| IPR007066 | RNA polymerase Rpb1, domain 3 | Domain |
| IPR007081 | RNA polymerase Rpb1, domain 5 | Domain |
| IPR045867 | DNA-directed RNA polymerase, subunit beta-prime | Family |
| IPR012754 | DNA-directed RNA polymerase, subunit beta-prime, bacterial type | Family |
| IPR042102 | RNA polymerase Rpb1, domain 3 superfamily | Homologous Superfamily |
| IPR007083 | RNA polymerase Rpb1, domain 4 | Domain |
| IPR000722 | RNA polymerase, alpha subunit | Domain |
| IPR044893 | RNA polymerase Rpb1, clamp domain superfamily | Homologous Superfamily |
| IPR038120 | RNA polymerase Rpb1, funnel domain superfamily | Homologous Superfamily |
| IPR006592 | RNA polymerase, N-terminal | Domain |
| IPR007080 | RNA polymerase Rpb1, domain 1 | Domain |
| IPR043425 | NusG-like | Family |
| IPR001062 | Transcription antitermination protein, NusG | Family |
| IPR036735 | NusG, N-terminal domain superfamily | Homologous Superfamily |
| IPR014722 | Large ribosomal subunit protein uL2, domain 2 | Homologous Superfamily |
| IPR015869 | Transcription antitermination protein, NusG, bacteria, conserved site | Conserved Site |
| IPR008991 | Translation protein SH3-like domain superfamily | Homologous Superfamily |
| IPR047050 | NusG, N-terminal | Domain |
| IPR005824 | KOW | Domain |
| IPR006645 | NusG-like, N-terminal | Domain |