Fig. 1. Micrographs of primary cultures of day-14 corneal epithelial cells. (A) A low power phase-contrast micrograph of a portion of an epithelial sheet. (B) A fluorescence micrograph showing epithelial cells reacted with anti-chicken ferritin antibody 6D11. (C and D) The same cells transfected with a myc-tagged, full-length ferritin construct visualized by (C) Hoffman interference and (D) immunofluorescence with an anti-myc antibody, 9E10. The arrow in (B) points to a nucleolus. The asterisks in (C) and (D) demarcate the same two nuclei. Bar, 25 µm (A); Bar, 10 µm (B-D).