콘텐츠로 건너뛰기
Merck

L2884

Leupeptin

powder, ≥90% (HPLC)

동의어(들):

Leupeptin hemisulfate salt, Acetyl-Leu-Leu-Arg-al, N-Acetyl-L-leucyl-L-leucyl-L-argininal hemisulfate salt

조직 및 계약 가격을 보려면 로그인를 클릭합니다.

크기 선택

제품정보 (DICE 배송 시 비용 별도)

Linear Formula:
C20H38N6O4 · 1/2H2SO4
CAS 번호:
103476-89-7
Molecular Weight:
475.59
UNSPSC Code:
12352202
PubChem Substance ID:
24896328
NACRES:
NA.77
MDL number:
MFCD00037012

주요 문서

모든 문서 보기
기술 서비스
도움이 필요하신가요? 저희 숙련된 과학자 팀이 도와드리겠습니다.
도움 문의
기술 서비스
도움이 필요하신가요? 저희 숙련된 과학자 팀이 도와드리겠습니다.
도움 문의

제품 이름

Leupeptin, microbial, ≥90% (HPLC)

SMILES string

OS(O)(=O)=O.CC(C)C[C@H](NC(C)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C=O.CC(C)C[C@H](NC(C)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C=O

InChI key

CIPMKIHUGVGQTG-VFFZMTJFSA-N

InChI

1S/2C20H38N6O4.H2O4S/c2*1-12(2)9-16(24-14(5)28)19(30)26-17(10-13(3)4)18(29)25-15(11-27)7-6-8-23-20(21)22;1-5(2,3)4/h2*11-13,15-17H,6-10H2,1-5H3,(H,24,28)(H,25,29)(H,26,30)(H4,21,22,23);(H2,1,2,3,4)/t2*15-,16-,17-;/m00./s1

biological source

microbial

assay

≥90% (HPLC)

form

powder

solubility

H2O: 10 mM (Solutions are stable for a week at 4 °C. Stock solutions are stable up to 6 months at −20 °C.)
H2O: 50 mg/mL

storage temp.

−20°C

Quality Level

300

유사한 제품을 찾으십니까? 방문 제품 비교 안내

Analysis Note

Leupeptin gives multiple peaks on HPLC because of the formation of tautomeric isomers in solution. Majority of contaminating peptide is racemized leupeptin.

Biochem/physiol Actions

Inhibitor of serine and cysteine proteases. Inhibits plasmin, trypsin, papain, calpain, and cathepsin B. Does not inhibit pepsin, cathepsins A and D, thrombin, or α-chymotrypsin. Effective concentration 10-100 μM.
Inhibitor of serine and cysteine proteases. Inhibits plasmin, trypsin, papain, calpain, and cathepsin B. Does not inhibit pepsin, cathepsins A and D, thrombin, or α-chymotrypsin. Effective concentration 10-100 μM. There have been numerous studies using leupeptin to protect against hearing loss caused by acoustic overstimulation or the ototoxic antibiotic gentamicin. (Loss of cochlear hair cells is believed to be mediated by calpain.)

General description

Leupeptin, or N-acetyl-L-leucyl-L-leucyl-L-argininal, is a naturally occurring tripeptide that acts particularly as a serine protease inhibitor and as a cysteine protease inhibitor. Its mechanism of action involves structurally similar covalent binding reactions:
  • In the active site of serine proteases, leupeptin forms a covalent hemiacetal adduct between the aldehyde group of leupeptin and the hydroxyl group of a serine residue in the enzyme active site.
  • In the active site of cysteine proteases, the electrophilic (aldehyde) carbon of leupeptin forms a comparable bond with the sulfur atom of a cysteine residue in the enzyme active site.

저장 등급

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
0000438976
0000438976
0000453303
0000453303
0000463713

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

COA 검색

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Shohreh Majd et al.
BMC cell biology, 19(1), 7-7 (2018-06-21)
Cellular energy failure in high metabolic rate organs is one of the underlying causes for many disorders such as neurodegenerative diseases, cardiomyopathies, liver and renal failures. In the past decade, numerous studies have discovered the cellular axis of LKB1/AMPK/mTOR as
Yang Yang et al.
Journal of dairy science, 100(5), 4014-4024 (2017-03-13)
Adequate lipid synthesis by the mammary gland during lactation is essential for the survival of mammalian offspring. Cell death-inducing DNA fragmentation factor-α-like effector C (CIDEC) is a lipid droplet-associated protein and functions to promote lipid accumulation and inhibit lipolysis in
Satoshi Nakamura et al.
Scientific reports, 10(1), 12242-12242 (2020-07-24)
Vitamin D deficiency is a recognized risk factor for sarcopenia development, but mechanisms underlying this outcome are unclear. Here, we show that low vitamin D status worsens immobilization-induced muscle atrophy in mice. Mice globally lacking vitamin D receptor (VDR) exhibited
Wibke Schwarzer et al.
Human molecular genetics, 18(21), 4013-4021 (2009-07-31)
Mutations in ROR2 cause dominant brachydactyly type B (BDB1) or recessive Robinow syndrome (RRS), each characterized by a distinct combination of phenotypic features. We here report a novel nonsense mutation in ROR2 (c.1324C>T; p.R441X) causing intracellular protein truncation in a
Philipp A Jaeger et al.
Molecular cell, 69(2), 321-333 (2018-01-21)
We have developed a highly parallel strategy, systematic gene-to-phenotype arrays (SGPAs), to comprehensively map the genetic landscape driving molecular phenotypes of interest. By this approach, a complete yeast genetic mutant array is crossed with fluorescent reporters and imaged on membranes
모든 관련된 서류 보기

문서

ReadyShield Phosphatase and Protease Inhibitor Cocktail FAQ

ReadyShield® phosphatase and protease inhibitor cocktail FAQ for sample protection in a variety of cell types and tissue extracts, including mammalian, plant, and microbial samples. Our ReadyShield® Protease Inhibitor Cocktail is a non-freezing solution that contains inhibitors with a broad specificity for serine, cysteine, acid proteases and aminopeptidases.

자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..

고객지원팀으로 연락바랍니다.