Figure 3. Localization of hGLUT9A in overexpressing MDCK cells (A) compared to cells overexpressing hGLUT9A with the N-terminus LL→AA Mutation (B).
hGLUT9A cDNA with the WT dileucine motif was cloned into a mammalian expression vector and stably overexpressed in MDCK cells. Immunofluorescent staining with a polyclonal antibody to the C-terminus reveals a basolateral membrane sorting pattern (A). The same pattern is seen in the construct containing a LL→AA mutation in the N-terminus (B).