zgc:92666 antibody, GAPEX5 antibody, RAP6 antibody, 2010005B09Rik antibody, 4432404J10Rik antibody, AW108497 antibody, Gapex-5 antibody, RME-6 antibody, mKIAA1521 antibody, RGD1307479 antibody, GTPase activating protein and VPS9 domains 1 antibody, GTPase activating protein and VPS9 domains 1 S homeolog antibody, LOAG_00609 antibody, GAPVD1 antibody, gapvd1 antibody, gapvd1.S antibody, Gapvd1 antibody
背景
Acts both as a GTPase-activating protein (GAP and a guanine nucleotide exchange factor (GEF, and participates in various processes such as endocytosis, insulin receptor internalization or LC2A4/GLUT4 trafficking. Acts as a GEF for the Ras-related protein RAB31 by exchanging bound GDP for free GTP, leading to regulate LC2A4/GLUT4 trafficking. In the absence of insulin, it maintains RAB31 in an active state and promotes a futile cycle between LC2A4/GLUT4 storage vesicles and early endosomes, retaining LC2A4/GLUT4 inside the cells. Upon insulin stimulation, it is translocated to the plasma membrane, releasing LC2A4/GLUT4 from intracellular storage vesicles. Also involved in EGFR trafficking and degradation, possibly by promoting EGFR ubiquitination and subsequent degradation by the proteasome. Has GEF activity for Rab5 and GAP activity for Ras.,GAPVD1,GAPEX5,GAPex-5,RAP6,Cancer,Signal Transduction,G protein signaling,Signal Transduction,Endocrine & Metabolism,GAPVD1