Reaction catalyzed by 25/26-hydroxycholesterol 7alpha-hydroxylase (1.14.14.29)
+
+
=
+
+
H2O
cholest-5-ene-3beta,25-diol
+
[reduced NADPH-hemoprotein reductase]
+
O2
=
cholest-5-ene-3beta,7alpha,25-triol
+
[oxidized NADPH-hemoprotein reductase]
+
H2O
