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应用
胶原酶已用于动脉组织的制备，用于晚期糖基化终产物 (AGE) 的研究。这种酶还与其他蛋白酶一起用于人类肿瘤、小鼠肾、人脑、肺上皮和许多其他组织的解聚。在肝脏和肾脏灌注研究、胰腺的消化和非实质肝细胞的分离中也有效。也适用于大鼠附睾脂肪垫脂肪细胞的制备。
生化/生理作用
有效地从组织中释放细胞需要胶原酶和中性蛋白酶的共同作用。每摩尔酶用 4 克原子钙 (Ca2+) 激活胶原酶。一般认为培养滤液至少含有 7 种不同的蛋白酶，分子量范围为 68-130 kDa（最适用 pH：6.3-8.8）。该酶识别序列-R-Pro-8-X-Gly-Pro-R-，其中 X 是最常见的中性氨基酸。
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。
注意
供应的产品可在-20°C 下可稳定保存一年。在 37°C、50°C 和-20°C 条件下储存 30 天，FALGPA 或蛋白酶活性无损失。快速冷冻 (10 mg/mL) 并在-20°C 下冷冻时，粗胶原酶溶液是稳定的。进一步冻融循环将破坏溶液。置于冰上 7 小时后，产品仍保持 100% 活性。
单位定义
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。
制备说明
本品由溶组织梭菌的 Ⅱ 型 (C6885) 胶原酶制备而成。通常在 37°C 下用 TESCA 缓冲液（含 50 mM TES，0.36 mM 氯化钙，pH 7.4）制备 1-2 mg/mL 溶液。溶液还含有梭菌蛋白酶、非特异性中性蛋白酶和胰蛋白酶活性。
底物
警示用语：
Danger
危险分类
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
常规特殊物品
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实验方案
在测定胶原酶活性时，使用N-（3-[2-呋喃基]丙烯酰基）-Leu-Gly-Pro-Ala在345nm处进行连续分光光度法测定。胶原酶水解胶原肽键。
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