| Assay Method Information | |
| | RIPK2 Inhibition Assay |
| Description: | RIPK2 activity was measured using an indirect ELISA detection system. His RIPK2 (0.6 nM) was incubated in the presence of 6 μM ATP (Sigma cat # A7699), 20 mM Hepes, pH 7.5, 1 mM EGTA, 2.5 mM MgCl2, 2.5 mM MnCl2 and 0.01% Triton X-100 in a 96 well microtitre plate pre-coated with amino terminal 6 histidine, sumo tagged TTK (amino acid residues 1-275). The reaction was allowed to proceed for 30 minutes, followed by 5 washes of the plate with Wash Buffer (phosphate buffered saline supplemented with 0.2% Tween 20), and incubation for 30 minutes with a 1:3000 dilution of primary antibody (Cell Signaling cat #9381). The plate was washed 5 times with Wash Buffer, incubated for 30 minutes in the presence of secondary antibody coupled to horse radish peroxidase (BioRad cat #1721019, 1:3000 concentration), washed an additional 5 times with Wash Buffer, and incubated in the presence of TMB substrate (Sigma cat # T0440). The colorimetric reaction was allowed to continue for 5 minutes, followed by addition of stop solution (0.5 N H2SO4), and quantified by detection at 450 nm with either a monoChromatic or filter based plate reader (Molecular Devices M5 or Beckman DTX880, respectively). |
| Affinity data for this assay | |
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