ID 1.4.3.22 DE Diamine oxidase. AN Amine oxidase. AN Amine oxidase (copper-containing). AN CAO. AN Copper amine oxidase. AN Cu-containing amine oxidase. AN Diamino oxhydrase. AN Histaminase. AN Histamine deaminase. AN Semicarbazide-sensitive amine oxidase. AN SSAO. CA Histamine + H(2)O + O(2) = (imidazol-4-yl)acetaldehyde + NH(3) + CA H(2)O(2). CC -!- A group of enzymes that oxidize diamines, such as histamine, and also CC some primary monoamines but have little or no activity toward CC secondary and tertiary amines. CC -!- They are copper quinoproteins (2,4,5-trihydroxyphenylalanine quinone) CC and, like EC 1.4.3.21 but unlike EC 1.4.3.4, they are sensitive to CC inhibition by carbonyl-group reagents, such as semicarbazide. CC -!- Formerly EC 1.4.3.6. DR P19801, ABP1_HUMAN ; Q8JZQ5, ABP1_MOUSE ; Q9TRC7, ABP1_PIG ; DR P36633, ABP1_RAT ; Q12556, AMO1_ASPNG ; Q59118, AMOH_ARTGO ; //