ID 3.2.2.26 DE Futalosine hydrolase. AN Futalosine nucleosidase. CA Futalosine + H(2)O = dehypoxanthine futalosine + hypoxanthine. CC -!- This enzyme, which is specific for futalosine, catalyzes the second CC step of a novel menaquinone biosynthetic pathway that is found in CC some prokaryotes. //