| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Spis_XP_022777621_1 | guanine monophosphate synthase | GATase, GMP_synt_C, NAD_synthase | — |
| Spis_XP_022787009_1 | guanine monophosphate synthase | GATase, GMP_synt_C, NAD_synthase | — |
| Spis_XP_022794365_1 | NAD synthetase 1 | CN_hydrolase, NAD_synthase | — |