label: D-ribulose 5-phosphate + L-tryptophan = (2S)-3-(1H-indol-3-yl)-2-isocyanopropanoate + hydroxyacetone + formaldehyde + phosphate + H2O + H(+)
label_lc: d-ribulose 5-phosphate + l-tryptophan = (2s)-3-(1h-indol-3-yl)-2-isocyanopropanoate + hydroxyacetone + formaldehyde + phosphate + h2o + h(+)