| Domain | Name | Category | Type |
| IPR003196 | Transcription initiation factor IIF, beta subunit | Family | Family |
| IPR011039 | Transcription Factor IIF, Rap30/Rap74, interaction | Family | Homologous superfamily |
| IPR036388 | Winged helix-like DNA-binding domain superfamily | Family | Homologous superfamily |
| IPR036390 | Winged helix DNA-binding domain superfamily | Family | Homologous superfamily |
| IPR040450 | TFIIF beta subunit, HTH domain | Domain | Domain |
| IPR040504 | TFIIF, beta subunit, N-terminal | Domain | Domain |