Figure 1.

(A) Phase contrast, GFP localization (green), and E-cadherin (red) detection in a confluent co-culture of NIKS^GFP and primary keratinocytes plated in equal proportions. Arrows indicate junction between individual NIKS^GFP and primary keratinocytes. Scale bar: 50 μm. (B) Growth rate of NIKS^GFP and primary keratinocytes plated separately and at specific ratios of 50%:50%, 10%:90%, or 1%:99% (NIKS^GFP : primary keratinocytes). Results are shown as percent of expected value correcting for differences in plating efficiency between the two strains of keratinocytes.