Secretin, a 27-amino acid gastrointestinal peptide hormone, has been implicated in numerous regulatory events involving the pancreas, biliary tree, stomach, nerves and kidney. It is relatively conserved through evolution. Rat secretin differs from its porcine counterpart by a single glutamine-for-arginine substitution at position 14.
Ref: Kopin, A. et al. Proc. Natl. Acad. Sci. USA 87, 2299 (1990).
Molecular Weight
3028.7
Sequence (One-Letter Code)
HSDGTFTSELSRLQDSARLQRLLQGLV-NH2
Sequence (Three-Letter Code)
H - His - Ser - Asp - Gly - Thr - Phe - Thr - Ser - Glu - Leu - Ser - Arg - Leu - Gln - Asp - Ser - Ala - Arg - Leu - Gln - Arg - Leu - Leu - Gln - Gly - Leu - Val - NH2