羧肽酶B（豬胰）BR 70u/ mg 活性1KU CAS：9025-24-5 現(xiàn)貨

更新時(shí)間：2013-12-21 點(diǎn)擊次數(shù)：1147次

英文名稱(chēng)：Carboxypeptidase B from porcine pancreas；Peptidyl-L-lysine(L-arginine) hydrolase； Protaminase
其他名稱(chēng)：精蛋白酶；肽酰-L-賴(lài)氨酸水解酶；肽酰-L-精氨酸水解酶

CAS號(hào)：9025-24-5

級(jí)別：BR

分子量：34500daltons
活力：≥70units/mg
活力定義：One unit hydrolyzes one micromole os hippuryl-L-arginine per minute at 25℃,pH7.65
*PH：7.9
等電點(diǎn)PI：6.0
Chymotrypsin and trypsin：≤0.02%

產(chǎn)品描述：Catalyzes hydrolysis of the basic amino acids lysine,arginine and ornithine from the C-terminal position in polypeptides.A solution in 100mM sodium chloride.PMSF treated to inhibit tryptic and chymotryptic activities.
性狀：粉末。以酶原形式存在于生物體內(nèi)
用途：生化研究?？蓪?zhuān)一性地從肽鏈的C端開(kāi)始逐個(gè)降解，釋放出游離氨基酸的一類(lèi)肽鏈外切酶。羧肽酶B只水解以堿性氨基酸（如精氨酸和賴(lài)氨酸）為C末端殘基的肽鍵。
保存：-20℃

Carboxypeptidase B Product Information

Source: Porcine Pancreas
I.U.B.: 3.4.17.2

Carboxypeptidase B catalyzes hydrolysis of the basic amino acids lysine, arginine and ornithine from the C-terminal end of polypeptides. The molecular weight is 34,500 daltons, the pH optimum is 7.9, and the pI is 6.0. Carboxypeptidase B is competitively inhibited by arginine, lysine and ornithine. The enzyme is not inhibited by di-isopropylfluorophosphate (DFP), but it is inhibited by metal chelating agents, e.g., 1,10-phenanthroline.

Unit Definition: One Unit hydrolyzes one micromole of hippuryl-L-arginine per minute at 25°C, pH 7.65.

Related Products:

Carboxypeptidase Y (COY)
Chymotrypsin, TLCK-treated (CDTLCK)
Clostripain, Endo-Arg-C (CP)
Protease, Stap, Endo-Glu-C (STAP)
Trypsin, SeqENZ (TRSEQII) & Modified (TRSEQZ)Carboxypeptidase B, PMSF Treated
A solution in 100mM sodium chloride. PMSF treated to inhibit tryptic and chymotryptic activities. Chymotrypsin and trypsin are less than 0.02%.
Store at -20℃
REQUIRES SPECIAL SHIPPING: ICE

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