| Domain | Name | Category | Type |
| IPR000980 | SH2 domain | Domain | Domain |
| IPR003029 | S1 domain | Domain | Domain |
| IPR006641 | YqgF/RNase H-like domain | Domain | Domain |
| IPR010994 | RuvA domain 2-like | Family | Homologous superfamily |
| IPR012337 | Ribonuclease H-like superfamily | Family | Homologous superfamily |
| IPR012340 | Nucleic acid-binding, OB-fold | Family | Homologous superfamily |
| IPR017072 | Transcription elongation factor Spt6 | Family | Family |
| IPR022967 | RNA-binding domain, S1 | Domain | Domain |
| IPR028083 | Spt6 acidic, N-terminal domain | Domain | Domain |
| IPR028088 | Helix-turn-helix DNA-binding domain of Spt6 | Domain | Domain |
| IPR028231 | Transcription elongation factor Spt6, YqgF domain | Domain | Domain |
| IPR032706 | Transcription elongation factor Spt6, helix-hairpin-helix motif | Domain | Domain |
| IPR035018 | Spt6, SH2 domain, C terminus | Domain | Domain |
| IPR035019 | Spt6, SH2 domain, N terminus | Domain | Domain |
| IPR035420 | Spt6, SH2 domain | Domain | Domain |
| IPR036860 | SH2 domain superfamily | Family | Homologous superfamily |
| IPR041692 | HHH domain 9 | Domain | Domain |