... interface [8,9]. BTB ⁄ POZ proteins areoften transcriptional regulators containing a C2H2domain for DNA binding, but can also be found in combination with various other protein–protein inter-action ... withCUL3 and other BTB proteins [2,16], it remains unclearwhat kind of interactions are mediated by the MATHdomain in plants. In this article, we show that the MATH domain of BPM proteins is used ... proteins use their BTB ⁄ POZ domain to interactwith the cullins CUL3A and CUL3B [3,4,16], we inves-tigated what kind of protein–protein interactions werefacilitated by their MATH domains by...