KEGG REACTION: R00644

REACTION: R00644

Entry

R00644                      Reaction

Name

L-ascorbate:hydrogen-peroxide oxidoreductase

Definition

Ascorbate + Hydrogen peroxide <=> Dehydroascorbate + 2 H2O

Equation

C00072 + C00027 <=> C05422 + 2 C00001

Reaction class

RC00092

C00072_C05422

Enzyme

1.11.1.11

Pathway

rn00480

Glutathione metabolism

rn01100

Metabolic pathways

Brite

Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
  1.11  Acting on a peroxide as acceptor
   1.11.1  Peroxidases
    1.11.1.11
     R00644  Ascorbate + Hydrogen peroxide <=> Dehydroascorbate + 2 H2O

Orthology

K00434

L-ascorbate peroxidase [EC:1.11.1.11]

Other DBs

RHEA:

22999

LinkDB

REACTION: R09540

Entry

R09540                      Reaction

Definition

2 Ascorbate + Hydrogen peroxide <=> 2 Monodehydroascorbate + 2 H2O

Equation

2 C00072 + C00027 <=> 2 C01041 + 2 C00001

Comment

first step of two-step reaction (R00644, R09540+R03186)

Enzyme

1.11.1.11

Pathway

rn00053

Ascorbate and aldarate metabolism

rn01100

Metabolic pathways

Brite

Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
  1.11  Acting on a peroxide as acceptor
   1.11.1  Peroxidases
    1.11.1.11
     R09540  2 Ascorbate + Hydrogen peroxide <=> 2 Monodehydroascorbate + 2 H2O

Orthology

K00434

L-ascorbate peroxidase [EC:1.11.1.11]

Other DBs

RHEA:

30266

LinkDB

REACTION: R03186

Entry

R03186                      Reaction

Definition

2 Monodehydroascorbate <=> Dehydroascorbate + Ascorbate

Equation

2 C01041 <=> C05422 + C00072

Comment

spontaneous
second step of two-step reaction (R00644, R09540+R03186)

Enzyme

1.11.1.11

Pathway

rn00053

Ascorbate and aldarate metabolism

rn01100

Metabolic pathways

Brite

Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
  1.11  Acting on a peroxide as acceptor
   1.11.1  Peroxidases
    1.11.1.11
     R03186  2 Monodehydroascorbate <=> Dehydroascorbate + Ascorbate

Other DBs

RHEA:

30270

LinkDB

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