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Literature summary extracted from
- Singlet oxygen scavenging activity of plastoquinol in photosystem II of higher plants: electron paramagnetic resonance spin-trapping study (2010), Biochim. Biophys. Acta, 1797, 1807-1811.
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 1.10.3.9 | membrane | - |
Spinacia oleracea | 16020 | - |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.10.3.9 | 2 H2O + 2 plastoquinone + 4 hv | Spinacia oleracea | - |
O2 + 2 plastoquinol | - |
? |  |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 1.10.3.9 | Spinacia oleracea | - |
- |
- |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 1.10.3.9 | leaf | - |
Spinacia oleracea | - |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.10.3.9 | 2 H2O + 2 plastoquinone + 4 hv | - |
Spinacia oleracea | O2 + 2 plastoquinol | - |
? | |
| 1.10.3.9 | 2 H2O + 2 plastoquinone + 4 hv | illumination of spinach PSII membranes deprived of intrinsic plastoquinone results in 1O2 formation, singlet oxygen scavenging activity of plastoquinol in photosystem II, significantly suppressed by addition of exogenous plastoquinol to plastoquinone-depleted PSII membranes. Presence of exogenous plastoquinols with a different side-chain length causes a similar extent of 1O2 scavenging activity | Spinacia oleracea | O2 + 2 plastoquinol | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 1.10.3.9 | PSII | - |
Spinacia oleracea |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 1.10.3.9 | 6.5 | 7 | assay at | Spinacia oleracea |
General Information
| EC Number | General Information | Comment | Organism |
|---|---|---|---|
| 1.10.3.9 | additional information | plastoquinol exogenously added to plastoquinone-depleted PSII membranes serves as efficient scavenger of 1O2, overview | Spinacia oleracea |
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Release 2023.1 (January 2023)
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