lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): CN[C@@H](C)C(=O)N[C@H]1CCc2ccc(-c3ccccc3)cc2N(Cc2c(C)ccc3ccccc23)C1=O
InChIKey: ZBHQMUADNQRXDJ-ZTOMLWHTSA-N
Target: E3 ubiquitin-protein ligase XIAP (SINGLE PROTEIN), Homo sapiens
UniProt: P98170
Assay: TR-FRET Assay: The peptide AVPIAQKSEK-(ε-biotin)-OH (SEQ ID NO: 1) 1:2 TFA (Peptide A) was identified as a substrate for the TR-FRET assay by screening the 6× Histidine-tagged (SEQ ID NO: 2) BIR2 domain and BIR3 domain of XIAP against a set of 29 peptides synthesized based on sequences reported by Sweeny et al. (Biochemistry, 2006, 45, 14740 14748). The peptides were labeled with the fluorescent tags FITC or TAMRA and Kd values were determined by fluorescence polarization assay. The sequence AVPIAQKSEK (SEQ ID NO: 3) was identified as optimal for using in an assay. The peptide sequence was derivatized with biotin to provide AVPIAQKSEK-(ε-biotin)-OH (SEQ ID NO: 1) 1:2 TFA as the substrate for the TR-FRET assay.The XIAP protein sequence was obtained from the SWISS-PROT protein sequence database and the BIR2 and BIR3 domains were derived from that. The sequence of the BIR2 domain used for the TR-FRET assay is MRHHHHHHRDHFALDRPSETHADYLLRTGQVVDISDTIYPRNPAMYSEEARLKSFQNW PDYAHLTPRELASAGLYYTGIGDQVQCFACGGKLKNWEPGDRAWSEHRRHFPNCFFVL GRNLNIRSE (SEQ ID NO: 4).The sequence of the BIR3 domain used for the TR-FRET assay is MRHHHHHHRSDAVSSDRNFPNSTNLPRNPSMADYEARIFTFGTWIYSVNKEQLARAGF YALGEGDKVKCFHCGGGLTDWKPSEDPWEQHAKWYPGCKYLLEQKGQEYINNIHLTH SLEECLVRTT (SEQ ID NO: 5).Ten nanomolar of 6× Histidine-tagged (SEQ ID NO: 2) BIR2 domain, corresponding to amino acids 124-240 of XIAP, or BIR3 domain, corresponding to amino acids 241-356 of XIAP, was mixed with 20 nM of the peptide AVPIAQKSEK-(ε-biotin)-OH (SEQ ID NO: 1) 1:2 TFA, in the presence of 50 mM Tris-Cl, pH 7.5, 100 mM NaCl, 1 mM dithiothreitol (DTT) and 0.1 mg/niL bovine serum albumin (BSA). Following a 45 min. incubation at 37° C., Europium-Streptavidin and Allophycocyanin conjugated anti-Histidine antibody were added to a final concentration of 1.5 nM and 15 nM, respectively. Time-resolved fluorescence resonance energy transfer (TR-FRET) signals were measured 1 hour later at room temperature. Test compound potency was assessed at 10 serially diluted concentrations.
Measurement: IC50 = 2069 nM (pChEMBL 5.679999828338623)
Descriptors: MW 491.64, ALogP 5.39, HBA 3, HBD 2, PSA 61.44, QED 0.38
Compound (SMILES): Cn1cc(-c2cc3[nH]c(=O)[nH]c3cc2Oc2ccc(F)cc2F)c2cc[nH]c2c1=O
InChIKey: GWPMHMOGSQWLQC-UHFFFAOYSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: BRD4 AlphaScreen Assay: BRD4-BD1 and BRD4-BD2 assays were conducted in white 384-well polystyrene plate in a final volume of 20 μL for BD1 and 40 μL for BD2. Inhibitors were first serially diluted in DMSO and added to the plate wells before the addition of other reaction components. The final concentration of DMSO in the assay was 1.25% (BD1) and 0.83% (BD2). The assays were carried out at room temperature for 75 min. in the assay buffer (50 mM HEPES, pH 7.4, 100 mM NaCl, 0.05% CHAPS, 0.01% BSA), containing 50 nM Biotin-labeled tetra-acetylated histone H4 peptide (H4Ac4), 3.8 nM (BRD4-BD1, BPS Bioscience #31040) or 20 nM (BRD4-BD2, BPS Bioscience #31041). The reaction followed by the addition of 20 μL of assay buffer supplemented with Streptavidin donor beads (PerkinElmer 6760002) and GSH Acceptor beads (PerkinElmer-AL109C) at 4 g/mL under reduced light. After plate sealing, the plate was incubated in the dark at room temperature for 75 min. before reading on a PHERAstar FS plate reader (BMG Labtech). IC50 determination was performed by fitting the curve of percent control activity versus the log of the inhibitor concentration using the GraphPad Prism 5.0 software.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 408.36, ALogP 3.77, HBA 4, HBD 3, PSA 95.67, QED 0.42
Compound (SMILES): CCOc1cc(-c2ccc(N3CCC(CN(C)C)(NC(=O)OCC(C)C)CC3)nc2)c2c(C#N)cnn2c1
InChIKey: MWQXTBRGKTXBTF-UHFFFAOYSA-N
Target: Proto-oncogene tyrosine-protein kinase receptor Ret (SINGLE PROTEIN), Homo sapiens
UniProt: P07949
Assay: RET Enzyme Assay: Compounds of Formula I were screened for their ability to inhibit wildtype and V804M mutant RET kinase using CisBio's HTRF KinEASE-TK assay technology. Briefly, N-terminal GST tagged recombinant human RET cytoplasmic domain (aa 658-end) from Eurofins (0.25 nM RET; Catalog No. 14-570M) or N-terminal GST tagged recombinant human V804M mutant RET cytoplasmic domain (aa 658-end) from Millipore (0.25 nM enzyme; Catalog No. 14-760) was incubated with 250 nM TK-substrate biotin (CisBio, part of Catalog No. 62TK0PEC) and 1 mM ATP along with test compound in a buffer consisting of 25 mM HEPES pH 7.4, 10 mM MgCl2, 0.01% Triton X-100, and 2% DMSO in a volume of 8 μL. Compounds were typically prepared in a threefold serial dilution in DMSO and added to the assay to give the appropriate final concentration. After a 30-minute incubation at 22° C., the reaction was quenched by adding 8 μL of quench solution containing 31.25 nM Sa-XL665 and 1×TK-ab-Cryptate in HTRF detection buffer (all from CisBio, part of Cat. No. 62TK0PEC). After a 1 hour incubation at 22° C., the extent of reaction was determined using a PerkinElmer EnVision multimode plate reader via HTRF dual wavelength detection, and the percent of control (POC) was calculated using a ratiometric emission factor. 100 POC was determined using no test compounds and 0 POC was determined using pre-quenched control reactions. The POC values were fit to a 4 parameter logistic curve, and the IC50 is defined as the concentration of inhibitor at which the POC equals 50 for the fitted curve.
