| abstract |
A novel method for producing glucagon is provided. The method comprises the steps of, preparing a fusion protein shown by the following formula: X-Glu-Glucagon (I) wherein X is a leader sequence of 70-170 amino acids, Glu is a glutamic acid residue, and Glucagon represents the amino acid sequence of glucagon, and treating the fusion protein with an enzyme that specifically hydrolyzes the peptide bonds at the carboxyl termini of the glutamic acid residues, resulting in cleavage of the fusion protein. |