lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): COc1cc2c(Nc3ccc(Cl)c(Cl)c3)ncnc2cc1OCc1noc(C2CCNCC2)n1
InChIKey: LFVVFUDFYJQWPX-UHFFFAOYSA-N
Target: Ephrin type-B receptor 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P54760
Assay: AlphaScreen Assay: In AlphaScreen, when the donor and acceptor beads are close in proximity, a series of photochemical events will give rise to a fluorescent signal upon light activation. Here we use biotinylated poly-(Glu, Tyr) 4:1 as the kinase substrate, streptavidin-coated donor beads and anti-phosphortyrosine antibody PY100-coated acceptor beads. Upon phosphorylation, the peptide substrate can bind to both donor and acceptor beads, thus gives rise to fluorescence. Compounds, ATP, biotinylated poly-(Glu, Tyr) and kinases are mixed in a volume of 20 μL for 1 hr at ambient temperature using Greiner 384-well white clear bottom medium binding plates. Then 10 uL solution containing 15-30 mg/mL AlphaScreen beads, 75 mM Hepes, pH 7.4, 300 mM NaCl, 120 mM EDTA, 0.3% BSA and 0.03% Tween-20 is added to each well. After 2-16 hr incubation of the beads, plates are read in a Perkin Elmer AlphaQuest reader (available from PerkinElmer Life and Analytical Sciences, Inc., of Boston Mass.).
Measurement: IC50 = 525 nM (pChEMBL 6.28000020980835)
Descriptors: MW 501.37, ALogP 5.12, HBA 9, HBD 2, PSA 107.22, QED 0.36
Compound (SMILES): c1csc(Cc2cccc3c2CCC2CNCCN32)c1
InChIKey: NNRMMTGPLBXKIO-UHFFFAOYSA-N
Target: 5-hydroxytryptamine receptor 2B (SINGLE PROTEIN), Homo sapiens
UniProt: P41595
Assay: Agonist activity at 5-HT2B receptor (unknown origin) expressed in HEK293 cells assessed as [3H]inositol phosphate accumulation after 2 hrs by scintillation counting
Measurement: EC50 = 398.11 nM (pChEMBL 6.400000095367432)
Descriptors: MW 284.43, ALogP 3.06, HBA 3, HBD 1, PSA 15.27, QED 0.91
Compound (SMILES): CCCn1cc(-c2cnc3ccc(N(CCN)c4cc(OC)cc(OC)c4)cc3n2)cn1.Cl
InChIKey: FYIRHIZOHYRDDH-UHFFFAOYSA-N
Target: Fibroblast growth factor receptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P22607
Assay: Inhibition of FGFR3 (unknown origin) transfected in mouse BA/F3 cells assessed as decrease in cell proliferation in presence of mouse IL3 after 24 hrs by Alamar blue assay
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 432.53, ALogP 4.02, HBA 8, HBD 1, PSA 91.32, QED 0.43
Compound (SMILES): Cc1cc(Nc2cc(C3CC3)[nH]n2)nc(NCc2cc(-c3ccc(F)cc3)no2)n1
InChIKey: AJJSLFSNFBJIOF-UHFFFAOYSA-N
Target: Insulin-like growth factor 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P08069
Assay: Inhibition of human IGF1R kinase domain (M954 to C1367 residues) tri-phosphorylated enzyme form expressed in baculovirus based expression system using poly-EY peptide incubated for 2 hrs by luciferase-luciferin coupled chemiluminescent assay
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 405.44, ALogP 4.54, HBA 7, HBD 3, PSA 104.55, QED 0.41
Compound (SMILES): Cn1ccc(NC(=O)Nc2ccc(-c3nc(N4CC5CCC(C4)O5)nc4c3C(=O)N(C3CCOCC3)CC(C)(C)O4)cc2)n1
InChIKey: HRRWYAHXNZQQHK-UHFFFAOYSA-N
Target: Phosphatidylinositol 3-kinase regulatory subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: P27986
Assay: Enzyme Assay: The test uses a lucifeurerin/luciferase system to measure the concentration of ATP and its consumption during the enzymatic reaction. The test is performed in 96-well format (Corning/Costar 96 black flat-bottomed half-wells plate, ref. 3694) in a total volume of 30 μl. To 1 μl of inhibitor in 100% DMSO are added (final concentrations) 50 μM of the substrate PIP2 ((L-α-phosphatidyl-D-myoinositol 4,5-bisphosphate, Echelon 117P-4516-0500), 2 μM of ATP and 1.7 μg/ml of PI3Kα, (p110α/p85α, Invitrogen PV4788) in a buffer of Tris/HCl 50 mM pH 7.5, EGTA 1 mM, MgCl2 10 mM, Chaps 0.03%, 1 mM DTT). After 90 minutes, the reaction is quenched by adding 20 μl/well of KinaseGlo reagent (Promega V6713). After 10 minutes in the dark, the luminescence is read on the PHERAStar microplate reader (reading at 0.8 sec/well).
