Reaction catalyzed by 4-(gamma-glutamylamino)butanal dehydrogenase (1.2.1.99)
+
NADP+
+
H2O
=
+
NADPH
+
2
3-hydroxypropionaldehyde
+
NADP+
+
H2O
=
3-hydroxypropanoate
+
NADPH
+
2 H+
