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Merck
모든 사진(5)

문서

C4129

Sigma-Aldrich

α-Chymotrypsin from bovine pancreas

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

동의어(들):

α-chymotrypsin A and B, alpha-chymotrypsin

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About This Item

CAS Number:
효소 위원회 번호:
EC Number:
MDL number:
UNSPSC 코드:
12352204
eCl@ss:
42010112
NACRES:
NA.54

유형

Type II

Quality Level

형태

lyophilized powder

특이 활성도

≥40 units/mg protein

분자량

25 kDa

구성

protein, ≥85%

색상

white to off-white

UniProt 수납 번호

응용 분야

diagnostic assay manufacturing

저장 온도

−20°C

유전자 정보

유사한 제품을 찾으십니까? 방문 제품 비교 안내

관련 카테고리

애플리케이션

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).

생화학적/생리학적 작용

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.

단위 정의

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

제조 메모

Produced from 3× crystallized chymotrypsinogen

분석 메모

Protein determined by E1%/280

기타 정보

픽토그램

Health hazardExclamation markEnvironment

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

개인 보호 장비

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


시험 성적서(COA)

제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.

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문서 라이브러리 방문

Antonio Jesús Vizcaíno et al.
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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
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
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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
K Y Jiang et al.
Biochimica et biophysica acta, 1433(1-2), 198-209 (1999-08-14)
Chemical glycosylation of bovine alpha-chymotrypsin, by a glucosamine adduct on the carboxyl group, results in the modification of its catalytic activity. The structural alterations of alpha-chymotrypsin resulting from its glycosylation are studied by immobilized metal-ion affinity chromatography (IMAC) and immobilized
Olivia Ogilvie et al.
MethodsX, 7, 101076-101076 (2020-10-10)
Mass spectrometry (MS) is an emerging method to determine the accurate concentration of immunogenic gluten peptides. It is of interest to quantify specific peptides within the gluten peptidome due to the role they play in the activation of the celiac

문서

Analytical Enzyme Chymotrypsin: Chymotrypsin is produced in the acinar cells of the pancreas as the inactive precursor, chymotrypsinogen.

프로토콜

Follow our procedure for the determination of a chymotrypsin activity. This enzymatic assay of alpha chymotrypsin guides you through the entire process and necessary calculations.

Chromatograms

application for HPLC

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