MeSH definition : A helix-turn-helix motif characterized by three alpha-helices and four-stranded beta-sheets
arranged in the order alpha1-beta1-beta2-alpha2-alpha3-beta3-beta4. The third alpha-helix
contacts the major groove of DNA. The ETS motif and the flanking amino acid sequences
of Ets proteins influence the binding affinity, and the alteration of a single amino
acid in the Ets domain can change its DNA binding specificity.;
A helix-turn-helix motif characterized by three alpha-helices and four-stranded beta-sheets
arranged in the order alpha1-beta1-beta2-alpha2-alpha3-beta3-beta4. The third alpha-helix
contacts the major groove of DNA. The ETS motif and the flanking amino acid sequences
of Ets proteins influence the binding affinity, and the alteration of a single amino
acid in the Ets domain can change its DNA binding specificity.