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)
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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
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시험 성적서(COA)
Lot/Batch Number
이미 열람한 고객
Olivier Renaudet et al.
Organic letters, 6(3), 397-400 (2004-01-30)
[structure: see text] Hydroxyaromatic aldehydes and ketones were used as building blocks to prepare ether oligomers. An iterative two-step protocol involving Mitsunobu coupling and carbonyl reduction provided a protecting-group-free route with high yields. Activity screening of an 84-member library against
Nathan W Bailey et al.
Biology letters, 7(2), 217-220 (2010-09-03)
Increased investment in immunity is expected to be beneficial under crowded conditions because of the greater risk of pathogen and parasite transmission, but the evolution of this facultative response relies on the ability to accurately assess social cues in the
Lakshmi Swarnalatha Jasti et al.
Biotechnology progress, 30(2), 317-323 (2014-01-23)
Allyl glycidyl ether (AGE)-ethylene glycol dimethacrylate (EGDM) copolymer with 25% crosslink density (AGE-25) shows excellent bovine serum albumin (BSA) adsorption (up to 16% (w/w)) at pH 8.0 and the adsorbed BSA is strongly bound. This protein-coated polymer provides a novel
Digestive enzymes and stylet morphology of Deraeocoris nigritulus (Uhler)(Hemiptera: Miridae) reflect adaptations for predatory habits.
Boyd Jr, D. W.
Annals of the Entomological Society of America, 96(5), 667-671 (2003)
S J Perkins et al.
The Biochemical journal, 295 ( Pt 1), 87-99 (1993-10-01)
Solution scattering is a powerful means of determining the overall arrangement of domains in the multidomain proteins of complement. the serine-proteinase domain is central to all proteolytic events during complement activation. As models of this domain, bovine beta-trypsin, trypsinogen, alpha-chymotrypsin
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.
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