| Gene | Description | Domains |
|---|---|---|
| Spis_XP_022781643_1 | spermine synthase | Spermine_synth |
| Spis_XP_022785394_1 | spermidine synthase | Spermine_synth, Spermine_synt_N |
| Spis_XP_022795921_1 | spermine synthase | Spermine_synth, Spermine_synt_N |
| Spis_XP_022796002_1 | spermine synthase | Spermine_synth, Spermine_synt_N |
| Spis_XP_022797887_1 | eEF1A lysine and N terminal methyltransferase | Methyltransf_25, Spermine_synth |