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 602.7, ALogP 3.68, HBA 10, HBD 2, PSA 135.97, QED 0.45
Compound (SMILES): Cc1cc(=O)oc2c3c(ccc12)O[C@H](c1cc(F)c(F)cc1F)[C@@H](N)C3
InChIKey: MXZDPLKXVPVWMV-HNAYVOBHSA-N
Target: Dipeptidyl peptidase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P27487
Assay: Inhibition of DPP4 (unknown origin) expressed in Sf9 cells using Gly-Pro-AMC substrate
Measurement: IC50 = 165 nM (pChEMBL 6.78000020980835)
Descriptors: MW 361.32, ALogP 3.52, HBA 4, HBD 1, PSA 65.46, QED 0.53
Compound (SMILES): Brc1cnc(Nc2ccc(N3CCOCC3)nc2)nc1Nc1cc(C2CC2)n[nH]1
InChIKey: KQBFWLNWRULTJO-UHFFFAOYSA-N
Target: Insulin-like growth factor 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P08069
Assay: Inhibition of human IGF1R kinase domain (M954 to C1367 residues) tri-phosphorylated enzyme form expressed in baculovirus based expression system using poly-EY peptide incubated for 2 hrs by luciferase-luciferin coupled chemiluminescent assay
Measurement: IC50 = 50 nM (pChEMBL 7.300000190734863)
Descriptors: MW 457.34, ALogP 3.56, HBA 8, HBD 3, PSA 103.88, QED 0.52
Compound (SMILES): CCN(C)C(=O)c1cc2c(-c3cc(NS(C)(=O)=O)ccc3Oc3ccccc3)nn(C)c(=O)c2[nH]1
InChIKey: PJMZHQZVEZWPHJ-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 = 42.2 nM (pChEMBL 7.380000114440918)
Descriptors: MW 495.56, ALogP 3.18, HBA 7, HBD 2, PSA 126.39, QED 0.41
Compound (SMILES): C=C(C)c1cc(-c2cc(NC(=O)c3cccc(C(F)(F)F)c3)ccc2C)nc(N2CCOCC2)n1
InChIKey: NZQDZMBWHLVRCS-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase B-raf (SINGLE PROTEIN), Homo sapiens
UniProt: P15056
Assay: In Vitro Raf Activity: Raf and biotinylated Mek, kinase dead, were combined at 2× final concentrations in assay buffer (50 mM Tris, pH 7.5, 15 mM MgCl2, 0.01% BSA and 1 mM DTT) and dispensed 5 ml per well in assay plates (Greiner white 384 well assay plates #781207) containing 0.25 ml of 40× of a Raf kinase inhibitor test compound diluted in 100% DMSO. The plate was incubated for 60 minutes at room temperature. The Raf kinase activity reaction was started by the addition of 5 mL per well of 2×ATP diluted in assay buffer. After 3 hours (b-Raf(V600E)) or 1 hour (c-Raf). The reactions were stopped and the phosphorylated product was measured using a rabbit anti-p-MEK (Cell Signaling, #9121) antibody and the Alpha Screen IgG (ProteinA) detection Kit (PerkinElmer #6760617R), by the addition of 10 mL to the well of a mixture of the antibody (1:2000 dilution) and detection beads (1:2000 dilution of both beads) in Stop/bead buffer (25 mM EDTA, 50 mM Tris, pH 7.5, 0.01% Tween20). The additions were carried out under dark conditions to protect the detection beads from light. A lid was placed on top of the plate and incubated for 1 hour at room temperature, then the luminescence was read on a PerkinElmer Envision instrument. The concentration of each compound for 50% inhibition (IC50) was calculated by non-linear regression using XL Fit data analysis software.
Measurement: IC50 = 0.5 nM (pChEMBL 9.300000190734863)
Descriptors: MW 482.51, ALogP 5.59, HBA 5, HBD 1, PSA 67.35, QED 0.51
Compound (SMILES): CC(=O)N1CCc2[nH]nc(Nc3ccccc3)c2C1
InChIKey: ZXIJCVCJLDGJRX-UHFFFAOYSA-N
Target: Bromodomain adjacent to zinc finger domain protein 2B (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UIF8
Assay: Displacement of biotinylated ligand from recombinant His-tagged BAZ2B (unknown origin) measured after 10 mins by TR-FRET assay
Measurement: IC50 > 20000 nM (pChEMBL 4.698999881744385)
Descriptors: MW 256.31, ALogP 2.06, HBA 3, HBD 2, PSA 61.02, QED 0.86
Compound (SMILES): CC(C)c1cc(CNc2nc(NCCN3CCN(C)CC3)cc(Nc3cc(C(C)C)[nH]n3)n2)on1
InChIKey: CHIBRYDEABQTTM-UHFFFAOYSA-N
Target: Insulin-like growth factor 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P08069
Assay: Inhibition of human IGF1R kinase domain (M954 to C1367 residues) tri-phosphorylated enzyme form expressed in baculovirus based expression system using poly-EY peptide incubated for 2 hrs by luciferase-luciferin coupled chemiluminescent assay
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 482.64, ALogP 3.45, HBA 10, HBD 4, PSA 123.06, QED 0.32
Compound (SMILES): Cc1c(-c2ccc(C(F)(F)F)cc2)nnc(N2CCN(c3cnc(C(C)(C)O)cn3)[C@H](C)C2)c1C
InChIKey: CFHZZFYFOKMZNF-OAHLLOKOSA-N
Target: Protein smoothened (SINGLE PROTEIN), Mus musculus
UniProt: P56726
Assay: Inhibition of mouse recombinant Shh protein in mouse TMHh12 cells assessed as inhibition of 25 nM Smo agonist-induced hedgehog signalling response by Gli-luciferase reporter gene assay
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 486.54, ALogP 4.51, HBA 7, HBD 1, PSA 78.27, QED 0.58
Compound (SMILES): COc1ccc(CCc2nnc(-c3ccc4[nH]cnc4c3)o2)cc1Cl
InChIKey: NPFSMYIWSFRVDV-UHFFFAOYSA-N
Target: Glutaminyl-peptide cyclotransferase-like protein (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NXS2
Assay: Spectrophotometric Assay: This novel assay was used to determine the kinetic parameters for most of the QC substrates. QC activity was analyzed spectrophotometrically using a continuous method, that was derived by adapting a previous discontinuous assay (Bateman, R. C. J. 1989 J Neurosci Methods 30, 23-28) utilizing glutamate dehydrogenase as auxiliary enzyme. Samples consisted of the respective QC substrate, 0.3 mM NADH, 14 mM α-Ketoglutaric acid and 30 U/ml glutamate dehydrogenase in a final volume of 250 ul. Reactions were started by addition of QC and perused by monitoring of the decrease in absorbance at 340 nm for 8-15 min.The initial velocities were evaluated and the enzymatic activity was determined from a standard curve of ammonia under assay conditions. All samples were measured at 30° C., using either the SPECTRAFluor Plus or the Sunrise (both from TECAN) reader for microplates. Kinetic data was evaluated using GraFit software.
