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Literature summary for 1.11.1.21 extracted from

  • Moore, R.L.; Powell, L.J.; Goodwin, D.C.
    The kinetic properties producing the perfunctory pH profiles of catalase-peroxidases (2008), Biochim. Biophys. Acta, 1784, 900-907.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Escherichia coli

Inhibitors

Inhibitors Comment Organism Structure
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) acts as an inhibitor of peroxidase activity at lower pH (pH 3.8-4.5) Escherichia coli
H2O2 enzyme inhibition is observed at hydrogen peroxide concentrations greater than 1.0 mM Escherichia coli

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.032
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 4.0, 23°C Escherichia coli
0.04
-
o-Dianisidine pH 4.0, 23°C Escherichia coli
0.05
-
o-Dianisidine pH 4.5, 23°C Escherichia coli
0.053
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 4.5, 23°C Escherichia coli
0.06
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 6.0, 23°C Escherichia coli
0.087
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 5.0, 23°C Escherichia coli
0.09
-
o-Dianisidine pH 5.0, 23°C Escherichia coli
0.09
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 5.5, 23°C Escherichia coli
0.11
-
o-Dianisidine pH 5.5, 23°C Escherichia coli
0.12
-
o-Dianisidine pH 6.0, 23°C Escherichia coli
1.1
-
pyrogallol pH 4.5, 23°C Escherichia coli
1.1
-
pyrogallol pH 4.0, 23°C Escherichia coli
1.3
-
pyrogallol pH 5.0, 23°C Escherichia coli
1.5
-
pyrogallol pH 5.5, 23°C Escherichia coli
1.6
-
pyrogallol pH 6.0, 23°C Escherichia coli
3.8
-
H2O2 pH 7.0, 23°C Escherichia coli

Organism

Organism UniProt Comment Textmining
Escherichia coli
-
-
-

Purification (Commentary)

Purification (Comment) Organism
Ni-NTA column chromatography Escherichia coli

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) + H2O2
-
Escherichia coli oxidized 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) + H2O
-
?
H2O2
-
Escherichia coli O2 + H2O
-
?
o-dianisidine + H2O2
-
Escherichia coli oxidized o-dianisidine + H2O
-
?
pyrogallol + H2O2
-
Escherichia coli ? + H2O
-
?

Synonyms

Synonyms Comment Organism
KatG
-
Escherichia coli

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
11
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 6.0, 23°C Escherichia coli
20
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 5.5, 23°C Escherichia coli
24
-
o-Dianisidine pH 4.0, 23°C Escherichia coli
27
-
pyrogallol pH 4.0, 23°C Escherichia coli
37
-
o-Dianisidine pH 4.5, 23°C Escherichia coli
44
-
pyrogallol pH 4.5, 23°C Escherichia coli
55
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 5.0, 23°C Escherichia coli
56
-
pyrogallol pH 5.0, 23°C Escherichia coli
58
-
o-Dianisidine pH 5.0, 23°C Escherichia coli
64
-
pyrogallol pH 5.5, 23°C Escherichia coli
69
-
o-Dianisidine pH 5.5, 23°C Escherichia coli
69
-
pyrogallol pH 6.0, 23°C Escherichia coli
71
-
o-Dianisidine pH 6.0, 23°C Escherichia coli
92
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 4.5, 23°C Escherichia coli
151
-
2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) pH 4.0, 23°C Escherichia coli

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
peroxidase pH optimum Escherichia coli
6.5
-
catalase pH optimum Escherichia coli

Cofactor

Cofactor Comment Organism Structure
heme
-
Escherichia coli