2,5-dihydroxypyridine + O2 <=> N-formylmaleamate + H(+)
2,5-dihydroxypyridine + o2 <=> n-formylmaleamate + h(+)
2,5-dihydroxypyridine + O2 <=> N-formylmaleamate + H(+)
2,5-dihydroxypyridine + o2 <=> n-formylmaleamate + h(+)