4dvx

From Proteopedia

(Difference between revisions)

Revision as of 09:40, 4 August 2016

Crystal structure of clade A/E 93TH057 HIV-1 gp120 core in complex with MAE-II-188

Structural highlights

4dvx is a 2 chain structure with sequence from 9hiv1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	4dvr, 4dvs, 4dvt, 4dvu, 4dvv, 4dvw
Gene:	env, HIV-1 Env (9HIV1)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[Q0ED31_9HIV1] The envelope glyprotein gp160 precursor down-modulates cell surface CD4 antigen by interacting with it in the endoplasmic reticulum and blocking its transport to the cell surface (By similarity).[RuleBase:RU004292][SAAS:SAAS000328_004_020447] The gp120-gp41 heterodimer allows rapid transcytosis of the virus through CD4 negative cells such as simple epithelial monolayers of the intestinal, rectal and endocervical epithelial barriers. Both gp120 and gp41 specifically recognize glycosphingolipids galactosyl-ceramide (GalCer) or 3' sulfo-galactosyl-ceramide (GalS) present in the lipid rafts structures of epithelial cells. Binding to these alternative receptors allows the rapid transcytosis of the virus through the epithelial cells. This transcytotic vesicle-mediated transport of virions from the apical side to the basolateral side of the epithelial cells does not involve infection of the cells themselves (By similarity).

Publication Abstract from PubMed

Efforts to develop therapeutic agents that inhibit HIV-1 entry have led to the identification of several small molecule leads. One of the most promising is the NBD series, which binds within a conserved gp120 cavity and possesses para-halogen substituted aromatic rings, a central oxalamide linker, and a tetramethylpiperidine moiety. In this study, we characterized structurally the interactions of four NBD analogues containing meta-fluoro substitution on the aromatic ring and various heterocyclic ring replacements of the tetramethylpiperidine group. The addition of a meta-fluorine to the aromatic ring improved surface complementarity and did not alter the position of the analogue relative to gp120. By contrast, heterocyclic ring replacements of the tetramethylpiperidine moiety exhibited diverse positioning and interactions with the vestibule of the gp120 cavity. Overall, the biological profile of NBD-congeners was modulated by ligand interactions with the gp120-cavity vestibule. Herein, six co-crystal structures of NBD-analogues with gp120 provide a structural framework for continued small molecule-entry inhibitor optimization.

Crystal Structures of HIV-1 gp120 Envelope Glycoprotein in Complex with NBD Analogues That Target the CD4-Binding Site.,Kwon YD, Lalonde JM, Yang Y, Elban MA, Sugawara A, Courter JR, Jones DM, Smith AB 3rd, Debnath AK, Kwong PD PLoS One. 2014 Jan 28;9(1):e85940. doi: 10.1371/journal.pone.0085940. eCollection, 2014. PMID:24489681^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Kwon YD, Lalonde JM, Yang Y, Elban MA, Sugawara A, Courter JR, Jones DM, Smith AB 3rd, Debnath AK, Kwong PD. Crystal Structures of HIV-1 gp120 Envelope Glycoprotein in Complex with NBD Analogues That Target the CD4-Binding Site. PLoS One. 2014 Jan 28;9(1):e85940. doi: 10.1371/journal.pone.0085940. eCollection, 2014. PMID:24489681 doi:http://dx.doi.org/10.1371/journal.pone.0085940

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4dvx"

@@ Line 1: / Line 1: @@
 ==Crystal structure of clade A/E 93TH057 HIV-1 gp120 core in complex with MAE-II-188==
 <StructureSection load='4dvx' size='340' side='right' caption='[[4dvx]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4dvr|4dvr]], [[4dvs|4dvs]], [[4dvt|4dvt]], [[4dvu|4dvu]], [[4dvv|4dvv]], [[4dvw|4dvw]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">env, HIV-1 Env ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11676 9HIV1])</td></tr>
-<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=4dvx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dvx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4dvx RCSB], [http://www.ebi.ac.uk/pdbsum/4dvx PDBsum]</span></td></tr>
+<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=4dvx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dvx OCA], [http://pdbe.org/4dvx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4dvx RCSB], [http://www.ebi.ac.uk/pdbsum/4dvx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4dvx ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4dvx" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4dvx

From Proteopedia

Revision as of 09:40, 4 August 2016

Crystal structure of clade A/E 93TH057 HIV-1 gp120 core in complex with MAE-II-188

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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