Reaction catalyzed by thioredoxin-disulfide reductase (1.8.1.9)
+
NADPH
+
=
+
+
NADP+
Pro-Thr-Val-Thr-Gly-Cys-S-S-Cys-Gly
+
NADPH
+
H+
=
Pro-Thr-Val-Thr-Gly-Cys
+
Cys-Gly
+
NADP+