Measurement: IC50 = 11.2 nM (pChEMBL 7.949999809265137)
Descriptors: MW 519.65, ALogP 3.95, HBA 9, HBD 1, PSA 108.02, QED 0.45
Compound (SMILES): C[C@@H]1C[C@H](N)CN(c2ccncc2NCc2ccc(F)c(-c3c(F)cc(C4CCOCC4)cc3F)n2)C1
InChIKey: ROCDJLUCPMTXNH-XLIONFOSSA-N
Target: Serine/threonine-protein kinase pim-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11309
Assay: Enzyme Assay: Pim-1 and Pim-3 kinase assays-20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM mgCl2, 0.01% BSA, 5 mM DTT), containing 0.05M Biotin-labeled BAD peptide substrate (AnaSpec 62269), 1 mM ATP, and 2.5 pM (Pim-1, Invitrogen PV3503) or 1.25 pM (Pim-3, Millipore 14-738) enzyme for 1 h at 25° C. Reactions were stopped by addition of 10 μL STOP Buffer (150 mM Tris, pH=7.5, 150 mM NaCl, 75 mM EDTA, 0.01% Tween-20, 0.3% BSA,) supplemented with Phospho-Bad (Ser112) Antibody (Cell Signaling 9291) diluted 666-fold, and Streptavidin donor beads (PerkinElmer 6760002) along with Protein-A acceptor beads (PerkinElmer 6760137) at 15 μg/mL each. Supplementation of the STOP buffer with beads and stopping the reactions were done under reduced light. Prior to the stopping reactions STOP buffer with beads was preincubated for 1 h in the dark at room temperature. After stopping the reactions, plates were incubated for 1 h in the dark at room temperature before reading on a PHERAstar FS plate reader (BMG Labtech) under reduced light. Pim-2 kinase assay20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM mgCl2, 0.01% BSA, 5 mM DTT), containing 0.05M Fluorescein-labeled CREBtide peptide substrate (Invitrogen PV3508), 1 mM ATP, and 1 nM enzyme (Invitrogen PV3649) for 2 h at 25° C. Reactions were stopped by addition of 10 μL TR-FRET Dilution Buffer (Invitrogen PV3574) with 30 mM EDTA and 1.5 nM LanthaScreen Tb-CREB pSer133 antibody (Invitrogen PV3566). After 30 min. incubation at room temperature, plates were read on a PHERAstar FS plate reader (BMG Labtech).
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 511.59, ALogP 5.24, HBA 6, HBD 2, PSA 76.3, QED 0.47
Compound (SMILES): CC(C)OCC(=O)N1CCN(c2cccc3c2cnn3-c2ccccc2F)C1=O
InChIKey: BQWFCGFIJVFUSE-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: FLIPR 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 μg/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 μL assay buffer containing the fluorescent voltage-sensor probe CC2-DMPE (Invitrogen, Carlsbad, Calif.) at 20 μM 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 μL assay buffer containing 2.5 μM 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.
Measurement: IC50 = 1640 nM (pChEMBL 5.789999961853027)
Descriptors: MW 396.42, ALogP 3.36, HBA 5, HBD 0, PSA 67.67, QED 0.66
Compound (SMILES): CN(CC(N)=O)C(=O)c1ccc2c(c1)N(c1ncc(-c3ccccc3F)cn1)CC21CC1
InChIKey: SIGGPZGVYWXWJH-UHFFFAOYSA-N
Target: 3',5'-cyclic-AMP phosphodiesterase 4B (SINGLE PROTEIN), Homo sapiens
UniProt: Q07343
Assay: cAMP HTRF Assay to Determine the Activity of hPDE4B1: The inhibiting effect of the compounds on the enzyme activity of human PDE4B1 was measured by the quantification of 5′-adenosine monophosphate (5′-AMP), which is formed from 3′,5′-cyclic adenosine monophosphate (cAMP). Human recombinant enzyme, expressed in Sf9 cells, and the HTRF (homogeneous time-resolved fluorescence) detection method were used in the assay.The test compound or water (control) was mixed with the human recombinant PDE4B1 enzyme (4.8 U) in a buffer consisting of 44.4 mM tris-HCl, 5.28 mM MgCl2, 2.64 mM DTT and 0.044% Tween 20 (pH 7.8). After adding the cAMP enzyme substrate (final concentration 40 nM), the mixture was incubated for 30 minutes at room temperature. Then a fluorescence acceptor (Dye2 marked with cAMP), a fluorescence donor (anti-cAMP antibody marked with a europium cryptate) and the non-specific phosphodiesterase inhibitor IBMX (3-isobutyl-1-methylxanthine; final concentration 1 mM) were added. After 60 min the fluorescence transfer, which correlates with the amount of remaining cAMP, was measured with a microplate reader (Rubystar, BMG) at λex=337 nm, λem=620 nm and λem=665 nm. The enzyme activity was calculated from the quotient formed from the measured signal at 665 nm and that at 620 nm. The result was expressed as the percentage inhibition of enzyme activity of the control (without PDE4 inhibitor). The enzyme was omitted for measurement of the basal control.[N. Saldou et al., Comparison of recombinant human PDE4 isoforms: interaction with substrate and inhibitors, Cell. Signal. Vol. 10, No. 6, 427-440, 1998].
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 431.47, ALogP 3.02, HBA 5, HBD 1, PSA 92.42, QED 0.67
Compound (SMILES): CC(C)(CC(F)(F)F)C(=O)N1CCOc2c(C#N)cncc2C1
InChIKey: UHFXWGQAHILKEQ-UHFFFAOYSA-N
Target: Receptor-interacting serine/threonine-protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q13546
Assay: Fluorescent Polarization Binding (FP Binding) Assay: Test compounds were serially diluted in DMSO at 100 fold final concentrations in the assay (1% DMSO final). In each well of a 384-well Plate were dispensed 0.1 μL of compound solution (or DMSO for controls) followed by 5 μL of GST-hRIPK1 (8-327) at twice the final concentrations in assay buffer (50 mM HEPES pH 7.5, 10 mM NaCl, 50 mM MgCl2, 0.02% CHAPS, 0.5 mM DTT and 0.01% Pluronic F127). For negative control the enzyme addition was replaced by assay buffer only.After addition of 5 μL of fluorescentlabeled ligand at twice the final concentrations in assay buffer, the plate was incubated at RT for 30 mM. At the end, the binding was measured as FP value with the Envision (PerkinElmer) plate reader using filter for an excitation λ=531 nm FP and an emission λ=595 nm FP (S & P-pol). GST-hRIPK1 (8-327) enzyme was produced via Baculovirus expression.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 327.31, ALogP 2.65, HBA 4, HBD 0, PSA 66.22, QED 0.84
Compound (SMILES): Cc1c(-c2[nH]c3ccc(C4CCN(CC(=O)N(C)C)CC4)cc3c2C(C)C)cn2ncnc2c1C
InChIKey: FOOVZBBCSBCZKL-UHFFFAOYSA-N
Target: Toll-like receptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYK1
Assay: TLR7/8/9 Inhibition Reporter Assay: HEK-Blue-cells (Invivogen) overexpressing human TLR7, TLR8 or TLR9 receptors were used for screening inhibitors of these receptors using an inducible SEAP (secreted embryonic alkaline phosphatase) reporter gene under the control of the IFN-β minimal promoter fused to five NF-κB and AP-1-binding sites. Briefly, cells are seeded into Greiner 384 well plates (15000 cells per well for TLR7, 20,000 for TLR8 and 25,000 for TLR9) and then treated with test compounds in DMSO to yield a final dose response concentration range of 0.05 nM-50 μM. After a 30 minute compound pre-treatment at room temperature, the cells are then stimulated with a TLR7 ligand (gardiquimod at a final concentration of 7.5 μM), TLR8 ligand (R848 at a final concentration of 15.9 μM) or TLR9 ligand (ODN2006 at a final concentration of 5 nM) to activate NF-κB and AP-1 which induce the production of SEAP. After a 22 hour incubation at 37° C., 5% CO2, SEAP levels are determined with the addition of HEK-Blue Detection reagent (Invivogen), a cell culture medium that allows for detection of SEAP, according to manufacturer's specifications. The percent inhibition is determined as the % reduction in the HEK-Blue signal present in wells treated with agonist plus DMSO alone compared to wells treated with a known inhibitor.
