| Domain | Name | Category | Type |
| IPR001865 | Ribosomal protein S2 | Family | Family |
| IPR005707 | Ribosomal protein S2, eukaryotic/archaeal | Family | Family |
| IPR018130 | Ribosomal protein S2, conserved site | Site | Conserved site |
| IPR023591 | Ribosomal protein S2, flavodoxin-like domain superfamily | Family | Homologous superfamily |
| IPR027498 | Ribosomal protein S2, eukaryotic | Family | Family |
| IPR027504 | 40S ribosomal protein SA | Family | Family |
| IPR032281 | 40S ribosomal protein SA, C-terminal domain | Domain | Domain |