Reaction catalyzed by L-amino-acid dehydrogenase (1.4.1.5), valine dehydrogenase (NADP+) (1.4.1.8)
+
H2O
+
NAD+
=
+
NH3
+
NADH
L-cysteine
+
H2O
+
NAD+
=
3-mercapto-2-oxopropanoate
+
NH3
+
NADH
