Fig. 5.
K12 and K39 serve as putative ubiquitin-acceptor lysine residues. Yeast cells (WT) expressing indicated Hxt1-GFP proteins were grown as described in Fig. 2A. Plasma membrane fractions were immunoblotted with anti-GFP antibody (A), and subcellular localization of Hxt1-GFP (Wt, K12A and K39A) was analyzed by confocal microscopy (B).