| Gene | Description | Domains |
|---|---|---|
| Spis_XP_022785205_1 | SMAD MH1.NFIA/NFIB/NFIC/NFIX | MH1, NfI_DNAbd_pre-N |
| Spis_XP_022786844_1 | SMAD MH1.like:SMAD1/SMAD2/SMAD3/SMAD5/SMAD9 | MH1, MH2 |
| Spis_XP_022787232_1 | SMAD MH1.like:SMAD1/SMAD2/SMAD3/SMAD5/SMAD9 | MH1, MH2 |
| Spis_XP_022799041_1 | SMAD MH1.like:SMAD4 | MH1, PHD, zf-HC5HC2H |
| Spis_XP_022799176_1 | SMAD MH1.SMAD2/SMAD3 | MH1, MH2 |
| Spis_XP_022799192_1 | SMAD MH1.SMAD6/SMAD7 | MH1, MH2 |
| Spis_XP_022804191_1 | SMAD MH1.SMAD4 | MH1, MH2 |