Measurement: IC50 = 800 nM (pChEMBL 6.099999904632568)
Descriptors: MW 354.8, ALogP 4.06, HBA 5, HBD 1, PSA 76.83, QED 0.58
Compound (SMILES): CN[C@@H](C)C(=O)N[C@@H]1C(=O)N(Cc2c(C3CC3)cnc3ccccc23)c2ccc(C#N)cc2N(C(=O)CS(C)(=O)=O)[C@H]1C
InChIKey: GIGNJHOYFVCDOD-GWZHAIQQSA-N
Target: E3 ubiquitin-protein ligase XIAP (SINGLE PROTEIN), Homo sapiens
UniProt: P98170
Assay: TR-FRET Assay: The peptide AVPIAQKSEK-(ε-biotin)-OH 1:2 TFA ("Peptide A") was identified as a substrate for the TR-FRET assay by screening the 6× Histidine-tagged 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 was identified as optimal for using in an assay. The peptide sequence was derivatized with biotin to provide AVPIAQKSEK-(ε-biotin)-OH 1:2 TFA as the substrate for the TR-FRET assay. Ten nanomolar of 6× Histidine-tagged 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 1:2 TFA, in the presence of 50 mM Tris-C1, pH 7.5, 100 mM NaCl, 1 mM dithiothreitol (DTT) and 0.1 mg/mL bovine serum albumin (BSA). Following a 45 mM 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 = 16950 nM (pChEMBL 4.769999980926514)
Descriptors: MW 602.72, ALogP 2.39, HBA 8, HBD 2, PSA 152.57, QED 0.4
Compound (SMILES): CN(C)C1(c2ccccc2)CCC2(CC1)OCCc1c2[nH]c2ccc(O)cc12
InChIKey: KFKGRKGKOJKTPF-UHFFFAOYSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Binding Assay: The receptor affinity for the human mu-opiate receptor was determined in a homogeneous batch in microtitre plates. For this, dilution series of the particular spirocyclic cyclohexane derivative to be tested were incubated in a total volume of 250 ul for 90 minutes at room temperature with a receptor membrane preparation (15-40 ug protein per 250 ul incubation batch) of CHO-K1 cells, which express the human mu-opiate receptor (RB-HOM receptor membrane preparation of NEN, Zaventem, Belgium), in the presence of 1 nmol/l of the radioactive ligand [3H]-naloxone (NET719, NEN, Zaventem, Belgium) and of 1 mg WGA-SPA beads (wheat germ agglutinin SPA beads from Amersham/Pharmacia, Freiburg, Germany). 50 mmoles/l Tris-HCl supplemented with 0.05 wt. % sodium azide and with 0.06 wt. % bovine serum albumin was used as the incubation buffer. 25 umoles/l naloxone was additionally added for determination of the non-specific binding.
Measurement: Ki = 1.1 nM (pChEMBL 8.960000038146973)
Descriptors: MW 376.5, ALogP 4.67, HBA 3, HBD 2, PSA 48.49, QED 0.68
Compound (SMILES): COC(=O)Nc1nc2cc(C3(O)c4ccccc4C(=O)N3c3ccccc3OC(F)(F)F)ccc2[nH]1
InChIKey: ITCWNDUWOGAMAG-UHFFFAOYSA-N
Target: RAF proto-oncogene serine/threonine-protein kinase (SINGLE PROTEIN), Homo sapiens
UniProt: P04049
Assay: Inhibition of c-Raf1 (unknown origin) pre-incubated for 30 mins by luciferase-luciferin-coupled chemiluminescence assay
Measurement: IC50 = 100 nM (pChEMBL 7)
Descriptors: MW 498.42, ALogP 4.49, HBA 6, HBD 3, PSA 116.78, QED 0.38
Compound (SMILES): O=C(O)CCCCCCN1C(=O)C(F)(F)C[C@@H]1/C=C/[C@@H](O)CCCCc1ccccc1
InChIKey: BBUZBTBHUCTEBZ-KUOZIZRBSA-N
Target: Prostaglandin E2 receptor EP4 subtype (SINGLE PROTEIN), Homo sapiens
UniProt: P35408
Assay: Radioligand Binding Assay: Assay Volume and Format:200 μl in 96-well plateCell membrane homogenates (20 μg protein) are incubated for 120 min at 22° C. with 0.5 nM [3H]PGE2 in the absence or presence of the test compound in a buffer containing 10 mM MES/KOH (pH 6.0), 10 mM MgCl2 and 1 mM EDTA.Nonspecific binding is determined in the presence of 10 M PGE2.Following incubation, the samples are filtered rapidly under vacuum through glass fiber filters (GF/B, Packard) presoaked with 0.3% PEI and rinsed several times with ice-cold 50 mM Tris-HCl using a 96-sample cell harvester (Unifilter, Packard). The filters are dried then counted for radioactivity in a scintillation counter (Topcount, Packard) using a scintillation cocktail (Microscint 0, Packard).
Measurement: IC50 = 4.9 nM (pChEMBL 8.3100004196167)
Descriptors: MW 437.53, ALogP 4.59, HBA 3, HBD 2, PSA 77.84, QED 0.33
Compound (SMILES): [C-]#[N+]c1c(F)ccc([C@H]2CN3CCN(C(=O)Cc4ccc(-n5cnnn5)nc4)C[C@H]3CO2)c1OC
InChIKey: CRBADEHFIMSQAZ-QFBILLFUSA-N
Target: ATP-sensitive inward rectifier potassium channel 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P48048
Assay: Electrophysiology Assay: Block of Kir1.1 (ROMK1) currents was examined by whole cell voltage clamp (Hamill et. al. Pfluegers Archives 391:85-100 (1981)) using the IonWorks Quattro automated electrophysiology platform (Molecular Devices, Sunnyvale, Calif.). Chinese hamster ovary cells stably expressing Kir1.1 channels were maintained in T-75 flasks in cell culture media in a humidified 10% CO2 incubator at 37° C. Prior to an experiment, Kir1.1 expression was induced by overnight incubation with 1 mM sodium butyrate. On the day of the experiment, cells were dissociated with 2.5 mL of Versene (Invitrogen 15040-066) for approximately 6 min at 37° C. and suspended in 10 mL of bath solution containing (in mM): 150 NaCl, 10 KCl, 2.7 CaCl2, 0.5 MgCl2, 5 HEPES, pH 7.4. After centrifugation, the cell pellet was resuspended in approximately 4.0 mL of bath solution and placed in the IonWorks instrument. The intracellular solution consisted of (in mM): 80 K gluconate, 40 KCl, 20 KF, 3.2 MgCl2, 3 EGTA, 5 Hepes, pH 7.4. Ele
Measurement: IC50 = 70 nM (pChEMBL 7.159999847412109)
Descriptors: MW 478.49, ALogP 1.58, HBA 9, HBD 0, PSA 102.86, QED 0.51
Compound (SMILES): CN(Cc1ccccc1)C1CCN(C(=O)Cn2cc(NC(=O)c3cnn4cccnc34)c(-c3cc(Cl)ccc3OC(F)F)n2)CC1
InChIKey: PYAAEZZTNYKZJN-UHFFFAOYSA-N
Target: Tyrosine-protein kinase JAK2 (SINGLE PROTEIN), Homo sapiens
UniProt: O60674
Assay: JAK Enzyme Assay: The activity of the isolated recombinant JAK1 and JAK2 kinase domain was measured by monitoring phosphorylation of a peptide derived from JAK3 (Val-Ala-Leu-Val-Asp-Gly-Tyr-Phe-Arg-Leu-Thr-Thr, fluorescently labeled on the N-terminus with 5-carboxyfluorescein) using the Caliper LabChip® technology (Caliper Life Sciences, Hopkinton, Mass.). To determine inhibition constants (Ki), compounds were diluted serially in DMSO and added to 50 μL kinase reactions containing purified enzyme (1.5 nM JAK1, or 0.2 nM JAK2), 100 mM HEPES buffer (pH 7.2), 0.015% Brij-35, 1.5 μM peptide substrate, ATP (25 μM), 10 mM MgCl2, 4 mM DTT at a final DMSO concentration of 2%. Reactions were incubated at 22° C. in 384-well polypropylene microtiter plates for 30 minutes and then stopped by addition of 25 μL of an EDTA containing solution (100 mM HEPES buffer (pH 7.2), 0.015% Brij-35, 150 mM EDTA), resulting in a final EDTA concentration of 50 mM. After termination of the kinase reaction, the proportion of phosphorylated product was determined as a fraction of total peptide substrate using the Caliper LabChip® 3000 according to the manufacturer's specifications.
