1.13.11.9	2,5-DHP dioxygenase, 2,5-dihydroxypyridine dioxygenase, 2,5-dihydroxypyridine oxygenase, 2,5DHP dioxygenase, EC 1.13.1.9, NicX, NicX protein, oxygenase, 2,5-dihydroxypyridine 5,6-di-, pyridine-2,5-diol dioxygenase