Fig. 2. Immunoreactivity of CPXs is detected in insulin-positive cells from mouse islets. Immunohistochemistry for CPXs (a) (1/500 dilution) and for insulin (b) (1/500 dilution) was performed on isolated mouse islets. The overlay of the two images (c) shows that CPXs immunoreactivity is found in insulin-positive islet cells. The images were obtained by confocal microscopy.