Immunofluorescence analysis of SMG sections using anti-calnexin (ER marker; grey) and Lys-Asp-Glu-Leu (KDEL; grey) antibodies showed that the ER was well developed in GCT cells and the fluorescence level of them was comparable with that of acinar in p130Casflox/flox mice and was accumulated on the basolateral side of the cell and perinuclear regions (Fig. 7B). Here, CANX is linked to granular cell tumor.