Fig 1.

GATA6 is expressed in all differentiated and proliferating cells in the mature mouse colonic epithelium. (A to C) Immunostaining reveals that GATA6 is expressed in nuclei of surface colonocytes (B) and goblet cells (C) (arrowheads). (D to I) Coimmunofluorescence with GATA6 and CHGA (D to F) or GATA6 and Ki67 (G to I) reveals that GATA6 is also expressed in CHGA-positive enteroendocrine cells and Ki67-positive cells in the proliferative compartment. Arrowheads indicate examples of GATA6-positive cells. Bars: 100 μm.