|
|
| Line 1: |
Line 1: |
|
| |
|
| ==Crystal structure of HIV-1 JR-FL gp120 core protein containing the third variable region (V3) complexed with CD4 and the X5 antibody== | | ==== |
| <StructureSection load='2b4c' size='340' side='right' caption='[[2b4c]], [[Resolution|resolution]] 3.30Å' scene=''> | | <StructureSection load='2b4c' size='340' side='right'caption='[[2b4c]]' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[2b4c]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/9hiv1 9hiv1] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2B4C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2B4C FirstGlance]. <br> | | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=NDG:2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE'>NDG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=XYL:D-XYLITOL'>XYL</scene></td></tr> | | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2b4c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2b4c OCA], [https://pdbe.org/2b4c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2b4c RCSB], [https://www.ebi.ac.uk/pdbsum/2b4c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2b4c ProSAT]</span></td></tr> |
| <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=2b4c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2b4c OCA], [http://pdbe.org/2b4c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2b4c RCSB], [http://www.ebi.ac.uk/pdbsum/2b4c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2b4c ProSAT]</span></td></tr> | |
| </table> | | </table> |
| == Function ==
| |
| [[http://www.uniprot.org/uniprot/CD4_HUMAN CD4_HUMAN]] Accessory protein for MHC class-II antigen/T-cell receptor interaction. May regulate T-cell activation. Induces the aggregation of lipid rafts.
| |
| == Evolutionary Conservation == | | == Evolutionary Conservation == |
| [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Check<jmol> | | Check<jmol> |
| <jmolCheckbox> | | <jmolCheckbox> |
| <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/b4/2b4c_consurf.spt"</scriptWhenChecked> | | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/b4/2b4c_consurf.spt"</scriptWhenChecked> |
| <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> |
| <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
| Line 20: |
Line 16: |
| </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2b4c ConSurf]. | | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2b4c ConSurf]. |
| <div style="clear:both"></div> | | <div style="clear:both"></div> |
| <div style="background-color:#fffaf0;">
| |
| == Publication Abstract from PubMed ==
| |
| The third variable region (V3) of the HIV-1 gp120 envelope glycoprotein is immunodominant and contains features essential for coreceptor binding. We determined the structure of V3 in the context of an HIV-1 gp120 core complexed to the CD4 receptor and to the X5 antibody at 3.5 angstrom resolution. Binding of gp120 to cell-surface CD4 would position V3 so that its coreceptor-binding tip protrudes 30 angstroms from the core toward the target cell membrane. The extended nature and antibody accessibility of V3 explain its immunodominance. Together, the results provide a structural rationale for the role of V3 in HIV entry and neutralization.
| |
|
| |
| Structure of a V3-containing HIV-1 gp120 core.,Huang CC, Tang M, Zhang MY, Majeed S, Montabana E, Stanfield RL, Dimitrov DS, Korber B, Sodroski J, Wilson IA, Wyatt R, Kwong PD Science. 2005 Nov 11;310(5750):1025-8. PMID:16284180<ref>PMID:16284180</ref>
| |
|
| |
| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| |
| </div>
| |
| <div class="pdbe-citations 2b4c" style="background-color:#fffaf0;"></div>
| |
|
| |
| ==See Also==
| |
| *[[CD4|CD4]]
| |
| == References ==
| |
| <references/>
| |
| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Human]] | | [[Category: Large Structures]] |
| [[Category: Dimitrov, D S]] | | [[Category: Z-disk]] |
| [[Category: Huang, C]]
| |
| [[Category: Korber, B]]
| |
| [[Category: Kwong, P D]]
| |
| [[Category: Majeed, S]]
| |
| [[Category: Montabana, E]]
| |
| [[Category: Sodroski, J]]
| |
| [[Category: Stanfield, R L]]
| |
| [[Category: Tang, M]]
| |
| [[Category: Wilson, I A]]
| |
| [[Category: Wyatt, R]]
| |
| [[Category: Zhang, M Y]]
| |
| [[Category: Cd4 induced antibody]]
| |
| [[Category: Gp120]]
| |
| [[Category: Hiv-1]]
| |
| [[Category: Jrfl]]
| |
| [[Category: V3]]
| |
| [[Category: Viral protein-immune system complex]]
| |
| [[Category: X5]]
| |