Localization of AtCPSF30 and the m4 and m9 mutants in cells that also express AtCPSF73(I). GFP-AtCPSF73(I) was co-expressed with DSRed2-AtZFP11 (panels A-C) DSRed2 fused to AtCPSF30 (panels D-F), the m4 mutant (panels G-I), or the m9 mutant (panels J-L). The column labeled "CPSF73-I" denotes the images of the GFP-AtCPSF73(I) fusion protein, and the column labeled "marker" denotes either the DSRed2-AtZFP11 marker (panel A), DSRed2-AtCPSF30 (panel D), DSRed2-m4 (panel G), or DSRed2-m9 (panel J). The inset next to panel F shows a higher magnification of the cell in panel F, emphasizing the appearance of the nucleus. Red bars in the overlay panels are 10 μm size markers.