Skip to main content
. 1997 Apr 1;94(7):3223–3228. doi: 10.1073/pnas.94.7.3223

Figure 2.

Figure 2

Figure 2

IGF-1 receptor, but not insulin receptor, is expressed in rat pancreatic islets. (A) Western blot detection of IGF-1 receptor α-subunit expression in rat pancreatic islets (lane I). Although insulin receptor is strongly expressed in rat liver (lane L), no detectable level of expression was seen in pancreatic islets. The solid arrows indicate either the IGF-1 or insulin receptor α subunits. Both antibodies are directed against the N-terminal 20 amino acids of the corresponding receptor α subunits. (B) Confocal image of a rat pancreatic islet. (×20.) The primary antibody is anti-IGF-1 receptor α subunit. The staining indicates that IGF-1 receptor is expressed in the pancreatic β cells.