Clone: MM32-13.1.1 Isotype: IgG1 Amount: 50 µg in 250 µl at 0.2 mg/ml concentration.Product Description: This mouse monoclonal antibody is supplied as a purified IgG1 in 250 µl of 40 mM MOPS buffer (pH 7.5) containing 0.1% BSA, 50% glycerol, 0.1% sodium azide. Immunogen: Synthetic peptide corresponding to aa 35-40 (MVGGVV) of β-amyloid (1-40). Species Reactivity: This antibody will recognize human, mouse, and rat β-amyloid (1-40). Specificity was confirmed using sandwich ELISA and Immunohistochemistry.This antibody does not cross-react with β-amyloid (1-37), β-amyloid (1-38), and β-amyloid (1-42) in sandwich ELISA when used at concentrations up to 50 ng/ml. Application Notes: The following concentration ranges are recommended starting points for this product. Optimal working concentrations for specific applications should be determined by the investigator. Immunohistochemistry: 0.5-1 µg/ml Western Immunoblot: 0.5-1 µg/ml Figure. IHC of brain tissue from APP Tg2576 transgenic mouse probed with mouse anti-β-amyloid (1-40) antibody (Cat# 55921). Paraformaldehyde fixed sections were pretreated with 70% formic acid for 5 minutes followed by steaming for 30 minutes and blocked with normal goat serum (no need for antigen retrieval if fresh or frozen sections are used). Sections were incubated with anti-β-amyloid (1-40) antibody at 0.5 µg/ml overnight. Immunoreactivity was visualized using DAKO Envision HRP System (1:10,000 dilution). This antibody stains cored plaques only (image courtesy of Mayo Clinic Florida).