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CPB (carboxypeptidase B), Active

Recombinant rat tag-free CPB (109-end) was expressed in yeast cells.
Catalog No. C560-31N

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Catalog No. Pack Size Price (USD)
C560-31N-05 0.5 mg $160
C560-31N-5 5 mg $380
C560-31N-50 50 mg $1590
C560-31N-250 250 mg $2690
C560-31N-BULK BULK Contact Us  


Carboxypeptidase B (CPB) is a metal-containing pancreatic endopeptidase that catalyzes the successive release of basic carboxy-terminal residues, such as Arg and Lys. CPB also targets other amino acids, albeit at a slower rate. These secondary target residues include valine, leucine, isoleucine, asparagine, glycine, and glutamine. CPB depends on Zn2+ to promote enzymatic activity. Conversely, the enzyme is inhibited by some heavy metals, including Cu2+, Hg2+; metal chelating agents such as EDTA and competing Arg and Lys residues. CPB functions between pH 5-12, with an optimal pH of 8. Enzyme activity also increases with rises in temperature. CPB is used in the production of recombinant human insulin and monoclonal antibody/IgG1 (mAb) processing.

Gene Aliases:

CPB1; CPB2; Carboxylase B

Sample Data:


Sample Purity Data. For specific information on a given lot, see related technical data sheet.

Enzyme Commission Number:


Storage, Stability, and Shipping:

Store product at –20oC for up to 1 year. Aliquot enzymes to avoid freeze / thaw cycles.

Digestion Conditions:

Catalytic pH range: 5.0~12.0; maximum temperature: 60oC

Product Datasheets

Safety Datasheet

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