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4xfy

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Revision as of 13:25, 19 April 2017

Structure of the native full-length dehydrated HIV-1 capsid protein

Structural highlights

4xfy is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	4xfx, 4xfz
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[GAG_HV1N5] Matrix protein p17 targets Gag and Gag-Pol polyproteins to the plasma membrane via a multipartite membrane binding signal, that includes its myristoylated N-terminus. Also mediates nuclear localization of the preintegration complex. Implicated in the release from host cell mediated by Vpu. Capsid protein p24 forms the conical core of the virus that encapsulates the genomic RNA-nucleocapsid complex. Nucleocapsid protein p7 encapsulates and protects viral dimeric unspliced (genomic) RNA. Binds these RNAs through its zinc fingers. p6-gag plays a role in budding of the assembled particle by interacting with the host class E VPS proteins TSG101 and PDCD6IP/AIP1 (By similarity).

Publication Abstract from PubMed

The detailed molecular interactions between native HIV-1 capsid protein (CA) hexamers that shield the viral genome and proteins have been elusive. We report crystal structures describing interactions between CA monomers related by 6-fold symmetry within hexamers (intra-hexamer), and 3-fold and 2-fold symmetry between neighboring hexamers (inter-hexamer). The structures describe how CA builds hexagonal lattices, the foundation of mature capsids. Lattice structure depends on an adaptable hydration layer modulating interactions among CA molecules. Disruption of this layer alters inter-hexamer interfaces, highlighting an inherent structural variability. A CA-targeting antiviral affects capsid stability by binding across CA molecules and altering inter-hexamer interfaces remote to the ligand-binding site. Inherent structural plasticity, hydration layer rearrangement, and effector-binding affect capsid stability and have functional implications for the retroviral life-cycle.

X-ray crystal structures of native HIV-1 capsid protein reveal conformational variability.,Gres AT, Kirby KA, KewalRamani VN, Tanner JJ, Pornillos O, Sarafianos SG Science. 2015 Jun 4. pii: aaa5936. PMID:26044298^[1]

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

References

↑ Gres AT, Kirby KA, KewalRamani VN, Tanner JJ, Pornillos O, Sarafianos SG. X-ray crystal structures of native HIV-1 capsid protein reveal conformational variability. Science. 2015 Jun 4. pii: aaa5936. PMID:26044298 doi:http://dx.doi.org/10.1126/science.aaa5936

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/4xfy"

@@ Line 1: / Line 1: @@
 ==Structure of the native full-length dehydrated HIV-1 capsid protein==
 <StructureSection load='4xfy' size='340' side='right' caption='[[4xfy]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1PE:PENTAETHYLENE+GLYCOL'>1PE</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4xfx|4xfx]], [[4xfz|4xfz]]</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=4xfy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xfy OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xfy RCSB], [http://www.ebi.ac.uk/pdbsum/4xfy 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=4xfy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xfy OCA], [http://pdbe.org/4xfy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xfy RCSB], [http://www.ebi.ac.uk/pdbsum/4xfy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xfy ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4xfy" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4xfy

From Proteopedia

Revision as of 13:25, 19 April 2017

Structure of the native full-length dehydrated HIV-1 capsid protein

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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