| Tryptophan cluster factors | 1 |
| GCM domain factors | 2 |
| AP2/EREBP | 3 |
| Basic helix-loop-helix factors (bHLH) | 4 |
| Other C4 zinc finger-type factors | 5 |
| Basic leucine zipper factors (bZIP) | 6 |
| Homeo domain factors | 7 |
| B3 | 8 |
| C2H2 zinc finger factors | 9 |
| MADS box factors | 10 |
| Heat shock factors | 11 |
| CPP | 12 |
| AP2/ERF domain | 13 |
| Heteromeric CCAAT-binding factors | 14 |
| CH3 | 15 |
| ARID | 16 |
| CAMTA | 17 |
| Fork head/winged helix factors | 18 |
| GeBP/Storekeeper | 19 |
| A.T hook factors | 20 |
| BBR/BPC | 21 |
| RWP-RK | 22 |
| SBP | 23 |
| beta-Hairpin exposed by an alpha/beta-scaffold | 24 |
| C3H zinc finger factors | 25 |
| CHC2-C2H2-C4 zinc finger factors | 26 |
| EIL | 27 |
| GRAS | 28 |
| LEAFY | 29 |
| mTERF | 30 |
| Nuclear receptors with C4 zinc fingers | 31 |
| S1Fa-like | 32 |
| Unknown | 33 |
| * | Unvalidated |
