Shanghai Yaxin Biotechnology Co.,Ltd.
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Place of Origin: | Zhejiang, China (Mainland) |
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Sequencing Grade Carboxypeptidase B / Carboxypeptidase B / SRCPB
DESCRIPTION
Carboxypeptidase B catalyzes hydrolysis of the basic amino acids lysine, arginine and histidine from the
C-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 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.
MAIN FEATURES
Source |
E. Coli |
Purified by |
HPLC |
Physical form |
Lyophilized powder |
Specific activity |
NLT 200 units/mg pro |
Contaminant activity |
No trypsin, chymotrypsin, carboxypeptidase A, or other proteases contaminant. |
APPLICATION
Protein structure and sequence analysis, such as hydrolyze basic amino acids lysine, arginine and
histidine from the C-terminal end of polypeptides.
Antibody quality control.
RECOMMEND USAGE
To prepare 1-10mg/ml carboxypeptidase B with sterile water or 25mM Tris-HCl pH 7.5. The ratio to aimed
protein is 1:50 to 1:1000 (w/w), the optimum pH is pH7-9.
STORAGE AND STABILITY
Recommend recombinant carboxypeptidase B lyophilized powder stored under 2-8 in sealed container.
It is stable within 24 months.
After dissolved, it should be stored under -20, It is stable within 24 months and no activity lose after 10
times repeated freezing and thawing.
RELATED PRODUCT
Recombinant Trypsin (sequencing grade);
Recombinant Carboxypeptidase B (sequencing grade);
Recombinant Chymotrypsin (sequencing grade);
V8 (sequencing grade).