重组羧肽酶B

序列分析纯重组羧肽酶B

DTXSID801009277 | FT-0623486 | Carboxypeptidase B from human pancreas, 50-55 units/mg protein carboxypeptidase B | 4-[[1-[[1-[2-[(1-benzylsulfanyl-1-oxo-3-phenylpropan-2-yl)carbamoyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-oxobu

R141077-100mg

100mg

EnzymoPure™

≥170 units/mg protein

羧肽酶B专一水解蛋白质C-末端碱性氨基酸（赖氨酸、精氨酸、组氨酸）；又称为肽酰-L-赖氨酸（L-精氨酸）水解酶；精蛋白酶。分子量为35kD，等电点为6.0，最适pH为7-9。活性受精氨酸、赖氨酸的竞争性抑制，金属离子螯合剂如EDTA等抑制酶活。无动物源性：重组生产，无外源性的病毒污染，如猪流感病毒、猪细小病毒等。纯度高：无糜蛋白酶、羧肽酶A等活性，胰蛋白酶含量小于10ppm，酶切反应无其它副反应。稳定：冻干粉，易于储存和运输。 重组胰岛素及其类似物的生产；蛋白质C-末端氨基酸的测定；其它重组多肽类物质的生产；某些特殊化合物的酶促合成 Carboxypeptidase B catalyzes hydrolysis of the basic amino acids lysine, arginine and histidine from theC-terminal end of polypeptides. The molecular weight is 34,500 daltons, the pH optimum is 8.0, and pI is 6.0.Carboxypeptidase B is competitively inhibited by arginine and lysine. The enzyme is also inhibited by metal chelating agents, e.g., EDTA. Recombinant Carboxypeptidase B (EC 3.4.17.2) is expressed in E.Coli and purified by high pressure liquid chromatography. There is no trace of other enzyme (such as carboxypeptidase A and chymotrypsin) activity. No protease inhibitors such as PMSF are present in the preparation.Animal origin free:eliminate the risk of virus presence, or of any other potential adventitious agents found in animal-derived carboxypeptitase B.Stability:A sterile recombinant carboxypeptidase B lyophilized eliminates the risk of contamination and decreases the chances of activity loss in the process of transport and storage. High purity:1) Recombinant carboxypeptidase B provides increased specific activity and eliminates contaminating protease activities found in extracted enzymes with lower purity level. 2) No other contaminating proteases such as chymotrypsin and carboxypeptidase A. 3）Less than 10ppm of recombinant trypsin.