1aws
From Proteopedia
| Line 4: | Line 4: | ||
|PDB= 1aws |SIZE=350|CAPTION= <scene name='initialview01'>1aws</scene>, resolution 2.55Å | |PDB= 1aws |SIZE=350|CAPTION= <scene name='initialview01'>1aws</scene>, resolution 2.55Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= | + | |LIGAND= <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] </span> |
|GENE= CYCLOPHILIN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= CYCLOPHILIN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1aws FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aws OCA], [http://www.ebi.ac.uk/pdbsum/1aws PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1aws RCSB]</span> | ||
}} | }} | ||
| Line 29: | Line 32: | ||
[[Category: pseudo-symmetry]] | [[Category: pseudo-symmetry]] | ||
| - | ''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 18:48:58 2008'' |
Revision as of 15:48, 30 March 2008
| |||||||
| , resolution 2.55Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | CYCLOPHILIN (Homo sapiens) | ||||||
| Activity: | Peptidylprolyl isomerase, with EC number 5.2.1.8 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
SECYPA COMPLEXED WITH HAGPIA (PSEUDO-SYMMETRIC MONOMER)
Overview
The cellular protein, cyclophilin A (CypA), is incorporated into the virion of the type 1 human immunodeficiency virus (HIV-1) via a direct interaction with the capsid domain of the viral Gag polyprotein. We demonstrate that the capsid sequence 87His-Ala-Gly-Pro-Ile-Ala92 (87HAGPIA92) encompasses the primary cyclophilin A binding site and present an X-ray crystal structure of the CypA/HAGPIA complex. In contrast to the cis prolines observed in all previously reported structures of CypA complexed with model peptides, the proline in this peptide, Pro 90, binds the cyclophilin A active site in a trans conformation. We also report the crystal structure of a complex between CypA and the hexapeptide HVGPIA, which also maintains the trans conformation. Comparison with the recently determined structures of CypA in complexes with larger fragments of the HIV-1 capsid protein demonstrates that CypA recognition of these hexapeptides involves contacts with peptide residues Ala(Val) 88, Gly 89, and Pro 90, and is independent of the context of longer sequences.
About this Structure
1AWS is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of cyclophilin A complexed with a binding site peptide from the HIV-1 capsid protein., Vajdos FF, Yoo S, Houseweart M, Sundquist WI, Hill CP, Protein Sci. 1997 Nov;6(11):2297-307. PMID:9385632
Page seeded by OCA on Sun Mar 30 18:48:58 2008
