3.4.22.69 coronavirus polyprotein + H2O 3CLpro processes the translated polyproteins to functional viral proteins 3.4.22.69 coronavirus polyprotein + H2O during the formation of the coronaviral replication/transcription complex, essential steps include processing of the conserved polyprotein nsp7-10 region by the main protease Mpro and subsequent complex formation of the released nsps 3.4.22.69 Dabcyl-KTSAVLQSGFRKME-EDANS + H2O - 3.4.22.69 additional information SARS-CoV 3CLpro mediates extensive proteolytic processing of two overlapping replicase polyproteins, pp1a (486000 Da) and pp1ab (790000 Da), to yield the corresponding functional polypeptides that are essential for SARSCoV replication and transcription processes 3.4.22.69 additional information the genomic RNA produces two large proteins with overlapping sequences, polyproteins 1a and 1ab, which are autocatalytically cleaved by two or three viral proteases to yield functional polypeptides. The key enzyme in this processing is SARS 3CL protease 3.4.22.69 additional information 3CLpro cleaves the replicase polyproteins at 11 sites with the conserved Gln-(Ser, Ala, Gly) sequences