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EC Tree
IUBMB Comments Heme proteins with histidine as proximal ligand. The iron in the resting enzyme is Fe(III). They also peroxidize non-phenolic substrates such as 3,3',5,5'-tetramethylbenzidine (TMB) and 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS). Certain peroxidases (e.g. lactoperoxidase, SBP) oxidize bromide, iodide and thiocyanate.
The taxonomic range for the selected organisms is: Glycine max The enzyme appears in selected viruses and cellular organisms
Reaction Schemes
2
phenolic donor
+
=
2
phenoxyl radical of the donor
+
2
Synonyms
horseradish peroxidase, horseradish peroxidase (hrp), rhepo, lactoperoxidase, eosinophil peroxidase, guaiacol peroxidase, heme peroxidase, rubrerythrin, cyp119, thiol peroxidase,
more
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eosinophil peroxidase
-
-
-
-
extensin peroxidase
-
-
-
-
guaiacol peroxidase
-
-
-
-
horseradish peroxidase (HRP)
-
-
-
-
Japanese radish peroxidase
-
-
-
-
protoheme peroxidase
-
-
-
-
pyrocatechol peroxidase
-
-
-
-
scopoletin peroxidase
-
-
-
-
thiocyanate peroxidase
-
-
-
-
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phenolic donor:hydrogen-peroxide oxidoreductase
Heme proteins with histidine as proximal ligand. The iron in the resting enzyme is Fe(III). They also peroxidize non-phenolic substrates such as 3,3',5,5'-tetramethylbenzidine (TMB) and 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS). Certain peroxidases (e.g. lactoperoxidase, SBP) oxidize bromide, iodide and thiocyanate.
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guaiacol + H2O2
tetraguaiacol + H2O
-
-
-
?
reduced 2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid) + H2O2
oxidized 2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid) + H2O
-
-
-
-
?
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0.045 - 0.17
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
0.045
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
-
25°C, pH 5.0
0.17
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
-
25°C, pH 6.8
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1230 - 2663
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
1230
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
-
25°C, pH 6.8
2663
2,2'-azino-bis-(3-ethylbenzthiazole-6-sulfonic acid)
-
25°C, pH 5.0
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4 - 8
-
approx. 50% of maximal activity at pH 4.5 and pH 6.5, respectively
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-
Uniprot
brenda
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-
seed coat
brenda
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O22443_SOYBN
352
1
38106
TrEMBL
Secretory Pathway (Reliability: 1 )
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guanidine-HCl
unfolding at 7.6 M
urea
resistant to unfolding by urea
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Kamal, J.K.; Behere, D.V.
Activity, stability and conformational flexibility of seed coat soybean peroxidase
J. Inorg. Biochem.
94
236-242
2003
Armoracia rusticana, Glycine max
brenda
Kamal, J.K.; Behere, D.V.
Kinetic stabilities of soybean and horseradish peroxidases
Biochem. Eng. J.
38
110-114
2008
Glycine max (O22443), Armoracia rusticana (P00433)
-
brenda
Transporter Classification Database (TCDB):
9.A.61.3.1