InterPro domain: IPR006734

This family represents plant AT-rich sequence and zinc-binding proteins (PLATZ), which are zinc dependent DNA binding proteins. They bind to AT rich sequences and functions in transcriptional repression [ 1 ]. Included in this family is the protein RGF1 INDUCIBLE TRANSCRIPTION FACTOR 1 (RITF1), a transcription factor that plays a central role in mediating RGF1 hormone peptide signalling, leading to the production of reactive oxygen species (ROS) in roots to modulate meristem size and root growth, probably via oxidative post-translational modification of the transcription factor PLETHORA [ 2 ].

1. A novel class of plant-specific zinc-dependent DNA-binding protein that binds to A/T-rich DNA sequences. Nucleic Acids Res. 29, 4097-105
2. RGF1 controls root meristem size through ROS signalling. Nature 577, 85-88