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Assay Method Information |
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| | LanthaScreen Assay |
| Description: | a) 400 nl of a 1:2.15 serial dilution of test compound (98 μM top assay concentration) is spotted via Labcyte Echo to certain wells in a 384 well black, untreated plate. Control wells contain 400 nl of either DMSO or 400 nl of a known inhibitor in DMSO. b) 10 μl of a 2.5 nM LRRK2(G2019S mutation, GST-LRRK2 (amino acids 970-2527)) enzyme solution in 1× assay buffer (50 mM Tris pH 8.5, 10 mM MgCl2, 0.01% Brij-35, 1mM EGTA, 2 mM DTT, 0.05 mM NaVO4) is added to all wells. c) A 30 minute room temperature incubation is followed by addition of 10 μl of 800 nM fluorescein labeled LRRKtide peptide substrate and 186 μM ATP solution in 1× assay buffer to all wells. d) After a 60 minute room temperature incubation, 20 μl of TR-FRET Dilution Buffer (Invitrogen PV3756B) containing 4 nM Tb-labeled anti-phospho LRRKtide antibody and 20 mM EDTA is added to all wells. e) Plates are incubated at room temperature for 1 hour and read on an Envision multi-mode plate reader with LanthaScreen settings. Results are analysed using Assay Data Analyzer. |
| Affinity data for this assay | |
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