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Assay Method Information |
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| | KIT Kinase Assay |
| Description: | i. Enzyme The assay has been performed using KIT cytoplasmic domain product and purified in house as GST fused protein. The KIT protein (4.5 microM) was pre activated with 300 microM ATP for 1 hour at 28° C. in order to obtain a linear kinetic.ii. KIT kinase Buffer (KB) Kinase buffer was composed of 50 mM HEPES pH 7.9 containing 5 mM MgCl2, 1 mM MnCl2, 10 mM DTT, 3 microM Na3VO4, and 0.2 mg/mL BSAiii. Assay conditions The KIT kinase assay was run with a final pre activated enzyme concentration of 4 nM, in the presence of 4.4 microM ATP (residual ATP from KIT pre activation step is negligible), 3.9 nM 33P-γ-ATP and 2.5 microM of substrate BioDB n*138 (Aminoacidic sequence: KVVEEINGNNYVYIDPTQLPYDHKWEFPRNR-SEQ ID NO: 2). The peptide was purchased from American Peptide Company (Sunnyvale, Calif.). |
| Affinity data for this assay | |
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