Cytosolic and nuclear localization of PpHxk4 and PpHxk7a. Fluorescence microscopy pictures of wild type moss protoplasts transiently expressing PpHxk4, the PpHxk7a splice variant, or the PpHxk7b splice variant fused to GFP. GFP fluorescence is shown in green, with the chlorophyll auto-fluorescence in red as a chloroplast marker. The nucleus is visualized in blue by the fluorescent DNA binding dye DAPI. The white bars represent 5 μm.