Promega's SignaTECT™ Protein Kinase Assay Systems combine the use of biotinylated target peptide substrates with a unique Streptavidin Matrix Membrane to specifically and accurately quantitate the activity of protein kinases in a variety of samples. This technique provides low backgrounds and high signal-to-noise ratios even with complex samples such as crude cell extracts, while retaining the high capacity necessary to maintain optimum reaction kinetics.
Promega Notes 58, 22.
Said Goueli, Erik Schaefer and Allan Tereba