Comparison

Exenatide vs Snap-8

Function

While 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, Snap-8 is a cosmetic peptide studied for reducing wrinkle depth by inhibiting synaptic vesicle fusion and subsequent muscle contraction in facial expression muscles5060.

Mechanism

While Exenatide works as 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, Snap-8 is acetyl octapeptide-3 (Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2), an extended analog of Argireline derived from the N-terminal region of SNAP-25 that competes with native SNAP-25 for binding to syntaxin-1, forming a non-functional SNARE complex and reducing neurotransmitter release5060.

Length and Sequence

Exenatide is 39 amino acids long, whereas Snap-8 is shorter as it has a length of 8 amino acids. Exenatide is made up of a sequence of sequence data not available in the current dataset. Snap-8 is made up of a sequence of Glutamic acid, Glutamic acid, Methionine, Glutamine, Arginine, Arginine, Alanine, Aspartic acid.

Receptor

Exenatide

GLP-1 receptor (GLP1R) 6780

Snap-8

Targets the SNARE complex (SNAP-25–syntaxin interaction) rather than a cell-surface receptor5060

Organism or Origin

Exenatide

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

Snap-8

Fully synthetic SNAP-25–derived peptide used in topical anti-wrinkle products5060

Gene

Exenatide

Not assigned in the current dataset.

Snap-8

Not assigned in the current dataset.

Sources

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/
50SNAP-8 (Acetyl Octapeptide-3) Peptide Overview - Kimera Chems, https://kimerachems.co/product/snap-8-acetyl-octapeptide-3/
60SNAP-8 (Acetyl Octapeptide-3): The Topical Anti-Wrinkle | FormBlends, https://formblends.com/research/specialty/snap8-anti-aging-peptide