| F [auth K] | IPR006110 | RNA polymerase, subunit omega/Rpo6/RPB6 | Family |
| F [auth K] | IPR036161 | RPB6/omega subunit-like superfamily | Homologous Superfamily |
| F [auth K] | IPR003716 | DNA-directed RNA polymerase, omega subunit | Family |
| E [auth J] | IPR007066 | RNA polymerase Rpb1, domain 3 | Domain |
| E [auth J] | IPR007081 | RNA polymerase Rpb1, domain 5 | Domain |
| E [auth J] | IPR045867 | DNA-directed RNA polymerase, subunit beta-prime | Family |
| E [auth J] | IPR012754 | DNA-directed RNA polymerase, subunit beta-prime, bacterial type | Family |
| E [auth J] | IPR042102 | RNA polymerase Rpb1, domain 3 superfamily | Homologous Superfamily |
| E [auth J] | IPR007083 | RNA polymerase Rpb1, domain 4 | Domain |
| E [auth J] | IPR000722 | RNA polymerase, alpha subunit | Domain |
| E [auth J] | IPR044893 | RNA polymerase Rpb1, clamp domain superfamily | Homologous Superfamily |
| E [auth J] | IPR038120 | RNA polymerase Rpb1, funnel domain superfamily | Homologous Superfamily |
| E [auth J] | IPR006592 | RNA polymerase, N-terminal | Domain |
| E [auth J] | IPR007080 | RNA polymerase Rpb1, domain 1 | Domain |
| D [auth I] | IPR007642 | RNA polymerase Rpb2, domain 2 | Domain |
| D [auth I] | IPR015712 | DNA-directed RNA polymerase, subunit 2 | Family |
| D [auth I] | IPR037033 | DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily | Homologous Superfamily |
| D [auth I] | IPR042107 | DNA-directed RNA polymerase, beta subunit, external 1 domain superfamily | Homologous Superfamily |
| D [auth I] | IPR037034 | RNA polymerase Rpb2, domain 2 superfamily | Homologous Superfamily |
| D [auth I] | IPR007120 | DNA-directed RNA polymerase, subunit 2, hybrid-binding domain | Domain |
| D [auth I] | IPR007121 | RNA polymerase, beta subunit, conserved site | Conserved Site |
| D [auth I] | IPR007645 | RNA polymerase Rpb2, domain 3 | Domain |
| D [auth I] | IPR014724 | RNA polymerase Rpb2, OB-fold | Homologous Superfamily |
| D [auth I] | IPR019462 | DNA-directed RNA polymerase, beta subunit, external 1 domain | Domain |
| D [auth I] | IPR010243 | DNA-directed RNA polymerase beta subunit, bacterial-type | Family |
| D [auth I] | IPR007644 | RNA polymerase, beta subunit, protrusion | Domain |
| D [auth I] | IPR007641 | RNA polymerase Rpb2, domain 7 | Domain |
B [auth G], C [auth H] | IPR011773 | DNA-directed RNA polymerase, alpha subunit | Family |
B [auth G], C [auth H] | IPR011262 | DNA-directed RNA polymerase, insert domain | Domain |
B [auth G], C [auth H] | IPR011260 | RNA polymerase, alpha subunit, C-terminal | Domain |
B [auth G], C [auth H] | IPR011263 | DNA-directed RNA polymerase, RpoA/D/Rpb3-type | Domain |
B [auth G], C [auth H] | IPR036643 | DNA-directed RNA polymerase, insert domain superfamily | Homologous Superfamily |
B [auth G], C [auth H] | IPR036603 | RNA polymerase, RBP11-like subunit | Homologous Superfamily |
| IPR004576 | Transcription-repair coupling factor | Family |
| IPR041471 | UvrB, interaction domain | Domain |
| IPR036101 | CarD-like/TRCF, RNAP-interacting domain superfamily | Homologous Superfamily |
| IPR001650 | Helicase, C-terminal domain-like | Domain |
| IPR014001 | Helicase superfamily 1/2, ATP-binding domain | Domain |
| IPR037235 | TRCF-like, C-terminal D7 domain | Homologous Superfamily |
| IPR048635 | Transcription-repair-coupling factor, D3 domain | Domain |
| IPR047112 | ATP-dependent DNA helicase RecG/Transcription-repair-coupling factor | Family |
| IPR003711 | CarD-like/TRCF, RNAP-interacting domain | Domain |
| IPR011545 | DEAD/DEAH-box helicase domain | Domain |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| IPR005118 | Transcription-repair-coupling factor, C-terminal domain | Domain |