A peptide agonist of PAR1 in smooth muscle cells but not platelets; increases mitogenesis and increases the expression of IGF-1R by 47% in VSMCs; increases histamine and β-hexosaminidase release from rat peritoneal mast cells with maximum release at 50 μM; increases swelling-activated efflux of [3H]glutamate induced by hypoosmotic medium in astrocytes in vitro at 5-10 μM