| Basic helix-loop-helix factors (bHLH) |
| Homeo domain factors |
| Nuclear receptors with C4 zinc fingers |
| ARID domain factors |
| Basic leucine zipper factors (bZIP) |
| C2H2 zinc finger factors |
| CENP-B |
| DM-type intertwined zinc finger factors |
| Fork head / winged helix factors |
| Rel homology region (RHR) factors |
| Tryptophan cluster factors |
| T-Box factors |
| Other C4 zinc finger-type factors |
| GCM domain factors |
| SAND domain factors |
| Grainyhead domain factors |
| Heat shock factors |
| High-mobility group (HMG) domain factors |
| CRC domain |
| MADS box factors |
| SMAD/NF-1 DNA-binding domain factors |
| Other alpha |
| Heteromeric CCAAT-binding factors |
| Paired box factors |
| Runt domain factors |
| STAT domain factors |
| TATA-binding proteins |
| TEA domain factors |
| Basic helix-span-helix factors (bHSH) |
| C2CH THAP-type zinc finger factors |
| p53 domain factors |
| SKI / DACH domain factors |
| A.T hook factors |
| Unknown |
| Cold-shock domain factors |
| * | Non-validated |