1rpc

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[[Image:1rpc.png|left|200px]]
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==SOLUTION STRUCTURE OF RP 71955, A NEW 21 AMINO ACID TRICYCLIC PEPTIDE ACTIVE AGAINST HIV-1 VIRUS==
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<StructureSection load='1rpc' size='340' side='right' caption='[[1rpc]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1rpc]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Actinomycete_sp9440 Actinomycete sp9440]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RPC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1RPC FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1rpb|1rpb]]</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1rpc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rpc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1rpc RCSB], [http://www.ebi.ac.uk/pdbsum/1rpc PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The structure of RP 71955, a new tricyclic 21 amino acid peptide active against human immunodeficiency virus 1, was determined. Its amino acid composition was inferred from the results of fast atom bombardment mass spectrometry, nuclear magnetic resonance, Raman spectroscopy, and amino acid analysis. Its sequence could not be determined classically, using Edman degradation, given the lack of a free terminal NH2. It was deduced from the interpretation of interresidue nuclear Overhauser effects and confirmed by the sequencing of peptides obtained by limited chemical hydrolysis. It was found to be CLGIGSCNDFAGCGYAVVCFW. An internal amide bond between the NH2 of C1 and the gamma-COOH of D9 was observed, as well as two disulfide bridges, one between C1 and C13 and one between C7 and C19. The three-dimensional structure of RP 71955 was determined from nuclear magnetic resonance derived constraints using distance geometry, restrained molecular dynamics, nuclear Overhauser effect back calculation, and an iterative refinement using a full relaxation matrix approach. Analogies between the structure of RP 71955 and some functional domains of gp41, the transmembrane protein of human immunodeficiency virus 1, suggest hypotheses concerning the mode of action of RP 71955.
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{{STRUCTURE_1rpc| PDB=1rpc | SCENE= }}
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Solution structure of RP 71955, a new 21 amino acid tricyclic peptide active against HIV-1 virus.,Frechet D, Guitton JD, Herman F, Faucher D, Helynck G, Monegier du Sorbier B, Ridoux JP, James-Surcouf E, Vuilhorgne M Biochemistry. 1994 Jan 11;33(1):42-50. PMID:8286361<ref>PMID:8286361</ref>
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===SOLUTION STRUCTURE OF RP 71955, A NEW 21 AMINO ACID TRICYCLIC PEPTIDE ACTIVE AGAINST HIV-1 VIRUS===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_8286361}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1rpc]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Actinomycete_sp9440 Actinomycete sp9440]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RPC OCA].
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</StructureSection>
[[Category: Actinomycete sp9440]]
[[Category: Actinomycete sp9440]]
[[Category: Faucher, D.]]
[[Category: Faucher, D.]]

Revision as of 08:33, 8 October 2014

SOLUTION STRUCTURE OF RP 71955, A NEW 21 AMINO ACID TRICYCLIC PEPTIDE ACTIVE AGAINST HIV-1 VIRUS

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