HTRF kinase assay allows high concentrations of ATP, making possible...
MAb PT66-Eu cryptate
- High affinity
PT66-Eu cryptate is a labeled mouse monoclonal IgG1. It shows to react specifically with phosphorylated tyrosine, both as free amino acid or when conjugated to carriers. No cross-reactivity has been observed with non-phosphorylated tyrosine, phosphothreonine, phosphoserine, AMP or ATP. This allows the construction of a highly specific biochemical Tyrosine kinase assay. Any kind of substrate can be used, from small synthetic peptides to natural substrates, meaning high assay detection versatility. HTRF allows to perform assay at physiological ATP concentrations.
- NO LIMITATION IN ATP CONCENTRATIONS
- ANY KIND OF SUBSTRATES
- PHOSHO-(TYR) SPECIFIC
ATP concentration is an important factor for in vitro kinase assay design, as the sensitivity of ATP competitive inhibitors varies with ATP concentration. As shown in Figure 5, HTRF tolerates the extremely high ATP concentrations (up to mM range) needed for mechanistic studies, e.g. the confirmation of ATP competitive inhibitors. The shift observed for increasing ATP concentrations in the graph confirms the ATP-competitive effect of the compound tested. Assay was performed on a tyrosine kinase revealed by PT66.
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