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Anti-Exendin-4 ABS 012-35

品牌：

貨號(hào)：ABS 012-35

規(guī)格：200 μg

貨期：

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Anti-Exendin-4

商品詳情參考文獻(xiàn) 相關(guān)資料

Cat. No.: ABS 012-35
Product name: Anti-Exendin-4
Description: Mouse monoclonal antibody
Specificity: Specific for exendin-4. No cross-reactivity with GLP-1, GLP-2 (human) or glucagon coated on ELISA wells.
Immunogen: Synthetic exendin-4?
Application: ELISA
Species reactivity (positive): Human
Species reactivity (negative): Not determined
Subclass: IgG1/k
Gene ID: 2740
Clone number: 35
Epitope: The epitope is in the 9-39 region of the peptide, and the antibody cross-reacts strongly with exendin (9-39)amide.
Content: Available in 200 μL and 1 mL size.1 mg/mL +/- 15%. See Certificate of Analysis for details.
Purification: Protein-A purified
Form: Liquid
Solvent: 0.01 M phosphate buffer, pH 7.4, containing 0.5 M NaCl and 15 mM sodium azide
Storage: 4-8oC without exposure to light. No precautions necessary during handling.
Target: Exendin-4 is a 39 amino acid peptide found in venom from the Gila monster Heloderma suspectum. It is a member of the glucagon-secretin family of peptide hormones and neuropeptides. Exendin-4 is a potent agonist of the GLP-1 receptor and hence a potent stimulator of insulin secretion.

Application 1: ELISA

ABS 012-35 binds to exendin-4 when coated on ELISA wells and reacts specifically with exendin-4 in solution giving a Ka of 1.1x10E9 in an inhibition ELISA. The binding between ABS 012-35 and exendin-4 is disrupted by 4.5 M MgCl2.

ABS 012-35 (as biotinylated detection antibody) forms a sandwich ELISA pair with ABS 033-10 (as capture antibody) for measuring exendin-4, giving a detection limit of as little as 40 pmol/L in an unoptimized buffer assay (1).

By using the above monoclonal antibodies, it is possible to measure intact exendin-4 by a sandwich ELISA which is not subject to interference from GLP-1 or other glucagon-related peptides that may be present. ABS 033-10 is used as capture antibody in combination with a biotinylated detection antibody from the ABS 012 series. The best sensitivity in an unoptimized buffer assay was obtained with biotinylated ABS 012-35 as the detection antibody.

1. Murphy RE, Kinhikar AG, Shields MJ, Rosario JD, Preston R, Levin N, Ward GH (2010) Combined use of immunoassay and two-dimensional liquid chromatography mass spectrometry for the detection and identification of metabolites from biotherapeutic pharmacokinetic samples. Journal of Pharmaceutical and Biomedical Analysis 53:221-227.: 20547023

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