2iwr: Difference between revisions

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|PDB= 2iwr |SIZE=350|CAPTION= <scene name='initialview01'>2iwr</scene>, resolution 1.50&Aring;
|PDB= 2iwr |SIZE=350|CAPTION= <scene name='initialview01'>2iwr</scene>, resolution 1.50&Aring;
|SITE=  
|SITE=  
|LIGAND=  
|LIGAND= <scene name='pdbligand=CAF:S-DIMETHYLARSINOYL-CYSTEINE'>CAF</scene>
|ACTIVITY=  
|ACTIVITY=  
|GENE=  
|GENE=  
|DOMAIN=
|RELATEDENTRY=[[2bmj|2BMJ]]
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2iwr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iwr OCA], [http://www.ebi.ac.uk/pdbsum/2iwr PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2iwr RCSB]</span>
}}
}}


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[[Category: zinc-finger]]
[[Category: zinc-finger]]


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:34:20 2008''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:49:42 2008''

Revision as of 03:49, 31 March 2008

File:2iwr.gif


PDB ID 2iwr

Drag the structure with the mouse to rotate
, resolution 1.50Å
Ligands:
Related: 2BMJ


Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



GTPASE LIKE DOMAIN OF CENTAURIN GAMMA 1 (HUMAN)


OverviewOverview

Centaurins are a family of proteins that contain GTPase-activating protein domains, with the gamma family members containing in addition a GTPase-like domain. Centaurins reside mainly in the nucleus and are known to activate phosphoinositide 3-kinase, a key regulator of cell proliferation, motility and vesicular trafficking. In the present study, using X-ray structural analysis, enzymatic assays and nucleotide-binding studies, we show that, for CENTG1 (centaurin gamma-1) the GTPase-like domain has broader trinucleotide specificity. Alterations within the G4 motif of CENTG1 from the highly conserved NKXD found in typical GTPases to TQDR result in the loss of specificity, a lower affinity for the nucleotides and higher turnover rates. These results indicate that the centaurins could be more accurately classified as NTPases and point to alternative mechanisms of cell signalling control.

About this StructureAbout this Structure

2IWR is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

The centaurin gamma-1 GTPase-like domain functions as an NTPase., Soundararajan M, Yang X, Elkins JM, Sobott F, Doyle DA, Biochem J. 2007 Feb 1;401(3):679-88. PMID:17037982

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