Measurement: IC50 = 0.5 nM (pChEMBL 9.300000190734863)
Descriptors: MW 472.64, ALogP 4.89, HBA 5, HBD 1, PSA 69.53, QED 0.45
Compound (SMILES): CC(=O)c1c(C)c2cnc(Nc3ccc(C(=O)NCCCCCCC(=O)NO)cn3)nc2n(C2CCCC2)c1=O
InChIKey: LZBBJSVJRPQJKQ-UHFFFAOYSA-N
Target: CDK2/Cyclin A2 (PROTEIN COMPLEX), Homo sapiens
UniProt: P20248
Assay: Kinase Assay: In vitro enzymatic activity of the CDK isoforms CDK2/CycA2, CDK4/CycD3 and CDK6/cycD3 were measured using Mobility Shift Assay that monitors phosphorylation ratio of FAM labelled peptide (Peptide 18 for CDK2/CycA2, Peptide 8 for CDK4/CycD3 and CDK6/cycD3). CDK2/CycA2 and CDK6/cycD3 were assayed under buffer conditions in the presence of 50 mM HEPES (pH 7.5), 10 mM MgCl2, 0.0015% Brij-35, and 2 mM dithiothreitol, CDK4/CycD3 with buffer condition of 20 mM HEPES (pH 7.5), 10 mM MgCl2, 0.01% Triton X-100, and 2 mM dithiothreitol. Prepare compounds to 50× of the final desired highest inhibitor concentration by 100% DMSO and serial dilution in 3-fold for total of 10 concentrations. For each isoform, dosage of enzyme and substrate are CDK2/CycA2 12 nM, ATP Km 39 μM; CDK4/CycD3 10 nM, ATP Km 221 μM; CDK6/cycD3 15 nM, ATP Km 800 μM. After assay for 60 min, 180 min, 60 min respectively at 28° C., reactions were terminated with stop solution (50 mM EDTA, 0.015% Brij-35, 0.2% Coating Reagent #3 and 100 mM HEPES (pH 7.5)). Collect conversion on Caliper EZ Reader.
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 549.63, ALogP 3.74, HBA 10, HBD 4, PSA 168.2, QED 0.11
Compound (SMILES): Cc1cc(OCc2ccc(C(=O)NS(C)(=O)=O)cc2F)cc(-c2ccc(OCC3CC3)nc2)c1
InChIKey: QRHVYPBJFJKEOD-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: EFS-FRET Assay: This screen is used to determine the effects of compounds on human Nav1.7 channels, utilizing electrical field stimulation (EFS) system in 96-well plate format on FDSS (Hamamatsu Photonics) platform. The changes of membrane potential are monitored with FRET dye pair, DiSBAC2(3) and PTS 18.
Measurement: IC50 < 500 nM (pChEMBL 6.301000118255615)
Descriptors: MW 484.55, ALogP 4.25, HBA 6, HBD 1, PSA 94.59, QED 0.49
Compound (SMILES): COC[C@H]1C[C@@H]2[C@](c3cc(Oc4ncc(F)cc4F)ccc3F)(CO1)NC(=N)N(C)S2(=O)=O
InChIKey: JKCJILQQIJXQMN-YXKFXFPPSA-N
Target: Beta-secretase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P56817
Assay: HTRF FRET Assay: BACE1: Reagents: Na+-Acetate pH 5.0; 1% Brij-35; Glycerol; Dimethyl Sulfoxide (DMSO); Recombinant human soluble BACE1 catalytic domain (>95% pure); APP Swedish mutant peptide substrate (QSY7-APPswe-Eu): QSY7-EISEVNLDAEFC-Europium-amide.A homogeneous time-resolved FRET assay can be used to determine IC50 values for inhibitors of the soluble human BACE1 catalytic domain. This assay monitors the increase of 620 nm fluorescence that resulted from BACE1 cleavage of an APPswedish APPswe mutant peptide FRET substrate (QSY7-EISEVNLDAEFC-Europium-amide). This substrate contains an N-terminal QSY7 moiety that serves as a quencher of the C-terminal Europium fluorophore (620 nm Em). In the absence of enzyme activity, 620 nm fluorescence is low in the assay and increased linearly over 3 hours in the presence of uninhibited BACE1 enzyme. Inhibition of BACE1 cleavage of the QSY7-APPswe-Eu substrate by inhibitors is manifested as a suppression of 620 nm fluorescence.
Measurement: Ki = 20 nM (pChEMBL 7.699999809265137)
Descriptors: MW 486.47, ALogP 2.09, HBA 7, HBD 2, PSA 113.84, QED 0.67
Compound (SMILES): CC1CN(c2ccccc2OC(F)(F)F)CCC1C(=O)NCCC1CCN(Cc2ccccc2)CC1
InChIKey: UXPSDFHHPZRDEG-UHFFFAOYSA-N
Target: Muscarinic acetylcholine receptor M4 (SINGLE PROTEIN), Homo sapiens
UniProt: P08173
Assay: Binding Assay: Binding affinity (Ki) of compounds was measured by inhibition of radioligand binding to membranes from CHO cells expressing human M1, M2, M3, M4 and M5 receptors. Membranes were prepared by nitrogen cavitation and differential centrifugation as previously described (Hoare et al., Mol. Pharmacol. 2003 March; 63(3): 751-65). The radioligand employed was tritiated N-methylscopolamine, used at a concentration of 1.5 nM. A dose-response of twelve concentrations of compound was used, ranging from 10 Î¼M to 32 Î¼M. The assay buffer was 50 mM HEPES, 100 mM NaCl, 5 mM MgCl2, 1 mM ethylenediaminetetraacetic acid, pH-adjusted to pH 7.4.
