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1l6n

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Revision as of 21:49, 24 January 2018

Warning: this is a large structure, and loading might take a long time or not happen at all.

STRUCTURE OF THE N-TERMINAL 283-RESIDUE FRAGMENT OF THE HIV-1 GAG POLYPROTEIN

Structural highlights

1l6n is a 1 chain structure with sequence from 9hiv1. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	gag (9HIV1)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Warning: this is a large structure, and loading might take a long time or not happen at all.

Function

[Q72497_9HIV1] Capsid protein p24 forms the conical core of the virus that encapsulates the genomic RNA-nucleocapsid complex (By similarity). Nucleocapsid protein p7 encapsulates and protects viral dimeric unspliced (genomic) RNA. Binds these RNAs through its zinc fingers (By similarity).[SAAS:SAAS012344_004_011858]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The capsid protein (CA) of the mature human immunodeficiency virus (HIV) contains an N-terminal beta-hairpin that is essential for formation of the capsid core particle. CA is generated by proteolytic cleavage of the Gag precursor polyprotein during viral maturation. We have determined the NMR structure of a 283-residue N-terminal fragment of immature HIV-1 Gag (Gag(283)), which includes the intact matrix (MA) and N-terminal capsid (CA(N)) domains. The beta-hairpin is unfolded in Gag(283), consistent with the proposal that hairpin formation occurs subsequent to proteolytic cleavage of Gag, triggering capsid assembly. Comparison of the immature and mature CA(N) structures reveals that beta-hairpin formation induces a approximately 2 A displacement of helix 6 and a concomitant displacement of the cyclophylin-A (CypA)-binding loop, suggesting a possible allosteric mechanism for CypA-mediated destabilization of the capsid particle during infectivity.

Structure of the N-terminal 283-residue fragment of the immature HIV-1 Gag polyprotein.,Tang C, Ndassa Y, Summers MF Nat Struct Biol. 2002 Jul;9(7):537-43. PMID:12032547^[1]

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

References

↑ Tang C, Ndassa Y, Summers MF. Structure of the N-terminal 283-residue fragment of the immature HIV-1 Gag polyprotein. Nat Struct Biol. 2002 Jul;9(7):537-43. PMID:12032547 doi:10.1038/nsb806

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1l6n"

@@ Line 1: / Line 1: @@
+{{Large structure}}
 ==STRUCTURE OF THE N-TERMINAL 283-RESIDUE FRAGMENT OF THE HIV-1 GAG POLYPROTEIN==
 <StructureSection load='1l6n' size='340' side='right' caption='[[1l6n]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[1l6n]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/9hiv1 9hiv1]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L6N OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1L6N FirstGlance]. <br>
 </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">gag ([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=1l6n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l6n OCA], [http://pdbe.org/1l6n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1l6n RCSB], [http://www.ebi.ac.uk/pdbsum/1l6n 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=1l6n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l6n OCA], [http://pdbe.org/1l6n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1l6n RCSB], [http://www.ebi.ac.uk/pdbsum/1l6n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1l6n ProSAT]</span></td></tr>
 </table>
 {{Large structure}}
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l6/1l6n_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l6/1l6n_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 28: / Line 29: @@
 </div>
 <div class="pdbe-citations 1l6n" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Gag polyprotein|Gag polyprotein]]
 == References ==
 <references/>

1l6n

From Proteopedia

Revision as of 21:49, 24 January 2018

STRUCTURE OF THE N-TERMINAL 283-RESIDUE FRAGMENT OF THE HIV-1 GAG POLYPROTEIN

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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