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C9268

Sigma-Aldrich

Carboxypeptidase A from bovine pancreas

(Type II-PMSF treated), ≥50 units/mg protein, ready-to-use solution

Synonyme(s) :

Carboxypolypeptidase, Peptidyl-L-amino-acid hydrolase

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About This Item

Numéro CAS:
11075-17-5
Numéro de classification (Commission des enzymes):
3.4.17.1 (BRENDA, IUBMB)
Numéro MDL:
MFCD00130718
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Qualité

Proteomics Grade
 (Type II-PMSF treated)

Forme

ready-to-use solution

Activité spécifique

≥50 units/mg protein

Poids mol.

~35 kDa

Produit purifié par

2× crystallization

Impuretés

≤0.05 BTEE units/mg protein chymotrypsin
≤10 BAEE units/mg protein trypsin

Température de stockage

2-8°C

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Catégories apparentées

Application

Carboxypeptidase A from bovine pancreas has been used in a study to investigate the expression of a soluble and activatable form of bovine procarboxypeptidase A in Escherichia coli. Carboxypeptidase A from bovine pancreas has also been used in a study to investigate the isolation and partial characterization of precursor forms of ostrich carboxypeptidase.
The enzyme from Sigma has been used as a comparison to study the specificity of Metarhizium anisopliae carboxypeptidase A (MeCPA). MeCPA had been genetically engineered to facilitate the removal of polyhistidine tags from the C-termini of recombinant proteins. It has also been used to de-tyrosinate α-tubulin, in vitro, in order to induce high affinity to ethyl-N-phenylcarbamate (EPC) sepharose.

Actions biochimiques/physiologiques

Carboxypeptidase as isolated from bovine pancreas glands is a metalloenzyme that contains 1 g atom of zinc per mole of protein. It catalyzes the hydrolysis of the carboxyl-terminal peptide bond in peptides and proteins. It is primarily specific to aromatic and hydrophobic side chains such as phenylalanine, tryptophan or leucine. The enzyme also exhibits esterase activity. It is inhibited by beta-phenylpropionate and indole acetate.

Définition de l'unité

One unit will hydrolyze 1.0 μmole of hippuryl-L-phenylalanine per min at pH 7.5 at 25 °C.

Notes préparatoires

Treated with phenylmethylsulfonyl fluoride to eliminate trypsin and chymotrypsin activity. Dialyzed and recrystallized: aqueous suspension with toluene added.

Remarque sur l'analyse

Protein determined by E1%/278

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H334

Classification des risques

Resp. Sens. 1

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Bodo Wiesler et al.
The Plant journal : for cell and molecular biology, 32(6), 1023-1032 (2002-12-21)
Auxin controls the orientation of cortical microtubules in maize coleoptile segments. We used tyrosinylated alpha-tubulin as a marker to assess auxin-dependent changes in microtubule turnover. Auxin-induced tyrosinylated alpha-tubulin, correlated with an elevated sensitivity of growth to antimicrotubular compounds such as
Laurence Lafanechère et al.
Methods in molecular biology (Clifton, N.J.), 777, 71-86 (2011-07-21)
Alpha tubulin comprises a C-terminal tyrosine residue, which is subject to cyclic removal from the peptide chain by a still uncharacterized carboxypeptidase and re-addition to the chain by a tubulin tyrosine ligase. We have shown in different animal or human
Brian P Austin et al.
Protein expression and purification, 77(1), 53-61 (2010-11-16)
Carboxypeptidases may serve as tools for removal of C-terminal affinity tags. In the present study, we describe the expression and purification of an A-type carboxypeptidase from the fungal pathogen Metarhizium anisopliae (MeCPA) that has been genetically engineered to facilitate the
Heiko Witt et al.
Nature genetics, 45(10), 1216-1220 (2013-08-21)
Chronic pancreatitis is an inflammatory disorder of the pancreas. We analyzed CPA1, encoding carboxypeptidase A1, in subjects with nonalcoholic chronic pancreatitis (cases) and controls in a German discovery set and three replication sets. Functionally impaired variants were present in 29/944
Kaia Kukk et al.
Journal of biotechnology, 231, 224-231 (2016-06-19)
Vertebrate prostaglandin H synthases (PGHSs) are membrane-bound disulphide-containing hemoglycoproteins. Therefore, eukaryotic expression systems are required for the production of recombinant PGHSs. Recently we announced the expression of human PGHS-2 (hPGHS-2) in the yeast Pichia pastoris. Here we report improved production
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Protocoles

Enzymatic Assay: Carboxypeptidase

Carboxypeptidase A activity measured via continuous spectrophotometric rate determination assay with hippuryl-L-phenylalanine substrate.

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