Measurement: Ki = 1.81 nM (pChEMBL 8.739999771118164)
Descriptors: MW 649.1, ALogP 5.22, HBA 9, HBD 1, PSA 109.89, QED 0.22
Compound (SMILES): Cc1cccc(-c2ocnc2C(=O)N2CC[C@H]2c2nc(-c3ccccc3OC(F)(F)F)no2)c1
InChIKey: NYGUAMUCEKKQLZ-INIZCTEOSA-N
Target: Orexin receptor type 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O43614
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 = 305 nM (pChEMBL 6.519999980926514)
Descriptors: MW 470.41, ALogP 5.19, HBA 7, HBD 0, PSA 94.49, QED 0.4
Compound (SMILES): CC(C)(c1cc(O)c(-c2cc(Cl)cc(Cl)c2)c(O)c1)c1cccs1
InChIKey: IMPIXGVTYVBLPL-UHFFFAOYSA-N
Target: Cannabinoid receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P34972
Assay: CB2 Receptor Binding Protocol: 15.3 ug of membranes (20 ul of 1:20 dilution in incubation buffer) was incubated with 5 ul of drug solution (10E-4M to 10E-12M) and 5ul of 5.4 nM [3H]CP55,940 in a total volume of 200 ul for 90 mins at 30 C. Non-specific binding was determined using 10 uM WIN55,212-2 (Ki=4.4 nM). The membranes were filtered and the filters washed 7x with 0.2 ml ice-cold incubation buffer and allowed to air dry under vacuum.
Measurement: Ki = 5.69 nM (pChEMBL 8.239999771118164)
Descriptors: MW 379.31, ALogP 6.46, HBA 3, HBD 2, PSA 40.46, QED 0.55
Compound (SMILES): COCCN1CC(C)(C)Oc2nc(N3CCOC[C@@H]3C)nc(-c3ccc(NC(=O)Nc4ccc(F)cc4F)cc3)c2C1=O
InChIKey: TYODHKNGHJRSFC-SFHVURJKSA-N
Target: Phosphatidylinositol 3-kinase regulatory subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: P27986
Assay: Enzyme Assay: The test uses a lucifeurerin/luciferase system to measure the concentration of ATP and its consumption during the enzymatic reaction. The test is performed in 96-well format (Corning/Costar 96 black flat-bottomed half-wells plate, ref. 3694) in a total volume of 30 μl. To 1 μl of inhibitor in 100% DMSO are added (final concentrations) 50 μM of the substrate PIP2 ((L-α-phosphatidyl-D-myoinositol 4,5-bisphosphate, Echelon 117P-4516-0500), 2 μM of ATP and 1.7 μg/ml of PI3Kα, (p110α/p85α, Invitrogen PV4788) in a buffer of Tris/HCl 50 mM pH 7.5, EGTA 1 mM, MgCl2 10 mM, Chaps 0.03%, 1 mM DTT). After 90 minutes, the reaction is quenched by adding 20 μl/well of KinaseGlo reagent (Promega V6713). After 10 minutes in the dark, the luminescence is read on the PHERAStar microplate reader (reading at 0.8 sec/well).
Measurement: IC50 = 2330 nM (pChEMBL 5.630000114440918)
Descriptors: MW 596.63, ALogP 4.55, HBA 8, HBD 2, PSA 118.15, QED 0.41
Compound (SMILES): Cc1c(C2(N(C)C)CCC(c3ccccc3)(N(C)C)CC2)[nH]c2ccccc12
InChIKey: VNYIXWZEXZEHQB-UHFFFAOYSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Binding Assay: The affinity to the human μ-opiate receptor was determined in a homogeneous preparation in microtiter plates. For this, dilution series of the respective compound to be tested were incubated for 90 minutes at room temperature with a receptor membrane preparation (15-40 mg of protein per 250 μl of incubation batch) of CHO-K 1 cells, which express the human μ-opiate receptor (RB-HOM receptor membrane preparation of NEN, Zaventem, Belgium), in the presence of 1 nmol/l of the radioactive ligand [3H'-naloxone (NET719, NEN, Zaventem, Belgium) and of 1 mg WGA-SPA beads (wheat germ agglutinin SPA beads from Amersham/Pharmacia, Freiburg, Germany) in a total volume of 250 μl. 50 mmol/l of tris-HCl supplemented by 0.05% by wt. of sodium azide and 0.06% by wt. of bovine serum albumin was used as incubation buffer. 25 μmol/l of naloxone were additionally added to determine the non-specific bond. After the ninety-minute incubation time had ended, the microtiter plates were centrifuged for 20 minutes at 1000 g and the radioactivity measured in a β-counter (Microbeta-Trilux, PerkinElmer Wallac, Freiburg, Germany).
