Comparison

DSIP vs Exenatide

Function

While DSIP was originally described for inducing spindle and delta sleep activity when infused into the brain of rabbits; later studies report stress-modulating and endocrine effects, though its physiological role is still debated47, Exenatide is used for type 2 diabetes treatment to improve glycemic control and modestly reduce body weight through GLP-1–like insulinotropic and glucagonostatic effects6768.

Mechanism

While DSIP works as an endogenous nonapeptide, Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, with proposed neuromodulatory actions; it interacts with components of the MAPK cascade and may be related to glucocorticoid-induced leucine zipper (GILZ), but its precise biosynthetic origin remains unknown4757, Exenatide is a 39-amino-acid exendin-4 peptide originally isolated from Gila monster venom that acts as a long-acting GLP-1 receptor agonist resistant to DPP-4 degradation67.

Length and Sequence

DSIP is 9 amino acids long, whereas Exenatide is longer as it has a length of 39 amino acids. DSIP is made up of a sequence of Tryptophan, Alanine, Glycine, Glycine, Aspartic acid, Alanine, Serine, Glycine, Glutamic acid. Exenatide is made up of a sequence of sequence data not available in the current dataset.

Receptor

DSIP

Not clearly established in the current dataset.

Exenatide

GLP-1 receptor (GLP1R) 6780

Organism or Origin

DSIP

Endogenous vertebrate neuropeptide; its encoding gene has not been identified47

Exenatide

Originally from Heloderma suspectum (Gila monster) venom; now produced synthetically67

Gene

DSIP

Not assigned in the current dataset.

Exenatide

Not assigned in the current dataset.

Sources

47DSIP (Delta sleep-inducing peptide), https://particlepeptides.com/en/content/12-dsip
67Exendin 4 – Potent GLP-1R agonist - SB PEPTIDE, https://www.sb-peptide.com/project/exendin-4-potent-glp-1r-agonist/
68Glucagon-like peptide-1 analogues: An overview - PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC3712370/
80GLP-1 Localisation and Proglucagon Gene Expression in ..., https://pmc.ncbi.nlm.nih.gov/articles/PMC6200298/