GFPpkp4 and GFPp120 co-localize with E-cadherin in δCat-KO cells. Maximum-intensity projections of all x–y optical slices of GFPpkp4- and GFPp120-expressing δCat-KO cells lacking endogenous p120, pkp4, and ARVCF, stained for GFP (green) and E-cadherin (red). Bar, 20 μm. Corresponding scatterplots of green versus red relative pixel intensities are shown at right panel, with r values indicated in the upper right corners. Note that both GFPpkp4 and GFPp120 display an almost perfect positive correlation with E-cadherin.