(2~{R},3~{S})-3-[[(2~{S})-3-cyclopropyl-2-[[(~{E})-3-phenylprop-2-enoyl]amino]propanoyl]amino]-2-oxidanyl-4-[(3~{S})-2-oxidanylidenepyrrolidin-3-yl]-~{N}-(phenylmethyl)butanamide

P0C6X7 — Replicase polyprotein 1ab