| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Brf1 | — | BRF1, BRF2-like_C_cyclin_rpt, Cyclin_N, RB_B, TFIIB, Zn_Ribbon_TF, Zn_ribbon_tTFIIB | Transcription factors |
| Gtf2b | — | BRF2-like_C_cyclin_rpt, Cyclin_C, Cyclin_N, KIF9, RB_B, Sigma70_r4, TFIIB, Zn_Ribbon_TF | Transcription factors |
| Rb1 | — | DUF3452, RB_A, RB_B, Rb_C, RuvC_1, TFIIB | — |
| Rbl1 | — | DUF3452, RB_A, RB_B, Rb_C, TFIIB | — |
| Rbl2 | — | ARMH2, DUF3452, M1AP_N, Myb_DNA-bind_5, RB_A, RB_B, TFIIB | — |