Phosphatidylinositol 3,4,5-Trisphosphate-Dependent Rac Exchanger 1 Protein

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 1 protein (1659 aa, ~186 kDa) is encoded by the human PREX1 gene. This protein is involved in the propagation of intracellular signaling through guanine nucleotide exchange activity.

**Synonyms:** - P-Rex1 - PREX1 - PtdIns(3,4,5)-Dependent Rac Exchanger 1