Exendin-4 Heavy
HGEGTFTSD-[U-13C6,15N-Leu]-SKQMEEEAVR-[U-13C6,15N-Leu]-FIEW-[U-13C6,15N-Leu]-KNGGPSSGAPPPS-amide
Description
Application Data
Description
-
Exendin-4 is an incretin mimetic that stimulates insulin secretion, an analogue of GLP-1 but resistant to cleavage by plasma DPP-IV.
Application Data
-
Catalogue number crb1301695 Molecular Weight 4205.1 Sequence (one letter code) HGEGTFTSD-[U-13C6,15N-Leu]-SKQMEEEAVR-[U-13C6,15N-Leu]-FIEW-[U-13C6,15N-Leu]-KNGGPSSGAPPPS-amide
Sequence (three letter code) H-His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Asp-[U-13C6,15N-Leu]-Ser-Lys-Gln-Met-Glu-Glu-Glu-Ala-Val-Arg-[U-13C6,15N-Leu]-Phe-Ile-Glu-Trp-[U-13C6,15N-Leu]-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-NH₂
Purity >95% Storage -20°C Manufactured in: United Kingdom Originally identified in Gila monster lizard (Heloderma suspectum), exendin-4 is an incretin mimetic, an analog of glucagon-like-peptide-1 (GLP-1), it stimulates insulin secretion and modulates gastric emptying to slow the entry of ingested sugars into the bloodstream. Exendin-4 is resistant to cleavage by plasma DPP-IV unlike GLP-1. This gives it a longer half-life and duration of action than GLP-1, as well as greater potency in vivo. Exendin-4 increases insulin sensitivity and improves glucose tolerance and is currently used for the treatment of Type 2 diabetes mellitus in its synthetic form Exenatide.
Exendin-4 also promotes the production and proliferation of β-cells leading to regeneration of the pancreas. It is a ligand to the exendin receptor and increases pancreatic acinni cAMP levels. However, the GLP-1 analog was found to have a toxic effect by inducing hypotension due to relaxation of the cardiac smooth muscle.
The leucine residues at positions 10, 21, and 26 of this peptide are isotopically labelled with carbon-13 and nitrogen-15, giving this peptide a mass increase of 18.5 compared to the unlabelled peptide