Delta-sleep-inducing peptide (DSIP) is a neuropeptide, and its chemical structure is composed of a sequence of amino acids. The sequence of DSIP is as follows:
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
This sequence represents the specific arrangement of amino acids in the DSIP peptide. The chemical structure includes these amino acids linked together in a particular order, and this sequence is responsible for the biological activity and function of DSIP in the body.