InterPro domain: IPR025422

This entry represents a domain found in plant transcription factors, including TGA proteins and protein PERIANTHIA. In Arabidopsis thaliana, there are seven TGA paralogues (TGA 1-7), which are transcriptional activators that binds specifically to the DNA sequence 5'-TGACG-3' [ 1 , 2 ]. Another Arabidopsis thaliana protein in this entry, PERIANTHIA, binds to the 5'-AAGAAT-3' cis-acting element found in AG promoter and is involved in the determination of floral organ number [ 3 ].

1. The Arabidopsis NPR1 disease resistance protein is a novel cofactor that confers redox regulation of DNA binding activity to the basic domain/leucine zipper transcription factor TGA1. Plant Cell 15, 2181-91
2. Salicylic acid and NPR1 induce the recruitment of trans-activating TGA factors to a defense gene promoter in Arabidopsis. Plant Cell 15, 1846-58
3. Dual roles of the bZIP transcription factor PERIANTHIA in the control of floral architecture and homeotic gene expression. Development 136, 1613-20