2ny3: Difference between revisions
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==HIV-1 gp120 Envelope Glycoprotein (K231C, T257S, E267C, S334A, S375W) Complexed with CD4 and Antibody 17b== | ==HIV-1 gp120 Envelope Glycoprotein (K231C, T257S, E267C, S334A, S375W) Complexed with CD4 and Antibody 17b== | ||
<StructureSection load='2ny3' size='340' side='right' caption='[[2ny3]], [[Resolution|resolution]] 2.00Å' scene=''> | <StructureSection load='2ny3' size='340' side='right'caption='[[2ny3]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ny3]] is a 4 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2ny3]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/9hiv1 9hiv1] and [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NY3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NY3 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand= | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=FRU:FRUCTOSE'>FRU</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1gc1|1gc1]], [[1rzj|1rzj]], [[1rzk|1rzk]], [[2nxy|2nxy]], [[2nxz|2nxz]], [[2ny0|2ny0]], [[2ny1|2ny1]], [[2ny2|2ny2]], [[2ny4|2ny4]], [[2ny5|2ny5]], [[2ny6|2ny6]], [[2ny7|2ny7]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1gc1|1gc1]], [[1rzj|1rzj]], [[1rzk|1rzk]], [[2nxy|2nxy]], [[2nxz|2nxz]], [[2ny0|2ny0]], [[2ny1|2ny1]], [[2ny2|2ny2]], [[2ny4|2ny4]], [[2ny5|2ny5]], [[2ny6|2ny6]], [[2ny7|2ny7]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD4 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD4 ([https://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'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ny3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ny3 OCA], [https://pdbe.org/2ny3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ny3 RCSB], [https://www.ebi.ac.uk/pdbsum/2ny3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ny3 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/Q993A8_9HIV1 Q993A8_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). 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).[SAAS:SAAS000328_004_240990] [[https://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/ny/2ny3_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ny/2ny3_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> | ||
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==See Also== | ==See Also== | ||
*[[CD4|CD4]] | *[[Antibody 3D structures|Antibody 3D structures]] | ||
*[[3D structures of antibody|3D structures of antibody]] | *[[CD4 3D structures|CD4 3D structures]] | ||
*[[Gp120 3D structures|Gp120 3D structures]] | |||
*[[3D structures of human antibody|3D structures of human antibody]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Arthos, J]] | [[Category: Arthos, J]] | ||
[[Category: Burton, D R]] | [[Category: Burton, D R]] |