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Nuclear localization of C2 zinc-finger mutants. Fluorescence was observed with filters for GFP (450- to 490-nm excitation, 520-nm long-pass emission) (top panels) and DAPI (365-nm excitation, 420-nm long-pass emission) (bottom panels). Chloroplast autofluorescence appears red. Bar = 10 μm, indicating that the ratios between the sizes of cells and nuclei are similar.
