Rabbits were immunized with E-Tag (GAPVPYPDPLEPR) conjugated to KLH. Antibody was isolated by affinity chromatography using the peptide immobilized on solid support. Antibody concentration was determined by extinction coefficient: absorbance at 280 nm of 1.4 equals 1.0 mg of IgG.
2 - 8°C
Detection of E-Tag-tagged Protein by western blot. Samples: 200, 100, or 50 ng of E. coli whole cell lysate expressing a multi-tag fusion protein. Antibodies: Affinity purified, rabbit anti-E-Tag antibody A190-133A used for WB at 0.04 µg/ml (1:25,000). Detection: Chemiluminescence with an exposure time of 3 seconds.