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Literature summary for 2.7.2.2 extracted from
- Enzymic conversion of agmatine to putrescine in Lathyrus sativus seedlings. Purification and properties of a multifunctional enzyme (putrescine synthase) (1981), J. Biol. Chem., 256, 9532-9541.
General Stability
| General Stability | Organism |
|---|---|
| all the component activities associated with putrescine synthase are stabilized in dilute solutions, 0.05 mg of protein per ml, for about 3-4 h at 37°C by 0.250 mg/ml bovine serum albumin | Lathyrus sativus |
| prolonged dialysis and freeze-thawing, loss of activity | Lathyrus sativus |
| purified enzyme is highly unstable even in presence of glycerol, dithiothreitol and Mg2+ | Lathyrus sativus |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| ATP + NH3 + CO2 | Lathyrus sativus | multifunctional enzyme, involved in biosynthesis of putrescine | ADP + carbamoyl phosphate | - |
r |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Lathyrus sativus | - |
enzyme has inherent activities of agmatine iminohydrolase, putrescine transcarbamylase, ornithine transcarbamylase and carbamate kinase | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| enzyme has inherent activities of agmatine iminohydrolase, putrescine transcarbamylase, ornithine transcarbamylase and carbamate kinase | Lathyrus sativus |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| seedling | - |
Lathyrus sativus | - |
Storage Stability
| Storage Stability | Organism |
|---|---|
| 4°C, 48 h, complete loss of activity | Lathyrus sativus |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| ADP + carbamoyl phosphate | - |
Lathyrus sativus | ATP + NH3 + CO2 | - |
r | |
| ATP + NH3 + CO2 | - |
Lathyrus sativus | ADP + carbamoyl phosphate | - |
r | |
| ATP + NH3 + CO2 | multifunctional enzyme, involved in biosynthesis of putrescine | Lathyrus sativus | ADP + carbamoyl phosphate | - |
r | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| putrescine synthase | enzyme has inherent activities of agmatine iminohydrolase, putrescine transcarbamylase, ornithinetranscarbamylase and carbamate kinase | Lathyrus sativus |
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