Measurement: Ki = 410 nM (pChEMBL 6.389999866485596)
Descriptors: MW 375.56, ALogP 5.26, HBA 2, HBD 1, PSA 22.27, QED 0.67
Compound (SMILES): CCCCNC(=O)NS(=O)(=O)c1ccc(NC(=O)Cn2c(=O)c(C)nc3ccccc32)cc1
InChIKey: IOJDBQXYEIGVNQ-UHFFFAOYSA-N
Target: Peroxisome proliferator-activated receptor gamma (SINGLE PROTEIN), Homo sapiens
UniProt: P37231
Assay: Displacement of fluormone-PPARgamma green from GST-tagged PPARgamma-LBD (unknown origin) by fluorescence polarization assay
Measurement: IC50 = 4000 nM (pChEMBL 5.400000095367432)
Descriptors: MW 471.54, ALogP 2.13, HBA 7, HBD 3, PSA 139.26, QED 0.43
Compound (SMILES): Cn1cncc1C(O)(c1ccc(C(F)(F)F)nc1)c1ccc2nc(N3CCC3)c(Oc3ccc(C#N)cc3)c(Cl)c2c1
InChIKey: HGMJOSNOVDDGAZ-UHFFFAOYSA-N
Target: Nuclear receptor ROR-gamma (SINGLE PROTEIN), Homo sapiens
UniProt: P51449
Assay: ThermoFluor® Assay: ThermoFluor® experiments were carried out using instruments owned by Janssen Research and Discovery, L.L.C. through its acquisition of 3-Dimensional Pharmaceuticals, Inc. 1,8-ANS (Invitrogen) was used as a fluorescent dye. Protein and compound solutions are dispensed into black 384-well polypropylene PCR microplates (Abgene) and overlayed with silicone oil (1 μL, Fluka, type DC 200) to prevent evaporation. Bar-coded assay plates are robotically loaded onto a thermostatically controlled PCR-type thermal block and then heated at a typical ramp-rate of 1 °C./min for all experiments. Fluorescence was measured by continuous illumination with UV light (Hamamatsu LC6) supplied via fiber optic and filtered through a band-pass filter (380-400 nm; >60D cutoff). Fluorescence emission of the entire 384-well plate was detected by measuring light intensity using a CCD camera (Sensys, Roper Scientific) filtered to detect 500±25 nm, resulting in simultaneous and independent readings of all 384 wells. Images were collected at each temperature, and the sum of the pixel intensity in a given area of the assay plate was recorded versus temperature. Reference wells contained RORγt without compounds, and the assay conditions were as follows: 0.065 mg/mL RORγt, 60 μM 1,8-ANS, 100 mM Hepes, pH 7.0, 10 mM NaCl, 2.5 mM GSH, 0.002% Tween-20. Project compounds were arranged in a pre-dosed mother plate (Greiner Bio-one) wherein compounds are serially diluted in 100% DMSO by 1:2 from a high concentration of 10 mM over 12 columns within a series (column 12 is a reference well containing DMSO, no compound). The compounds were robotically dispensed directly into assay plates (1x=46 mL) using a Hummingbird capillary liquid handling instrument (Digilab). Following compound dispense, protein and dye in buffer was added to achieve the final assay volume of 3 μL, followed by 1 μL of silicone oil.
Measurement: Kd = 14 nM (pChEMBL 7.849999904632568)
Descriptors: MW 590.99, ALogP 6.19, HBA 8, HBD 1, PSA 100.09, QED 0.25
Compound (SMILES): C=CC(=O)Nc1cccc(-n2c(NC(=O)c3cccc(C(F)(F)F)c3)nc3cc(C)ccc32)c1
InChIKey: PSCDDKKRCVRBLR-UHFFFAOYSA-N
Target: Epidermal growth factor receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P00533
Assay: Inhibition of N-terminal 6x-HIS-tagged human recombinant EGFR (696 to 1022 residues) L858R/T790M mutant expressed in Sf9 cells pre-incubated for 90 mins followed by 1 mM ATP addition by HTRF assay
Measurement: IC50 = 4 nM (pChEMBL 8.399999618530273)
Descriptors: MW 464.45, ALogP 5.73, HBA 4, HBD 2, PSA 76.02, QED 0.37
Compound (SMILES): Cn1cc(-c2cc3c(cn2)cnn3-c2cccc(N3CC(O)(CN)C3)n2)cn1
InChIKey: VAVQNJHKKJAMJE-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase pim-2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9P1W9
Assay: Kinase Binding Assay: PIM-1, -2, and -3 enzymes were generated as fusion proteins expressed in bacteria and purified by IMAC column chromatography (Sun, X., Chiu, J. F., and He, Q. Y. (2005) Expert Rev. Proteomics, 2:649-657). A fluorescent-labeled Pim-specific peptide substrate, was custom synthesized by American Peptide Company (Sunnyvale, Calif.). Reaction Buffer contained 10 mM HEPES, pH 7.2, 10 mM MgCl2, 0.01% Tween 20, 2 mM DTT. Termination Buffer contained 190 mM HEPES, pH 7.2, 0.015% Brij-35, 0.2% Coating Reagent 3 (Caliper Life Sciences, Hopkinton, Mass.), 20 mM EDTA. Separation Buffer contained 100 mM HEPES, pH 7.2, 0.015% Brij-35, 0.1% Coating Reagent 3, 1:200 Coating Reagent 8 (Caliper Life Sciences, Hopkinton, Mass.), 10 mM EDTA and 5% DMSO.PIM reactions were carried out in a final volume of 10 uL per well in a 384-well plate. A standard enzymatic reaction, initiated by the addition of 5 uL 2Ã¿Â¿ATP and test compound to 5 uL of 2x enzyme and FAM-peptide, contained 20 uM PIM1, 50 uM PIM2, or 55 uM PIM3, 1 uM FAM-peptide, and 10 uM ATP, in Reaction Buffer. After 90 minutes of incubation at room temperature, the phosphorylation reaction was stopped by the addition of 10 uL Termination Buffer. The product and substrate in each independent reaction were separated on a 12-sipper microfluidic chip (Caliper Life Sciences, Hopkinton, Mass.) run on a Caliper LC3000 (Caliper Life Sciences, Hopkinton, Mass.). The separation of product and substrate was optimized by choosing voltages and pressure using Caliper's Optimizer software (Hopkinton, Mass.). The separation conditions used a downstream voltage of -500V, an upstream voltage of -2150V, and a screening pressure of -1.2 psi. The product and substrate fluorophore were excited at 488 nm and detected at 530 nm. Substrate conversion was calculated from the electropherogram using HTS Well Analyzer software (Caliper Life Sciences, Hopkinton, Mass.). Ki values for the test compound were calculated.
