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. May be involved in the induction of the systemic acquired resistance (SAR) via its interaction with NPR1 (By similarity). Binds DNA as a dimer. Interacts with NPR1 and NPR4. Interacts with GRXC7/ROXY1. Belongs to the bZIP family.