Background:
Probable transcription factor that acts as positivie regulator of brassinosteroid (BR) signaling (PubMed:19220793, PubMed:22685166). Functions downstream of BRI1 and GSK2 to modulate BR responses. Acts as a direct target of GSK2 kinase to mediate BR responses (PubMed:22685166). Involved in feedback inhibition of BR biosynthetic genes. Repressed by BZR1 (PubMed:19220793). Cooperatively functions in a transactivating complex with SMOS1 to enhance the transcription of the SMOS1 target PHI-1, and regulate plant organ size (PubMed:28069545). Interaction between SMOS1 and DLT is a crosstalk point for auxin and brassinosteroid signaling (PubMed:28069545).