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Literature summary extracted from
- Papain protects papaya tress from herbivorous insects: role of cysteine proteases in latex (2004), Plant J., 37, 370-374.
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.4.22.2 | E64 | strong irreversible inhibition in vivo | Carica papaya |  |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 3.4.22.2 | extracellular | latex | Carica papaya | - |
- |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.4.22.2 | additional information | Carica papaya | papain protects papaya trees from herbivorous insects, e.g. lepidoteran larvae of Samia ricini or polyphagous pests Mamestra brassicae and Spodoptera litura, the enzyme is toxic for the insect larvae, overview | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.4.22.2 | Carica papaya | - |
- |
- |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 3.4.22.2 | latex | in leaves | Carica papaya | - |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 3.4.22.2 | additional information | - |
toxic effects on insect larvae by latex enzyme and protease activity in papaya leaves, overview | Carica papaya |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.4.22.2 | additional information | papain protects papaya trees from herbivorous insects, e.g. lepidoteran larvae of Samia ricini or polyphagous pests Mamestra brassicae and Spodoptera litura, the enzyme is toxic for the insect larvae, overview | Carica papaya | ? | - |
? | |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.4.22.2 | 25 | - |
assay at | Carica papaya |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.4.22.2 | 7 | - |
assay at | Carica papaya |
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Release 2023.1 (January 2023)
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