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Literature summary for 4.1.1.1 extracted from
- Analysis of the role of the pyruvate decarboxylase gene family in Arabidopsis thaliana under low-oxygen conditions (2013), Plant Biol., 16, 28-34.
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| Mg2+ | required | Arabidopsis thaliana |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Arabidopsis thaliana | - |
- |
- |
| Arabidopsis thaliana | O82647 | isozyme PDC1; four genes encoding PDC isozymes | - |
| Arabidopsis thaliana | Q9FFT4 | isozyme PDC2; gene PDC2 | - |
| Arabidopsis thaliana | Q9M039 | isozyme PDC3; gene PDC3 | - |
| Arabidopsis thaliana | Q9M040 | isozyme PDC4; gene PDC4 | - |
| Arabidopsis thaliana Col-0 | O82647 | isozyme PDC1; four genes encoding PDC isozymes | - |
| Arabidopsis thaliana Col-0 | Q9FFT4 | isozyme PDC2; gene PDC2 | - |
| Arabidopsis thaliana Col-0 | Q9M039 | isozyme PDC3; gene PDC3 | - |
| Arabidopsis thaliana Col-0 | Q9M040 | isozyme PDC4; gene PDC4 | - |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | PDC2 appears to be leaf-specific | Arabidopsis thaliana | - |
| leaf | isoform PDC2 is predominantly present in leaves | Arabidopsis thaliana | - |
| root | PDC1 is predominantly present in roots | Arabidopsis thaliana | - |
| root | isoform PDC1 is predominantly present in roots | Arabidopsis thaliana | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| pyruvate | - |
Arabidopsis thaliana | acetaldehyde + CO2 | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| PDC | - |
Arabidopsis thaliana |
| PDC1 | isoform | Arabidopsis thaliana |
| PDC2 | - |
Arabidopsis thaliana |
| PDC2 | isoform | Arabidopsis thaliana |
| PDC3 | - |
Arabidopsis thaliana |
| PDC4 | - |
Arabidopsis thaliana |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7 | - |
assay at | Arabidopsis thaliana |
Expression
| Organism | Comment | Expression |
|---|---|---|
| Arabidopsis thaliana | gene PDC3 is not regulated by low-oxygen stress | additional information |
| Arabidopsis thaliana | gene PDC4 is not regulated by low-oxygen stress | additional information |
| Arabidopsis thaliana | expression of both PDC1 and PDC2 is strongly upregulated under low oxygen | up |
| Arabidopsis thaliana | the expression of both isoforms PDC1 and PDC2 is strongly up-regulated under low oxygen | up |
General Information
| General Information | Comment | Organism |
|---|---|---|
| malfunction | mutations in both PDC1 and PDC2 result in lower tolerance to submergence | Arabidopsis thaliana |
| metabolism | activities of pyruvate decarboxylase and alcohol dehydrogenase are required for the fermentative pathway, with ethanol as the predominant end product | Arabidopsis thaliana |
| metabolism | activities of pyruvate decarboxylase and alcohol dehydrogenase are required for the fermentative pathway, with ethanol as the predominant end product. Not only isozyme PDC1 but also isozyme PDC2 play a role under hypoxic conditions. The enzyme has a role under aerobic conditions, which is not coupled to fermentative metabolism | Arabidopsis thaliana |
| physiological function | isozymes PDC1 and PDC2 are involved in low-oxygen responses, whereas isozymes PDC3 and PDC4 are not affected by hypoxia/anoxia conditions | Arabidopsis thaliana |
| physiological function | both isoforms PDC1 and PDC2 contribute to anoxia tolerance in Arabidopsis | Arabidopsis thaliana |
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