| Assay Method Information | |
| | LATS1 Biochemical Assay: Homogenous Time Resolved Fluorescence (HTRF) Assay |
| Description: | The LATS1 biochemical HTRF assay was performed using the HTRF KinEASE-STK S1 kit (CisBio, catalogue number 62ST1PEC) according to manufacturer's instructions. Human LATS1 kinase domain protein was purchased from Carnabio (catalogue number 01-123), which harbors the catalytic domain of amino acids 589-1130, and was co-purified with human His-tagged MOBKL1A (NP_775-739). Compounds were added by ECHO liquid handler (Labcyte) into 384-well plates. Then 5 microlitre of the following solution was added into the wells (50 mM HEPES, 0.01% BSA, 100 nM Orthaovanadate, 1 mM MgCl2, 1 mM DTT, 0.6 ng/microlitre LATS1 enzyme (Carnabio, 01-123), 2 micromolar STK1 localising aid (CisBio)), followed with 5 microlitre of 2 mM ATP in the kinase buffer (50 mM HEPES, 0.01% BSA, 100 nM Orthaovanadate, 1 mM MgCl2, 1 mM DTT) and incubated for 30 minutes at room temperature. 10 microlitre of detection mix (50 mM HEPES, 0.01% BSA, 100 nM Orthaovanadate, 1 mM MgCl2, 1 mM DTT, STK Antibody-Cryptate (CisBio), Streptavidin-XL665 (CisBio), 500 micromolar potassium fluoride, 50 nM EDTA) was added to each well and incubated for 1 hour at room temperature. Plates were read on Pherastar (BMG Labtech) for HTRF (665 nm/620 nm). The IC50 is measured when the effect of the compound reduces the HTRF signal by 50%. |
| Affinity data for this assay | |
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