科研试剂 蛋白酶S Protease S Aureus 66676-43-5 厂家现货

英文名称：Protease S Aureus；Endoproteinase Glu-C from Staphylococcus aureus V8；V8 Protease

其他名称：V8蛋白酶S

CAS号：66676-43-5

级别：BR

来源：Staph aureus V8

Activity：≥500units/mg

活力定义：One Unit causes a change of 0.001 A₂₈₀ nm per minute at 37℃, pH 7.8 using casein as the substrate

产品描述：Protease S. aureus V8 (Endoproteinase-Glu-C) specifically cleaves peptide bonds on the COOH-terminal side of either aspartic or glutamic acids. In the presence of ammonium, the enzyme specificity is limited to glutamic sites. It has a molecular weight of 27,000 daltons and optimum pH's of 4.0 and 7.8 with hemoglobin as the substrate. Protease S. aureus V8 is inhibited by diisopropylfluorophosphate and monovalent anions such as F^-, Cl^-, CH₃COO^- and NO³. Enzyme activity is determined by the casein digestion assay described by Drapeau (Methods Enzymol., 45, 469, 1976).

性状：粉末。

用途：生化研究。

保存：2～8℃

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