추천 제품
유형
Type I-S
Quality Level
양식
essentially salt-free, lyophilized powder
특이 활성도
≥40 units/mg protein
분자량
25 kDa
정제법
3× crystallization
solubility
1 mM HCl: soluble 2.0 mg/mL, clear
UniProt 수납 번호
저장 온도
−20°C
유전자 정보
cow ... CTRB1(618826)
유사한 제품을 찾으십니까? 방문 제품 비교 안내
관련 카테고리
애플리케이션
α-Chymotrypsin from bovine pancreas has been used in a study to investigate protein extraction by Winsor-III microemulsion systems. α-Chymotrypsin from bovine pancreas has also been used in a study to investigate a new specific fullerene-based fluorescent probe for trypsin.
The product has been used to investigate the inhibitory effect of several ether oligomers against the enzyme. It has also been used to cleave pro-phenoloxidase in order to estimate total phenoloxidase in haemolymph. Furthermore, the enzyme has been used as a positive control in chymotrypsin assays using salivary gland and anterior midgut extracts of Deraeocoris nigritulus.
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, as well as 10 mM of 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
Prepared free of autolysis products and low molecular weight contaminants.
The powder may be reconstituted in 1 mM HCl at 2 mg/mL concentration to form a clear solution.
분석 메모
Minimum 85% protein
Protein determined by E1%/280
기타 정보
View more information on chymotrypsin at www.sigma-aldrich.com/enzymeexplorer
기질
제품 번호
설명
가격
저해제
제품 번호
설명
가격
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
이미 열람한 고객
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.