(4Z,15Z)-bilirubin IXalpha + NAD(+) <=> biliverdin IXalpha + NADH + H(+)
(4z,15z)-bilirubin ixalpha + nad(+) <=> biliverdin ixalpha + nadh + h(+)
(4Z,15Z)-bilirubin IXalpha + NAD(+) <=> biliverdin IXalpha + NADH + H(+)
(4z,15z)-bilirubin ixalpha + nad(+) <=> biliverdin ixalpha + nadh + h(+)