| Assay Method Information | |
| | Biochemical Assay |
| Description: | Materials:LRRK2 G2019S enzymeSubstrate (LRRKtide)ATPTR-FRET dilution bufferpLRRKtide antibody384-well assay plateDMSOEnzyme reaction conditions50 mM Tris pH 7.5, 10 mM MgCl2, 1 mM EGTA, 0.01% Brij-35, 2 mM DTT5 nM LRRK2134 μM ATP60 minute reaction time23° C. reaction temperature10 μL total reaction volumeDetection reaction conditions1×TR-FRET dilution buffer10 mM EDTA2 nM antibody23° C. reaction temperature10 μL total reaction volumeCompounds were prepared by initially diluting to 1 mM with DMSO. 35 μL of reference compound solution, 35 μL of test compound solution, and 35 μL HPE were successively added to the source plate (384-well assay plate, Labcyte). The plates were centrifuged at 2500 rpm for 1 minute and sealed in foil. POD was used to perform a 3.162 fold serial dilution and 100 nL of reference compound solution, test compound solution, HPE and ZPE were transferred to assay plates. The assay plate was centrifuged at 2500 rpm for 1 minute, and sealed with foil.To perform the enzyme reaction, 5 μL of LRRKtide substrate and kinase mixture in assay buffer was added to all wells of the assay plate. The plate was centrifuged to concentrate the mixture at the bottom of the wells. The assay plate was incubated at 23° C. for 20 minutes. Following incubation, 5 μL of 2×ATP in assay buffer was added to each well, and plates were centrifuged to concentrate the mixture at the bottom of the wells. The plate was incubated at 23° C. for 60 minutes. |
| Affinity data for this assay | |
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