6-Hydroxy-3-succinoylpyridine 3-monooxygenase

6-hydroxy-3-succinoylpyridine 3-monooxygenase (, 6-hydroxy-3-succinoylpyridine hydroxylase, hspA (gene), hspB (gene)) is an enzyme with systematic name 4-(6-hydroxypyridin-3-yl)-4-oxobutanoate,NADH:oxygen oxidoreductase (3-hydroxylating, succinate semialdehyde releasing). This enzyme catalyses the following chemical reaction


 * 4-(6-hydroxypyridin-3-yl)-4-oxobutanoate + 2 NADH + 2 H+ + O2 $$\rightleftharpoons$$ 2,5-dihydroxypyridine + succinate semialdehyde + 2 NAD+ + H2O

6-hydroxy-3-succinoylpyridine 3-monooxygenase catalyses a reaction in the nicotine degradation pathway of Pseudomonas species.