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Merck
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Key Documents

E64-RO

Roche

E-64

N-[N-(L-3-Trans-carboxirane-2-carbonyl)-L-leucyl]-agmatine

동의어(들):

E-64, n-[n-( l-transepoxysuccinic acid)-l-leucyl]-agmatine, n-[n-(l-3-trans-carboxirane-2-carbonyl)-l-leucyl]-4-aminobutylguanidine, n-[n-(l-3-trans-carboxirane-2-carbonyl)-l-leucyl]-agmatine.
note: another name for l-3-trans-carboxyoxiran-2-carboxylic acid acid is l-transepoxysuccinic acid. agmatine is 4-aminobutylguanidine., trans-Epoxysuccinyl-L-leucylamido(4-guanidino)butane, L-trans-3-Carboxyoxiran-2-carbonyl-L-leucylagmatine, N-(trans-Epoxysuccinyl)-L-leucine 4-guanidinobutylamide

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About This Item

실험식(Hill 표기법):
C15H27N5O5
CAS Number:
Molecular Weight:
357.41
Beilstein:
1405664
MDL number:
UNSPSC 코드:
12352202
PubChem Substance ID:

Quality Level

분석

>95% (HPLC)

형태

powder

분자량

Mr 357.4

포장

pkg of 10 mg (10874523001)
pkg of 25 mg (11585681001)

제조업체/상표

Roche

pH 범위

2-10

solubility

ethanol: water (1:1): soluble 20 mg/mL

저장 온도

2-8°C

SMILES string

CC(C)C[C@H](NC(=O)[C@@H]1O[C@H]1C(O)=O)C(=O)NCCCCNC(N)=N

InChI

1S/C15H27N5O5/c1-8(2)7-9(20-13(22)10-11(25-10)14(23)24)12(21)18-5-3-4-6-19-15(16)17/h8-11H,3-7H2,1-2H3,(H,18,21)(H,20,22)(H,23,24)(H4,16,17,19)/t9-,10+,11+/m0/s1

InChI key

LTLYEAJONXGNFG-HBNTYKKESA-N

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관련 카테고리

특이성

The thiol protease inhibitor E-64 specifically inhibits papain and other cysteine proteases such as cathepsin B and L, bromelain, and ficin. Cathepsin A and D are not inhibited. L-lactate dehydrogenase from porcine heart is not inhibited, although the enzyme contains a functional thiol group.

애플리케이션

E-64 is an effective ligand for affinity purification of cysteine proteases. When coupled to a thiolated affinity matrix, binding is no longer irreversible, but specificity is retained.
E-64 is used for the inhibition of papain and other cysteine proteases such as cathepsin B and L, bromelain, and ficin during isolation and purification of proteins and enzymes.
It has been used in the affinity chromatography for the purification of hemoglobin receptors.
The inhibition of thiol proteases by E-64 appears to be of a non-competitive nature between the SH components. The inhibition is also irreversible, and is altered after gel filtration (Sephadex column) or dialysis after incubation of papain with E-64. The enzyme and inhibitor combine in an equimolar ratio.

생화학적/생리학적 작용

E-64 is an irreversible, potent, and highly selective cysteine protease inhibitor. E-64 does not react with the functional thiol group of non-protease enzymes, such as L-lactate dehydrogenase or creatine kinase. E-64 will not inhibit serine proteases (except trypsin) like other cysteine protease inhibitors, leupeptin and antipain. The trans-epoxysuccinyl group (active moiety) of E-64 irreversibly binds to an active thiol group in many cysteine proteases, such as papain, actinidase, and cathepsins B, H, and L to form a thioether linkage. E-64 is a very useful cysteine protease inhibitor for use in in vivo studies because it has a specific inhibition, it is permeable in cells and tissues and has low toxicity.

제조 메모

Working concentration: 0.5 to 1.0 μg/ml (1.4 to 28.0 μM)
Working solution: Soluble to 20 mg/ml (stock solution) in a 1:1 (v/v) mixture of ethanol and water (vortexing or slight warming in water bath (40 °C) may facilitate dissolution). Also soluble in a neutral water/methanol solution, in water, methanol, acetic acid, pyridine and DMSO. Sparingly soluble in ethanol and propanol. Insoluble in acetone, chloroform, ethyl ether and benzene.
Storage conditions (working solution): -15 to -25 °C
Solutions are stable for one month when stored in aliquots at -15 to -25 °C.
E-64 is soluble in water. A 20 mg/ml solution can be prepared in water (heat may be needed). A suggested stock solution is a 1 mM aqueous solution. The effective concentration for use as a protease inhibitor is 1 to10 μM. Aqueous stock solutions are stable for months at -20 °C. Diluted solutions are stable for days at neutral pH. E-64 is stable from pH 2-10, but is unstable in ammonia or in HCl. E-64 is also soluble in DMSO, a 10 mM solution can be prepared in dry DMSO and stored at -20 °C. Subsequent dilutions were in culture medium. Solutions for injection were prepared by dissolving E-64 in 0.9% sodium chloride or in a minimum amount of saturated sodium bicarbonate followed by dilution with 0.9% sodium chloride (after adjusting the pH to 7.0 with acetic acid).

재구성

Soluble to 20 mg/ml in a 1:1 (v/v) mixture of ethanol and water. Solutions are stable for one month when stored in aliquots at -15 to -25 °C.

기타 정보

For life science research only. Not for use in diagnostic procedures.

픽토그램

Health hazard

신호어

Warning

유해 및 위험 성명서

Hazard Classifications

STOT SE 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point (°F)

does not flash

Flash Point (°C)

does not flash


시험 성적서(COA)

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문서 라이브러리 방문

K I Varughese et al.
Biochemistry, 31(22), 5172-5176 (1992-06-09)
E-64, 1-(L-trans-epoxysuccinylleucylamino)-4-guanidinobutane, is a potent and highly selective irreversible inhibitor of cysteine proteases. The crystal structure of a complex of actinidin and E-64 has been determined at 1.86-A resolution by using the difference Fourier method and refined to an R-factor
Jakub Gburek et al.
Journal of the American Society of Nephrology : JASN, 13(2), 423-430 (2002-01-24)
The kidney is the main site of hemoglobin clearance and degradation in conditions of severe hemolysis. Herein it is reported that megalin and cubilin, two epithelial endocytic receptors, mediate the uptake of hemoglobin in renal proximal tubules. Both receptors were

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