Replicase polyprotein 1ab (pp1ab) (ORF1ab polyprotein) [Cleaved into: Non-structural protein 1 (nsp1) (p9); Non-structural protein 2 (nsp2) (p87); Papain-like protease nsp3 (nsp3) (EC 3.2.2.-) (EC 3.4.19.12) (EC 3.4.22.-) (PL1-PRO/PL2-PRO) (PLP1/PLP2) (Papain-like proteinases 1/2) (p195); Non-structural protein 4 (nsp4) (Peptide HD2); 3C-like proteinase (3CL-PRO) (3CLp) (EC 3.4.22.-) (M-PRO) (nsp5) (p34); Non-structural protein 6 (nsp6); Non-structural protein 7 (nsp7) (p5); Non-structural protein 8 (nsp8) (p23); Viral protein genome-linked nsp9 (Non-structural protein 9) (nsp9) (RNA-capping enzyme subunit nsp9); Non-structural protein 10 (nsp10) (Growth factor-like peptide) (GFL) (p16); RNA-directed RNA polymerase nsp12 (Pol) (RdRp) (EC 2.7.7.48) (EC 2.7.7.50) (nsp12) (p100); Helicase (Hel) (EC 3.6.4.12) (EC 3.6.4.13) (nsp13) (p66) (p66-HEL); Exoribonuclease (ExoN) (EC 3.1.13.-) (nsp14); Uridylate-specific endoribonuclease (EC 4.6.1.-) (NendoU) (nsp15) (p41); Putative 2'-O-methyl transferase (EC 2.1.1.57) (nsp16)]