C4129

α-Chymotrypsin from bovine pancreas

Type II, lyophilized powder, ≥40 units/mg protein

• Sinônimo(s): α-chymotrypsin A and B, alpha-chymotrypsin
• CAS Number: 9004-07-3
• Número CE: 3.4.21.1 (BRENDA, IUBMB)
• Número CE: 232-671-2
• Número MDL: MFCD00130481
• Código UNSPSC: 12352204
• eCl@ss: 42010112
• NACRES: NA.54

Propriedades

• tipo: Type II
• Nível de qualidade: 300
• Formulário: lyophilized powder
• atividade específica: ≥40 units/mg protein
• peso molecular: 25 kDa
• composição: protein, ≥85%
• cor: white to off-white
• nº de adesão UniProt: P00767
• aplicação(ões): diagnostic assay manufacturing
• temperatura de armazenamento: −20°C
• Informações sobre genes: cow ... CTRB1(618826)

Descrição

Aplicação

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).

Ações bioquímicas/fisiológicas

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.

Definição da unidade

One unit will hydrolyze 1.0 μmole of BTEE per min at pH 7.8 at 25 °C.

Nota de preparo

Produced from 3× crystallized chymotrypsinogen

Nota de análise

Protein determined by E1%/280

Outras notas

View more information on chymotrypsin at www.sigma-aldrich.com/enzymeexplorer

Informações de segurança

• Pictogramas: GHS08,GHS07,GHS09
• Palavra indicadora: Danger
• Frases de perigo: H302,H315,H319,H334,H335,H400
• Declarações de precaução: P261 - P264 - P273 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Faceshields, Gloves