The Enzyme Database

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Accepted name: SARS coronavirus main proteinase
Reaction: TSAVLQ┼SGFRK-NH2 and SGVTFQ┼GKFKK the two peptides corresponding to the two self-cleavage sites of the SARS 3C-like proteinase are the two most reactive peptide substrates. The enzyme exhibits a strong preference for substrates containing Gln at P1 position and Leu at P2 position.
Other name(s): 3cLpro; 3C-like protease; coronavirus 3C-like protease; Mpro; SARS 3C-like protease; SARS coronavirus 3CL protease; SARS coronavirus main peptidase; SARS coronavirus main protease; SARS-CoV 3CLpro enzyme; SARS-CoV main protease; SARS-CoV Mpro; severe acute respiratory syndrome coronavirus main protease
Comments: SARS coronavirus main protease is the key enzyme in SARS coronavirus replicase polyprotein processing. In peptidase family C30.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, MEROPS, PDB
1.  Goetz, D.H., Choe, Y., Hansell, E., Chen, Y.T., McDowell, M., Jonsson, C.B., Roush, W.R., McKerrow, J. and Craik, C.S. Substrate specificity profiling and identification of a new class of inhibitor for the major protease of the SARS coronavirus. Biochemistry 46 (2007) 8744–8752. [DOI] [PMID: 17605471]
2.  Fan, K., Wei, P., Feng, Q., Chen, S., Huang, C., Ma, L., Lai, B., Pei, J., Liu, Y., Chen, J. and Lai, L. Biosynthesis, purification, and substrate specificity of severe acute respiratory syndrome coronavirus 3C-like proteinase. J. Biol. Chem. 279 (2004) 1637–1642. [DOI] [PMID: 14561748]
3.  Akaji, K., Konno, H., Onozuka, M., Makino, A., Saito, H. and Nosaka, K. Evaluation of peptide-aldehyde inhibitors using R188I mutant of SARS 3CL protease as a proteolysis-resistant mutant. Bioorg. Med. Chem. 16 (2008) 9400–9408. [DOI] [PMID: 18845442]
[EC created 2009]

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