lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): CN1CCN(Cc2cc3c(-c4cc(S(C)(=O)=O)ccc4Oc4ccc(F)cc4F)cn(C)c(=O)c3[nH]2)CC1
InChIKey: QFNIDPJETIJZKG-UHFFFAOYSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: Bromodomain Domain Binding Assay: A time-resolved fluorescence resonance energy transfer (TR-FRET) assay was used to determine the affinities of compounds of the Examples listed in Table 1 for each bromodomain of human BRD4. His-tagged first (BD1: amino acids K57-E168) and second (BD2: amino acids E352-E168) bromodomains of human BRD4 were expressed and purified. An Alexa647-labeled BET-inhibitor was used as the fluorescent probe in the assay. Compound dilution series were prepared in DMSO via a 3-fold serial dilution from 2.5 mM to 42 nM. Compounds were then diluted 6:100 in assay buffer (20 mM Sodium Phosphate, pH 6.0, 50 mM NaCl, 1 mM Ethylenediaminetetraacetic acid disodium salt dihydrate, 0.01% Triton X-100, 1 mM DL-Dithiothreitol) to yield 3× working solutions. Six microliters (L) of the working solution was then transferred to white, low-volume assay plates (Costar #3673). A 1.5× assay mixture containing His-tagged bromodomain, Europium-conjugated anti-His antibody (Invitrogen PV5596) and the Alexa-647-conjugated probe molecule was also prepared. Twelve L of this solution were added to the assay plate to reach a final volume of 18 L. The final concentration of 1× assay buffer contains 2% DMSO, 50 M-0.85 nM compound, 8 nM His-tagged bromodomain, 1 nM Europium-conjugated anti-His-tag antibody and 100 nM or 30 nM probe (for BDI or BDII, respectively). After a one-hour incubation at room temperature, TR-FRET ratios were determined using an Envision multilabel plate reader (Ex 340, Em 495/520).
Measurement: Ki = 1.8 nM (pChEMBL 8.739999771118164)
Descriptors: MW 542.61, ALogP 3.76, HBA 7, HBD 1, PSA 87.64, QED 0.4
Compound (SMILES): Cc1nccc(-c2ccc(C[C@H](NC(=O)[C@@H]3Cc4cc5c(cc4CN3C(=O)C3Cc4ccccc4C3)O[C@@H](c3ccc(OCc4ccc(Cl)c(Cl)c4)cc3)CO5)C(=O)O)cc2)c1C
InChIKey: HYEWAHVWBXLPKI-GAYZTXEMSA-N
Target: Glucagon-like peptide 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P43220
Assay: cAMP Functional Assay: The efficacy of GLP-1 receptor agonists was studied in a cAMP functional assay using HEK-293 Cells expressing the cloned human GLP-1 receptor. GLP-1-expressing cells (10,000-20,000 cells per 0.1 mL) were plated in 96-well plates in Dulbecco's modified eagles media (DMEM) containing 10% fetal bovine serum, 2 mg/mL G418 and penicillin-streptomycin. Following overnight incubation of cells, media was removed, and compounds (at concentrations ranging from 0.0001 to 100 μM) were added to monolayer cells in Iscove's modified dulbecco's medium (IMDM), 100 μM RO 20-1724 PDE inhibitor, 0.1% BSA, 2% DMSO in a final volume of 100 μL, and incubated for 30 min at 37° C. 95%02, 5% CO2 in a humidified incubator. Alternatively, cells were harvested and combined with compounds in suspension using the buffer and protocol described above. cAMP was quantified using a homogenous time-resolved fluorescence detection system (cAMP dynamic, CIS bio International).
Measurement: EC50 = 198 nM (pChEMBL 6.699999809265137)
Descriptors: MW 882.84, ALogP 9.24, HBA 7, HBD 2, PSA 127.29, QED 0.13
Compound (SMILES): COc1cccc(F)c1C1CC(C)C(=O)N1Cc1cccc(-c2nc(Cl)cs2)c1
InChIKey: XLRJGGDGKILWEN-UHFFFAOYSA-N
Target: Orexin/Hypocretin receptor type 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O43613
Assay: In Vitro Assay: Intracellular Calcium Measurements : In Vitro Assay: Intracellular Calcium Measurements:Chinese hamster ovary (CHO) cells expressing the human orexin-1 receptor and the human orexin-2 receptor, respectively, are grown in culture medium (Ham F-12 with L-Glutamine) containing 300 g/ml G418, 100 U/ml penicillin, 100 g/ml streptomycin and 10% heat inactivated fetal calf serum (FCS). The cells are seeded at 20,000 cells/well into 384-well black clear bottom sterile plates (Greiner). The seeded plates are incubated overnight at 37° C. in 5% CO2. Human orexin-A as an agonist is prepared as 1 mM stock solution in MeOH:water (1:1), diluted in HBSS containing 0.1% bovine serum albumin (BSA), NaHCO3: 0.375 g/l and 20 mM HEPES for use in the assay at a final concentration of 3 nM.Antagonists are prepared as 10 mM stock solution in DMSO, then diluted in 384-well plates using DMSO followed by a transfer of the dilutions into in HBSS containing 0.1% bovine serum albumin (BSA), NaHCO3: 0.375 g/l and 20 mM HEPES. On the day of the assay, 50 μl of staining buffer (HBSS containing 1% FCS, 20 mM HEPES, NaHCO3: 0.375 g/l, 5 mM probenecid (Sigma) and 3 M of the fluorescent calcium indicator fluo-4 AM (1 mM stock solution in DMSO, containing 10% pluronic) is added to each well. The 384-well cell-plates are incubated for 50 min at 37° C. in 5% CO2 followed by equilibration at RT for 30 min before measurement.
