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Key Documents

Safety Information

SRP3302

Sigma-Aldrich

CARBOXYPEPTIDASE-B rat

recombinant, expressed in E. coli, ≥95% (SDS-PAGE), ≥95% (HPLC)

Synonym(s):

Cpb1

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About This Item

UNSPSC Code:
12352204
NACRES:
NA.32

biological source

rat

recombinant

expressed in E. coli

Assay

≥95% (HPLC)
≥95% (SDS-PAGE)

form

lyophilized

mol wt

35.1 kDa

packaging

pkg of 25 μg

impurities

<0.1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

Q9EQV9

shipped in

wet ice

storage temp.

−20°C

Gene Information

rat ... Cpb2(113936)

General description

Cpb2 (carboxypeptidase B2), also known as thrombin-activatable fibrinolysis, is secreted as a plasma zymogen known as procarboxypeptidase B. Recombinant rat Carboxypeptidase-B is a 35.1 kDa protein consisting of 307 amino acids.

Biochem/physiol Actions

Cpb2 (carboxypeptidase B2) enzyme catalyzes the release of basic amino acids, arginine and lysine, from the C-terminal of proteins and peptides. It also functions as an esterase against hippuryl-n-argininic acid.

Physical form

Lyophilized from 20 mM Tris, pH 8.0 + 50 mM NaCl.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SRP3302-25UG:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Carboxypeptidase B inhibitors reduce tissue factor-induced renal microthrombi in rats.
Muto Y, et al.
European Journal of Pharmacology, 461(2-3), 181-189 (2003)
The kinetics of carboxypeptidase B activity.
E C WOLFF et al.
The Journal of biological chemistry, 237, 3094-3099 (1962-10-01)
E Clauser et al.
The Journal of biological chemistry, 263(33), 17837-17845 (1988-11-25)
Nucleotide sequencing of a rat carboxypeptidase B (CPB) cDNA and direct sequencing of the CPB mRNA via primer extension on pancreatic polyadenylated RNA has yielded the complete amino acid sequence of rat CPB. The rat enzyme is synthesized as a

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