label: 25-hydroxycholesterol + reduced [NADPH--hemoprotein reductase] + O2 <=> 7alpha,25-dihydroxycholesterol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
label_lc: 25-hydroxycholesterol + reduced [nadph--hemoprotein reductase] + o2 <=> 7alpha,25-dihydroxycholesterol + oxidized [nadph--hemoprotein reductase] + h2o + h(+)