Measurement: Ki = 550 nM (pChEMBL 6.260000228881836)
Descriptors: MW 503.61, ALogP 5.47, HBA 4, HBD 1, PSA 44.81, QED 0.52
Compound (SMILES): O=S(=O)(Nc1ccc(-c2nc(OC3CNC3)c3cn[nH]c3n2)cc1F)c1cc(Cl)ccc1F
InChIKey: HTRHPWUGCGMTNH-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase Sgk1 (SINGLE PROTEIN), Homo sapiens
UniProt: O00141
Assay: Enzymatic Activity Assay: The compounds were tested for serum and glucocorticoid-regulated kinase 1 (SGK-1) inhibitory activity in a substrate phosphorylation assay designed to measure the ability of the isolated enzyme to catalyze the transfer of phosphate from ATP to serine/threonine residues in a fluorescein-labeled substrate peptide, using recombinant human SGK-1 enzyme produced in a baculovirus system (Biomol, Hamburg, Germany, Cat. No. 4-331). The synthesized fluorescent labeled peptide substrate contained (5(6)-Carboxyfluorescein)-RPRAATF-NH2. The phosphorylated substrate peptide and non-phosphorylated substrate peptide were separated with caliper life science's lab-chip technology based on a micro fluidics method. All fluid flow was established on the chip by applying a vacuum of a few psi to the waste well transporting fluid from various sources through interconnecting channels. Because the phosphoryl group is doubly negatively charged, under the pressure-driven hydrodynamic flow and the voltage-driven flow within the electric field, the fluorescent labeled peptide substrate and its phosphorylation product appear at different times in the detection window to the detection point. Substrate turnover can thus be determined as the ratio of the product peak area and the sum of substrate peak area and product peak area.The enzyme reaction was carried out in a buffer containing 25 mM Tris-HCl (pH 7.4), 5 mM MgCl2, 2 mM MnCl2, 2 mM DTT, and 0.03% bovine serum albumine. The enzyme was pre-incubated with the test compound for 30 min at 24° C. The kinase reaction was initiated by addition of the substrate mixture containing the peptide substrate (final concentration 1 μM) and ATP (final concentration 10 μM). After 60 min incubation at 37° C., the enzyme reaction was terminated by adding a buffer containing 100 mM Hepes (pH 7.4) and 35 mM EDTA.
Measurement: IC50 = 29 nM (pChEMBL 7.539999961853027)
Descriptors: MW 492.9, ALogP 3.1, HBA 7, HBD 3, PSA 121.89, QED 0.38
Compound (SMILES): NC1=N[C@](CF)(c2cc(NC(=O)c3ccc(Br)cn3)ccc2F)C(F)(F)CC1
InChIKey: RQWHBVQMBAWLCW-QGZVFWFLSA-N
Target: Beta-secretase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P56817
Assay: BACE1 Binding Assay: The binding assay was performed as SPA-based assay using a biotinylated form of human BACE1 recombinantly expressed and subsequently purified from Freestyle HEK293 cells. The binding assay was run in a 50 mM sodium acetate buffer, pH 4.5 containing 50 mM NaCl and 0.03% Tween-20 in white clear bottom 384 plates (Corning #3653). 10 nM (final concentration) radioligand ([3H]-N-((1S,2R)-1-benzyl-3-cyclopropylamino-2-hydroxy-propyl)-5-(methanesulfonyl-methyl-amino)-N-((R)-1-phenyl-ethyl)-isophthalamide) (TRQ11569 purchased from GE Healthcare) was mixed with test compound at a given concentration, 6 nM (final concentration) human BACE1 and 25 μg Streptavidin coated PVT core SPA beads (RPNQ0007, GE Healthcare Life Sciences) in a total volume of 40 μl. Several concentrations of each test compound were tested in the assay for IC50 determination. The plates were incubated for one hour at room temperature and counted in a Wallac Trilux counter. Total and non-specific binding were determined using buffer and 1 μM (final concentration) of the high affinity BACE1 reference inhibitor (S)-6-[3-chloro-5-(5-prop-1-ynyl-pyridin-3-yl)-thiophen-2-yl]-2-imino-3,6-dimethyl-tetrahydro-pyrimidin-4-one, respectively. For each test compound, a IC50 value (the concentration mediating 50% inhibition of the specific binding of the radioligand) was determined from concentration-response curve and used to calculate the Ki from the equation Ki=IC50/(1+L/Kd), where L and Kd are the final concentration of the radioligand used in the assay and the dissociation constant of the radioligand, respectively. The Kd of the radioligand was determined from saturation binding experiments.
Measurement: Ki = 11 nM (pChEMBL 7.960000038146973)
Descriptors: MW 459.24, ALogP 4.19, HBA 4, HBD 2, PSA 80.37, QED 0.67
Compound (SMILES): O=C(Cc1ccccc1OC(F)(F)F)N[C@@H](Cc1coc2ccccc12)B(O)O
InChIKey: QBBIPVDMAQYALU-KRWDZBQOSA-N
Target: Proteasome Macropain subunit MB1 (SINGLE PROTEIN), Homo sapiens
UniProt: P28074
Assay: Determination of Beta5 Activity: Measurement of Beta5 inhibition is performed in 384 well format based on fluorescence intensity assay.Purified human constitutive proteasome (1.25 nM) and serial diluted compounds in DMSO (range of concentrations from 30 μM to 15 μM) or controls are incubated for 20 minutes at 25° C. in assay buffer containing 50 mM Tris pH 7.4, 0.03% SDS, 1 mM EDTA and 1% DMSO. The reaction is initiated by the addition of the fluorogenic peptide substrate, Suc-LLVY-AMC (Bachem 1-1395), at a concentration of 40 μM. After 60 minutes of incubation at 37° C., fluorescence intensity is measured at λex=350 nm and λem=450 nm with a fluorescence reader (Perkin Elmer Envision reader or equivalent).
Measurement: IC50 = 2750 nM (pChEMBL 5.559999942779541)
Descriptors: MW 407.15
Compound (SMILES): O=C(O)CCCOc1ccc(-c2cccnc2OCC2CC2)cc1F
InChIKey: XNKADRHDECHMSR-UHFFFAOYSA-N
Target: Free fatty acid receptor 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q5NUL3
Assay: Measurement of Activity of GPR120 Agonist (Cell-Based Assay): CHO-K1 cells expressing Ga16 and hGPR120 were dispensed into each well of a 96-well plate (3×104 cells/100 μl/well) and then incubated in 5% CO2, 37° C. incubator for 18 hours. Each well was treated with 100 μl of Calcium 5 dye (Molecular Devices) solution including 2% DMSO and then incubated in 5% CO2, 37° C. incubator for 1 hour. Serially diluted GPR120 agonists were prepared to a final concentration of 0.5% DMSO in a 96-well plate. Each well was treated with 50 μl of the agonist compounds using Plexstation II, and then fluorescence was measured at Ex 485 nm and Em 525 nm.Fluorescence increased by the serially diluted GPR120 agonists is calculated as a relative percent (%) value based on the fluorescence represented by the treatment of 1% DMSO only. EC50 refers to the concentration of agonist which shows 50% of maximum fluorescence increased by the treatment of agonist. The calculation of measurement was carried out by using statistical software (Prizm).
