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Merck

L5793

Sigma-Aldrich

Leupeptin

powder, ≥95% (HPLC)

Synonim(y):

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

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About This Item

Wzór liniowy:
C20H38N6O4 · 1/2H2SO4
Numer CAS:
Masa cząsteczkowa:
475.59
Numer MDL:
Kod UNSPSC:
12352202
Identyfikator substancji w PubChem:
NACRES:
NA.77

product name

Leupeptin, BioUltra, microbial, ≥95% (HPLC)

pochodzenie biologiczne

microbial

Poziom jakości

linia produktu

BioUltra

Próba

≥95% (HPLC)

Postać

powder

rozpuszczalność

H2O: 50 mg/mL

temp. przechowywania

−20°C

ciąg SMILES

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

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

Klucz InChI

CIPMKIHUGVGQTG-VFFZMTJFSA-N

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Działania biochem./fizjol.

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.)

Komentarz do analizy

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

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Gloves, type N95 (US)


Certyfikaty analizy (CoA)

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Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Massimo Ganassi et al.
Molecular cell, 63(5), 796-810 (2016-08-30)
Stress granules (SGs) are ribonucleoprotein complexes induced by stress. They sequester mRNAs and disassemble when the stress subsides, allowing translation restoration. In amyotrophic lateral sclerosis (ALS), aberrant SGs cannot disassemble and therefore accumulate and are degraded by autophagy. However, the
Abigail Buchwalter et al.
eLife, 8 (2019-10-11)
The inner nuclear membrane (INM) is a subdomain of the endoplasmic reticulum (ER) that is gated by the nuclear pore complex. It is unknown whether proteins of the INM and ER are degraded through shared or distinct pathways in mammalian
Qinggong Wang et al.
Nature communications, 13(1), 454-454 (2022-01-26)
Melatonin receptors (MT1 and MT2 in humans) are family A G protein-coupled receptors that respond to the neurohormone melatonin to regulate circadian rhythm and sleep. Numerous efforts have been made to develop drugs targeting melatonin receptors for the treatment of
Yves R Juste et al.
Nature cell biology, 23(12), 1255-1270 (2021-12-09)
Circadian rhythms align physiological functions with the light-dark cycle through oscillatory changes in the abundance of proteins in the clock transcriptional programme. Timely removal of these proteins by different proteolytic systems is essential to circadian strength and adaptability. Here we
Zhiwei Chen et al.
Oncogenesis, 9(5), 49-49 (2020-05-15)
Carbidopa, a peripheral decarboxylase inhibitor used with L-DOPA to treat Parkinson's disease, has attracted significant interest in recent years for its anticancer effect. Increasing evidence reveals that Carbidopa can inhibit cancer cell growth and induce apoptosis through aryl hydrocarbon receptor

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