Measurement: IC50 = 114 nM (pChEMBL 6.940000057220459)
Descriptors: MW 430.93, ALogP 5.72, HBA 4, HBD 0, PSA 42.43, QED 0.52
Compound (SMILES): COCCOc1ccc(-c2nc(-c3cccc4c3CCC4NCCO)no2)cc1C#N
InChIKey: NVIDYKGDESKLSH-UHFFFAOYSA-N
Target: Sphingosine 1-phosphate receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P21453
Assay: Agonist activity at human S1P1 expressed in CRE-bla CHOK1 cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 4 hrs followed by FRET-based beta-lactamase fluorescent substrate addition measured after 2 hrs
Measurement: EC50 > 5 nM (pChEMBL 8.300999641418457)
Descriptors: MW 420.47, ALogP 2.87, HBA 8, HBD 2, PSA 113.43, QED 0.51
Compound (SMILES): Cc1ccc(-n2nccn2)c(C(=O)N2CC[C@H]2c2noc(-c3cccc(Cl)c3C)n2)c1
InChIKey: FLQDYYVTSHSWMA-IBGZPJMESA-N
Target: Orexin/Hypocretin receptor type 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O43613
Assay: Intracellular Calcium Assay: Chinese hamster ovary (CHO) cells expressing the human orexin-1 receptor and the human orexin-2 receptor, respectively, are grown in culture medium (Ham F-12 with L-Glutamine) containing 300 μg/mL G418, 100 U/mL penicillin, 100 μg/mL streptomycin and 10% heat inactivated fetal calf serum (FCS). The cells are seeded at 20,000 cells/well into 384-well black clear bottom sterile plates (Greiner). The seeded plates are incubated overnight at 37° C. in 5% CO2. Human orexin-A as an agonist is prepared as 1 mM stock solution in MeOH:water (1:1), diluted in HBSS containing 0.1% bovine serum albumin (BSA), NaHCO3: 0.375 g/L and 20 mM HEPES for use in the assay at a final concentration of 3 nM. Antagonists are prepared as 10 mM stock solution in DMSO, then diluted in 384-well plates using DMSO followed by a transfer of the dilutions into in HBSS containing 0.1% bovine serum albumin (BSA), NaHCO3: 0.375 g/L and 20 mM HEPES. On the day of the assay, 50 μL of staining buffer (HBSS containing 1% FCS, 20 mM HEPES, NaHCO3: 0.375 g/L, 5 mM probenecid (Sigma) and 3 μM of the fluorescent calcium indicator fluo-4 AM (1 mM stock solution in DMSO, containing 10% pluronic) is added to each well. The 384-well cell-plates are incubated for 50 min at 37° C. in 5% CO2 followed by equilibration at rt for 30 min before measurement. Within the Fluorescent Imaging Plate Reader (FLIPR Tetra, Molecular Devices), antagonists are added to the plate in a volume of 10 μL/well, incubated for 120 min and finally 10 μL/well of agonist is added. Fluorescence is measured for each well at 1 second intervals, and the height of each fluorescence peak is compared to the height of the fluorescence peak induced by 3 nM orexin-A with vehicle in place of antagonist.
Measurement: IC50 = 88 nM (pChEMBL 7.059999942779541)
Descriptors: MW 434.89, ALogP 4.17, HBA 7, HBD 0, PSA 89.94, QED 0.48
Compound (SMILES): O=C(NCC1(O)CCCC1)c1cc(OCC2CC2)c(C2CC2)cn1
InChIKey: URWZDHISFHGIGK-UHFFFAOYSA-N
Target: Cannabinoid receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P34972
Assay: cAMP Assay: CHO cells expressing human CB1 or CB2 receptors are seeded 17-24 hours prior to the experiment 50.000 cells per well in a black 96 well plate with flat clear bottom (Corning Costar #3904) in DMEM (Invitrogen No. 31331), 1×HT supplement, with 10% fetal calf serum and incubated at 5% CO2 and 37° C. in a humidified incubator. The growth medium was exchanged with Krebs Ringer Bicarbonate buffer with 1 mM IBMX and incubated at 30° C. for 30 min. Compounds were added to a final assay volume of 100 μl and incubated for 30 min at 30° C. Using the cAMP-Nano-TRF detection kit the assay (Roche Diagnostics) was stopped by the addition of 50 μl lysis reagent (Tris, NaCl, 1.5% Triton X100, 2.5% NP40, 10% NaN3) and 50 μl detection solutions (20 μM mAb Alexa700-cAMP 1:1, and 48 μM Ruthenium-2-AHA-cAMP) and shaken for 2 h at room temperature. The time-resolved energy transfer is measured by a TRF reader (Evotec Technologies GmbH), equipped with a ND:YAG laser as excitation source. The plate is measured twice with the excitation at 355 nm and at the emission with a delay of 100 ns and a gate of 100 ns, total exposure time 10 s at 730 (bandwidth 30 nm) or 645 nm (bandwidth 75 nm), respectively. The FRET signal is calculated as follows: FRET=T730-Alexa730-P(T645-B645) with P=Ru730-B730/Ru645-B645, where T730 is the test well measured at 730 nM, T645 is the test well measured at 645 nm, B730 and B645 are the buffer controls at 730 nm and 645 nm, respectively. cAMP content is determined from the function of a standard curve spanning from 10 μM to 0.13 nM cAMP.
Measurement: EC50 = 18.1 nM (pChEMBL 7.739999771118164)
Descriptors: MW 330.43, ALogP 2.78, HBA 4, HBD 2, PSA 71.45, QED 0.81
Compound (SMILES): N#Cc1ccc(CSc2ccc(S(N)(=O)=O)s2)cc1
InChIKey: BJXYINRIDWQJFC-UHFFFAOYSA-N
Target: Carbonic anhydrase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P00915
Assay: Inhibition of human recombinant cytosolic carbonic anhydrase 1 preincubated for 10 mins prior to testing by stopped-flow CO2 hydration assay
Measurement: Ki = 2470 nM (pChEMBL 5.610000133514404)
Descriptors: MW 310.43, ALogP 2.56, HBA 5, HBD 1, PSA 83.95, QED 0.88
Compound (SMILES): Cc1cccc(CN(Cc2ccccc2)S(=O)(=O)c2ccc(C(=O)O)cc2)c1
InChIKey: XOHPYZPFPXUVQC-UHFFFAOYSA-N
Target: Taste receptor type 2 member 14 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYV8
Assay: Fluorescence Polarization Assays: In another embodiment, Fluorescence Polarization ("FP") based assays may be used to detect and monitor ligand binding. Fluorescence polarization is a versatile laboratory technique for measuring equilibrium binding, nucleic acid hybridization, and enzymatic activity. Fluorescence polarization assays are homogeneous in that they do not require a separation step such as centrifugation, filtration, chromatography, precipitation, or electrophoresis. These assays are done in real time, directly in solution and do not require an immobilized phase. Polarization values can be measured repeatedly and after the addition of reagents since measuring the polarization is rapid and does not destroy the sample. Generally, this technique can be used to measure polarization values of fluorophores from low picomolar to micromolar levels.
Measurement: IC50 = 2290 nM (pChEMBL 5.639999866485596)
Descriptors: MW 395.48, ALogP 4.08, HBA 3, HBD 1, PSA 74.68, QED 0.65
Compound (SMILES): O=c1cc(NC2CCN(c3ncccn3)CC2)c2cc(C(c3ccc(Cl)cc3)c3ccc(Cl)cc3)ccc2[nH]1
InChIKey: ICHRKUNLOXCBKZ-UHFFFAOYSA-N
Target: Cannabinoid receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P21554
Assay: cAMP Assay: The following mixtures and buffer solutions were prepared: (a) Buffer 1: HBSS (Mediatech Cat#21-023-CV) with 5 mM HEPES (1 mM stock, Gibco BRL Cat#15630-056) and 0.1% BSA (7.5% stock, Invitrogen Cat#15260-037); (b) Buffer 2: 0.5 mM IBMX (200 mM stock in DMSO, Sigma 15879) in Buffer 1; (c) 1 uM cAMP Standard (50 uM stock, Perkin Elmer Cat# AD0262) diluted in Buffer 2 and serially diluted in Buffer 2, 12 doses at 1/2 dilutions resulting in a dose range of 1 uM to 0.5 nM; (d) d2 labelled cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 6 ml dH2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); (e) anti-cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 5 ml dH2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); and (f) Forskolin (Sigma Cat# F6886, 10 mM in DMSO) diluted first in DMSO to 1 mM and then to 1.5 uM in Buffer 2.
