激肽释放酶,人血浆(冻干)

np001049-10μg

10μg

≥95%(SDS-PAGE)

一种从激肽原中释放缓激肽的丝氨酸蛋白酶。作为无活性前体前激肽释放酶存在于血浆中。 活性：每毫克15个单位。一个单位是指在25°C、pH 7.8下每分钟水解一umole D-Pro-Phe-Arg-pNA的酶量。 由经美国食品药品监督管理局要求的测试显示对HBsAg、抗-HCV、抗-HBc无反应且对抗-HIV 1和2呈阴性的血浆制备。 A serine protease that releases bradykinin from kininogen. Present in plasma as an inactive precursor prokallikrein. Activity: 15 units per mg. One unit is defined as the amount of enzyme that hydrolyzes one umole of D-Pro-Phe-Arg-pNA per minute at 25°C, pH 7.8. Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA-required tests.

86,000-88,000