Fig. 4.
CaSR immunostaining in CCK-GFP cells. Sections of small intestine from CCK-GFP mice expressing endogenous GFP (left) or stained with antisera against CaSR (center). A merged overlay of these images showing colocalization of CaSR in CCK-GFP cells is shown on the right. Images were obtained at ×40 magnification. Scale bar = 5 μm.