comparisons of the nucleotide sequence of the rat pre-proglucagon cdna with those of the two pre-proglucagons of the anglerfish pancreas encoded by two separate genes indicate that the pre-proglucagon genes probably evolved by intragenic duplications of a dna segment corresponding to the coding sequences of glucagon and the glucagon-like peptides .
C0072092
proglucagon
C0017687
glucagon