Measurement: EC50 = 1100 nM (pChEMBL 5.960000038146973)
Descriptors: MW 345.37, ALogP 3.92, HBA 4, HBD 1, PSA 68.65, QED 0.7
Compound (SMILES): C=CC(=O)N1CCCC(Oc2nc(Nc3ccc(OC)nc3)ncc2F)C1
InChIKey: CPIVTGQSAQHKHT-UHFFFAOYSA-N
Target: Tyrosine-protein kinase ITK/TSK (SINGLE PROTEIN), Homo sapiens
UniProt: Q08881
Assay: Omnia Assay Protocol : Briefly, 10× stocks of EGFR-WT (PV3872) from Invitrogen and EGFR-T790M/L858R (40350) from BPS Bioscience, San Diego, Calif., 1.13×ATP (AS001A) and appropriate Tyr-Sox conjugated peptide substrates (KCZ1001) were prepared in 1× kinase reaction buffer consisting of 20 mM Tris, pH 7.5, 5 mM MgCl2, 1 mM EGTA, 5 mM β-glycerophosphate, 5% glycerol (10× stock, KB002A) and 0.2 mM DTT (DS001A). 5 μL of each enzyme were pre-incubated in a Corning (#3574) 384-well, white, non-binding surface microtiter plate (Corning, N.Y.) for 30 min. at 27° C. with a 0.5 μL volume of 50% DMSO and serially diluted compounds prepared in 50% DMSO. Kinase reactions were started with the addition of 45 μL of the ATP/Tyr-Sox peptide substrate mix and monitored every 30-90 seconds for 60 minutes at λex360/λcm485 in a Synergy4 plate reader from BioTek (Winooski, Vt.).
Measurement: IC50 = 550 nM (pChEMBL 6.260000228881836)
Descriptors: MW 373.39, ALogP 2.32, HBA 7, HBD 1, PSA 89.47, QED 0.78
Compound (SMILES): O=C(O)c1cnn(-c2nc3cc(SCC4CCCCC4)c(Cl)cc3[nH]2)c1
InChIKey: WKNWZNPKYFPZCQ-UHFFFAOYSA-N
Target: Egl nine homolog 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9GZT9
Assay: Enzyme Activity Assay: The PHD2181-417 polypeptide (3 μg) was pre-incubated for 30 minutes with test compound prior to assessing the enzymatic activity of the polypeptide. The PHD enzymatic assay was then performed by transferring the purified PHD2181-417 polypeptide (3 μg) mixture with compound to 0.5 ml of reaction mixture containing the following: synthetic HIF-1α peptide comprising residues [KNPFSTGDTDLDLEMLAPYIPMDDDFQLRSFDQLS] (10 μM, California Peptide Research Inc., Napa, Calif.), and [5-14C]-2-oxoglutaric acid (50 mCi/mmol, Moravek Chemicals, Brea, Calif.) in reaction buffer (40 mM Tris-HCl, pH 7.5, 0.4 mg/ml catalase, 0.5 mM DTT, 1 mM ascorbate) for 10 minutes in the presence of compound. The reaction was stopped by addition of 50 μl of 70 mM H3PO4 and 50 μl of 500 mM NaH2PO4, pH 3.2. Detection of [14C]-succinic acid was achieved by separating from [5-14C]-2-oxoglutaric acid by incubating the reaction mixture with 100 μl of 0.16 M DNP prepared in 30% perchloric acid. Next, 50 μl of unlabeled 20 mM 2-oxoglutaric acid/20 mM succinic acid, serving as carrier for the radioactivity, was added to the mixture, and was allowed to proceed for 30 minutes at room temperature. The reaction was then incubated with 50 μl of 1 M 2-oxoglutaric acid for 30 additional minutes at room temperature to precipitate the excess DNP. The reaction was then centrifuged at 2800×g for 10 minutes at room temperature to separate [14C]-succinic acid in the supernatant from the precipitated [14C]-dinitrophenylhydrazone. Fractions of the supernatant (400 μl) were counted using a beta counter (Beckman Coulter, Fullerton, Calif.). Inhibition of PHD2181-417 activity was measured as a decrease in [14C]-succinic acid production. The IC50 values were estimated by fitting the data to a three-parameter logistic function using GraphPad Prism, version 4.02 (Graph Pad Software, San Diego, Calif.). IC50 values up to 10 μM were quantified otherwise were noted as >10 μM. All compounds were diluted at 10 mM in 100% DMSO (w/v) and tested from 10 μM to 3 nM at half-log serial dilutions, with a final concentration of 2% DMSO (w/v) in the assay.
Measurement: IC50 = 126 nM (pChEMBL 6.900000095367432)
Descriptors: MW 390.9, ALogP 4.77, HBA 5, HBD 2, PSA 83.8, QED 0.61
Compound (SMILES): CC(C)CN1CC(NC(=O)c2n[nH]c3ccc(-c4cncc(Cl)c4)cc23)C1
InChIKey: LXHODWJEUJZONE-UHFFFAOYSA-N
Target: Proto-oncogene Wnt-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P04628
Assay: Wnt activity assay: Reporter cell lines were generated by stably transducing cells of cancer cell lines (e.g., colon cancer) with a lentiviral construct that include a Wnt-responsive promoter driving expression of the firefly luciferase gene.Lentiviral constructs were made in which the SP5 promoter, a promoter having eight TCF/LEF binding sites derived from the SP5 promoter, was linked upstream of the firefly luciferase gene. The lentiviral constructs included a hygromycin resistance gene as a selectable marker. The SP5 promoter construct was used to transduce SW480 cells, a colon cancer cell line having a mutated APC gene that generates a truncated APC protein, leading to de-regulated accumulation of β-catenin. A control cell line was generated using another lentiviral construct containing the luciferase gene under the control of the SV40 promoter which does not require β-catenin for activation.Cultured SW480 cells bearing a reporter construct were distributed at approximately 10,000 cells per well into 384 well multiwell plates. Compounds were then added to the wells in half-log dilutions using a three micromolar top concentration. A series of control wells for each cell type received only buffer and compound solvent. Twenty-four hours after the addition of compound, reporter activity for luciferases was assayed, for example, by addition of the BrightGlo luminescence reagent (Promega) and the Victor3 plate reader (Perkin Elmer). Readings were normalized to DMSO only treated cells, and normalized activities were then used for the IC50 calculations.
