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C1261

Sigma-Aldrich

Carboxypeptidase A−Agarose

ammonium sulfate suspension, ≥6 units/mL packed gel, 25 °C, enzyme from bovine pancreas

Synonym(s):

Carboxypolypeptidase, Peptidyl-L-amino-acid hydrolase

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About This Item

Enzyme Commission number:
3.4.17.1 (BRENDA, IUBMB)
MDL number:
MFCD00130718
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

enzyme from bovine pancreas

form

ammonium sulfate suspension

specific activity

≥6 units/mL packed gel, 25 °C

mol wt

~35,250

matrix

beaded agarose

storage temp.

2-8°C

General description

Carboxypeptidase A-agarose product is prepared by the immobilization of carboxypeptidase A, originally isolated from the bovine pancreas, to activated 4% crosslinked beaded agarose.

Biochem/physiol Actions

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 β-phenylpropionate and indole acetate.
Carboxypeptidase A is attached covalently to agarose or aldehyde and is effective for immobilization studies.

Unit Definition

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

Physical form

Suspension in 2.0 M (NH4)2SO4, pH 7

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Statements

H315,H319,H334,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Sahar I Da'as et al.
Blood, 119(15), 3585-3594 (2012-03-01)
We used the opportunities afforded by the zebrafish to determine upstream pathways regulating mast cell development in vivo and identify their cellular origin. Colocalization studies demonstrated zebrafish notch receptor expression in cells expressing carboxypeptidase A5 (cpa5), a zebrafish mast cell-specific
Hilana Salete Silva Oliveira et al.
Journal of food science, 76(5), C755-C759 (2012-03-16)
This paper proposes a method to enzymatically treat poor-quality cocoa almonds (known as "slate") to ensure the formation of chocolate flavor precursors. The production of flavor precursors improves the quality of these almonds, which are usually responsible for the low
Sandeep Chakraborty et al.
PloS one, 7(2), e32011-e32011 (2012-02-24)
Promiscuity, the basis for the evolution of new functions through 'tinkering' of residues in the vicinity of the catalytic site, is yet to be quantitatively defined. We present a computational method Promiscuity Indices Estimator (PROMISE)--based on signatures derived from the
Zhenhua Li et al.
BMC bioinformatics, 13, 51-51 (2012-03-29)
Water is an integral part of protein complexes. It shapes protein binding sites by filling cavities and it bridges local contacts by hydrogen bonds. However, water molecules are usually not included in protein interface models in the past, and few
Arthur A Topilow et al.
Cancer biomarkers : section A of Disease markers, 10(1), 27-33 (2012-02-03)
Pancreatic cancer has a dismal prognosis because it is often diagnosed at an advanced stage. Therefore, serological biomarkers are eagerly sought for early detection. The digestive enzyme pro-carboxypeptidase A (PCPA) may be able to fill this role. The purpose of
View All Related Papers

Protocols

Enzymatic Assay of Carboxypeptidase

Objective: To standardize a procedure for the assay of Carboxypeptidase A

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