| Gene | Description | Domains |
|---|---|---|
| Spis_XP_022782423_1 | carbamoyl phosphate synthase 1 | CPSase_L_D2, CPSase_L_D3, CPSase_sm_chain, GATase, MGS |
| Spis_XP_022798866_1 | carbamoyl phosphate synthetase 2 aspartate transcarbamylase and dihydroorotase | Amidohydro_1, CPSase_L_D2, CPSase_L_D3, CPSase_sm_chain, GATase, MGS, OTCace, OTCace_N |