| Domain | Name | Category | Type |
| IPR000504 | RNA recognition motif domain | Domain | Domain |
| IPR002004 | Polyadenylate-binding protein/Hyperplastic disc protein | Domain | Domain |
| IPR003954 | RNA recognition motif domain, eukaryote | Domain | Domain |
| IPR006515 | Polyadenylate binding protein, human types 1, 2, 3, 4 | Family | Family |
| IPR012677 | Nucleotide-binding alpha-beta plait domain superfamily | Family | Homologous superfamily |
| IPR035979 | RNA-binding domain superfamily | Family | Homologous superfamily |
| IPR036053 | PABC (PABP) domain | Family | Homologous superfamily |