Information on EC - diamine oxidase

for references in articles please use BRENDA:EC1.4.3.22
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EC Tree
     1 Oxidoreductases
         1.4 Acting on the CH-NH2 group of donors
             1.4.3 With oxygen as acceptor
       diamine oxidase
IUBMB Comments
A group of enzymes that oxidize diamines, such as histamine, and also some primary monoamines but have little or no activity towards secondary and tertiary amines. They are copper quinoproteins (2,4,5-trihydroxyphenylalanine quinone) and, like EC (primary-amine oxidase) but unlike EC (monoamine oxidase), they are sensitive to inhibition by carbonyl-group reagents, such as semicarbazide.
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea
diamine oxidase, amine oxidase, histaminase, histamine dehydrogenase, histamine oxidase, amiloride-binding protein, n-methylputrescine oxidase, rhdao, methylputrescine oxidase, more
histamine + H2O + O2 = (imidazol-4-yl)acetaldehyde + NH3 + H2O2
show the reaction diagram