1r2q is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Rab5 is a GTPase that regulates early endosome fusion. Its GTPase domain crystal structure is reported here at 1.05 A resolution in complex with a GTP-analog molecule. It provides the highest resolution three-dimensional model so far obtained for proteins from the Ras-like GTPase family. This study allows extension of structural examination of the GTPase machinery as well as of high-resolution protein structures in general. For example, a buried water-molecule network was observed underneath the switch regions, which is consistent with the functional roles of these regions in the molecular-switching process. Furthermore, residues of multiple conformation and clustered distribution of anisotropic thermal motions of the protein molecule may have general implications for the function of Ras-like GTPases.
Refinement of the structure of human Rab5a GTPase domain at 1.05 A resolution.,Terzyan S, Zhu G, Li G, Zhang XC Acta Crystallogr D Biol Crystallogr. 2004 Jan;60(Pt 1):54-60. Epub 2003, Dec 18. PMID:14684892[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Terzyan S, Zhu G, Li G, Zhang XC. Refinement of the structure of human Rab5a GTPase domain at 1.05 A resolution. Acta Crystallogr D Biol Crystallogr. 2004 Jan;60(Pt 1):54-60. Epub 2003, Dec 18. PMID:14684892
