| Protein | Synonyms | Taxonomy |
|---|---|---|
| Deoxyhypusine synthase | EC 2.5.1.46 | Nicotiana tabacum (common tobacco) |
| Homospermidine synthase | EC 2.5.1.45 | Senecio vulgaris |
| Homospermidine synthase 1 | EC 2.5.1.45 | Senecio vernalis |
| Compound | Description |
|---|---|
| Spermidine | A polyamine formed from putrescine. It is found in almost all tissues in association with nucleic acids. It is found as a cation at all pH values, and is thought to help stabilize some membranes and nucleic acid structures. It is a precursor of spermine. |