label: N-acetyl-S-hydroxy-L-cysteine + benzaldehyde + FMN + H2O + H(+) => (R)-N-acetyl-S-benzyl-L-cysteine sulfoxide + FMNH2 + O2
label_lc: n-acetyl-s-hydroxy-l-cysteine + benzaldehyde + fmn + h2o + h(+) => (r)-n-acetyl-s-benzyl-l-cysteine sulfoxide + fmnh2 + o2