1jdk

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[[Image:1jdk.gif|left|200px]]
[[Image:1jdk.gif|left|200px]]
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{{Structure
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|PDB= 1jdk |SIZE=350|CAPTION= <scene name='initialview01'>1jdk</scene>
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The line below this paragraph, containing "STRUCTURE_1jdk", creates the "Structure Box" on the page.
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|SITE=
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|LIGAND= <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=DAB:2,4-DIAMINOBUTYRIC+ACID'>DAB</scene>
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{{STRUCTURE_1jdk| PDB=1jdk | SCENE= }}
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|RELATEDENTRY=[[1im7|1IM7]], [[1j8n|1J8N]], [[1j8z|1J8Z]], [[1j9v|1J9V]], [[1jar|1JAR]], [[1jc8|1JC8]], [[1jaa|1JAA]], [[1jcp|1JCP]], [[1jd8|1JD8]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jdk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jdk OCA], [http://www.ebi.ac.uk/pdbsum/1jdk PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1jdk RCSB]</span>
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'''solution structure of lactam analogue (EDap) of HIV gp41 600-612 loop.'''
'''solution structure of lactam analogue (EDap) of HIV gp41 600-612 loop.'''
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==About this Structure==
==About this Structure==
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1JDK is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JDK OCA].
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JDK OCA].
==Reference==
==Reference==
Structural and immunological characterisation of heteroclitic peptide analogues corresponding to the 600-612 region of the HIV envelope gp41 glycoprotein., Du AP, Limal D, Semetey V, Dali H, Jolivet M, Desgranges C, Cung MT, Briand JP, Petit MC, Muller S, J Mol Biol. 2002 Oct 25;323(3):503-21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12381305 12381305]
Structural and immunological characterisation of heteroclitic peptide analogues corresponding to the 600-612 region of the HIV envelope gp41 glycoprotein., Du AP, Limal D, Semetey V, Dali H, Jolivet M, Desgranges C, Cung MT, Briand JP, Petit MC, Muller S, J Mol Biol. 2002 Oct 25;323(3):503-21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12381305 12381305]
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[[Category: Protein complex]]
 
[[Category: Briand, J P.]]
[[Category: Briand, J P.]]
[[Category: Cung, M T.]]
[[Category: Cung, M T.]]
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[[Category: Petit, M C.]]
[[Category: Petit, M C.]]
[[Category: Semetey, V.]]
[[Category: Semetey, V.]]
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[[Category: cyclic peptide]]
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[[Category: Cyclic peptide]]
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[[Category: gp41]]
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[[Category: Gp41]]
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[[Category: hiv]]
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[[Category: Hiv]]
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[[Category: lactam bond]]
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[[Category: Lactam bond]]
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[[Category: peptidomimetic]]
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[[Category: Peptidomimetic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 21:05:41 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:32:06 2008''
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Revision as of 18:05, 2 May 2008

Image:1jdk.gif

Template:STRUCTURE 1jdk

solution structure of lactam analogue (EDap) of HIV gp41 600-612 loop.


Overview

The conformational and immunological properties of different analogues corresponding to the 600-612 disulfide loop of the human immunodeficiency virus (HIV) gp41 glycoprotein envelope were studied. Fourteen analogues were designed and synthesised; namely, a series of seven analogues in which the disulfide bond was replaced by a lactam bridge and a series of seven analogues in which one residue of each analogue at a time, was replaced by its corresponding homologised alpha-amino acid (beta(3)-amino acid). In the case of the lactam analogues, the influence of the two possible CO-NH and NH-CO orientations of the lactam bridge as well as the size of the lactam ring was explored. The analogues were tested in ELISA with monoclonal antibodies raised against the 600-612 cyclic parent peptide as well as with sera from HIV-1 infected patients. A structural analysis of the parent and analogue peptides was carried out in dimethyl sulfoxide (DMSO-d(6)) using two-dimensional NMR techniques and molecular dynamics simulations. Comparison of the own conformation of the cyclic analogues with their either strong or weak reactivity with the antibodies reveals structural features that may be correlated with the antibody reactivity. Thus, a close structural similarity, particularly a characteristic orientation of the side-chains of residues Lys606, Leu607 and Ile608 in the loop, was found in certain beta(3)-analogues that were better recognised than the parent peptide by anti-peptide mouse monoclonal antibodies and patients' antibodies.

About this Structure

Full crystallographic information is available from OCA.

Reference

Structural and immunological characterisation of heteroclitic peptide analogues corresponding to the 600-612 region of the HIV envelope gp41 glycoprotein., Du AP, Limal D, Semetey V, Dali H, Jolivet M, Desgranges C, Cung MT, Briand JP, Petit MC, Muller S, J Mol Biol. 2002 Oct 25;323(3):503-21. PMID:12381305 Page seeded by OCA on Fri May 2 21:05:41 2008

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