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背景说明:TRAP-6 (PAR-1 agonist peptide),一种多肽片段,是选择性的蛋白酶激活受体 1 (PAR1) 激动剂。TRAP-6 通过凝血酶受体激活人血小板。TRAP-6 对 PAR4 无活性。TRAP-6 (PAR-1 agonist peptide), a peptide fragment, is a selective protease activating receptor 1 (PAR1) agonist. TRAP-6 activates human platelets via the thrombin receptor. TRAP-6 shows no activity at PAR4. In Vivo:TRAP (1 mg/kg; i.v.) produces a biphasic response in blood pressure in inactin-anesthetized rats. In Vitro:TRAP-6 (0.01-10 μM) triggers calcium mobilization in Xenopus oocytes heterologously expressing PAR1. TRAP-6 (0.01-10 μM; 30 min) activates human platelets. TRAP-6 (100 μM) does not cause the platelets of rabbits or rats to change shape, aggregate, release granule contents, or form thromboxane. 参考文献:[1] Scarborough, RM. et al. J. Biol. Chem. 267, 13146 (1992); [2] Ahmad, S. and PN. Walsh, Biochem. 44, 13858 (2005); [3] Buergler, M. et al. J. Thromb. Thrombolysis 19, 115 (2005).
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