Peptide Sequence

HSDGTFTSEYSRLQDSARLQRLLQGLV

His-Ser-Asp-Gly-Thr-Phe-Thr-Ser-Glu-Tyr-Ser-Arg-Leu-Gln-Asp-Ser-Ala-Arg-Leu-Gln-Arg-Leu-Leu-Gln-Gly-Leu-Val

Chemical Modification

The leucine residue at position 6 of the natural sequence of rat secretin is replaced by tyrosine.