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Binding model of the interaction between the chimaeric peptide GLP-1/Glu and chimeric receptor A. The GLP-1 N-terminus of GLP-1/Glu (dark grey) interacts with the GLP-1 receptor core domain of chimera A (black). The glucagon C-terminus (bright grey) interacts with the glucagon receptor N-terminal extracellular domain of chimera A (bright grey).
