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1.4.3.22: diamine oxidase

This is an abbreviated version!
For detailed information about diamine oxidase, go to the full flat file.

Word Map on EC 1.4.3.22

Reaction

histamine
+
H2O
+
O2
=
(imidazol-4-yl)acetaldehyde
+
NH3
+
H2O2

Synonyms

ABP1, AGAO, Amiloride-binding protein, Amine oxidase, BSAO, Copper amine oxidase, DAO, DAO-1, Diamine oxidase, EC 1.4.3.6, ELAO, GPAO, hDAO, histaminase, histamine dehydrogenase, histamine oxidase, LCAO, LSAO, methylputrescine oxidase, More, MPO, N-methylputrescine oxidase, pea seedling amine oxidase, PKAO, PPLO, PSAO, pWGH15, rhDAO, vDAO

ECTree

     1 Oxidoreductases
         1.4 Acting on the CH-NH2 group of donors
             1.4.3 With oxygen as acceptor
                1.4.3.22 diamine oxidase

Specific Activity

Specific Activity on EC 1.4.3.22 - diamine oxidase

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.00017
substrate histamine, at low substrate concentration
0.00037
substrate beta-phenylethylamine, at high substrate concentration
0.00074
substrate tyramine, at high substrate concentration
0.00075
substrate benzylamine, at high substrate concentration
0.00226
substrate histamine, at high substrate concentration
0.012
-
-
0.0166
-
-
0.0326
-
partially purified enzyme, N-methylpurtrescine as substrate, pH 7.9, 30°C
0.046
-
oxidation of histamine, H2S treated enzyme
0.054
-
oxidation of tyramine, H2S treated enzyme
0.058
-
oxidation of serotonine creatine sulfate, H2S treated enzyme
0.11
-
oxidation of tryptamine, H2S treated enzyme
0.13
-
oxidation of putrescine, H2S treated enzyme
0.141
-
unpurified enzyme, at 37°C, pH not specified in the publication
0.21
-
oxidation of cadeverine, H2S treated enzyme
0.216
-
oxidation of N-methyl-beta-phenylethylamine, H2S treated enzyme
0.22
-
enzyme from seminal plasma
0.31
-
oxidation of histamine
0.38
-
oxidation of putrescine
0.412
-
enzyme from seedlings
0.51
-
oxidation of cadeverine
0.72
aminoheptane
0.73
-
-
1.27
-
-
1.44
-
-
1.6
-
-
1.74
aminoheptane
100
-
approx. value
135
-
cadaverine
2.76
benzylamine
21.6
-
-
3.2
-
-
32.7
-
after 233fold purification, at 37°C, pH not specified in the publication
60.1
-
enzyme from embryo
69.62
-
enzyme from epicotyl
7.68
aminoheptane
70.8
-
enzyme from seedlings
79.6
-
enzyme from cotyledon
additional information