C4129
α-Chymotrypsin from bovine pancreas
Type II, lyophilized powder, ≥40 units/mg protein
Sinónimos:
α-chymotrypsin A and B, alpha-chymotrypsin
Iniciar sesión para ver los precios por organización y contrato.
Seleccione un Tamaño
Acerca de este artículo
Número CAS:
UNSPSC Code:
12352204
eCl@ss:
42010112
EC Number:
232-671-2
NACRES:
NA.54
MDL number:
Specific activity:
≥40 units/mg protein
Servicio técnico
¿Necesita ayuda? Nuestro equipo de científicos experimentados está aquí para ayudarle.
Permítanos ayudarleServicio técnico
¿Necesita ayuda? Nuestro equipo de científicos experimentados está aquí para ayudarle.
Permítanos ayudarletype
Type II
Quality Level
form
lyophilized powder
specific activity
≥40 units/mg protein
mol wt
25 kDa
composition
protein, ≥85%
color
white to off-white
UniProt accession no.
application(s)
diagnostic assay manufacturing
storage temp.
−20°C
Gene Information
cow ... CTRB1(618826)
¿Está buscando productos similares? Visita Guía de comparación de productos
Categorías relacionadas
Application
The enzyme from Sigma has been used to study the structure-function relationship in glycosylated α-chymotrypsin using immobilized metal-ion affinity chromatography (IMAC) and immobilized metal-ion affinity capillary electrophoresis (IMACE).
Biochem/physiol Actions
α-Chymotrypsin is a serine peptidase and has 241 amino acid residues contained in three polypeptide chains (A chain-13 residues, B chain-131 residues, and C chain-97 residues) linked by disulfide bridges. Molecular weight of this enzyme is found to be 25 kDa. The pI is 8.75. It selectively hydrolyzes peptide bonds on the C-terminal side of tyrosine, phenylalanine, tryptophan, and leucine. Ca2+ activates and stabilizes the enzyme. The enzyme is inhibited by diisopropyl fluorophosphate (DFP), phenylmethanesulfonyl fluoride (PMSF), N-p-tosyl-L-phenylalanine chloromethyl ketone (TPCK), chymostatin, aprotinin, α1-antitrypsin, and α2-macroglobulin, 10 mM Cu2+ and Hg2+.
A serine protease that hydrolyzes peptide bonds with aromatic or large hydrophobic side chains (Tyr, Trp, Phe, Met, Leu) on the carboxyl end of the bond.
Preparation Note
Produced from 3× crystallized chymotrypsinogen
Analysis Note
Protein determined by E1%/280
Other Notes
One unit will hydrolyze 1.0 μmole of BTEE per min at pH 7.8 at 25 °C.
View more information on chymotrypsin at www.sigma-aldrich.com/enzymeexplorer
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
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Elija entre una de las versiones más recientes:
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Antonio Jesús Vizcaíno et al.
Marine drugs, 18(6) (2020-06-24)
This piece of research evaluates the presence of protease inhibitors in the macroalga Ulva ohnoi and provides an initial overview of their mode of action. The ability of Ulva protease inhibitors to inhibit digestive proteases of three marine fish species
Xiaojing Du et al.
Journal of the science of food and agriculture, 98(8), 3140-3147 (2017-12-08)
To investigate the change of bioavailability and structure of myofibrillar proteins during Nanjing dry-cured duck processing, carbonyl content, sulfhydryl (SH) group, disulfide (SS) group, sodium dodecyl sulfate polyacrylamide gel electrophoresis, surface hydrophobicity, secondary structures and in vitro digestibility were determined.
Ines Atuh Ngoh et al.
Experimental parasitology, 218, 107969-107969 (2020-08-29)
Invasion of human red blood cells (RBCs) by Plasmodium parasites is a crucial yet poorly characterised phenotype. Two-color flow cytometry (2cFCM) promises to be a very sensitive and high throughput method for phenotyping parasite invasion. However, current protocols require high
Shannon Gwala et al.
Food & function, 11(3), 2509-2521 (2020-03-07)
Postharvest storage of legumes is a strategy to ensure food security. However, the hard-to-cook phenomenon, partly explained by pectin-cation-phytate theory, may develop during storage. Based on this theory, minerals could be redistributed within the matrix, affecting the concentration of free/bound
Robert Winkler
Rapid communications in mass spectrometry : RCM, 24(3), 285-294 (2010-01-06)
Electrospray ionization (ESI) ion trap mass spectrometers with relatively low resolution are frequently used for the analysis of natural products and peptides. Although ESI spectra of multiply charged protein molecules also can be measured on this type of devices, only
Contenido relacionado
Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.
Póngase en contacto con el Servicio técnico