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Literature summary extracted from
- Adenosine 5' phosphosulfate reductase and sulfite oxidase regulate sulfite-induced water loss in Arabidopsis (2021), J. Exp. Bot., 72, 6447-6466 .
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 1.8.3.1 | tungstate | complete inhibition at 1 mM | Arabidopsis thaliana |  |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 1.8.4.9 | chloroplast | - |
Arabidopsis thaliana | 9507 | - |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.8.3.1 | sulfite + O2 + H2O | Arabidopsis thaliana | - |
sulfate + H2O2 | - |
? | |
| 1.8.3.1 | sulfite + O2 + H2O | Arabidopsis thaliana Col-0 | - |
sulfate + H2O2 | - |
? | |
| 1.8.4.9 | adenylyl sulfate + 2 glutathione | Arabidopsis thaliana | - |
AMP + sulfite + glutathione disulfide | - |
? | |
| 1.8.4.9 | adenylyl sulfate + 2 glutathione | Arabidopsis thaliana Col-0 | - |
AMP + sulfite + glutathione disulfide | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 1.8.3.1 | Arabidopsis thaliana | - |
ecotype Col-0 | - |
| 1.8.4.9 | Arabidopsis thaliana | - |
- |
- |
| 1.8.4.9 | Arabidopsis thaliana Col-0 | - |
- |
- |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 1.8.3.1 | leaf | - |
Arabidopsis thaliana | - |
| 1.8.4.9 | leaf | - |
Arabidopsis thaliana | - |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.8.3.1 | sulfite + O2 + H2O | - |
Arabidopsis thaliana | sulfate + H2O2 | - |
? | |
| 1.8.3.1 | sulfite + O2 + H2O | - |
Arabidopsis thaliana Col-0 | sulfate + H2O2 | - |
? | |
| 1.8.4.9 | adenylyl sulfate + 2 glutathione | - |
Arabidopsis thaliana | AMP + sulfite + glutathione disulfide | - |
? | |
| 1.8.4.9 | adenylyl sulfate + 2 glutathione | - |
Arabidopsis thaliana Col-0 | AMP + sulfite + glutathione disulfide | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 1.8.4.9 | adenosine-5'-phosphosulphate reductase | - |
Arabidopsis thaliana |
| 1.8.4.9 | APR | - |
Arabidopsis thaliana |
General Information
| EC Number | General Information | Comment | Organism |
|---|---|---|---|
| 1.8.3.1 | malfunction | impairment in enzyme activity results in enhanced water consumption | Arabidopsis thaliana |
| 1.8.3.1 | physiological function | the enzyme plays an important role in sulfite homeostasis and stomatal closure | Arabidopsis thaliana |
| 1.8.4.9 | physiological function | chloroplast-localized adenosine-5'-phosphosulphate reductase (APR) generates sulfite and plays a pivotal role in reduction of sulfate to cysteine. The increases in APR activity in response to sulfite infiltration into wild-type and sulfite oxidase (SO)-deficient mutant leaves result in an increase in endogenous sulfite, indicating that APR has an important role in sulfite-induced increases in stomatal aperture. The importance of APR and SO and the significance of sulfite concentrations in water loss are further demonstrated during rapid, harsh drought stress in root-detached wild-type, gr2 and SO transgenic plants. Effects of sulfite infiltration on water status and sulfite accumulation in wild-type and sulfite oxidase overexpressing and deficient mutant leaves, overview | Arabidopsis thaliana |
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Release 2023.1 (January 2023)
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