label: [mycofactocin precursor peptide]-C-terminal glycyl-L-valyl-L-tyrosine + S-adenosyl-L-methionine = [mycofactocin precursor peptide]-C-terminal glycyl-N-{[2-(4-hydroxyphenyl)ethenyl]-3-methylbutanamide} + 5'-deoxyadenosine + L-methionine + CO2
label_lc: [mycofactocin precursor peptide]-c-terminal glycyl-l-valyl-l-tyrosine + s-adenosyl-l-methionine = [mycofactocin precursor peptide]-c-terminal glycyl-n-{[2-(4-hydroxyphenyl)ethenyl]-3-methylbutanamide} + 5'-deoxyadenosine + l-methionine + co2