Thrombin Receptor Agonist Peptide (trifluoroacetate salt)

Description: Thrombin receptor agonist peptide (TRAP-14) is a 14-amino acid peptide agonist of the alpha-thrombin receptor. It induces aggregation of washed platelets as well as platelets in citrated and hirudin plasma. TRAP-14 (100 µM) increases the cytosolic calcium concentration in isolated guinea pig pulmonary smooth muscle cells 5-fold over baseline. It increases pulmonary arterial pressure in isolated guinea pig lung when used at a concentration of 1 µM, which is comparable to the effect induced by 10 nM alpha-thrombin. TRAP-14 also induces contraction of isolated rat aortic rings and increases endothelin-1 (ET-1) levels in a dose-dependent manner, an effect that is reversed by the ETA antagonist BQ-123 and the nitric oxide synthase (NOS) inhibitor L-NNA . Target: Others