Microtubule-Associated Protein (MAP2)
Antibody Concentrations: 200 µg/ml. Two different affinity-purified anti-peptide antibodies were combined to make this product. The concentrations of both antibodies was 100 µg/ml (based on Bradford assay readings using bovine serum albumin as a standard).
Volume: Regular vials contain 1000 µl of this antibody mixture; Sampler vials contain 200 µl of this mixture.
Buffer: Phosphate-buffered (10 mM) isotonic (0.9%, w/v) saline (PBS, pH 7.2) with sodium azide (0.02%, w/v) added as a preservative.
Quality Control: Both of the antibodies were analyzed by immunohistochemistry (at a dilution of 1:2000) using fluorescein-labeled goat anti-chicken IgY (1:500 dilution, Aves Labs Cat.# F-1005) as the secondary reagent.
Recommended Dilutions: 1:1000-1:2000 for immunohistochemistry and immunocytochemistry using 2% paraformaldehyde-fixed tissues or cells. 1:2000-1:5000 for western blots. Note that these dilutions are meant to serve as starting points, and that optimal dilutions may vary.
Chickens were immunized with two synthetic peptide / keyhole limpet hemocyanin (KLH) conjugates. These synthetic peptides corresponded to different regions of the MAP-2 gene product, but are shared between the human (NP_002365, NCBI) and mouse (P20357, NCBI) sequences. After repeated injections into the hens, immune eggs were collected, and the IgY fractions were purified from the yolks. These IgY fractions were then affinity-purified using a peptide column, and the concentrations of the eluates adjusted to 200 µg/ml. Finally, equal volumes of both of the affinity-purified anti-peptide antibodies were mixed, and the preparation was filter-sterilized.