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Literature summary for 1.1.3.8 extracted from

  • Okamura, M.
    Purification and properties of L-gulono-1,4-lactone oxidase from Grifola frondosa (2001), J. Nutr. Sci. Vitaminol., 47, 258-261.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
24
-
L-gulono-1,4-lactone
-
Grifola frondosa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
250000
-
gel filtration Grifola frondosa

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-gulono-1,4-lactone + O2 Grifola frondosa
-
L-xylo-hex-3-ulonolactone + H2O2
-
?

Organism

Organism UniProt Comment Textmining
Grifola frondosa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Grifola frondosa

Reaction

Reaction Comment Organism Reaction ID
L-gulono-1,4-lactone + O2 = L-xylo-hex-2-ulono-1,4-lactone + H2O2 product isomerizes spontaneously to L-ascorbate Grifola frondosa

Source Tissue

Source Tissue Comment Organism Textmining
fruit body fresh Grifola frondosa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-glucono-1,4-lactone + O2 4% as active as L-gulono-1,4-lactone Grifola frondosa ?
-
?
D-mannono-1,4-lactone + O2 25% as active as L-gulono-1,4-lactone Grifola frondosa ?
-
?
L-galactono-1,4-lactone + O2 2% as active as L-gulono-1,4-lactone Grifola frondosa L-ascorbic acid + H2O2
-
?
L-gulono-1,4-lactone + O2
-
Grifola frondosa L-xylo-hex-3-ulonolactone + H2O2
-
?
L-gulono-1,4-lactone + O2
-
Grifola frondosa L-xylo-hex-3-ulonolactone + H2O2 product isomerizes spontaneously to L-ascorbate ?
L-idono-1,4-lactone + O2 3% as active as L-gulono-1,4-lactone Grifola frondosa ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
-
Grifola frondosa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Grifola frondosa

Cofactor

Cofactor Comment Organism Structure
flavin covalently bound, flavoenzyme Grifola frondosa