... proteins use their BTB ⁄ POZ domain to interact with the cullins CUL3A and CUL3B [3,4,16], we inves-tigated what kind of protein–protein interactions werefacilitated by their MATH domains by ... motifwas noted on the basis of homology with the C-terminalregion of meprins A and B and the TRAF-C domain, and, like the BTB domain, facilitates protein–proteininteraction [24]. Meprins are tissue-specific ... strongeststaining present at the budding lateral root primordia.proBPM3:GUS lines showed clear GUS expression in the root tips, but also in the stipules, anthers and in the central veins and petioles of...