Phosphatidylinositol 3,4,5-Trisphosphate-Dependent Rac Exchanger 2 Protein (PREX2) Reagents

Phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 2 protein

Functions as a RAC1 guanine nucleotide exchange factor (GEF), activating Rac proteins by exchanging bound GDP for free GTP. Its activity is synergistically activated by phosphatidylinositol 3,4,5-trisphosphate and the beta gamma subunits of heterotrimeric G protein. Mediates the activation of RAC1 in a PI3K-dependent manner. May be an important mediator of Rac signaling, acting directly downstream of both G protein-coupled receptors and phosphoinositide 3-kinase.

Isoform 1 is highly expressed in skeletal muscle, heart and placenta, absent from peripheral blood leukocytes. Isoform 2 is expressed in skeletal muscle, kidney, small intestine, and placenta. Isoform 3 is expressed in the heart.

4; 5)-dependent Rac exchanger 2; 5-trisphosphate-dependent Rac exchanger 2 protein; 6230420N16Rik; DEP domain-containing protein 2; DEP.2; DEPDC2; FLJ12987; P-Rex2; Phosphatidylinositol 3; phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 2; phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 2 protein; phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 2; PREX2; PREX2_HUMAN; PtdIns(3; PtdIns(3,4,5)-dependent Rac exchanger 2