label: (indol-3-yl)butanoyl-L-cysteine + AMP + diphosphate + H(+) => (indol-3-yl)butanoate + L-cysteine + ATP
label_lc: (indol-3-yl)butanoyl-l-cysteine + amp + diphosphate + h(+) => (indol-3-yl)butanoate + l-cysteine + atp