Exendin-4
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Primary Accession | P26349 |
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Species | Gila monster |
Sequence | His48-Ser86 |
Purity | > 96% as analyzed by SDS-PAGE > 96% as analyzed by HPLC |
Endotoxin Level | < 0.2 EU/ µg of protein by LAL method |
Expression System | E. coli |
Theoretical Molecular Weight | 4.2 kDa |
Formulation | Lyophilized from a 0.2 µm filtered solution in PBS, pH 7.4. |
Reconstitution | It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml. |
Storage & Stability | Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles. |
Other Names | Exendin-4, Exenatide, EXE4 |
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Target Background | Exendin-4 is a novel 39-amino acid peptide isolated from the venom of the Gila monster Heloderma suspectum. It shares 53% sequence homology with GLP-17-36amide and interacts with the same membrane receptor. Exendin-4 enhances glucose-dependent insulin secretion, suppresses inappropriately elevated glucagon secretion, and slows gastric emptying in vivo. It also promotes ß-cell proliferation and neogenesis in vitro and in animal models. |
Name | EXE4 |
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Function | Venom protein that mimics the incretin hormone glucagon-like peptide 1 (GLP-1). It stimulates insulin synthesis and secretion, protects against beta-cell apoptosis in response to different insults, and promotes beta-cell proliferation. It also promotes satiety, reduces food intake, reduces fat deposition, reduces body weight and inhibits gastric emptying. Interacts with GLP-1 receptor (GLP1R). Induces hypotension that is mediated by relaxation of cardiac smooth muscle. |
Cellular Location | Secreted. |
Tissue Location | Expressed by the venom gland. |

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