| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Spis_XP_022778744_1 | — | HPPK, Pterin_bind | — |
| Spis_XP_022778832_1 | — | AlaDh_PNT_C, NAD_binding_2, Pterin_bind, THF_DHG_CYH, THF_DHG_CYH_C | — |
| Spis_XP_022782268_1 | 5-methyltetrahydrofolate-homocysteine methyltransferase | B12-binding, B12-binding_2, CdhD, Cgr1, HisG_C, Met_synt_B12, Pterin_bind, S-methyl_trans | — |
| Spis_XP_022809927_1 | — | B12-binding, B12-binding_2, Met_synt_B12, Pterin_bind | — |