产品名称:胰凝乳蛋白酶原/Chymotrypsinogen A
供应商:sigma
货号:C4879
规格:500MG
产品介绍:
胰凝乳蛋白酶原 chymotrypsinogen 是胰凝乳蛋白酶的前体物质。牛的胰凝乳蛋白酶原A氨基酸残基245个,分子量24500。
白色结晶或粉末。不含盐,由牛胰中提取而得。每mg约含7000单位。可被胰蛋白酶激活,但不被胰凝乳蛋白酶激活。,生化研究。抗溃疡药。
产品说明:
Sigma C4879 α-Chymotrypsinogen A from bovine pancreas
Type II, essentially salt-free, lyophilized powder, ≥40 units/mg solid (after activation to α-chymotrypsin.)
CAS Number:9035-75-0
EC Number:232-905-3
MDL number:MFCD00130483
De
Biochem/physiol Actions
A serine protease that hydrolyzes peptide bonds with aromatic or large hydrophobic side chains (Tyr, Trp, Phe, Met) on the carboxyl end of the peptide bond.
Other Notes
View more information on chymotrypsin at Preparation Note
Derived from New Zealand-sourced pancreas.
Unit Definition
One unit will hydrolyze 1.0 μmole of BTEE per min at pH 7.8 at 25 °C.
性质
type:Type II
form:essentially salt-free, lyophilized powder
mol wt:mol wt 25,656 Da by calculation
purified by:6× crystallization
foreign activity:α-chymotrypsin ≤1 unit/mg (prior to activation by trypsin)
storage temp:-20°C
胰凝乳蛋白酶原/Chymotrypsinogen A
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