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C9584

Sigma-Aldrich

Carboxypeptidase B from porcine pancreas

lyophilized powder

Sinônimo(s):

Peptidyl-L-lysine(L-arginine) hydrolase, Protaminase

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About This Item

Número CAS:
9025-24-5
Número da licença da enzima:
3.4.17.2 (BRENDA, IUBMB)
Número CE:
232-788-9
Número MDL:
MFCD00081476
Código UNSPSC:
12352204
ID de substância PubChem:
24893175
NACRES:
NA.54

fonte biológica

Porcine pancreas

grau

Proteomics Grade

forma

lyophilized powder

atividade específica

≥125 units/mg protein

peso molecular

34,000 Da± 600

purificado por

affinity chromatography

composição

Protein, 40-70%

atividade externa

carboxypeptidase A ≤1%
chymotrypsin ≤0.1%
trypsin ≤5%

temperatura de armazenamento

−20°C

InChI

1S/C31H38N4O7S/c1-20(32-26(36)15-16-27(37)38)28(39)33-21(2)30(41)35-17-9-14-25(35)29(40)34-24(18-22-10-5-3-6-11-22)31(42)43-19-23-12-7-4-8-13-23/h3-8,10-13,20-21,24-25H,9,14-19H2,1-2H3,(H,32,36)(H,33,39)(H,34,40)(H,37,38)

chave InChI

TWURVFFNODFJBJ-UHFFFAOYSA-N

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Aplicação

Carboxypeptidase B has been used in a study to develop a non-invasive pregnancy assay for use in both captive and wild polar bears. Carboxypeptidase B has been used in a study that identified new potential biomarkers of acute pancreatitis.
The enzyme from Sigma has been used to develop homogeneous time-resolved fluorescence (HTRF) assay for measuring carboxypeptidase B activity in a miniaturized high-throughput screening format. It has been used to evaluate the impact of the C-terminal lysine(s) in human plasminogen binding to Bifidobacterium. The effect of treatment with carboxypeptidase B, which is a C-terminal lysine-specific endopeptidase, is measured using flow cytometry analysis.

Ações bioquímicas/fisiológicas

Carboxypeptidase B is a proteolytic enzyme capable of rapidly hydrolyzing peptide bonds to release certain carboxyl-terminal basic amino acids from peptides and proteins. Its molecular mass is 34,300±600 Da. It contains one non-dialyzable gram atom of zinc per mole. The enzyme activity is inhibited by metal chelating agents 1, 10-phenanthroline, 8-hydroxyquinoline-5-sulfonic acid, and 2,2′-dipyridyl.

Embalagem

Package size based on protein content

Definição da unidade

One unit will hydrolyze 1.0 μmole of hippuryl-L-arginine per min at pH 7.65 at 25 °C.

forma física

Contains HEPES buffer salts, zinc chloride and carbohydrate

Nota de preparo

Treated with protease inhibitor, AEBSF, to eliminate serine protease activity.

Nota de análise

Protein determined by biuret.

Pictogramas

Health hazardExclamation mark
GHS08,GHS07

Palavra indicadora

Danger

Frases de perigo

H315,H319,H334,H335

Declarações de precaução

P302 + P352 - P305 + P351 + P338

Classificações de perigo

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves

Certificados de análise (COA)

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Marc Ferrer et al.
Analytical biochemistry, 317(1), 94-98 (2003-05-06)
An epitope-unmasking, homogeneous time-resolved fluorescence (HTRF) assay has been developed for measuring carboxypeptidase B (CPB) activity in a miniaturized high-throughput screening format. The enzyme substrate (biotin-RYRGLMVGGVVR-OH) is cleaved by CPB at the C terminus, causing release of the C-terminal Arg
E Curry et al.
Theriogenology, 78(2), 308-314 (2012-04-28)
Currently, there is no method of accurately and non-invasively diagnosing pregnancy in polar bears. Specific proteins may exhibit altered profiles in the feces of pregnant bears, but predicting appropriate candidate proteins to investigate is speculative at best. The objective of
Andrew Lee et al.
Langmuir : the ACS journal of surfaces and colloids, 27(18), 11560-11574 (2011-08-13)
This article describes the use of capillary electrophoresis (CE) to examine the influence of different cations (C(+); C(+) = Na(+) and tetra-n-alkylammonium, NR(4)(+), where R = Me, Et, Pr, and Bu) on the rates of denaturation of bovine carbonic anhydrase
Lawrence L K Leung et al.
Advances in experimental medicine and biology, 632, 61-69 (2008-11-26)
Thrombin-activatable procarboxypeptidase B (proCPB or thrombin-activatable fibrinolysis inhibitor or TAFI) is a plasma procarboxypeptidase that is activated by the thrombin-thrombomodulin complex on the vascular endothelial surface. The activated CPB removes the newly exposed carboxyl terminal lysines in the partially digested
Saurabh Chatterjee et al.
Free radical biology & medicine, 46(4), 454-461 (2008-12-04)
Post-translational modification of proteins due to exposure to radicals and other reactive species are markers of metabolic and inflammatory oxidative stress such as sepsis. This study uses the nitrone spin-trap DMPO and a combination of immuno-spin trapping and mass spectrometry
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