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Assay Method Information

Assay Name:  Biochemical Assay
Description:  The biochemical assay is in a AlphaScreen format. The kinase reaction is based on the IRAK-4 phosphorylation of a biotin labeled peptide. The phosphopeptide is incubated with anti-phosphothreonine antibody as well as streptavidin- and protein A-coated beads. Binding of the protein-A coated beads to the antibody and the streptavidin beads to the peptide, leads to an energy transfer from one bead to the other, ultimately producing a luminescent/fluorescent signal.Generally, the kinase reaction is carried out at 1 nM IRAK4, 1.6 μM peptide, 10 μM ATP in reaction buffer 50 mM Hepes, 60 mM NaCl, 5 mM MgCl2, 0.25 mM MnCl2, 2 mM DTT, 0.01% BSA, 0.01% Tween-20) for 3.5 h at RT.
Affinity data for this assay
 

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Last update November 1, 2007
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