Transcription factors (TFs) of Hydractinia echinata are usually classified into different families according to their conserved DBDs, which was based on the rule of AnimalTFDB 4.0 and self-build HMM profiles.
| zf-C2H2(327) | THAP(225) | HTH(19) | NCU-G1(2) | zf-BED(16) |
| zf-GAGA(12) | Homeobox(144) | ZBTB(125) | bHLH(86) | Fork_head(29) |
| zf-CCCH(52) | PC4(3) | HMG(56) | CSD(12) | DM(14) |
| ETS(35) | TF_bZIP(52) | P53(13) | MH1(14) | ARID(30) |
| zf-LITAF-like(14) | T-box(20) | MYB(45) | E2F(8) | PAX(10) |
| zf-C2HC(8) | MBD(4) | TEA(2) | HSF(9) | Miscellaneous(25) |
| NGFIB-like(23) | RXR-like(27) | THR-like(23) | SRF(8) | ESR-like(26) |
| SF-like(24) | GCNF-like(21) | IRF(11) | Pou(5) | NF-YA(2) |
| CG-1(1) | GCFC(4) | RHD(5) | AF-4(2) | zf-MIZ(5) |
| zf-GATA(10) | RFX(20) | CP2(7) | Tub(2) | SAND(2) |
| CUT(1) | CBF(2) | CSL(4) | zf-NF-X1(3) | GTF2I(3) |
| COE(4) | LRRFIP(3) | AP-2(7) | Nrf1(5) | STAT(5) |
| Runt(1) |