Measurement: EC50 = 11 nM (pChEMBL 7.960000038146973)
Descriptors: MW 556.5, ALogP 6.89, HBA 5, HBD 2, PSA 73.91, QED 0.22
Compound (SMILES): C[C@@H]1CN(c2scnc2-c2nc3ccccc3[nH]2)CCN1C(=O)CN1CCc2cccnc21
InChIKey: PASAJVFOFJCKCD-MRXNPFEDSA-N
Target: C-X-C chemokine receptor type 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P49682
Assay: FLIPR Assay: The bioactivity of compounds is tested in a fluorometric imaging plate reader (FLIPR: Molecular Devices) using engineered CHO-K1 cells expressing the human CXCR3A coupled to a G protein (Galpha(16)). Cells are plated the day prior to bioassay in F12 medium supplemented with 10% FBS and G418 and hygromycin antibiotics to maintain recombinant selection. At the day of bioassay, cells are washed and dye loaded for one hour with Fluo-4-AM (Invitrogen) in Hanks Balanced Salt Solution (Invitrogen), buffered with 20 mM Hepes at pH 7.4 and sodium bicarbonate (0.015%), containing 5 mM probenecid. This buffer, but lacking the dye and containing probenecid at a concentration of 2.5 nM, is also is used for washing steps (wash buffer); or lacking both dye and probenecid but supplemented with 0.1% BSA for compound dilution steps (dilution buffer). Cells are washed free of excess dye and 60 microliter of wash buffer is added. Stock solutions of test compounds are made up at a concentration of 10 mM in DMSO, and serially diluted in dilution buffer to concentrations required for inhibition dose response curves. After a 10 minute incubation period at 37° C., 10 microliters of each compound dilution are transferred from a compound plate to the plate containing the recombinant cells in the FLIPR instrument according to the manufacturer's instructions. Following basal readings, 10 microliter CXCL10 agonist at a concentration of 20 nM (from Peprotech) is added, again using the FLIPR instrument. Changes in fluorescence are monitored before and after addition of the test compounds.
Measurement: IC50 = 2 nM (pChEMBL 8.699999809265137)
Descriptors: MW 459.58, ALogP 3.18, HBA 7, HBD 1, PSA 81.25, QED 0.5
Compound (SMILES): NCC[C@@H]1N[C@H](CNC(=O)c2ccc3ccccc3c2)CCN(Cc2cc(Cl)cc(Cl)c2)C1=O
InChIKey: QHOCHQYTGSIOPC-ZEQRLZLVSA-N
Target: Melanocortin receptor 5 (SINGLE PROTEIN), Homo sapiens
UniProt: P33032
Assay: Radioligand Binding Assay: Assessments of compound binding to human MC5R (hMC5R)) by displacement of an 125I-labeled NDP-MSH receptor ligand peptide were performed essentially as described in the data sheets produced by Perkin Elmer to accompany their frozen hMC5R membranes (Perkin Elmer catalog number RBXMC5M400UA). [125I] NDP-MSH: Radiolabeled in House and Purified by HPLC: Na125I (0.5 mCi, 17.4 Ci/mg) was added to 50 μL sodium phosphate (50 mM, pH 7.4) in an eppendorf tube precoated with IODOGEN. After incubation for 10 mins the phosphate buffer containing the iodine was added to NDP-MSH (10 μl at 1 mg/mL) in a separate eppendorf tube. This was incubated for a further 10 mins. The iodinated NDP-MSH was purified by HPLC on a Zorbax SB 300 column using solvent A: 0.05% TFA and solvent B: 90% acetonitrile 0.045% TFA with a linear gradient, 0-67% B over 60 mins. The 125I NDP-MSH eluted at 52 mins after the unlabeled starting material (48 min) and was counted and stored in the freezer. It was used within 48 hrs, as radioactive decay and ligand decomposition resulted in greatly reduced specific binding observed after 72 hrs. Incubation buffer: 25 mM HEPES-KOH (pH 7.0), 1.5 mM CaCl2, 1 mM MgSO4, 0.1 M NaCl, 1 mM 1,10-phenanthroline, and 1 Complete™ protease inhibitor tablet/100 mL (Roche, catalog number 1873580). Perkin Elmer frozen hMC5 membranes: catalog number RBXMC5M400UA, 0.4 mL/vial; 400 microassays/vial, 0.78 mg/mL protein concentration. Vials of frozen membranes were thawed rapidly immediately before use, diluted with binding buffer and vortexed. Resuspended membranes were kept on ice until they were added to the wells of the plate. Assays were performed in 96 well polypropylene plates. Membranes (0.78 μg 40 μL of a 1:40 dilution in incubation buffer) were added to [125I] NDP-MSH (0.84 nM; 2200 Ci/mmol) and test compounds in a total volume of 140 μL. This was incubated for 1 hr at 37° C. Non-specific binding was determined with 3 mM NDP-MSH. Plates were filtered using a Tomtec cell harvester with GF/A filters (Wallac) (presoaked in 0.6% polyethylenimine) and washed three times with 1.0 mL ice-cold wash buffer (the above incubation buffer without 1,10-phenanthroline and Complete™ protease inhibitor tablet). The filters were dried in a 37° C. oven, placed in a sample bag and 5 mL Betaplatescint (Wallac) was added. Prepared filters were counted in cassettes in a Microbeta Trilux (Wallac) for 1 min.
