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Sci. STKE, 14 September 2004
Vol. 2004, Issue 250, p. re13
[DOI: 10.1126/stke.2502004re13]

REVIEWS

Human RAS Superfamily Proteins and Related GTPases

John Colicelli*

Department of Biological Chemistry and Molecular Biology Institute, University of California Los Angeles, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.

Gloss: Proteins that bind and hydrolyze GTP (guanosine triphosphate), known as GTPases, are pervasive mediators of intracellular signal transduction. Among the first human GTPases studied were the RAS proteins, which are often found in mutated, hyperactive forms in cancer cells. Over the past 25 years, a family of RAS-related proteins has been identified. This review considers recent progress in understanding the biochemical properties and biological function of RAS family proteins. Analysis of the human genome was used to identify novel members of this family. In addition, comparisons with the completed genomes of fly and worm revealed new insights into evolution and structural conservation, with implications for predicting function. An overview of the full complement of human RAS superfamily proteins, and how they fit within a larger group of human GTPases, is presented.

*To whom correspondence should be addressed. E-mail: colicelli{at}mednet.ucla.edu

Citation: J. Colicelli, Human RAS Superfamily Proteins and Related GTPases. Sci. STKE 2004, re13 (2004).

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