Measurement: Ki = 20.4 nM (pChEMBL 7.690000057220459)
Descriptors: MW 376.42, ALogP 0.73, HBA 9, HBD 2, PSA 110.91, QED 0.54
Compound (SMILES): CCCCN(CCCC)C(=O)c1cc(C)n(-c2ccc(N[S+]([O-])c3ccc(Br)cc3CC)cc2C(=O)N2Cc3ccccc3C[C@H]2CO)n1
InChIKey: GZHKRLLQDKUZLK-PGYBXFQOSA-N
Target: Apoptosis regulator Bcl-2 (SINGLE PROTEIN), Homo sapiens
UniProt: P10415
Assay: Surface plasmon resonance (SPR): Methods for Determining IC50s.The present method includes utility of a Surface plasmon resonance (SPR)- based biosensor (Biacore GE Healthcare, Uppsala, Sweden) to characterize BCL-2 inhibitors.Biacore utilizes the phenomenon of surface plasmon resonance (SPR) to detect and measure binding interactions. In a typical Biacore experiment, one of the interacting molecules (ligand) is immobilized on a flexible dextran matrix while the interacting partner (analyte) is allowed to flow across that surface. A binding interaction results in an increase in mass on the sensor surface and a corresponding direct change in the refractive index of the medium in the vicinity of the sensor surface. Changes in refractive index or signal are recorded in resonance units (R.U.) Signal changes due to association and dissociation of complexes are monitored in a non-invasive manner, continuously and in real-time, the results of which are reported in the form of a sensorgram.
Measurement: IC50 = 1832.24 nM (pChEMBL 5.739999771118164)
Descriptors: MW 748.79, ALogP 7.24, HBA 7, HBD 2, PSA 113.76, QED 0.13
Compound (SMILES): CCc1cccc(-c2ccnc3[nH]cc(C#N)c23)c1
InChIKey: KBHSVDKRLSYHJD-UHFFFAOYSA-N
Target: Leucine-rich repeat serine/threonine-protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q5S007
Assay: Homogeneous Time Resolved-fluorescence Resonance Energy Transfer (TR-FRET) Assay: LRRK2 kinase activity is measured using a LanthaScreen kinase activity assay available from Invitrogen (Life Technologies Corporation). The assay is a homogeneous time resolved-fluorescence resonance energy transfer (TR-FRET) assay that measures phosphorylation of a fluorescein-labelled peptide substrate (fluorescein-LRRKtide, fluorescein-GAGRLGRDKYKTLRQIRQ) (SEQ ID NO 1) as a result of LRRK2 kinase activity. The phosphorylated peptide is recognized by a terbium-labelled phospho-specific anti-LRRKtide antibody and, subsequently, the phosphorylated LRRKtide can be quantified by the extent of TR-FRET between the terbium donor and fluorescein acceptor.The LRRK2 kinase is obtained from Invitrogen (Life Technologies Corporation) and comprises residues 970 to 2527 of the full length human wild-type LRRK2 kinase or a similar sequence with the G2019S mutation. As discussed above, this mutation increases the kinase activity relative to the wild-type. The kinase reactions are performed in a 20 uL volume in 384-well plates. The kinase reaction buffer consists of 50 mM Tris pH 8.5, 0.01% BRIJ-35, 10 mM MgCl2, 1 mM EGTA, and 2 mM DTT.Â  In the assay, 1 nM LRRK2 WT or 250 pM LRRK2 G2019S kinase is incubated with the test compound (typically at 0 to 30 uM) for 30 minutes before the kinase reaction is initiated by addition of 1.3 mM ATP and 0.4 uM fluorescein-LRRKtide. The reaction mixture (20 ul total volume) is incubated for 2 hours at 30° C. before the reaction is terminated by addition of 10 mM EDTA and 1 nM terbium-labelled anti-phospho-LRRKtide antibody (final volume 20 ul). The mixture is further incubated for 30 minutes at RT. TR-FRET is measured by excitation of the terbium-donor with 340 nm light and subsequent (delay time 100 us) measurement of terbium and fluorescein emission at 495 nm and 520 nm, respectively, over a time window of 1000 us. The measurement is repeated 10 times for fluorescein and 10 times for terbium emission with a 2000 us time window between repeats. TR-FRET measurements are performed on a Biomek Synergy plate. The TR-FRET signal is calculated as the emission-ratio at 520 nm over 495 nm.
Measurement: IC50 = 266 nM (pChEMBL 6.579999923706055)
Descriptors: MW 247.3, ALogP 3.66, HBA 2, HBD 1, PSA 52.47, QED 0.75
Compound (SMILES): CC(C)Oc1cc2c(Nc3ccc(Cl)c(Cl)c3)ncnc2cc1OCC1CNCCO1
InChIKey: VKZGMXBQSCMMFS-UHFFFAOYSA-N
Target: Ephrin type-A receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P29317
Assay: Inhibition of recombinant human N-terminal His6-tagged EphA2 (N598 to R890 residues) expressed in baculovirus using poly-EY as substrate after 180 mins by luciferase coupled chemiluminescence assay
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 463.37, ALogP 4.83, HBA 7, HBD 2, PSA 77.53, QED 0.52
Compound (SMILES): O=C(NS(=O)(=O)c1ccc(N2C(=O)C3CCC3C2=O)cc1)c1ccc(N2CCN(Cc3ccccc3-c3ccc(Cl)cc3)CC2)cc1Oc1ccccc1
InChIKey: LZYIVCJAVPIQSY-UHFFFAOYSA-N
Target: Bcl-2-like protein 1 (SINGLE PROTEIN), Mus musculus
UniProt: Q64373
Assay: Time Resolved-Fluorescence Resonance Energy Transfer (TR-FRET) Assay: The inhibition constant (Ki) is the dissociation constant of an enzyme-inhibitor complex or a protein/small molecule complex, wherein the small molecule is inhibiting binding of one protein to another protein or peptide. Where the Ki for a compound is represented as > (greater than) a certain numerical value, it is intended to mean that the binding affinity value (e.g., for Bcl-XL) is greater than the limits of detection of the assay used. Where the binding selectivity ratio for a compound is represented as > (greater than) a certain numerical value, it is intended to mean that the selectivity of a particular compound for Bcl-2 over Bcl-XL is at least as great as the number indicated. Where the Ki for a compound is represented as < (less than) a certain numerical value, it is intended to mean that the binding affinity value (e.g., for Bcl-2) is lower than the limit of detection of the assay used. Inhibition constants were determined using Wang's equation (Wang Z-X).
