Reaction catalyzed by DELTA14-sterol reductase (1.3.1.70)
+
NADPH
+
=
+
NADP+
4alpha-methyl-5alpha-ergosta-8,14,24(28)-trien-3beta-ol
+
NADPH
+
H+
=
4alpha-methylfecosterol
+
NADP+