Measurement: IC50 < 1000 nM (pChEMBL 6)
Descriptors: MW 499.44, ALogP 3.98, HBA 4, HBD 3, PSA 87.46, QED 0.46
Compound (SMILES): O=C(O)CC1CCC(c2ccc(-c3cn4cc(C(=O)NCc5ccc6c(c5)OCO6)nc4s3)cc2)CC1
InChIKey: QBHDWSMJRWUZQL-UHFFFAOYSA-N
Target: Diacylglycerol O-acyltransferase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O75907
Assay: Inhibition Assay: Â Assay buffer [20 mM HEPES (pH 7.4), 100 mM MgCl2 and 0.04% bovine serum albumin (BSA)] containing 500 uM of enzyme substrate (didecanoyl glycerol) and 7.5 uM radiolabeled acyl-CoA substrate ([14C]decanoyl-CoA) was added to each well of a phospholipid-coated radiometric assay plate. A small aliquot of cell lysate having human DGAT1 activity (5 ug/well) obtained in above, of human liver microsomes having human DGAT1 activity (5 ug/well), or of mouse liver microsomes having mouse DGAT1 activity (5 ug/well) was added to the assay plate to start the reaction, and the reaction was allowed to proceed for 60 minutes at 25° C. The reaction was terminated upon the addition of an equal volume (100 uL) of isopropanol. The plates were sealed, incubated overnight and counted the next morning on a liquid scintillation counter and luminometer.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 517.61, ALogP 5.47, HBA 7, HBD 2, PSA 102.16, QED 0.34
Compound (SMILES): CCC(C(=O)N1CCOC(COc2cc3ncnc(Nc4ccc(Cl)c(Cl)c4)c3cc2OC)C1)c1ccccc1
InChIKey: TZKZSFJMVHBLGG-UHFFFAOYSA-N
Target: Ephrin type-B receptor 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P54760
Assay: Inhibition of recombinant human N-terminal His6-tagged EphB4 kinase domain (E605 to E890 residues) expressed in baculovirus using poly-AEKY as substrate after 150 mins in presence of gamma33P-ATP by liquid scintillation spectrometry
Measurement: IC50 = 50 nM (pChEMBL 7.300000190734863)
Descriptors: MW 581.5, ALogP 6.49, HBA 7, HBD 1, PSA 85.81, QED 0.24
Compound (SMILES): CN1CC(C(=O)NCCc2ccc(Cl)c(Cl)c2)=C(O)C1=O
InChIKey: AKLBKRPLDRDFTI-UHFFFAOYSA-N
Target: Endothelial lipase (SINGLE PROTEIN), Homo sapiens
UniProt: Q9Y5X9
Assay: Enzyme Assay: The enzymatic assay was measured using white, opaque 96-well half area plates. Each well contained 60 uL of assay buffer (50 mM HEPES pH 8.0, 50 mM NaCl and 1 mM CaCl2) and 2 ul of a DMSO solution containing compound of interest. Conditioned media obtained from HT-1080 cells, which were transformed by RAGE technology (Athersys) to overexpress endogenous EL, was added and the reaction was allowed to incubate for 20 min at 37° C. with gentle agitation. The reaction was started by the addition of 20 uL of a 1:4 dilution of vesicles. The final total reaction volume was 100 uL. The reaction rates were measured on a Gemini plate reader with an excitation wavelength of 488 nm and a emission of 530 nm. Readings were taken every 20 seconds for 10 min with agitation between each reading.
Measurement: IC50 = 527.8 nM (pChEMBL 6.28000020980835)
Descriptors: MW 329.18, ALogP 1.94, HBA 3, HBD 2, PSA 69.64, QED 0.89
Compound (SMILES): O=c1cc(NC2CCN(c3ccccn3)CC2)c2cc(C(c3ccc(Cl)cc3)c3ccc(Cl)cc3)ccc2[nH]1
InChIKey: BOHMSWRMHSEGLR-UHFFFAOYSA-N
Target: Cannabinoid receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P21554
Assay: cAMP Assay: The following mixtures and buffer solutions were prepared: (a) Buffer 1: HBSS (Mediatech Cat#21-023-CV) with 5 mM HEPES (1 mM stock, Gibco BRL Cat#15630-056) and 0.1% BSA (7.5% stock, Invitrogen Cat#15260-037); (b) Buffer 2: 0.5 mM IBMX (200 mM stock in DMSO, Sigma 15879) in Buffer 1; (c) 1 uM cAMP Standard (50 uM stock, Perkin Elmer Cat# AD0262) diluted in Buffer 2 and serially diluted in Buffer 2, 12 doses at 1/2 dilutions resulting in a dose range of 1 uM to 0.5 nM; (d) d2 labelled cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 6 ml dH2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); (e) anti-cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 5 ml dH2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); and (f) Forskolin (Sigma Cat# F6886, 10 mM in DMSO) diluted first in DMSO to 1 mM and then to 1.5 uM in Buffer 2.
Measurement: EC50 = 6 nM (pChEMBL 8.220000267028809)
Descriptors: MW 555.51, ALogP 7.49, HBA 4, HBD 2, PSA 61.02, QED 0.21
Compound (SMILES): CC(C)S(=O)(=O)c1ccc(NC(=O)N2CC=C(c3ncc(CO)cc3Cl)CC2)cc1C(F)(F)F
InChIKey: YHMVUQDIBKGSIR-UHFFFAOYSA-N
Target: Transient receptor potential cation channel subfamily V member 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q8NER1
Assay: Capsaicin-Based Assay: Two days prior to performing this assay, cells are seeded in poly-D-lysine-coated 96-well clear-bottom black plates (50,000 cells/well) in growth media containing 5 μM PonA (commercially available from Invitrogen) to induce expression of TRPV1. On the day of the assay, the plates are washed with 0.2 mL 1× Hank's Balanced Salt Solution (commercially available from Life Technologies) containing 1 mM CaCl2 and 20 mM HEPES, pH 7.4, and cells are loaded using 0.1 mL of wash buffer containing Fluo-4 (3 μM final). After one hour, the cells are washed twice with 0.2 mL of wash buffer and resuspended in 0.1 mL of wash buffer. The plates are transferred to a FLIPR for assay. 50 μL of test compound diluted with assay buffer (1× Hank's Balanced Salt Solution containing 1 mM CaCl2 and 20 mM HEPES, pH 7.4) are added to the cell plates and incubated for 2 min. The final concentration of the compound is adjusted to range from about 50 picoM to about 3 μM. Human TRPV1 is activated by the addition of 50 μL of capsaicin (400 nM), and the plates are incubated for an additional 3 min.
