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Literature summary for 3.4.22.2 extracted from
- Papain (1998), Handbook of proteolytic enzymes (Barrett, A. J. , Rawlings, N. D. , Woessner, J. F. , eds. ) Academic Press, , 555-557.
No PubMed abstract available
General Stability
| General Stability | Organism |
|---|---|
| retains activity in 8 M urea | Carica papaya |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 23429 | - |
x * 23429, calculation from amino acid sequence | Carica papaya |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | Carica papaya | the enzyme may play a protective role guarding the plant against attack by pests such as insects and fungi | ? | - |
? |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Carica papaya | - |
- |
- |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| no modification | nonglycosylated enzyme | Carica papaya |
| side-chain modification | the enzyme is produced as an inactive precursor | Carica papaya |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| fruit | green unripe fruit | Carica papaya | - |
| latex | - |
Carica papaya | - |
Storage Stability
| Storage Stability | Organism |
|---|---|
| 4°C, several months, most stable in a reversibly inactivated form, e.g. mercuripapain | Carica papaya |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | the enzyme may play a protective role guarding the plant against attack by pests such as insects and fungi | Carica papaya | ? | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| ? | x * 23429, calculation from amino acid sequence | Carica papaya |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 80 | - |
stable up to | Carica papaya |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 10 | stable | Carica papaya |
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Release 2023.1 (January 2023)
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