(24R)-hydroxycholesterol + reduced [NADPH--hemoprotein reductase] + O2 <=> (24R)-7alpha-dihydroxycholesterol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
(24r)-hydroxycholesterol + reduced [nadph--hemoprotein reductase] + o2 <=> (24r)-7alpha-dihydroxycholesterol + oxidized [nadph--hemoprotein reductase] + h2o + h(+)