Interacts with TLP1. May form heterodimeric complexes with TALE/KNOX proteins (By similarity). Interacts with OFP1, OFP2, OFP4 and OFP5. The SR/KY and BELL domains are responsive for the interaction between the TALE/BELL proteins and the TALE/KNOX proteins. May be due to a competing acceptor splice site. Belongs to the TALE/BELL homeobox family.