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Literature summary for 5.3.3.11 extracted from
- Metabolism of monoterpenes: oxidation of isopiperitenol to isopiperitenone, and subsequent isomerization to piperitenone by soluble enzyme preparations from peppermint (Mentha piperita) leaves (1985), Arch. Biochem. Biophys., 238, 49-60.
General Stability
| General Stability | Organism |
|---|---|
| stable to dialysis at pH 5.5-9.5 | Mentha x piperita |
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| NEM | - |
Mentha x piperita |  |
| p-hydroxymercuribenzoate | - |
Mentha x piperita | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.27 | - |
isopiperitenone | - |
Mentha x piperita | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 54000 | - |
gel filtration | Mentha x piperita |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| Isopiperitenone | Mentha x piperita | key step in the metabolic pathway for the conversion of the initially formed cyclic olefin (+/-)-limonene, to (-)-menthol and related monoterpenes characteristic of peppermint | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Mentha x piperita | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| partial | Mentha x piperita |
Reaction
| Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|
| Isopiperitenone = piperitenone | double bond migration catalyzed by this enzyme involves an intramolecular 1,3-hydrogen transfer | Mentha x piperita |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Mentha x piperita | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| Isopiperitenone | - |
Mentha x piperita | Piperitenone | - |
? | |
| Isopiperitenone | key step in the metabolic pathway for the conversion of the initially formed cyclic olefin (+/-)-limonene, to (-)-menthol and related monoterpenes characteristic of peppermint | Mentha x piperita | ? | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7.5 | 8.5 | - |
Mentha x piperita |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 7 | 9 | half-maximal activities at pH 7 and 9 | Mentha x piperita |
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