Transcriptional activator that binds specifically to the DNA sequence 5'-TGACG-3'. Recognizes ocs elements like the as-1 motif of the cauliflower mosaic virus 35S promoter. Binding to the as-1-like cis elements mediate auxin- and salicylic acid-inducible transcription. TGA21 456 MASKIGTAGNRSGTTGMPSFISQIPVSNPMGTEANNTNTSRMSDFGVLEQYLGFRIGDGANVNRSPLFNSTSATNPAVGFEVSGTINRTLAPSNTSLPTATPRSQTMLLQSNLVSASGTHHENWGESNMADSGSRTDTSTDMDGDDKNQLIEAGQSSDKSKEKVLDQKTLRRLAQNREAARKSRLRKKAYVQQLENSRLKLSQLEQDLQRARQQGKYISNIADQSNGVGANGPLAFDAEYSRWLEEHNKHINELRTAVNAHASDPELRSIVNNVTAHFDEVFRVKGNAAKADVFHVLSGMWKTPAERCFMWIGGFRPSELLKLLVNQLEPLTEQQLAGIYNLQQSSHQAEDALSQGMEALQQSLAETLANGSPAPEGSSGDVANYMGQMAMAMGKLGTLEGFLRQADNLRQQTLQQMHRVLTTRQSARALLAINEYFSRLRALSSLWLARPREQLV TGA21_TOBAC TGACG-sequence-specific DNA-binding protein TGA-2.1