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| Compound class: 
                                                            Endogenous peptide in human, mouse or rat
                                 
                                    Species: Human
                                   View more information in the IUPHAR Pharmacology Education Project: cck-58 | 
| Post-translational Modification | |
| The C-terminal phenylalanine is amidated and the tyrosine residue at position 52 is sulfated, as indicated by Tys which represents Tyr(SO3H). | |