3.1.3.108 NADP+ + H2O - 3.1.3.108 NADP+ + H2O the enzyme regulates the intracellular balance of NAD(H) and NADP(H) 3.1.3.108 NADPH + H2O - 3.1.3.108 NADPH + H2O the enzyme regulates the intracellular balance of NAD(H) and NADP(H)