7-methylxanthine + NADH + O2 + H(+) = xanthine + formaldehyde + NAD(+) + H2O
7-methylxanthine + nadh + o2 + h(+) = xanthine + formaldehyde + nad(+) + h2o
7-methylxanthine + NADH + O2 + H(+) = xanthine + formaldehyde + NAD(+) + H2O
7-methylxanthine + nadh + o2 + h(+) = xanthine + formaldehyde + nad(+) + h2o