Ontology highlight
ABSTRACT:
SUBMITTER: Nimnual AS
PROVIDER: S-EPMC3116599 | biostudies-literature | 2010 Sep
REPOSITORIES: biostudies-literature
Nimnual Anjaruwee S AS Taylor Laura J LJ Nyako Marian M Jeng Hao-Hsuan HH Bar-Sagi Dafna D
Small GTPases 20100901 2
Rac1, a ubiquitously expressed member of the Rho GTPase family, plays a pivotal role in the regulation of multiple cellular processes including cytoskeleton reorganization, cell growth, differentiation and motility. Here we show that the tumor-specific splice variant of Rac1, Rac1b, negatively regulates Rac1 activity. The expression of Rac1b in HeLa cells interferes with Rac1 activation by PDGF, leads to a reduction in membrane-bound Rac1 and promotes an increase in Rho activity. The antagonisti ...[more]