May form heterodimeric complexes with TALE/KNOX proteins KNAT2 and KNAT 5. Interacts with OFP1, OFP2, OFP3, OFP4, OFP5 and OFP15. The SR/KY and BELL domains are responsive for the interaction between the TALE/BELL proteins and the TALE/KNOX proteins. Belongs to the TALE/BELL homeobox family.