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.
References
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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:
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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