Measurement: IC50 = 1363.7 nM (pChEMBL 5.869999885559082)
Descriptors: MW 517.96, ALogP 4.75, HBA 5, HBD 2, PSA 99.6, QED 0.6
Compound (SMILES): COC1=C(C(=O)c2ccccc2)C(=O)[C@]2(CC=C(C)C)C[C@@H](C(=O)O)C(C)(C)[C@@]1(CC=C(C)C)C2=O
InChIKey: ORDGTAFUILPMKP-MYFQQKMJSA-N
Target: NAD-dependent protein deacetylase sirtuin-1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q96EB6
Assay: Inhibition of human SIRT1 preincubated with enzyme followed by Fluor de Lys substrate addition by fluorescence-based assay
Measurement: IC50 = 30000 nM (pChEMBL 4.519999980926514)
Descriptors: MW 492.61, ALogP 5.74, HBA 5, HBD 1, PSA 97.74, QED 0.22
Compound (SMILES): Cc1ccc(NC(=O)c2cc(C)n(C(C)(C)C)n2)cc1-n1cc(-c2cncc(N3CCCN(C)CC3)c2)nn1
InChIKey: UJJXAOMDFCWDMI-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase B-raf (SINGLE PROTEIN), Homo sapiens
UniProt: P15056
Assay: B-RAF (V600E) Kinase Assay: In a dilution series 10 uL/well of test substance solution are placed in a multiwell plate. The dilution series is selected so that generally a range of concentrations of 2 uM to 0.119 nM or 0.017 nM is covered. If necessary the initial concentration of 2 uM is changed to 50 uM, 10 uM or 0.4 uM or 0.2857 uM and further dilution is carried out accordingly. The final concentration of DMSO is 5%. 10 uL/well of the B-Raf (V600E)-kinase solution are pipetted in (containing 0.5 ng B-Raf (V600E)-kinase (e.g. from Upstate) in 20 mM Tris-HCl pH 7.5, 0.1 mM EDTA, 0.1 mM EGTA, 0.286 mM sodium orthovanadate, 10% glycerol, 1 mg/mL bovine serum albumin, 1 mM dithiothreitol) and the mixture is incubated for 1 h at RT under with shaking. The kinase reaction is started by the addition of 20 uL/well ATP solution [final concentration: 250 uM ATP, 30 mM Tris-HCl pH 7.5, 0.02% Brij, 0.2 mM sodium orthovanadate, 10 mM magnesium acetate, 0.1 mM EGTA, phosphatase cocktail (Sigma, #P2850, dilution recommended by the manufacturer)] and 10 uL/well MEK1 solution [containing 50 ng biotinylated MEK1 (prepared from purified MEK1 according to standard procedure, e.g. with EZ-Link Sulpho-NHS-LC-Biotin reagent, Pierce, #21335)] and carried out for 60 min at RT with constant shaking. The reaction is stopped by the addition of 12 uL/well of a 100 mM EDTA solution and incubation is continued for a further 5 min. 55 uL/well of the reaction solution are transferred into a streptavidin-coated plate (e.g. Streptawell HighBond, Roche, #11989685001) and shaken gently for 1 h at RT, in order to bind biotinylated MEK1 to the plate. After elimination of the liquid the plate is washed five times with 200 uL/well of 1Ã¿PBS and 100 uL/well solution of primary antibody plus europium-labelled secondary antibody [Anti Phospho-MEK (Ser217/221), Cell Signaling, #9121 and Eu-N1 labelled goat-anti-rabbit antibody, Perkin Elmer, #AD0105] is added, the primary antibody is diluted 1:2000 and the secondary antibody is diluted to 0.4-0.5 ug/mL in Delfia Assay Buffer (Perkin Elmer, #1244-111). After 1 h shaking at RT the solution is poured away and washed five times with 200 uL/well Delfia Wash Buffer (Perkin Elmer, #4010-0010/#1244-114). After the addition of 200 uL/well Enhancement Solution (Perkin Elmer, #4001-0010/#1244-105) the mixture is shaken for 10 min at RT and then measured in a Wallac Victor using the program "Delfia Time Resolved Fluorescence (Europium)". IC50 values are obtained from these dosage-activity curves using a software program (GraphPadPrizm).
Measurement: IC50 = 9 nM (pChEMBL 8.050000190734863)
Descriptors: MW 527.68, ALogP 4.29, HBA 9, HBD 1, PSA 97, QED 0.41
Compound (SMILES): N#Cc1cccc(-c2cnc3nnn(C[C@@H]4CN(c5ncc(C6=CCN(CCO)CC6)cn5)CCO4)c3n2)c1
InChIKey: CUMNZNKNNYXURO-QHCPKHFHSA-N
Target: Hepatocyte growth factor receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P08581
Assay: Lanthanide Fluoro-Immunoassay: The c-Met kinase inhibitory activity was analyzed using dissociation enhanced lanthanide fluoro-immunoassay (DELFIA, Perkin Elmer), which is a kind of time-resolved fluorescence (TRF). 10 mL of the compound prepared in the present invention, as a test compound, was put in a Greiner 96-well V-shaped bottom plate, and a tyrosin kinase buffer (20 mL) mixed with a c-Met enzyme was added thereto, and then the enzyme and the test compound were stirred for 15 minutes, followed by culturing. An ATP solution (10 mL) was added thereto to proceed with a kinase reaction at room temperature for 30 minutes, and then a 50 mM ethylene diamine acetic acid solution (EDTA, 40 mL) was added to stop the reaction. After that, the reaction mixture was transferred to a plate coated with Streptavidin, followed by culturing under shaking. After 2 hours, the cultured material was washed three times with a PBS-T buffer (PBS 0.05% Tween 20). The europium-labeled anti-phosphotyrosine antibody was diluted to 1:2,500, and 100 mL of the diluent was added per well, followed by culturing under shaking. After 1 hour, the cultured material was washed three times with a PBS-T buffer (PBS 0.05% Tween 20). 100 mL of an enhancement solution was added, followed by shaking culturing for 5 minutes, and then the reaction material was read out within a wavelength range of 615/665 nm using a Wallac Envision 2103 device.
Measurement: IC50 = 2 nM (pChEMBL 8.699999809265137)
Descriptors: MW 524.59, ALogP 1.54, HBA 12, HBD 1, PSA 142, QED 0.38
Compound (SMILES): CS(=O)(=O)Nc1ccc2c(c1)-c1c(c(C(N)=O)nn1-c1ccc(S(N)(=O)=O)cc1)CC2
InChIKey: FCAHUITUOHKMRM-UHFFFAOYSA-N
Target: Inhibitor of nuclear factor kappa-B kinase subunit beta (SINGLE PROTEIN), Homo sapiens
UniProt: O14920
Assay: Inhibition of human recombinant C-terminal FLAG-epitope-tagged IKK2 expressed in baculovirus using biotinylated IkappaBalpha peptide as substrate assessed as decrease in [gamma-33P]-ATP incorporation in substrate after 30 mins by scintillation counting method
Measurement: IC50 <= 1000 nM (pChEMBL 6)
Descriptors: MW 461.53, ALogP 0.76, HBA 7, HBD 3, PSA 167.24, QED 0.51
Compound (SMILES): Cc1nc(C)c(-c2cc(C(=O)N3CCC(c4ccn5cncc5c4)CC3)ccc2C)[nH]1
InChIKey: QVRRNFYIHFTSTA-UHFFFAOYSA-N
Target: Fatty acid synthase (SINGLE PROTEIN), Homo sapiens
UniProt: P49327
Assay: Biochemical Assay: The FASN enzyme was isolated from SKBr3 cells. SKBr3 is a human breast cancer cell-line with high levels of FASN expression. It is estimated that FASN comprises about 25% of the cytosolic proteins in this cell line. SKBr3 cells were homogenized in a dounce homogenizer then centrifuged for 15 minutes at 4° C. to remove particulate matter. The supernatant was then analyzed for protein content, diluted to the appropriate concentration, and used to measure FASN activity. The presence of FASN was confirmed by western blot analysis. A similar method for isolation of FASN from SKBr3 cells is described in Teresa, P. et al. (Clin. Cancer Res. 2009; 15(24), 7608-7615). FASN activity of the SKBr3 cell extract was determined by measuring either NADPH oxidation or the amount of thiol-containing coenzyme A (CoA) released during the fatty acid synthase reaction. The dye CPM (7-diethylamino-3-(4'-maleimidyl-phenyl)-4-methylcoumarin) contains a thiol reactive group that increases its fluorescence emission on reaction with the sulfhydryl group of CoA.
