| Gene | Description | Domains |
|---|---|---|
| Spis_XP_022778332_1 | peptidase M20 domain containing 1 | M20_dimer, Peptidase_M20 |
| Spis_XP_022778610_1 | carnosine dipeptidase 2 | M20_dimer, Peptidase_M20 |
| Spis_XP_022781221_1 | aminoacylase 1 | M20_dimer, Peptidase_M20 |
| Spis_XP_022790056_1 | peptidase M20 domain containing 2 | M20_dimer, Peptidase_M20 |
| Spis_XP_022797505_1 | peptidase M20 domain containing 1 | M20_dimer, Peptidase_M20 |
| Spis_XP_022802481_1 | peptidase M20 domain containing 2 | M20_dimer, Peptidase_M20 |
| Spis_XP_022802484_1 | peptidase M20 domain containing 2 | M20_dimer, Peptidase_M20 |
| Spis_XP_022802485_1 | peptidase M20 domain containing 2 | M20_dimer, Peptidase_M20 |
| Spis_XP_022807715_1 | carnosine dipeptidase 2 | M20_dimer, Peptidase_M20 |