label: all-trans-retinoate + reduced [NADPH--hemoprotein reductase] + O2 <=> all-trans-(4S)-hydroxyretinoate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
label_lc: all-trans-retinoate + reduced [nadph--hemoprotein reductase] + o2 <=> all-trans-(4s)-hydroxyretinoate + oxidized [nadph--hemoprotein reductase] + h2o + h(+)