Measurement: IC50 = 104 nM (pChEMBL 6.980000019073486)
Descriptors: MW 413.53, ALogP 4.67, HBA 4, HBD 1, PSA 66.29, QED 0.53
Compound (SMILES): Cc1ccccc1CN1C(=O)N(c2cnn(Cc3c(C)noc3C)c2)C(=O)C1(C)C
InChIKey: LYKZUUHTOWCBKK-UHFFFAOYSA-N
Target: Taste receptor type 2 member 8 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYW2
Assay: Fluorescence Polarization Assays: In another embodiment, Fluorescence Polarization ("FP") based assays may be used to detect and monitor ligand binding. Fluorescence polarization is a versatile laboratory technique for measuring equilibrium binding, nucleic acid hybridization, and enzymatic activity. Fluorescence polarization assays are homogeneous in that they do not require a separation step such as centrifugation, filtration, chromatography, precipitation, or electrophoresis. These assays are done in real time, directly in solution and do not require an immobilized phase. Polarization values can be measured repeatedly and after the addition of reagents since measuring the polarization is rapid and does not destroy the sample. Generally, this technique can be used to measure polarization values of fluorophores from low picomolar to micromolar levels.
Measurement: IC50 = 100 nM (pChEMBL 7)
Descriptors: MW 407.47, ALogP 3.59, HBA 6, HBD 0, PSA 84.47, QED 0.6
Compound (SMILES): CCc1nc2cc(C(=O)Nc3cnn(Cc4c(C)noc4C)c3)ccc2o1
InChIKey: RVNTZMHVCUHNJJ-UHFFFAOYSA-N
Target: Taste receptor type 2 member 8 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYW2
Assay: Fluorescence Polarization Assays: In another embodiment, Fluorescence Polarization ("FP") based assays may be used to detect and monitor ligand binding. Fluorescence polarization is a versatile laboratory technique for measuring equilibrium binding, nucleic acid hybridization, and enzymatic activity. Fluorescence polarization assays are homogeneous in that they do not require a separation step such as centrifugation, filtration, chromatography, precipitation, or electrophoresis. These assays are done in real time, directly in solution and do not require an immobilized phase. Polarization values can be measured repeatedly and after the addition of reagents since measuring the polarization is rapid and does not destroy the sample. Generally, this technique can be used to measure polarization values of fluorophores from low picomolar to micromolar levels.
Measurement: IC50 = 800 nM (pChEMBL 6.099999904632568)
Descriptors: MW 365.39, ALogP 3.49, HBA 7, HBD 1, PSA 98.98, QED 0.58
Compound (SMILES): Cc1ccc(-n2nc(-c3ccc(N)cc3)cc2NC(=O)c2cnn3cccnc23)cc1
InChIKey: ABYSRHODGZLWJQ-UHFFFAOYSA-N
Target: Interleukin-1 receptor-associated kinase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NWZ3
Assay: Kinase Assay: The kinase activity of IRAK-4 is determined by its ability to catalyze the phosphorylation of a fluorescent polypeptide substrate. The extent of phosphorylation is measured using the IMAP technology (Molecular Devices) where the phosphorylated fluorescent substrate binds to the large M(III)-based nanoparticles which reduces the rotational speed of the substrate and thus increases its fluorescent polarization (FP). 20 μl reaction mixture contains 10 mM TriHCl, pH 7.2, 0.5 nM GST tagged IRAK-4 (SignalChem), 100 nM fluorescent peptide substrate (RP7030, Molecular Devices), 100 μM ATP, 1 mM DTT, 1 mM MgCl2, and 0.01% Tween 20. The reaction is initiated by the addition of ATP. After incubation for 30 minutes at 25° C., 60 μl of Progressive IMAP Reagent (Molecular Devices) is added to stop the reaction. Change in RP7030's FP is determined by a FP reader (Analyst HT, LH, BioSystems).
Measurement: IC50 < 1000 nM (pChEMBL 6)
Descriptors: MW 409.45, ALogP 3.72, HBA 7, HBD 2, PSA 103.13, QED 0.44
Compound (SMILES): Cc1ccc(-n2nc(C3CCN(S(C)(=O)=O)C3)cc2NC(=O)c2cnn3cccnc23)cc1
InChIKey: VTLDYNVEPJFACW-UHFFFAOYSA-N
Target: Interleukin-1 receptor-associated kinase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NWZ3
Assay: Kinase Assay: The kinase activity of IRAK-4 is determined by its ability to catalyze the phosphorylation of a fluorescent polypeptide substrate. The extent of phosphorylation is measured using the IMAP technology (Molecular Devices) where the phosphorylated fluorescent substrate binds to the large M(III)-based nanoparticles which reduces the rotational speed of the substrate and thus increases its fluorescent polarization (FP). 20 μl reaction mixture contains 10 mM TriHCl, pH 7.2, 0.5 nM GST tagged IRAK-4 (SignalChem), 100 nM fluorescent peptide substrate (RP7030, Molecular Devices), 100 μM ATP, 1 mM DTT, 1 mM MgCl2, and 0.01% Tween 20. The reaction is initiated by the addition of ATP. After incubation for 30 minutes at 25° C., 60 μl of Progressive IMAP Reagent (Molecular Devices) is added to stop the reaction. Change in RP7030's FP is determined by a FP reader (Analyst HT, LH, BioSystems).
