Animal Components Free Carboxypeptidase B For Arg-C And lys-C Sequencing Grade

Animal Components Free Carboxypeptidase B For Arg-C And lys-C Sequencing Grade

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 33.8kD, 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

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

Prepare 1-10mg/ml carboxypeptidase B with sterile water or 25mM Tris-HCl pH 7.65. The ratio to aimed protein is 1:50 to 1:1000 (w/w), the optimum pH is pH 7-9.

Storage Instructions

Recommend recombinant carboxypeptidase B lyophilized should be 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.

Email:Zhaozhi@yaxinbio.com

       Shanghai Yaxin Biotechnology company was founded in 2008,which is a high-tech enterprise that focuses on researching and producing the recombinant proteins.YaxinBio is the first and only a company on researching and producing the recombinant carboxypeptidase B and recombinant trypsin.Animal original free enzymes are specially used in the human recombinant insulin production,and exporting abroad.

       Recombinant trypsin is used in the cell culturing process,which conforms to the 2014 USP on the usage of trypsin in the cell culture.Animal original free is very important for the production of antibody and vaccine.Usage of recombinat trypsin fundamentally solves the problem of animal original virus contamination in the human recombinant insulin production.

       YaxinBio insists on “scientific and technological innovation”,has developed with independent intellectual property rights of the products.YaxinBio obtained the support of Chinese ministry of science and technology and Shanghai innovation fund project in 2010; Recombinant trypsin,recombinant carboxypeptidase B and recombinant protein A won the Shanghai high-tech achievement transformation project in Sep.2013.