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Literature summary for 3.1.1.11 extracted from
- Simultaneous modelling of the thermal degradation kinetics of pectin methylesterase in lettuce (Lactuca sativa L.) and carrot (Daucus carota L.) extracts: analysis of seasonal variation and tissue type (2007), Biosci. Biotechnol. Biochem., 71, 2383-2392.
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| cell wall | associated | Daucus carota | 5618 | - |
| cell wall | associated | Lactuca sativa | 5618 | - |
| extracellular | - |
Daucus carota | - |
- |
| extracellular | - |
Lactuca sativa | - |
- |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| pectin + H2O | Daucus carota | - |
methanol + pectate | - |
? |  |
| pectin + H2O | Lactuca sativa | - |
methanol + pectate | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Daucus carota | - |
- |
- |
| Lactuca sativa | - |
- |
- |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| proteolytic modification | the inactive enzyme precursor, Pro-PME, is activated to the mature soluble enzyme, which is excreted to the cell wall | Daucus carota |
| proteolytic modification | the inactive enzyme precursor, Pro-PME, is activated to the mature soluble enzyme, which is excreted to the cell wall | Lactuca sativa |
Reaction
| Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|
| pectin + n H2O = n methanol + pectate | reaction mechanism | Daucus carota | |
| pectin + n H2O = n methanol + pectate | reaction mechanism | Lactuca sativa |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | photosynthetic active and vascular tissues | Lactuca sativa | - |
| phloem | - |
Daucus carota | - |
| root | - |
Daucus carota | - |
| xylem | - |
Daucus carota | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| pectin + H2O | - |
Daucus carota | methanol + pectate | - |
? | |
| pectin + H2O | - |
Lactuca sativa | methanol + pectate | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| pectin methylesterase | - |
Daucus carota |
| pectin methylesterase | - |
Lactuca sativa |
| PME | - |
Daucus carota |
| PME | - |
Lactuca sativa |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 20 | - |
assay at | Daucus carota |
| 20 | - |
assay at | Lactuca sativa |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 55 | 70 | PME thermal degradation kinetics, modeling, overview | Daucus carota |
| 55 | 70 | PME thermal degradation kinetics, modeling, overview | Lactuca sativa |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7.5 | - |
assay at | Daucus carota |
| 7.5 | - |
assay at | Lactuca sativa |
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