(2) Zinc finger DNA-binding domains: general transcription factors · kruppel-like transcription factors · early growth response transcription factor · GATA transcription factor
(3) Helix-turn-helix domains: c-ets (ETS1, ETS2) · winged-helix transcription factors · POU family · paired box transcription factors
(4) β-Scaffold factors with minor groove contacts: T-box domain proteins · SOX transcription factors · tcf transcription factors · NF-κB