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95% Purity Sequencing Grade Recombinant Carboxypeptidase B 9025-24-5

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95% Purity Sequencing Grade Recombinant Carboxypeptidase B 9025-24-5

Brand Name : yaxinbio
Model Number : SRCPB01
Certification : NSF ISO 9001
Place of Origin : China
MOQ : 100ug
Packaging Details : 100ug
brand : yaxinbio
cas : 9025-24-5
product : Sequencing grade Carboxypeptidase B
form : a genetically engineered protein expressed in E.coli
Source : Recombinant E. coli
Specific activity : ≥200 units/mg pro.
SDS-PAGE : Single major band
Purity(HPLC) : ≥ 95%
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Sequencing grade recombinant Carboxypeptidase B a genetically engineered protein expressed in E.coli

Sequencing Grade Carboxypeptidase B

Catalog Number:SRCPB01


Storage temperature: 2-8℃

Source: Sequencing grade recombinant carboxypeptidase B is a genetically engineered protein expressed in E.coli

Protein Sequence:The amino acid sequence of recombinant carboxypeptidase B is identical to rat carboxypeptidase B


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, pI is 6.0 and the optimum pH is 7.5-9.0. Carboxypeptidase B is competitively inhibited by arginine and lysine. The enzyme is also inhibited by metal chelating agents, e.g., EDTA.


SourceRecombinant E. coli
AppearanceWhite or off white, or yellowish powder
Specific activity≥200 units/mg pro.
SDS-PAGESingle major band
Molecular Weight(SDS-PAGE)33.8±3.4 kDa
Purity(HPLC)≥ 95%


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 7.5-9.0.


Stability of storage: Sequencing grade carboxypeptidase B lyophilized should be stored under 2-8℃ in sealed container. It is stable within 24 months.After dissolved with sterile water or 25mM Tris-HCl, it should be stored under -20℃. Avoid repeated freezing and thawing.

Stability of transport: The product is stable by blue ice insulation transport.


Sequence grade recombinant protein: high specificity,good stability.

Animal origin free: Sequencing grade carboxypeptidase B is no exogenous virus contamination,and any animal origin material is not used in the production process.

Stable quality: Mass production can ensure stable and continuous batch production.It is no difference between the batch and the product quality is stable.

High purity: Higher specific activity.Host protein residues is less than the limits of biological products.

Lyophilized powder: The product is lyophilized powder and is easy to store and transport.

Compliance with regulatory requirements: Production equipment and production environment comply with relevant regulatory requirements, and the production process is in full compliance with NSF ISO 9001: 2015 quality system and GMP guidelines.

Complete quality documents: we can provide relevant regular support files in according to customers’ requirement.


1) Determination of protein C-terminal basic amino acids such as arginine, lysine and histidine.

2) detection of antibody basic peak.


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