Interaction of Two Suc Transporters, LeSUT1 and LeSUT2, with Different NubG Fusion Proteins.
No interaction with the ubiquitin domain NubG, strong interaction with LeSUT1, LeSUT2, and LeSUT4, no interaction with the control protein KAT1, and weak interaction of LeSUT2 with the related protein STP1 were detected. Positive interaction was visualized as β-galactosidase activity as determined by filter assays.