Fig. 5From: The Role of Salt Bridge Formation in Glucagon: An Experimental and Theoretical Study of Glucagon Analogs and Peptide Fragments of Glucagon(A) A cyclic conformation of Glu-Asp-Phe-Val-Lys that features a hydrogen bond between the glutamic and lysine residues. (B) An extended conformation of Glu-Asp-Phe-Val-Lys.Back to article page