1jd8: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1jd8.gif|left|200px]] | [[Image:1jd8.gif|left|200px]] | ||
<!-- | |||
The line below this paragraph, containing "STRUCTURE_1jd8", creates the "Structure Box" on the page. | |||
You may change the PDB parameter (which sets the PDB file loaded into the applet) | |||
or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |||
or leave the SCENE parameter empty for the default display. | |||
--> | |||
| | {{STRUCTURE_1jd8| PDB=1jd8 | SCENE= }} | ||
| | |||
}} | |||
'''solution structure od lactam analogue DapD of HIV gp41 600-612 loop.''' | '''solution structure od lactam analogue DapD of HIV gp41 600-612 loop.''' | ||
| Line 19: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JD8 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] | ||
[[Category: Briand, J P.]] | [[Category: Briand, J P.]] | ||
[[Category: Cung, M T.]] | [[Category: Cung, M T.]] | ||
| Line 34: | Line 30: | ||
[[Category: Petit, M C.]] | [[Category: Petit, M C.]] | ||
[[Category: Semetey, V.]] | [[Category: Semetey, V.]] | ||
[[Category: | [[Category: Cyclic peptide]] | ||
[[Category: | [[Category: Gp41]] | ||
[[Category: | [[Category: Hiv]] | ||
[[Category: | [[Category: Lactam bond]] | ||
[[Category: | [[Category: Pseudopeptide]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 21:04:53 2008'' | |||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | |||
Revision as of 21:04, 2 May 2008
solution structure od lactam analogue DapD of HIV gp41 600-612 loop.
OverviewOverview
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 StructureAbout this Structure
Full crystallographic information is available from OCA.
ReferenceReference
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 21:04:53 2008