Measurement: IC50 < 1000 nM (pChEMBL 6)
Descriptors: MW 465.54, ALogP 2.22, HBA 8, HBD 1, PSA 114.49, QED 0.48
Compound (SMILES): N#Cc1ccc(Oc2ccc3nc(C(=O)NCCN4CCOCC4)ccc3c2)cc1
InChIKey: BUAMXESFMYWDQM-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: FRET-Based Membrane Potential Assay: Two days prior to the experiment, frozen HEK293 cells stably expressing recombinant human Nav1.7 were quickly thawed and plated at 25,000 cells/well in growth medium [DMEM (Invitrogen #11965) with 10% HI FBS (Invitrogen #10082), 2 mM glutamine, 100 units/mL penicillin, 0.1 mg/mL streptomycin (PSG, Sigma #G1146), and 500 ug/mL Geneticin (Invitrogen #10131)] in black-walled, clear-bottom 384-well poly-D-lysine-coated assay plates (Greiner Bio-One, Frickenhausen, Germany) and incubated in a humidified 5% CO2 incubator at 37° C. On the day of the assay, medium was removed by aspiration, and cells were washed with assay buffer [HBSS (Invitrogen, Carlsbad, Calif.) containing 20 mM HEPES (Invitrogen, Carlsbad, Calif.)]. After washing, 30 uL assay buffer containing the fluorescent voltage-sensor probe CC2-DMPE (Invitrogen, Carlsbad, Calif.) at 20 uM and 0.01% pluronic F-127 (Invitrogen, Carlsbad, Calif.) was added to the cells. Cells were incubated for 40 minutes at room temperature in the dark. Following the incubation, the cells were washed and 30 uL assay buffer containing 2.5 uM DiSBAC2(3) substrate (Invitrogen, Carlsbad, Calif.) and 0.5 mM VABSC-1 (Invitrogen, Carlsbad, Calif.) was added to the cells. The cells were incubated for 90 minutes at room temperature in the dark. Fluorescence readings were made using a FLIPR TETRA (Molecular Devices, Sunnyvale Calif.) equipped with voltage-sensor probe optics. At the start of each experiment the optimal (EC80) concentration of depolarizing agent (veratridine) was determined by testing a dilution curve of assay buffer containing veratridine (Sigma-Aldrich, St. Louis, Mo.) and 1 mg/mL scorpion venom (SVqq, from Leiurus quinquestriatus; Sigma-Aldrich, St. Louis, Mo.). Compounds were dissolved in dimethyl sulfoxide, and 8-point, 1:3 dilution concentration-response curves were prepared in duplicate in dimethyl sulfoxide, followed by preparation of 0.8 uL/well daughter plates of the dilutions. Test compounds in the daughter plate were diluted to (Ë¿3x) solutions in assay buffer immediately before assaying. Using the FLIPR TETRA, 20 uL of the (3x) compound solutions were first added to the cells, then 20 uL of depolarizing solution (3xEC80 veratridine+SVqq) were added 3 minutes later to activate the channel. Changes in fluorescence were measured at wavelengths of 440-480 nm and 565-625 nm over the course of the experimental run. Membrane depolarization was expressed as a ratio of the maximum F440-480 nm/F565-625 nm reading above average baseline F440-480 nm/F565-625 nm reading. IC50 values were calculated from curve fits of the ratio data using a four-parameter logistic Hill equation (Accelrys Assay Explorer 3.3 Client, Accelrys, San Diego, Calif.) with percent inhibition plotted against compound concentration.
Measurement: IC50 = 1740 nM (pChEMBL 5.760000228881836)
Descriptors: MW 402.45, ALogP 2.96, HBA 6, HBD 1, PSA 87.48, QED 0.68
Compound (SMILES): Cc1cc(C(F)(F)F)ccc1Nc1nc(N2CCCC2C(C)C)nc2c1CCN(c1ncccc1C(F)(F)F)CC2
InChIKey: UORHUCCJZXVURK-UHFFFAOYSA-N
Target: Transient receptor potential cation channel subfamily V member 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q8NER1
Assay: Functional Assay: HEK293 cells were transfected with human TRPV1 cloned in pcDNA3.1zeo(+) using the Effectene non-liposomal lipid based transfection kit (Qiagen) (hTRPV1/HEK293). hTRPV1/HEK293 cells were routinely grown as monolayers under selection in zeocin (200 μg/mL; Invitrogen) in Dulbecco's Modified Eagle Medium (DMEM, Gibco BRL) supplemented with 10% fetal bovine serum, and penicillin/streptomycin (50 units/mL) in 5% CO2 at 37° C. Cells were passaged frequently, every 3-5 days, to avoid overgrowth, depletion of essential medium components, or acidic medium exposure. Cells were passaged using a brief wash in 0.05% trypsin with 1 mM EDTA, followed by dissociation in divalent-free phosphate-buffered saline (Hyclone #SH30028.02). Dissociated cells were seeded onto poly-D-lysine coated black-walled 96-well plates (Biocoat; Becton Dickinson #354640) at about 40,000 cells per well and grown for approximately 1 day in culture medium to near confluency. The assay buffer was composed of 130 mM NaCl, 2 mM KCl, 2 mM MgCl2, 10 mM HEPES, 5 mM glucose, and either 2 mM or 20 μM CaCl2. On the day of the experiment, the culture medium was replaced with 2 mM calcium assay buffer using an automated plate washer (ELx405; Biotek, VT). The cells were incubated in 100 μL/well Fluo-3/AM (2 μM; TEFLabs #0116) with Pluronic F127 (100 μg/mL; Sigma #P2443) for 1 h at rt in the dark. After loading the cells, the dye solution was replaced with 50 μL/well of 20 μM calcium assay buffer using the ELx405 plate washer. Test compounds (50 μL/well) were added to the plate and incubated for 30 min. Intracellular Ca2+ levels were subsequently assayed using a Fluorometric Imaging Plate Reader (FLIPR™ instrument, Molecular Devices, CA) to simultaneously monitor Fluo-3 fluorescence in all wells (λexcitation=488 nm, λemission=540 nm) during challenge with agonist (capsaicin). The IC50 values were determined. Cells were challenged with 150 nM capsaicin and the fluorescence counts were captured following agonist addition at a sampling rate of 0.33 Hz. The contents of the wells were mixed 3 times (40 μL mix volume) immediately after the additions were made. Concentration dependence of block was determined by exposing each well of cells in duplicate rows of a 96 well plate to a serial dilution of test compound. The concentration series usually started at 10 Î¼M with a three-fold serial decrement in concentration. The magnitude of the capsaicin response was determined by measuring the change in fluo3 fluorescence before and 100 seconds after the addition of the agonist.
Measurement: IC50 = 130 nM (pChEMBL 6.889999866485596)
Descriptors: MW 578.61, ALogP 7.19, HBA 6, HBD 1, PSA 57.18, QED 0.32
Compound (SMILES): COc1cccc(-c2cccc(C(CC(=O)O)c3ncc(C)s3)c2)c1F
InChIKey: INVVDQMSLJAKAR-UHFFFAOYSA-N
Target: Lysosomal protective protein (SINGLE PROTEIN), Homo sapiens
UniProt: P10619
Assay: Inhibition Assay: The activated cathepsin A was diluted in assay buffer (25 mM MES, pH 5.5, containing 5 mM DTT) and mixed with the test compound (dissolved in assay buffer containing (v/v) 3% DMSO) or, in the control experiments, with the vehicle in a multiple assay plate. After incubation for 15 min at room temperature, as substrate then bradykinin carrying an N-terminal® Bodipy FL (4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-propionyl) label (JPT Peptide Technologies GmbH; dissolved in assay buffer) was added to the mixture. The final concentration of cathepsin A was 833 ng/ml and the final concentration of labeled bradykinin 2 μM. After incubation for 15 min at room temperature the reaction was stopped by the addition of stop buffer (130 mM 2-(4-(2-hydroxy-ethyl)-piperazin-1-yl)-ethanesulfonic acid, pH 7.4, containing (v/v) 0.013%° Triton X-100, 0.13% Coating Reagent 3 (Caliper Life Sciences), 6.5% DMSO and 20 μM ebelactone B (Sigma, #E0886)).
