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Literature summary for 1.5.3.14 extracted from
- Polyamine oxidase activity contributes to sustain maize leaf elongation under saline stress (2009), J. Exp. Bot., 60, 4249-4262.
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 1,8-diaminooctane | - |
Zea mays |  |
| diphenylene iodonium | slight inhibition of PAO | Zea mays | |
| additional information | no inhibition by 1,3-diaminopropane | Zea mays | |
| SL-11061 | i.e. 1,19-bis-(ethylamine)-5,10,15 triazanonadecane | Zea mays | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.0177 | - |
spermine | pH 6.5, 30°C | Zea mays | |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| apoplast | - |
Zea mays | 48046 | - |
| extracellular | - |
Zea mays | - |
- |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| NaCl | salt increases PAO activity | Zea mays | |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | Zea mays | analysis of polymaine content in leaves under different salt conditions, overview | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Zea mays | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| native enzyme from apoplastic fluids of leaf blade segments | Zea mays |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | apoplast | Zea mays | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
PAO activity in unsalinized and salt-treated plants, overview | Zea mays |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | analysis of polymaine content in leaves under different salt conditions, overview | Zea mays | ? | - |
? | |
| spermidine + O2 + H2O | - |
Zea mays | propane-1,3-diamine + 4-aminobutanal + H2O2 | - |
? | |
| spermine + O2 + H2O | - |
Zea mays | spermidine + propane-1,3-diamine + H2O2 | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| PAO | - |
Zea mays |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 30 | - |
assay at | Zea mays |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 6.5 | - |
- |
Zea mays |
General Information
| General Information | Comment | Organism |
|---|---|---|
| physiological function | polyamine oxidase activity contributes to sustain maize leaf elongation under saline stress providing a significant production of reactive oxygen species in the apoplast | Zea mays |
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Release 2023.1 (January 2023)
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