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