Measurement: IC50 = 3300 nM (pChEMBL 5.480000019073486)
Descriptors: MW 383.88, ALogP 3.35, HBA 4, HBD 2, PSA 73.91, QED 0.71
Compound (SMILES): Cn1cc(Cn2c(=O)c3cc(S(=O)(=O)NC4(C)CC4)ccc3n(CCN3CCCC3)c2=O)cn1
InChIKey: MILIGQVUKMBLAP-UHFFFAOYSA-N
Target: Poly(ADP-ribose) glycohydrolase (SINGLE PROTEIN), Homo sapiens
UniProt: Q86W56
Assay: PARG Assay: PARG In vitro assays were conducted in a total volume of 15 ul in a standard 384 well format. 5 ul of Human Full Length PARG (Produced internally by Astra Zeneca), used at a final reaction concentration of 80 pM, was added to 5 ul of Ribosylated PARP substrate (also produced internally by Astra Zeneca) at final reaction concentration of 4.5 nM in assay buffer (50 mM Tris pH7.4, 0.1 mg/ml BSA, 3 mM EDTA, 0.4 mM EGTA, 1 mM DTT, 0.01% Tween 20, 50 mM KCl). The reaction was incubated at room temperature for 10 minutes and then 5 ul detection reagent was added. Detection Reagent consists of 42 nM MAb Anti-6HIS XL665 (CisBio: 61HISXLB) and 2.25 nM Streptavidin Europium Cryptate (CisBio: 610SAKLB), both at 3× working stock concentrations (final concentrations of 14 nM and 0.75 nM respectively), in a detection buffer of 50 mM Tris pH7.4, BSA at 0.1 mg/ml and KF at 100 mM. Following incubation at room temperature for 60 minutes in the dark, TR-FRET signal was measured at Ex 340 and Em 665 and Em 620. A ratio was calculated as Em665/EM620×104 for each well and used to calculate percent inhibition for test compounds.
Measurement: IC50 = 317 nM (pChEMBL 6.5)
Descriptors: MW 486.6, ALogP 0.87, HBA 9, HBD 1, PSA 111.23, QED 0.51
Compound (SMILES): COCC1(C(=O)NCCN2CCC(c3cccc(C(F)(F)F)n3)CC2)CC1
InChIKey: NEDKIEZVBKFWHQ-UHFFFAOYSA-N
Target: 5-hydroxytryptamine receptor 1A (SINGLE PROTEIN), Homo sapiens
UniProt: P08908
Assay: Evaluation of Agonistic Activity for Human 5-HT1A Receptor and Human D4 Receptor: Aequorin, Gα16 proteins, and each receptor were transiently expressed in CHO-K1 cell (Chinese hamster ovary), and seeded to 384-well plate. The plate was incubated in a CO2 incubator at 37° C. for 24 hours. Each example compound dissolved in DMSO was added thereto, and the change of luminescence amount was measured with Hamamatsu FDSS/μCELL System (Hamamatsu Photonics). As for the agonistic activity, the maximum activity (Emax) of each compound was calculated on the assumption that the luminescence amount of the well without the compound is 0% and the luminescence amount of the well containing 10 μmol/L endogenous ligand is 100%.
Measurement: EC50 < 10 nM (pChEMBL 8)
Descriptors: MW 385.43, ALogP 2.82, HBA 4, HBD 1, PSA 54.46, QED 0.78
Compound (SMILES): CSc1cnc(N[C@H]2C[C@H](CO)[C@H](Nc3nc4ccc(S(=O)(=O)N(C)C)cc4s3)C2)nc1
InChIKey: AUFWYXWCSVNSEE-IIYDPXPESA-N
Target: Proprotein convertase subtilisin/kexin type 9 (SINGLE PROTEIN), Homo sapiens
UniProt: Q8NBP7
Assay: SPR Assay: Surface plasmon resonance data was collected on a Biacore T200 or 3000 system (GE Healthcare) at 25° C. Streptavidin was immobilized on a CM5 (GE Healthcare) or CMD500d sensor chip (XanTec Bioanalytics) using standard amine-coupling chemistry at 25° C. with HBS-N (10 mM HEPES, 0.15 M NaCl, pH 7.4) as the running buffer. Briefly, the carboxymethyl dextran surface was activated with a 12 min injection of a 1:1 ratio of 0.4 M 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC)/0.1 M N-hydroxy succinimide (NHS) at a flow rate of 10 μL/min. For capture of streptavidin, protein was diluted to 0.2 mg/mL in 10 mM sodium acetate (pH 4.5) and captured by injecting 100 μL onto the activated chip surface. Residual activated groups were blocked with a 7 min injection of 1 M ethanolamine (pH 8.5). Avi-tagged PCSK9 protein was captured on the streptavidin surface by injection of 150 μL of protein diluted to 16 pg/mL in FIBS-N, 0.05% tween-20, 0.1 mM CaCl2. Typical surface densities obtained were 8000-10000 RU. SPR binding data were obtained using an appropriate dilution series of each compound at a flow rate of 30 μL/min, with a capture time of 100 s and dissociation times of 300 s. Running buffer for compound binding studies was FIBS-N, 0.05% tween-20, 0.1 mM CaCl2), 4% DMSO. Data were corrected for DMSO excluded volume effects. All data were double-referenced for blank injections and reference surface using standard processing procedures and data processing and kinetic fitting were performed using Scrubber software, version 2.0c (BioLogic Software).
Measurement: Kd = 1100 nM (pChEMBL 5.960000038146973)
Descriptors: MW 494.67, ALogP 2.72, HBA 10, HBD 3, PSA 120.34, QED 0.41
Compound (SMILES): Cn1ncc(-c2ccc3ncc(-c4cc(F)cc(F)c4)c(N4CCC5NCCO[C@@H]5C4)c3c2)c1/C=C/O
InChIKey: VZQOUCRMHMLWAY-MVQBGWJMSA-N
Target: Somatostatin receptor type 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P30874
Assay: cAMP Assay: Four days prior to the assay, 5,000 Chinese hamster ovary cells (CHO-K1, ATCC # CCL-61) stably expressing the human SSTR2 are plated in each well of a 96-well tissue culture-treated plate in Ham's F12 growth media (ThermoFisher #10-080-CM) supplemented with 10% donor bovine serum (Gemini Bio-Products #100-506), 100 U/mL penicillin; 100 ug/mL streptomycin; 2 mM L-glutamine (Gemini Bio-Products #400-110) and 0.2 mg/mL hygromycin B (GoldBio #31282-04-9). The cells are cultured at 37° C., 5% CO2 and 95% humidity. On the day of the assay, the media is aspirated and the cells are treated with 50 μL of 1.6 μM NKH477 (Sigma # N3290) plus various dilutions of compounds of the invention in assay buffer [1× Hank's Balanced Salt Solution (ThermoFisher # SH3058802), 0.5 mM HEPES pH 7.4, 0.1% bovine serum albumin, 0.2 mM 3-Isobutyl-1-methylxanthine (IBMX, VWR #200002-790)]. The cells are incubated for 20 minutes at 37° C. (the final concentration of the compounds of the invention are typically 0-10,000 nM). The cells are treated with 50 μL of lysis buffer (HRTF cAMP kit, Cisbio). The lysate is transferred to 384-well plates and cAMP detection and visualization antibodies are added and incubated for 1-24 hours at room temperature. The time-resolved fluorescent signal is read with a Tecan M1000Pro multiplate reader.
