| Gene | Description | Domains |
|---|---|---|
| Spis_XP_022800981_1 | inosine monophosphate dehydrogenase 2 | CBS, IMPDH |
| Spis_XP_022806118_1 | guanosine monophosphate reductase 2 | IMPDH |
| Spis_XP_022806628_1 | inosine monophosphate dehydrogenase 2 | CBS, IMPDH |
| Spis_XP_022808917_1 | inosine monophosphate dehydrogenase 2 | CBS, IMPDH, tRNA-synt_2 |