| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| TrH2_TrispH2_004621 | spermidine synthase | DREV, Methyltransf_12, Methyltransf_18, Methyltransf_24, Methyltransf_25, Methyltransf_3, RrnaAD, Spermine_synth, Spermine_synt_N | — |
| TrH2_TrispH2_009004 | spermine synthase | 2OG-FeII_Oxy_2, Spermine_synth, Spermine_synt_N | — |