Measurement: EC50 < 10 nM (pChEMBL 8)
Descriptors: MW 503.55, ALogP 4.68, HBA 7, HBD 2, PSA 75.44, QED 0.39
Compound (SMILES): C[C@@H]1C[C@H](N)C[C@H](c2ccncc2NC(=O)c2ccc(F)c3cc(N4CCCN(C)CC4)cnc23)C1
InChIKey: RSHXXSFMLRIMJV-ZCNNSNEGSA-N
Target: Serine/threonine-protein kinase pim-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11309
Assay: Enzyme Assay: Pim-1 and Pim-3 kinase assays20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM mgCl2, 0.01% BSA, 5 mM DTT), containing 0.05 μM Biotin-labeled BAD peptide substrate (AnaSpec 62269), 1 mM ATP, and 2.5 pM (Pim-1, Invitrogen PV3503) or 1.25 pM (Pim-3, Millipore 14-738) enzyme for 1 h at 25° C. Reactions were stopped by addition of 10 μL STOP Buffer (150 mM Tris, pH=7.5, 150 mM NaCl, 75 mM EDTA, 0.01% Tween-20, 0.3% BSA,) supplemented with Phospho-Bad (Ser112) Antibody (Cell Signaling 9291) diluted 666-fold, and Streptavidin donor beads (PerkinElmer 6760002) along with Protein-A acceptor beads (PerkinElmer 6760137) at 15 mL each. Supplementation of the STOP buffer with beads and stopping the reactions were done under reduced light. Prior to the stopping reactions STOP buffer with beads was preincubated for 1 h in the dark at room temperature. After stopping the reactions, plates were incubated for 1 h in the dark at room temperature before reading on a PHERAstar FS plate reader (BMG Labtech) under reduced light.
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 490.63, ALogP 4.39, HBA 6, HBD 2, PSA 87.38, QED 0.56
Compound (SMILES): Cc1noc(C)c1-c1ccc2c(=O)n(C)n3c2c1OCC3c1ccccc1
InChIKey: WMQJYIWRCZWGDF-UHFFFAOYSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: AlphaScreen Assay: BRD4-BD1 and BRD4-BD2 assays were conducted in white 384-well polystyrene plate in a final volume of 20 μL for BD1 and 40 μL for BD2. Inhibitors were first serially diluted in DMSO and added to the plate wells before the addition of other reaction components. The final concentration of DMSO in the assay was 1.25% (BD1) and 0.83% (BD2). The assays were carried out at room temperature for 75 min. in the assay buffer (50 mM HEPES, pH 7.4, 100 mM NaCl, 0.05% CHAPS, 0.01% BSA), containing 50 nM Biotin-labeled tetra-acetylated histone H4 peptide (H4Ac4), 3.8 nM (BRD4-BD1, BPS Bioscience #31040) or 20 nM (BRD4-BD2, BPS Bioscience #31041). The reaction followed by the addition of 20 μL of assay buffer supplemented with Streptavidin donor beads (PerkinElmer 6760002) and GSH Acceptor beads (PerkinElmer-AL109C) at 4 jag/mL under reduced light. After plate sealing, the plate was incubated in the dark at room temperature for 75 min. before reading on a PHERAstar FS plate reader (BMG Labtech). IC50 determination was performed by fitting the curve of percent control activity versus the log of the inhibitor concentration using the GraphPad Prism 5.0 software.
Measurement: IC50 < 200 nM (pChEMBL 6.698999881744385)
Descriptors: MW 361.4, ALogP 3.59, HBA 6, HBD 0, PSA 62.19, QED 0.55
Compound (SMILES): CNC(=O)c1ccn2ncnc(Nc3cccc(-c4nnn(C(C)C)n4)c3)c12
InChIKey: JIKNZUZJBMJSQO-UHFFFAOYSA-N
Target: AP2-associated protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q2M2I8
Assay: Kinase Assay: The assays were performed in U-bottom 384-well plates. The final assay volume was 30 μl prepared from 15 μl additions of enzyme and substrates (fluoresceinated peptide (5-FAM)-Aha-KEEQSQITSQVTGQIGWR-NH2 and ATP) and test compounds in assay buffer (10 mM Tris-HCL pH 7.4, 10 mM MgCl2, 0.01% Tween-20 and 1.0 mM DTT). The reactions were initiated by the combination of bacterially expressed, GST-Xa-hAAK1 with substrates and test compounds. The reactions were incubated at room temperature for 3 hours and terminated by adding 60 μl of 35 mM EDTA buffer to each sample. The reactions were analyzed on the Caliper LabChip 3000 (Caliper, Hopkinton, Mass.) by electrophoretic separation of the fluorescent substrate and phosphorylated product. Inhibition data were calculated by comparison to EDTA quenched control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition. The final concentration of reagents in the assays are ATP, 22 μM; (5-FAM)-Aha-KEEQSQITSQVTGQIGWR-NH2, 1.5 μM; GST-Xa-hAAK1, 3.5 nM; and DMSO, 1.6%. Dose response curves were generated to determine the concentration required inhibiting 50% of kinase activity (IC50). Compounds were dissolved at 10 mM in dimethylsulfoxide (DMSO) and evaluated at eleven concentrations.
Measurement: IC50 = 26 nM (pChEMBL 7.579999923706055)
Descriptors: MW 377.41, ALogP 2.07, HBA 9, HBD 2, PSA 114.92, QED 0.55
Compound (SMILES): Cc1c(Cn2c(C)nc3c(CO)cc(N4CCOCC4)cc32)cccc1C(F)(F)F
InChIKey: GVKMJEYAALIVNF-UHFFFAOYSA-N
Target: Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit beta (SINGLE PROTEIN), Homo sapiens
UniProt: O00750
Assay: HTRF In vitro Profiling Assay: PI3Kinase Reaction Buffer was prepared by diluting the stock 1:4 with de-ionized water. Freshly prepared DTT was added at a final concentration of 5 mM on the day of use. Enzyme addition and compound pre-incubation were initiated by the addition of 2.5 μL of PI3K (at twice its final concentration) in 1× reaction buffer to all wells using a Multidrop Combi. Plates were incubated at room temperature for 15 minutes. Reactions were initiated by addition of 2.5 μL of 2× substrate solution (PIP2 and ATP in IX reaction buffer) using a Multidrop Combi. Plates were incubated at room temperature for one hour. Reactions were quenched by the addition of 2.5 μL of stop solution (Stop A and Stop B pre-mixed at a ratio of 5:1, respectively) to all wells using the Multidrop Combi. The quenched reactions were then processed to detect product formation by adding 2.5 μL of Detection Solution to all wells using the Multidrop Combi (Detection mix C, Detection mix A, and Detection mix B combined together in an 18:1:1 ratio, i.e.: for a 6000 μL total volume, mix 5400 μL Detection mix C, 300 μL Detection mix A, and 300 μL Detection mix B. Note: this solution should be prepared 2 hours prior to use). Following a one hour incubation in the dark, the HTRF signal was measured on the Envision plate reader set for 330 nm excitation and dual emission detection at 620 nm (Eu) and 665 nm (APC).
