Reaction catalyzed by crotonyl-CoA carboxylase/reductase (1.3.1.85)
+
NADPH
+
+
=
+
NADP+
(2E)-hex-2-enoyl-CoA
+
NADPH
+
CO2
+
H+
=
(S)-2-butylpropanedioyl-CoA
+
NADP+
