ID 1.14.14.26 DE 24-hydroxycholesterol 7alpha-hydroxylase. AN 24-hydroxycholesterol 7alpha-monooxygenase. CA (24S)-hydroxycholesterol + O2 + reduced [NADPH--hemoprotein reductase] = CA (24S)-7alpha-dihydroxycholesterol + H(+) + H2O + oxidized [NADPH- CA -hemoprotein reductase]. CC -!- Found in liver microsomes and in ciliary non-pigmented epithelium. CC -!- Specific for (24S)-cholest-5-ene-3beta,24-diol, which is formed CC mostly in the brain by EC 1.14.14.25. CC -!- The direct electron donor to the enzyme is EC 1.6.2.4. CC -!- Formerly EC 1.14.13.99. DR Q9NYL5, CP39A_HUMAN; Q9JKJ9, CP39A_MOUSE; P22680, CP7A1_HUMAN; DR Q64505, CP7A1_MOUSE; O46491, CP7A1_PIG ; P51542, CP7A1_RABIT; DR P18125, CP7A1_RAT ; O75881, CP7B1_HUMAN; Q60991, CP7B1_MOUSE; //