作者: T. Kozasa
DOI: 10.1126/SCIENCE.280.5372.2109
关键词:
摘要: Members of the regulators G protein signaling (RGS) family stimulate intrinsic guanosine triphosphatase (GTPase) activity α subunits certain heterotrimeric guanine nucleotide–binding proteins (G proteins). The nucleotide exchange factor (GEF) for Rho, p115 RhoGEF, has an amino-terminal region with similarity to RGS proteins. Recombinant RhoGEF and a fusion containing amino terminus had specific as GTPase activating toward G12 G13, but not members Gs, Gi, or Gqsubfamilies Gα This GEF may act intermediary in regulation Rho by G13 G12.