phosphonate + NAD(+) + H2O <=> phosphate + NADH + H(+)
phosphonate + nad(+) + h2o <=> phosphate + nadh + h(+)
phosphonate + NAD(+) + H2O <=> phosphate + NADH + H(+)
phosphonate + nad(+) + h2o <=> phosphate + nadh + h(+)