猪 GAP (GTPase Activating Prote

ARF GTPase-Activating Protein 1

of intrinsic GTPase activity, and GTP hydrolysis depends on the action of GTPase-activating proteins (GAPs). ARF GAPs are a family of proteins which contain a conserved GAP domain of approx 130 amino acids with a unique Cys4 zinc-finger motif near their amino

Regulation of Gap Junction Protein (Connexin) Genes and Function in Differentiating ES Cells

Gap junctions are specialized cell-cell junctions that directly link the cytoplasm of neighboring cells. They mediate the direct transfer of low molecular weight (2+ between adjacent cells. Therefore, gap junctional intercellular

Ras蛋白(Ras protein)

上释放出来,取而代之的是GTP,从而将Ras激活,GEF的活性受生长因子及其受体的影响。另一个控制Ras蛋白活性的是GTP酶激活蛋白(GTPase activating protein, GAP),存在于正常细胞中,主要作用是激活Ras蛋白的GTP酶，将结合在Ras蛋白上的 GTP水解成GDP，成为失活型的 Ras蛋白—GDP。所以在正常情况下，Ras蛋白基本上都与 GDP结合在一起，定位在细胞质膜内表面上。