1nwm
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
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| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1nwm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nwm OCA], [http://www.ebi.ac.uk/pdbsum/1nwm PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1nwm RCSB]</span> | ||
}} | }} | ||
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[[Category: three-alpha helical bundle]] | [[Category: three-alpha helical bundle]] | ||
| - | ''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 22:36:31 2008'' |
Revision as of 19:36, 30 March 2008
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| , resolution 2.40Å | |||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
GAT domain of human GGA1
Overview
The Golgi-associated, gamma-adaptin homologous, ADP-ribosylation factor (ARF)-interacting proteins (GGAs) are adaptors that sort receptors from the trans-Golgi network into the endosomallysosomal pathway. The GGAs and TOM1 (GAT) domains of the GGAs are responsible for their ARF-dependent localization. The 2.4-A crystal structure of the GAT domain of human GGA1 reveals a three-helix bundle, with a long N-terminal helical extension that is not conserved in GAT domains that do not bind ARF. The ARF binding site is located in the N-terminal extension and is separate from the core three-helix bundle. An unanticipated structural similarity to the N-terminal domain of syntaxin 1a was discovered, comprising the entire three-helix bundle. A conserved binding site on helices 2 and 3 of the GAT domain three-helix bundle is predicted to interact with coiled-coil-containing proteins. We propose that the GAT domain is descended from the same ancestor as the syntaxin 1a N-terminal domain, and that both protein families share a common function in binding coiled-coil domain proteins.
About this Structure
1NWM is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of the GAT domain of human GGA1: a syntaxin amino-terminal domain fold in an endosomal trafficking adaptor., Suer S, Misra S, Saidi LF, Hurley JH, Proc Natl Acad Sci U S A. 2003 Apr 15;100(8):4451-6. Epub 2003 Mar 31. PMID:12668765
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