The UPSTATE® colorimetric STAR (Signal Transduction Assay Reaction) ELISA kit is a solid phase sandwich enzyme linked immunosorbent assay that provides a fast, sensitive method to detect specific levels of signaling targets in whole cell extracts. The FAK plate is coated with a specific mouse monoclonal FAK capture antibody. Sample lysate or the standard included in the kit are incubated in the microwells allowing FAK antigen to be captured. The plate is then washed to remove any un-bound non-specific material. A specific rabbit anti-FAK antibody is added to detect the captured FAK on the plate. The unbound detection antibody is washed away followed by incubation with an HRP-conjugated anti-rabbit antibody. After the addition of TMB substrate and stop solution the absorbance is measured at 450 nm using a plate reader. This allows for a sensitive enzymatic detection of the sample. The entire assay takes less than 5 hours to complete with minimal hands-on time. Many of the reagents are supplied in ready-to use formulations for ease of use. The kit also includes a standard that is run as both a positive control and to generate a standard curve for FAK measurement.
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