This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1a43
From Proteopedia
| Line 7: | Line 7: | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a43 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a43 OCA], [http://www.ebi.ac.uk/pdbsum/1a43 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1a43 RCSB]</span> | ||
}} | }} | ||
| Line 31: | Line 34: | ||
[[Category: hiv-1]] | [[Category: hiv-1]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 18:32:46 2008'' |
Revision as of 15:32, 30 March 2008
| |||||||
| , resolution 2.60Å | |||||||
|---|---|---|---|---|---|---|---|
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF THE HIV-1 CAPSID PROTEIN DIMERIZATION DOMAIN AT 2.6A RESOLUTION
Overview
The human immunodeficiency virus type I (HIV-1) capsid protein is initially synthesized as the central domain of the Gag polyprotein, and is subsequently proteolytically processed into a discrete 231-amino-acid protein that forms the distinctive conical core of the mature virus. The crystal structures of two proteins that span the C-terminal domain of the capsid are reported here: one encompassing residues 146-231 (CA146-231) and the other extending to include the 14-residue p2 domain of Gag (CA146-p2). The isomorphous CA146-231 and CA146-p2 structures were determined by molecular replacement and have been refined at 2.6 A resolution to R factors of 22.3 and 20.7% (Rfree = 28.1 and 27.5%), respectively. The ordered domains comprise residues 148-219 for CA146-231 and 148-218 for CA146-p2, and their refined structures are essentially identical. The proteins are composed of a 310 helix followed by an extended strand and four alpha-helices. A crystallographic twofold generates a dimer that is stabilized by parallel packing of an alpha-helix 2 across the dimer interface and by packing of the 310 helix into a groove created by alpha-helices 2 and 3 of the partner molecule. CA146-231 and CA146-p2 dimerize with the full affinity of the intact capsid protein, and their structures therefore reveal the essential dimer interface of the HIV-1 capsid.
About this Structure
1A43 is a Single protein structure of sequence from Human immunodeficiency virus 1. Full crystallographic information is available from OCA.
Reference
Structures of the HIV-1 capsid protein dimerization domain at 2.6 A resolution., Worthylake DK, Wang H, Yoo S, Sundquist WI, Hill CP, Acta Crystallogr D Biol Crystallogr. 1999 Jan;55(Pt 1):85-92. Epub 1999, Jan 1. PMID:10089398
Page seeded by OCA on Sun Mar 30 18:32:46 2008
