名称：重组Exendin-4 

Synonyms：Exenatide

Accession：P26349

Source：Escherichia coli.

Molecular Weight：Approximately 4.2 kDa, a single non-glycosylated polypeptide chain containing 39 amino acids.

Quantity：20μg/100μg/1000μg

AA Sequence：HGEGTFTSDL SKQMEEEAVR LFIEWLKNGG PSSGAPPPS

Purity：> 96 % by SDS-PAGE and HPLC analyses.

Biological Activity：1. Regulates Glucose levels rapidly;
2. Reduces Insulin resistance;
3. Reduces Glucagon;
4. Reduces HbA1c;
5. Stimulates beta cell growth which stimulates insulin production.

Physical Appearance：Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation：Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.

Endotoxin：Less than 10 EU/mg of rExendin-4 as determined by LAL method.

Reconstitution：We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Stability & Storage：Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 3 months, -20 to -70 °C under sterile conditions after reconstitution.

SDS-PAGE：