Measurement: IC50 = 5.01 nM (pChEMBL 8.300000190734863)
Descriptors: MW 419.45, ALogP 4.05, HBA 5, HBD 1, PSA 50.52, QED 0.69
Compound (SMILES): Cc1nnc2n1-c1ccccc1C(c1ccc(Cl)cc1)=C[C@H]2CC(=O)N1CCC2(CCCC2)CC1
InChIKey: ZKXOUSATKCVTEA-QFIPXVFZSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: Time-Resolved Fluorescence Resonance energy Transfer (TR-FRET) Assay: For this purpose, a time-resolved fluorescence resonance energy transfer (TR-FRET) assay was used, which measures the binding between N-terminally His6-tagged BRD4(1) (amino acids 44-168) and a synthetic acetylated histone H4 (Ac-H4) peptide with sequence GRGK(Ac)GGK(Ac)GLGK(Ac)GGAK(Ac)RHGSGSK-biotin. The recombinant BRD4 protein produced in-house according to Filippakopoulos et al., Cell, 2012, 149:214-231 was expressed in E. coli and purified by means of (Ni-NTA) affinity and (Sephadex G-75) size exclusion chromatography. The Ac-H4 peptide can be purchased, for example, from Biosyntan (Berlin, Germany).In the assay, typically 11 different concentrations of each substance (0.1 nM, 0.33 nM, 1.1 nM, 3.8 nM, 13 nM, 44 nM, 0.15 μM, 0.51 μM, 1.7 μM, 5.9 μM and 20 μM) were analysed as duplicates on the same microtitre plate. For this purpose, 100-fold concentrated solutions in DMSO were prepared by serial dilutions (1:3.4) of a 2 mM stock solution into a clear, 384-well microtitre plate (Greiner Bio-One, Frickenhausen, Germany). From this, 50 nl were transferred into a black test plate (Greiner Bio-One, Frickenhausen, Germany). The test was started by the addition of 2 μl of a BRD4 solution of 2.5 times the concentration (final concentration typically 10 to 50 nM in the 5 μl of reaction volume) in aqueous assay buffer [50 mM HEPES pH 7.5, 50 mM sodium chloride (NaCl), 0.25 mM CHAPS and 0.05% bovine serum albumin (BSA)] to the substances in the test plate. This was followed by a 10-minute incubation step at 22° C. for the pre-equilibration of putative complexes between BRD4 and the substances. Subsequently, 3 μl of a solution of 1.67 times the concentration (in assay buffer) consisting of Ac-H4 peptide (83.5 nM) and TR-FRET detection reagents [16.7 nM anti-6His-XL665 and 3.34 nM streptavidin cryptate (both from Cisbio Bioassays, Codolet, France), and 668 mM potassium fluoride (KF)] were added.
Measurement: IC50 = 1800 nM (pChEMBL 5.75)
Descriptors: MW 487.05, ALogP 6.33, HBA 4, HBD 0, PSA 51.02, QED 0.43
Compound (SMILES): CCn1c(-c2cccnc2[C@H](C)OC)c2c3cc(ccc31)N1CCC[C@@H](C[C@H](NC(=O)[C@H](C(C)C)N(C)C(=O)C3(F)CCN(C(=O)C#CC(C)(C)N(C)C)CC3)C(=O)N3CCC[C@H](N3)C(=O)OCC(C)(C)C2)C1
InChIKey: JQYXFAGNCXTWKV-LQTGTODFSA-N
Target: GTPase KRas (SINGLE PROTEIN), Homo sapiens
UniProt: P01116
Assay: Biochemical Assay: A variety of Ras proteins may be inhibited by compounds of the present invention (e.g., K-Ras, N-Ras, H-Ras, and mutants thereof at positions 12, 13 and 61, such as G12C, G12D, G12V, G12S, G13C, G13D, and Q61L, and others described herein). The purpose of this biochemical assay is to measure the ability of test compounds to covalently label nucleotide-loaded K-Ras isoforms. In assay buffer containing 12.5 mM HEPES pH 7.4, 75 mM NaCl, 1 mM MgCl2, 1 mM BME, 5 uM Cyclophilin A and 2 uM test compound, a 5 uM stock of GMP-PNP-loaded K-Ras (1-169) G12C is diluted 10-fold to yield a final concentration of 0.5 uM; with final sample volume being 100 uL. The sample is incubated at 25�� C. for a time period of up to 24 hours prior to quenching by the addition of 10 uL of 5% Formic Acid. Quenched samples are centrifuged at 15000 rpm for 15 minutes in a benchtop centrifuge before injecting a 10 uL aliquot onto a reverse phase C4 column and eluting into the mass spectrometer with an increasing acetonitrile gradient in the mobile phase. Analysis of raw data may be carried out using Waters MassLynx MS software, with % bound calculated from the deconvoluted protein peaks for labeled and unlabeled K-Ras.
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 1010.31
Compound (SMILES): CCCc1cc2nc(C(=O)Nc3cnccc3N3C[C@@H](N)[C@H](O)[C@@H](C)C3)ccc2s1
InChIKey: FBVMFTDWISBWQE-QDUSTFBWSA-N
Target: Serine/threonine-protein kinase pim-3 (SINGLE PROTEIN), Homo sapiens
UniProt: Q86V86
Assay: Enzyme Assay: Pim-1 and Pim-3 kinase assays 20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM MgCl2, 0.01% BSA, 5 mM DTT), containing 0.05 μM Biotin-labeled BAD peptide substrate (AnaSpec 62269), 1 mM ATP, and 2.5 μM (Pim-1, Invitrogen PV3503) or 1.25 μM (Pim-3, Millipore 14-738) enzyme for 1 h at 25° C. Reactions were stopped by addition of 10 μL STOP Buffer (150 mM Tris, pH=7.5, 150 mM NaCl, 75 mM EDTA, 0.01% Tween-20, 0.3% BSA) supplemented with Phospho-Bad (Ser112) Antibody (Cell Signaling 9291) diluted 666-fold, and Streptavidin donor beads (PerkinElmer 6760002) along with Protein-A acceptor beads (PerkinElmer 6760137) at 15 μg/mL each. Supplementation of the STOP buffer with beads and stopping the reactions were done under reduced light. Prior to the stopping reactions STOP buffer with beads was preincubated for 1 h in the dark at room temperature. After stopping the reactions, plates were incubated for 1 h in the dark at room temperature before reading on a PHERAstar FS plate reader (BMG Labtech) under reduced light.
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 425.56, ALogP 3.04, HBA 7, HBD 3, PSA 104.37, QED 0.58