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A cathepsin substrate
Suc-AAPF-pNA is a chromogenic substrate that can be cleaved by cathepsin G (Km = 1.7 mM), subtilisins, chymotrypsin (Km = 60 µM), chymase (Km = 4 mM), and cyclophilin, but not neutrophil elastase. Release of p-nitroanilide is monitored at 405-410 nm. This substrate can be used for inhibitor screening and kinetic analysis.
Suc-AAPF-pNA 是一种显色底物,可被组织蛋白酶 G (Km = 1.7 mM)、枯草杆菌蛋白酶、胰凝乳蛋白酶 (Km = 60 µM)、糜蛋白酶 (Km = 4 mM) 和亲环蛋白裂解,但不能被中性粒细胞裂解弹性蛋白酶。在 405-410 nm 监测对硝基苯胺的释放。该底物可用于抑制剂筛选和动力学分析。
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