preferred_name: L-seryl-[protein] + acetyl-CoA => O-acetyl-L-seryl-[protein] + CoA
preferred_name_lc: l-seryl-[protein] + acetyl-coa => o-acetyl-l-seryl-[protein] + coa
label: L-seryl-[protein] + acetyl-CoA => O-acetyl-L-seryl-[protein] + CoA
label_lc: l-seryl-[protein] + acetyl-coa => o-acetyl-l-seryl-[protein] + coa