Measurement: Ki > 660 nM (pChEMBL 6.179999828338623)
Descriptors: MW 761.3, ALogP 7.14, HBA 8, HBD 1, PSA 116.33, QED 0.15
Compound (SMILES): Cc1cc(C(F)(F)F)ccc1Nc1nc(OC2CCOCC2)nc2c1CCN(c1ncccc1C(F)(F)F)CC2
InChIKey: OMUQPDRXMAAWHR-UHFFFAOYSA-N
Target: Transient receptor potential cation channel subfamily V member 1 (SINGLE PROTEIN), Rattus norvegicus
UniProt: O35433
Assay: Functional Assay: The assay was performed as described below, using HEK293 cells transfected with rat TRPV1 (rTRPV1/HEK293). These cells had a geneticin selection marker and were grown in Dulbecco's Modified Eagle Medium (DMEM, Gibco BRL) supplemented with 10% fetal bovine serum, penicillin/streptomycin (50 units/mL), and 500 μg/mL geneticin 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 = 450 nM (pChEMBL 6.349999904632568)
Descriptors: MW 567.53, ALogP 6.12, HBA 7, HBD 1, PSA 72.4, QED 0.37
Compound (SMILES): CO[C@@H]1CC[C@@H](CC(=O)N[C@H]2CC[C@H](CCN3CCC(c4noc5cc(Cl)ccc45)CC3)CC2)OC1
InChIKey: RDWXEESICWYGFN-ZNEWLNCYSA-N
Target: D(3) dopamine receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35462
Assay: Radioligand Binding Assay: Aliquots of membrane preparations were thawed at RT, resuspended in assay buffer (D2, D3: 50 mM Tris-HCl, 120 mM NaCl, 5 mM MgCl2, 1 mM EDTA, 5 mM KCl, 1.5 mM CaCl2, pH=7.4; 5-HT2A: 50 mM Tris-HCl, 10 mM MgCl2, 1 mM EGTA, pH=7.4), homogenized with a Polytron for 20-30 sec at 12,000 rpm and adjusted to a final concentration of approximately 7.5 ug protein/well (D2, D3) and 15 ug protein/well (5-HT2A), respectively.The binding affinity (Ki) of the compounds was determined using radioligand binding. Membranes were incubated in a total volume of 200 ul with a fixed concentration of radioligand (final concentration approximately 0.7 nM [3H]-spiperone for D2, 0.5 nM [3H]-spiperone for D3, and 1.1 nM [3H]-ketanserin for 5-HT2A) and ten concentrations of test compound in ranging between 10 uM-0.1 nM for 1 h at RT. At the end of the incubation, the reaction mixtures were filtered on to unifilter 96-well white microplates with bonded GF/C filters.
Measurement: Ki = 11.58 nM (pChEMBL 7.940000057220459)
Descriptors: MW 518.1, ALogP 5.31, HBA 6, HBD 1, PSA 76.83, QED 0.51
Compound (SMILES): COc1cn(C(CC(F)(F)F)C(=O)Nc2ccc(C(=O)O)cc2)c(=O)cc1-c1cc(Cl)ccc1C#N
InChIKey: JTNKIBBMWHFHLA-UHFFFAOYSA-N
Target: Plasma kallikrein (SINGLE PROTEIN), Homo sapiens
UniProt: P03952
Assay: Inhibition Assay: Test substances are dissolved in dimethyl sulphoxide and serially diluted in dimethyl sulphoxide (3000 μM to 0.0078 μM; resulting final concentrations in the test: 50 μM to 0.00013 μM). In each case 1 μl of the diluted substance solutions are placed into the wells of white microtitre plates from Greiner (384 wells). 20 μl of assay buffer (50 mM Tris/HCl pH 7.4; 100 mM sodium chloride solution; 5 mM of calcium chloride solution; 0.1% of bovine serum albumin) and 20 μl of plasma kallikrein from Kordia (0.6 nM in assay buffer) are then added successively. After 15 min of incubation, the enzyme reaction is started by addition of 20 μl of the substrate H-Pro-Phe-Arg-AMC dissolved in assay buffer (10 μl in assay buffer) from Bachem, the mixture is incubated at room temperature (22° C.) for 30 min and fluorescence is then measured (excitation: 360 nm, emission: 460 nm).
Measurement: IC50 = 220 nM (pChEMBL 6.659999847412109)
Descriptors: MW 519.86, ALogP 4.88, HBA 6, HBD 2, PSA 121.42, QED 0.46
Compound (SMILES): O=C1N[C@H](c2cncc(C#CC3CC(F)(F)C3)c2)[C@@H](c2ccc(F)cc2)O1
InChIKey: IENBDACSGWWOEM-QZTJIDSGSA-N
Target: Metabotropic glutamate receptor 5 (SINGLE PROTEIN), Homo sapiens
UniProt: P41594
Assay: Positive allosteric modulation activity at human mGluR5A expressed in HEK293(ZF) cells co-expressing rat glutamate-aspartate transporter assessed as increase in L-glutamate-induced Ca2+ flux preincubated for 60 mins followed by L-glutamate addition measured for 100 sec by calcium-4 dye based FLIPR assay
Measurement: EC50 = 35 nM (pChEMBL 7.460000038146973)
Descriptors: MW 372.35, ALogP 4.14, HBA 3, HBD 1, PSA 51.22, QED 0.81
Compound (SMILES): Cc1ccc(NC(=O)c2cccc(C(F)(F)F)c2)cc1-c1cc(N2CCCOCC2)nc(N2CCOCC2)n1
InChIKey: WQNJLMVKMKGYHJ-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase B-raf (SINGLE PROTEIN), Homo sapiens
UniProt: P15056
Assay: In Vitro Enzyme Assay: Final assay conditions were 4 pM cRaf, 3 uM ATP, 10 nM biotin tagged MEK1 kinase dead protein substrate. Reactions were performed in Greiner384 well plates, catalog #784075. Reaction buffer was 50 mM Tris, pH 7.5, 50 mM NaCl, 10 mM MgCl2, 0.01% Tween-20, 0.05% BSA and 1 mM DTT. 5 ul of 2×cRaf plus MEK1 were dispensed into plates containing 0.25 ul of compound in 100% DMSO and incubated at room temperature for 30 minutes. Reactions were started by addition of 5 ul of 2×ATP. Reactions were run for two hours and terminated by addition of 10 ul of 2× antibody and Alphascreen bead mixture in Stop Buffer. Stop Buffer was 50 mM Tris, pH 7.5, 0.005% Tween-20, 25 mM EDTA.
