2ht6

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Crystal structure of Human Gem G-domain bound to GDPCrystal structure of Human Gem G-domain bound to GDP

Structural highlights

2ht6 is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:,
Gene:GEM, KIR (HUMAN)
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[GEM_HUMAN] Could be a regulatory protein, possibly participating in receptor-mediated signal transduction at the plasma membrane. Has guanine nucleotide-binding activity but undetectable intrinsic GTPase activity.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Gem, a member of the Rad,Gem/Kir subfamily of small G-proteins, has unique sequence features. We report here the crystallographic structure determination of the Gem G-domain in complex with nucleotide to 2.4 A resolution. Although the basic Ras protein fold is maintained, the Gem switch regions emphatically differ from the Ras paradigm. Our ensuing biochemical characterization indicates that Gem G-domain markedly prefers GDP over GTP. Two known functions of Gem are distinctly affected by spatially separated clusters of mutations.

Structure-function studies of the G-domain from human gem, a novel small G-protein.,Opatowsky Y, Sasson Y, Shaked I, Ward Y, Chomsky-Hecht O, Litvak Y, Selinger Z, Kelly K, Hirsch JA FEBS Lett. 2006 Oct 30;580(25):5959-64. Epub 2006 Oct 6. PMID:17052716[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Opatowsky Y, Sasson Y, Shaked I, Ward Y, Chomsky-Hecht O, Litvak Y, Selinger Z, Kelly K, Hirsch JA. Structure-function studies of the G-domain from human gem, a novel small G-protein. FEBS Lett. 2006 Oct 30;580(25):5959-64. Epub 2006 Oct 6. PMID:17052716 doi:10.1016/j.febslet.2006.09.067

2ht6, resolution 2.40Å

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OCA