ChemicalBook Product Catalog Biochemical Engineering Inhibitors Proteases Cysteine ??Protease Inhibitors E-64C

E-64C

Product NameE-64C
CAS76684-89-4
MFC15H26N2O5
MW314.38
EINECS
MOL File76684-89-4.mol

Chemical Properties

storage temp.	Sealed in dry,Store in freezer, under -20°C
solubility	≥31.4 mg/mL in DMSO; insoluble in H2O; ≥111.8 mg/mL in EtOH
form	White to off-white solid
color	White to off-white
biological source	synthetic (organic)
InChI	InChI=1S/C15H26N2O5/c1-8(2)5-6-16-13(18)10(7-9(3)4)17-14(19)11-12(22-11)15(20)21/h8-12H,5-7H2,1-4H3,(H,16,18)(H,17,19)(H,20,21)/t10-,11-,12-/m0/s1
InChIKey	SCMSYZJDIQPSDI-SRVKXCTJSA-N
SMILES	O1[C@H](C(N[C@H](C(NCCC(C)C)=O)CC(C)C)=O)[C@H]1C(O)=O

Safety Information

WGK Germany	3
RTECS	RR0404200
HS Code	29241990

MSDS

Provider	Language
SigmaAldrich	English

Usage And Synthesis

Description

E-64c is an active metabolite of the protease inhibitor E-64d . E-64c inhibits the cysteine proteases cathepsin B, cathepsin H, and papain but not the serine proteases trypsin, chymotrypsin, or elastase. It reduces the autocatalytic activity of the foot-and-mouth-disease virus (FMDV) leader protease when used at concentrations ranging from 0.1 to 1 mg/ml. E-64c reduces infection of HEK293T cells by an HIV-based virus system pseudotyped with severe acute respiratory syndrome coronavirus (SARS-CoV) surface glycoprotein, also known as the spike glycoprotein, in a concentration-dependent manner.

Uses

E-64c is a cysteine protease inhibitor used for detecting autophagy in plants.

Definition

ChEBI: E-64c is a leucine derivative.

in vivo

The t-1/2 of plasma E-64c is 0.48 hours. The hemodynamic effects of E-64c are absent at this dose. Using two way analysis of variance, the effects of reperfusion (p=0.0016) or E-64c (p=0.0226) per se on infarct size are significant. In comparing Group A with Group B and Group C with Group D, the depletion of CPK in the E-64c treated groups (Groups A and C) is slightly less than in the vehicle-injected groups (Groups B and D). The insufficient effect of E-64c alone may be explained by the early administration and relatively short t-1/2. Since the effectiveness of NCO-700 has been established,6),7) our findings might indicate a small but beneficial effect of E-64c on infarct size and CPK content^[2].

target

cathepsins B

IC 50

Cathepsin C

References

[1] Y SHOJI-KASAI. Thiol protease-specific inhibitor E-64 arrests human epidermoid carcinoma A431 cells at mitotic metaphase.[J]. Proceedings of the National Academy of Sciences of the United States of America, 1988, 85 1: 146-150. DOI: 10.1073/pnas.85.1.146
[2] WILLIAM R ROUSH . Design, Synthesis and Evaluation of d-Homophenylalanyl Epoxysuccinate Inhibitors of the Trypanosomal Cysteine Protease Cruzain[J]. Tetrahedron, 2000, 56 50: Pages 9747-9762. DOI: 10.1016/s0040-4020(00)00882-6
[3] L G KLEINA M J G. Antiviral effects of a thiol protease inhibitor on foot-and-mouth disease virus.[J]. Journal of Virology, 1992, 66 12: 7168-7175. DOI: 10.1128/jvi.66.12.7168-7175.1992
[4] GRAHAM SIMMONS. Inhibitors of cathepsin L prevent severe acute respiratory syndrome coronavirus entry.[J]. Proceedings of the National Academy of Sciences of the United States of America, 2005: 11876-11881. DOI: 10.1073/pnas.0505577102
[5] A J BARRETT. L-trans-Epoxysuccinyl-leucylamido(4-guanidino)butane (E-64) and its analogues as inhibitors of cysteine proteinases including cathepsins B, H and L.[J]. Biochemical Journal, 1982, 201 1: 189-198. DOI: 10.1042/bj2010189
[6] M TAMAI. In vitro and in vivo inhibition of cysteine proteinases by EST, a new analog of E-64.[J]. Journal of pharmacobio-dynamics, 1986, 9 8: 672-677. DOI: 10.1248/bpb1978.9.672

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