Measurement: IC50 = 397 nM (pChEMBL 6.400000095367432)
Descriptors: MW 371.43, ALogP 4.87, HBA 4, HBD 1, PSA 59.42, QED 0.67
Compound (SMILES): Cc1nc2cccc(-c3cc4c([nH]3)CCNC4=O)c2nc1NC(C)(C)CNC(=O)OC(C)(C)C
InChIKey: UMWOBMRFTWBYTM-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase pim-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11309
Assay: Homogeneous Time Resolved Fluorescence Assay (HTRF): The assay for the determination of Pim activity is based on the formation of phosphorylated biotinylated-BAD peptide at the Serine 112 residue (S112) and employs HTRF® (homogeneous time resolved fluorescence) technology to detect the product in a 384-well plate format. The phosphorylation of biotinylated-BAD (S112) peptide by full length recombinant Pim-1, Pim-2, or Pim-3 protein was detected with streptavidin:Allophycocyanin (APC) conjugate and a europium (Eu) labeled antibody directed against phosphorylated-BAD (S112). Excitation of Eu by a high energy laser light (337 nm) leads to a transfer of energy to the APC molecule, and results in an emission at 665 nm. The fluorescence is directly proportional to the amount of phosphorylated BAD peptide present in the reaction. Compounds were prepared in DMSO by conducting 3-fold serial dilutions to give a 22-point dosing curve having a high dose of 1 μM. A reference compound was included on each assay plate [Costar 3658] in order to validate that plate; on one plate of every assay run, two additional reference compounds were included. The Reaction Buffer consisted of 45 mM Hepes, pH 7.0, 15 mM NaCl, and 1 mM MgCl. The quench/detection buffer consisted of 50 mM Tris, 100 mM NaCl, 0.05% BSA, 0.1% Tween and 3 mM EDTA. Biotinylated BAD peptide (Biopeptide), 10 mM ATP (Sigma), Labeled p-BAD (S112) mAb (Cell Signalling and Perkin Elmer) [with 0.05% BSA and 2 mM DTT added] streptavidin:Allophycocyanin [Perkin Elmer]. Final concentrations either Pim-1 enzyme [5 pM], or Pim-2 enzyme [0.5 pM], DMSO [1%], BLC BAD (S112) [0.5 μM], ATP [1.5 μM], streptavidin:Allophycocyanin [0.002 mg/mL] and biotinylated-BAD (S112) mAb [100 pM]. Initial incubations were carried out at RT (22° C.) for 30 min for both Pim-1 and for Pim-2. Pim enzyme is added to compound in buffer, and plates are incubated of 30 min. Biotinylated BAD and ATP are added and plates are incubated for 1 h. A mixture of labeled p-BAD (S112) mAb and quench/detection buffer are added and incubated for 2 h. Fluorescence was measured by an HTRF® Envision microplate reader.
Measurement: IC50 = 50.8 nM (pChEMBL 7.289999961853027)
Descriptors: MW 464.57, ALogP 3.93, HBA 6, HBD 4, PSA 121.03, QED 0.45
Compound (SMILES): CCc1c(N)ncnc1N1CCC(c2nc(-c3ccc(F)cc3)cn2CCN2CC(F)C2)CC1
InChIKey: NZSCAAFVISAPPF-UHFFFAOYSA-N
Target: Ribosomal protein S6 kinase beta-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P23443
Assay: P70S6K Enzyme Assay: P70S6K inhibitor compounds are diluted and plated in 96 well plates. A reaction mixture including the following components is then added to the compound plate to initiate the enzyme reaction; P70S6K (3 nM, T412E mutant, Millipore) is mixed with 24 uM ATP in an assay buffer containing 100 mM Hepes (pH 7.5), 5 mM MgCl2, 1 mM DTT, 0.015% Brij and 1 uM of the substrate peptide FITC-AHA-AKRRRLSSLRA-OH (derived from the S6 ribosomal protein sequence, FITC=fluorescein isothiocyanate, AHA=6-aminohexanoic acid). The reaction is incubated for 90 min at 25.degree. C., before the addition of 10 mM EDTA to stop the reaction. The proportion of substrate and product (phosphorylated) peptide is analysed on a Caliper Life Sciences Lab Chip 3000, using a pressure of -1.4 psi, and upstream and downstream voltages of -3000 and -700 respectively. Product peaks are resolved before substrate peaks on the resulting chromatograms.
Measurement: IC50 = 21 nM (pChEMBL 7.679999828338623)
Descriptors: MW 467.57, ALogP 3.66, HBA 7, HBD 1, PSA 76.1, QED 0.57
Compound (SMILES): O=C(Nc1ccccc1)N1CCN(Cc2csc3ccccc23)CC1
InChIKey: ADDKVUZIJTWXLE-UHFFFAOYSA-N
Target: Fatty-acid amide hydrolase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O00519
Assay: Biological Assay: Assay Method 1: T84 frozen pellets (contents of 1-4x15 cm culture dishes) were homogenized in 300 mL of FAAH assay buffer (125 mM Tris, 1 mM EDTA, 0.2% glycerol, 0.02% Triton X-100, 0.4 mM Hepes, pH 9). The assay mixture was prepared from 50 uL of the cell homogenate, 10 uL of the test compound, and 40 uL of anandamide [1-3H-ethanolamine] (3H-AEA; Perkin-Elmer, 10.3 Ci/mmol), which was added last, for a final tracer concentration of 200 nM. The reaction mixture was incubated at rt for 1 hour (h). During the incubation, 96-well Multiscreen filter plates (catalog number MAFCNOB50; Millipore, Bedford, Mass., USA) were loaded with 25 uL of activated charcoal (Multiscreen column loader, catalog number MACL09625, Millipore) and washed once with 100 uL of MeOH. Also during the incubation, 96-well DYNEX MicroLite plates (catalog number NL510410) were loaded with 100 uL of MicroScint40 (catalog number 6013641, Packard Bioscience, Meriden, Conn., USA).
Measurement: IC50 = 200 nM (pChEMBL 6.699999809265137)
Descriptors: MW 351.48, ALogP 4.25, HBA 3, HBD 1, PSA 35.58, QED 0.77
Compound (SMILES): CC(C)(CCOC[C@@H](O)CO)c1cc2cc(NC(=O)C3(c4ccc5c(c4)OC(F)(F)O5)CC3)c(F)cc2n1C[C@@H](O)CO
InChIKey: AVCNGKYYEKQPQT-UXHICEINSA-N
Target: Cystic fibrosis transmembrane conductance regulator (SINGLE PROTEIN), Homo sapiens
UniProt: P13569
Assay: Correction activity at CFTR F508 deletion mutant (unknown origin) expressed in mouse NIH/3T3 cells assessed as increase in cAMP/genistein-dependent current amplitude incubated for 10 mins at 37 degC by patch clamp method
Measurement: EC50 = 3095 nM (pChEMBL 5.510000228881836)
Descriptors: MW 608.61, ALogP 3.16, HBA 9, HBD 5, PSA 142.64, QED 0.19