产品名称

Collagenase from Clostridium histolyticum

别 称

Clostridiopeptidase A

含 量

0.5-5.0 FALGPA units/mg solid, cell culture tested

CAS  NO.

9001-12-1

MDL  number

MFCD00130830

适用范围

生物试剂

l  理化信息

外 观

浅米色至米褐色至深棕色冻干粉末（从无菌过滤溶液冻干）

l  生物学信息

生物活性/药理作用

Collagenase is activated by four gram atom calcium per mole enzyme. It is inhibited by ethylene glycol-bis(beta-aminoethyl ether) - N, N, N′,N′-tetraacetic acid, beta-mercaptoethanol, glutathione, thioglycolic acid and 8-hydroxyquinoline. The collagenase product is a mixture of enzymes secreted by C. histolyticum, with different products differentiated by the relative ratios of the 10-18 components found in the secreted enzymes. The main components are two collagenases, clostripain, and a neutral protease. The synergistic action of these enzymes degrade collagen and other intracellular materialThe action of both collagenase enzymes and the neutral protease is necessary for effective release of cells from tissue. Various types of collagen are the natural substrates for collagenase.

应 用

This product is suitable for the disaggregation of human tumor, mouse kidney, human adult and fetal brain, lung and many other epithelia tissues. It has also been shown to be effective in liver and kidney perfusion studies, digestion of pancreas, isolation of nonparenchymal rat liver cells and hepatocyte preparation. Collagenase has also been used in the preparation of arterial tissue for the study of Advanced Glycosylation End Products. This enzyme has been tested for the release of heptatocytes at a concentration of approximately 1mg/mL. Concentrations for digestion range from 0.1 to 5mg/mL.

样品准备说明

Solutions are typically prepared at 1-2mg/mL in TESCA buffer (containing 50mM TES, 0.36mM Calcium chloride, pH7.4 at 37°C. This product also contains clostripain, nonspecific neutral protease and tryptic activities.      

注 意

As supplied, this product is stable for one year at -20°C. There is no loss in FALGPA or protease activity in 30 days at 37°C, 50°C and -20°C. Solutions of crude collagenase are stable if frozen quickly in aliquots (at 10mg/mL) and kept frozen at -20°C. Further freeze-thaw cycles will damage the solution. The product retains 100% activity over 7 hours when held on ice.

有效单位定义

One collagen digestion unit (CDU) liberates  peptides from collagen from bovine achilles tendon equivalent in ninhydrin color to 1.0μmole of leucine in 5 hours at pH7.4 at 37°C in the presence of calcium ions. One FALGPA hydrolysis unit hydrolyzes 1.0μmole of furylacryloyl-Leu-Gly-Pro-Ala per min at 25°C. One Neutral Protease unit hydrolyzes casein to produce color equivalent to 1.0μmole of tyrosine per 5 hr at pH7.5 at 37°C. One Clostripain Unit hydrolyzes 1.0μmole of BAEE per min at pH 7.6 at 25°C in the presence of DTT.

l  存储

存储温度

-20°C

l  注意事项及免责声明

本产品仅用于实验研究，不得作为药物使用，不得用于家用或其它用途。

l  参考文献

1.    http://www.drugbank.ca

2.    https://ncit.nci.nih.gov

3.    https://www.ncbi.nlm.nih.gov