(3R)-3-hydroxy-4-oxobutanoate + trimethylamine + NAD(+) + H2O => (R)-carnitine + NADH + O2 + H(+)
(3r)-3-hydroxy-4-oxobutanoate + trimethylamine + nad(+) + h2o => (r)-carnitine + nadh + o2 + h(+)
(3R)-3-hydroxy-4-oxobutanoate + trimethylamine + NAD(+) + H2O => (R)-carnitine + NADH + O2 + H(+)
(3r)-3-hydroxy-4-oxobutanoate + trimethylamine + nad(+) + h2o => (r)-carnitine + nadh + o2 + h(+)