胶原酶 来源于溶组织梭菌

每摩尔胶原蛋白酶被4g原子钙活化。 它被乙二醇-双（β-氨基乙基醚）-N，NN′,N′-四乙酸，β-巯基乙醇、谷胱甘肽、巯基乙酸和8-羟基喹啉抑制。

Effective release of cells from tissue requires the action of collagenase enzymes and the neutral protease. Collagenase is activated by four gram atom calcium (Ca²⁺) per mole enzyme. The culture filtrate is thought to contain at least 7 different proteases ranging in molecular weight from 68-130 kDa. The pH optimum is 6.3-8.8. The enzyme is typically used to digest the connective components in tissue samples to liberate individual cells. Collagenase treatment can cause some cells to die. Typically, concentrations varying from 0.1 to 5 mg/mL are used for digestion. The duration of reaction varies from 15 minutes to several hours and yields a satisfactory efficiency of cell dissociation without causing too much cell death. Krebs Ringer buffer with calcium and BSA is preferred and Zn²⁺ is required for activity. This enzyme is tested for suitability for the release of hepatocytes (at approx. 1 mg/mL in a total volume of 100 mL) for each rat liver.

也具有梭菌蛋白酶、非特异性中性蛋白酶和胰蛋白酶活性。

Prepared from Type XI (C7657)

一个胶原蛋白消化单元（CDU）从牛跟腱胶原蛋白中释放的肽链量和1.0 μ亮氨酸，5小时，pH7.4,37℃，在钙离子存在下的茚三酮颜色相同。一个 FALGPA水解单元每分钟，25℃，水解1.0 μmole 呋喃基丙烯酰-Leu-Gly-Pro-Ala。一个中性蛋白酶单元水解酪蛋白，产生颜色和1.0 μmole 酪氨酸每5小时，pH7.5,37℃下产生的相同。一个梭菌蛋白酶单元在DTT存在下，pH7.6,25℃，每分钟水解1.0 μmole BAEE。