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Literature summary extracted from
- Ascorbate peroxidase, a scavenger of hydrogen peroxide in glyoxysomal membranes (2005), Arch. Biochem. Biophys., 434, 248-257.
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 1.11.1.11 | 0.06 | - |
H2O2 | pH 7.5, 25°C | Ricinus communis |  |
| 1.11.1.11 | 0.3 | - |
ascorbate | pH 7.5, 25°C | Ricinus communis | |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 1.11.1.11 | glyoxysome | - |
Ricinus communis | 9514 | - |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 1.11.1.11 | 34000 | - |
x * 34000, SDS-PAGE | Ricinus communis |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.11.1.11 | additional information | Ricinus communis | can cooperate with monodehydroascorbate reductase in glyoxysomal membrane to oxidize NADH, regenerate ascorbate, detoxify H2O2 | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 1.11.1.11 | Ricinus communis | - |
- |
- |
Posttranslational Modification
| EC Number | Posttranslational Modification | Comment | Organism |
|---|---|---|---|
| 1.11.1.11 | additional information | hemoprotein | Ricinus communis |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 1.11.1.11 | - |
Ricinus communis |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 1.11.1.11 | seed | germinating | Ricinus communis | - |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 1.11.1.11 | 378 | - |
pH 7.5, 25°C | Ricinus communis |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.11.1.11 | guaiacol + H2O2 | 20% of the activity with ascorbate | Ricinus communis | ? + H2O | - |
? | |
| 1.11.1.11 | L-ascorbate + H2O2 | - |
Ricinus communis | dehydroascorbate + H2O | - |
? | |
| 1.11.1.11 | additional information | can cooperate with monodehydroascorbate reductase in glyoxysomal membrane to oxidize NADH, regenerate ascorbate, detoxify H2O2 | Ricinus communis | ? | - |
? | |
| 1.11.1.11 | pyrogallol + H2O2 | 32% of the activity with ascorbate | Ricinus communis | ? + H2O | - |
? | |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 1.11.1.11 | ? | x * 34000, SDS-PAGE | Ricinus communis |
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Release 2023.1 (January 2023)
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