ID 1.5.3.19 DE 4-methylaminobutanoate oxidase (formaldehyde-forming). CA 4-(methylamino)butanoate + H2O + O2 = 4-aminobutanoate + formaldehyde + CA H2O2. CC -!- In the enzyme from the soil bacterium Arthrobacter nicotinovorans the CC cofactor is covalently bound. CC -!- Participates in the nicotine degradation pathway of this organism. DR Q8GAI3, MABO1_PAENI; //