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Literature summary for 1.11.1.11 extracted from

  • Shigeoka, S.; Nakano, Y.; Kitaoka, S.
    Metabolism of hydrogen peroxide in Euglena gracilis Z by L-ascorbic acid peroxidase (1980), Biochem. J., 186, 377-380.
    View publication on PubMedView publication on EuropePMC

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Euglena gracilis 5829
-
additional information not in mitochondria, chloroplasts, microsomes Euglena gracilis
-
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-ascorbate + H2O2 Euglena gracilis the enzyme appears to be the sole agent destroying H2O2 dehydroascorbate + 2 H2O
-
?
L-ascorbate + H2O2 Euglena gracilis physiological role of the enzyme: removal of H2O2, prevention of H2O2 accumulation dehydroascorbate + 2 H2O
-
?

Organism

Organism UniProt Comment Textmining
Euglena gracilis
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.7684
-
crude extract Euglena gracilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cytochrome c + H2O2 no activity Euglena gracilis ? + H2O
-
?
glutathione + H2O2 no activity Euglena gracilis ? + H2O
-
?
L-ascorbate + H2O2
-
Euglena gracilis dehydroascorbate + H2O
-
?
L-ascorbate + H2O2 the enzyme appears to be the sole agent destroying H2O2 Euglena gracilis dehydroascorbate + 2 H2O
-
?
L-ascorbate + H2O2 physiological role of the enzyme: removal of H2O2, prevention of H2O2 accumulation Euglena gracilis dehydroascorbate + 2 H2O
-
?
additional information no activity with: NADH, NADPH, cytochrome c, glutathione and palmitic acid as the natural electron donor Euglena gracilis ?
-
?
NADPH + H2O2 no activity Euglena gracilis ? + H2O
-
?
pyrogallol + H2O2
-
Euglena gracilis 3-hydroxybenzo-1,2-quinone + H2O
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
32
-
-
Euglena gracilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.2
-
-
Euglena gracilis