recht, M I -- Blanchard, S C -- Puglisi, J D -- GM51266-01A1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1367-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, Center for Molecular Biology of RNA, University of California, Santa Cruz, CA 95064, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8910275" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/chemistry/*metabolism/pharmacology ; Base Composition ; Binding Sites ; Escherichia coli/drug effects/*genetics ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy ; Methylation ; Models, Molecular ; *Nucleic Acid Conformation ; Oligoribonucleotides/chemistry/metabolism ; Paromomycin/chemistry/*metabolism/pharmacology ; RNA, Bacterial/*chemistry/metabolism ; RNA, Ribosomal, 16S/*chemistry/metabolism ; Ribosomes/metabolism
    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)
    Location Call Number Expected Availability
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