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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-671-2
MDL number:
Product Name
α-Chymotrypsin from human pancreas, lyophilized powder
biological source
human pancreas
form
lyophilized powder
mol wt
25 kDa
packaging
vial of ≥10 BTEE units
UniProt accession no.
storage temp.
−20°C
Quality Level
Gene Information
human ... CTRB1(1504)
Related Categories
Analysis Note
Protein determined by A1%/280
Application
α-Chymotrypsin from human pancreas has been used to test inhibition by N-alkyl isatins against mammalian serine proteases.
Human α-chymotrypsin has been used in a study to assess the quantitative structure-activity relationships for organophosphates binding to trypsin and chymotrypsin. Human α-chymotrypsin has also been used in a study to investigate the direct detection of native proteins in biological matrices using extractive electrospray ionization mass spectrometry.
Biochem/physiol Actions
A serine protease that hydrolyzes peptide bonds with aromatic or large hydrophobic side chains (Tyr, Trp, Phe, Met) on the carboxyl end of the bond.
General description
α-Chymotrypsin belongs to the trypsin family of serine proteases. It is secreted as an inactive precursor chymotrypsinogen to the intestine. The cleavage of peptide bond at amino acid 148 forms α-chymotrypsin. Chymotrypsinogen is encoded by the gene CTRB1 and is mapped to 16q23.1 in the human chromosome.
Other Notes
One unit will hydrolyze 1.0 μmole of BTEE per min at pH 7.8 at 25°C.
signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Genome-wide association study identifies inversion in the CTRB1-CTRB2 locus to modify risk for alcoholic and non-alcoholic chronic pancreatitis
Rosendahl J, et al.
Gut, 67(10), 1855-1863 (2018)
Parallel synthesis of isatin-based serine protease inhibitors
Shuttleworth SJ, et al.
Bioorganic & Medicinal Chemistry Letters, 10(22), 2501-2504 (2000)
Crystal structure of delta-chymotrypsin bound to a peptidyl chloromethyl ketone inhibitor
Mac Sweeney A, et al.
Acta Crystallographica Section D, Biological Crystallography, 56(3), 280-286 (2000)
Sergey Y Vakhrushev et al.
Molecular & cellular proteomics : MCP, 12(4), 932-944 (2013-02-13)
Characterizing protein GalNAc-type O-glycosylation has long been a major challenge, and as a result, our understanding of this glycoproteome is particularly poor. Recently, we presented a novel strategy for high throughput identification of O-GalNAc glycosites using zinc finger nuclease gene-engineered
Leen M 't Hart et al.
Diabetes, 62(9), 3275-3281 (2013-05-16)
The incretin hormone glucagon-like peptide 1 (GLP-1) promotes glucose homeostasis and enhances β-cell function. GLP-1 receptor agonists (GLP-1 RAs) and dipeptidyl peptidase-4 (DPP-4) inhibitors, which inhibit the physiological inactivation of endogenous GLP-1, are used for the treatment of type 2
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