2oew
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= PDCD6IP, AIP1, ALIX, KIAA1375 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= PDCD6IP, AIP1, ALIX, KIAA1375 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[2oev|2OEV]], [[2oex|2OEX]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2oew FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oew OCA], [http://www.ebi.ac.uk/pdbsum/2oew PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2oew RCSB]</span> | ||
}} | }} | ||
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[[Category: tpr]] | [[Category: tpr]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:16:46 2008'' |
Revision as of 01:16, 31 March 2008
| |||||||
| , resolution 2.55Å | |||||||
|---|---|---|---|---|---|---|---|
| Gene: | PDCD6IP, AIP1, ALIX, KIAA1375 (Homo sapiens) | ||||||
| Related: | 2OEV, 2OEX
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Structure of ALIX/AIP1 Bro1 Domain
Overview
ALIX/AIP1 functions in enveloped virus budding, endosomal protein sorting, and many other cellular processes. Retroviruses, including HIV-1, SIV, and EIAV, bind and recruit ALIX through YPX(n)L late-domain motifs (X = any residue; n = 1-3). Crystal structures reveal that human ALIX is composed of an N-terminal Bro1 domain and a central domain that is composed of two extended three-helix bundles that form elongated arms that fold back into a "V." The structures also reveal conformational flexibility in the arms that suggests that the V domain may act as a flexible hinge in response to ligand binding. YPX(n)L late domains bind in a conserved hydrophobic pocket on the second arm near the apex of the V, whereas CHMP4/ESCRT-III proteins bind a conserved hydrophobic patch on the Bro1 domain, and both interactions are required for virus budding. ALIX therefore serves as a flexible, extended scaffold that connects retroviral Gag proteins to ESCRT-III and other cellular-budding machinery.
About this Structure
2OEW is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural and biochemical studies of ALIX/AIP1 and its role in retrovirus budding., Fisher RD, Chung HY, Zhai Q, Robinson H, Sundquist WI, Hill CP, Cell. 2007 Mar 9;128(5):841-52. PMID:17350572
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