1,7-dimethylxanthine + NADH + O2 + H(+) = 7-methylxanthine + formaldehyde + NAD(+) + H2O
1,7-dimethylxanthine + nadh + o2 + h(+) = 7-methylxanthine + formaldehyde + nad(+) + h2o
1,7-dimethylxanthine + NADH + O2 + H(+) = 7-methylxanthine + formaldehyde + NAD(+) + H2O
1,7-dimethylxanthine + nadh + o2 + h(+) = 7-methylxanthine + formaldehyde + nad(+) + h2o