Succinate-semialdehyde dehydrogenase [NADP+] 1; Catalyzes the NADP(+)-dependent oxidation of succinate semialdehyde to succinate. It is believed to be the main source of succinate semialdehyde dehydrogenase activity in Mycobacterium. NAD(+) can substitute for NADP(+), but enzymatic activity is three times reduced (511 aa)