Measurement: IC50 = 1.131 nM (pChEMBL 8.949999809265137)
Descriptors: MW 541.57, ALogP 4.79, HBA 7, HBD 1, PSA 79.82, QED 0.5
Compound (SMILES): CCCCCC(=O)c1ccc([C@H]2[C@H](O)CC(=O)[C@@H]2C/C=C\CCCC(=O)O)cc1
InChIKey: GRYOARZFMKMIDL-GNYXDQBKSA-N
Target: Prostaglandin E2 receptor EP2 subtype (SINGLE PROTEIN), Homo sapiens
UniProt: P43116
Assay: Displacement of [3H]PGE2 from from human EP2 receptor expressed in HEK293 cells at pH 7.3 membranes incubated for 60 mins
Measurement: Ki = 111 nM (pChEMBL 6.960000038146973)
Descriptors: MW 400.52, ALogP 4.68, HBA 4, HBD 2, PSA 91.67, QED 0.3
Compound (SMILES): O=C1CCc2c(Oc3ccc4c(c3)C3C(C4)C3c3nc4ccccc4s3)ccnc2N1
InChIKey: IXJJQTYDLOSUBW-UHFFFAOYSA-N
Target: RAF proto-oncogene serine/threonine-protein kinase (SINGLE PROTEIN), Homo sapiens
UniProt: P04049
Assay: Raf IC50 Assay: Compounds disclosed herein were tested against B-Raf (V600E) (PV3849, from Invitrogen) or C-Raf (Y340D/Y341D) (PV3805, from Invitrogen) in a time-resolved fluorescence energy transfer assay. The assay was carried out in reactions (10 uL) containing 0.0625 nM B-Raf or 0.5 nM C-Raf, 25 mM Tris pH7.4, 10 mM MgCl2, 0.5 mM EGTA, 0.5 mM Na3BO4, 5 mM beta-glycerophosphate, 0.01% Triton X-100, 2.5 mM DTT, 0.1% BSA, 0.1 mM ATP, 13.7 nM GST-tagged MEK1 (Full-length protein with K97R mutation, recombinant protein purified from bacterial expression system) and 0-5 uM compounds disclosed herein (final concentration of 1% DMSO). The enzyme was incubated with the compounds at room temperature for 60 minutes and the reactions were initiated by the addition of ATP and GST-MEK1. After incubating at room temperature for 60 minutes, an equal volume of stop buffer containing 25 mM Tris pH7.4, 400 mM KF, 50 mM EDTA, 0.01% BSA, 0.01% Triton X-100, 1 test of Eu3+ Cryptate-conjugated rabbit polyclonal antibody anti-Phospho MEK1/2 (Ser217/221) and 1 test of d2-conjugated mouse monoclonal antibody anti-glutathione S-transferase was added to stop the reactions. Plates were sealed and incubated at room temperature for 2 hours, and then the TR-FRET signals were read on BMG PHERAstar FS instrument. The IC50 for each compound was calculated by non linear regression by Graphpad Prism software.
Measurement: IC50 = 5.5 nM (pChEMBL 8.260000228881836)
Descriptors: MW 425.51, ALogP 5.42, HBA 5, HBD 1, PSA 64.11, QED 0.48
Compound (SMILES): COc1cccc(CN2CCC(CC#N)(n3cc(C(N)=O)c(Nc4ccnc(F)c4)n3)CC2)c1
InChIKey: UUOOHPWNLVSOPK-UHFFFAOYSA-N
Target: Tyrosine-protein kinase JAK2 (SINGLE PROTEIN), Homo sapiens
UniProt: O60674
Assay: HTRF Biochemical Assay: The reactions employed a common peptide substrate, LCB-EQEDEPEGDYFEWLW-NH2 (in-house). The basic assay protocol is as follows: First, 250 nL of diluted compounds in DMSO were dispensed into the wells of a dry 384-well Black plate (Greiner #781076) using a Labcyte Echo 555 acoustic dispenser. Subsequent reagent additions employed an Agilent Bravo. Next, 18 uL of 1.11x enzyme and 1.11x substrate in 1x assay buffer (Invitrogen kinase buffer # PV3189, 2 mM DTT, 0.05% BSA) were added to the wells and shaken and then preincubated for 30 minutes at room temperature to allow compound binding to equilibrate. After equilibration, 2 uL of 10xATP in 1x assay buffer was added to initiate the kinase reaction and the plates were shaken and then incubated at room temperature for 120 minutes. At the end of the incubation, 20 uL of 2x stop buffer (streptavidin-Dylight 650 (Thermo #84547B/100 mL), Eu-tagged pY20 antibody (Perkin Elmer #AD0067), EDTA, HEPES, and Triton) was added to quench the reaction.
Measurement: IC50 = 20 nM (pChEMBL 7.699999809265137)
Descriptors: MW 463.52, ALogP 3.17, HBA 8, HBD 2, PSA 122.09, QED 0.49
Compound (SMILES): COc1ccc(-c2cccc(Cl)c2C)cc1-n1c(=O)ccc2cc(S(=O)(=O)Nc3ccon3)ccc21
InChIKey: XHPSZYQTDGMKKI-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: Nav1.7 In Vitro PX Assay: HEK 293 cells stably transfected with human Nav1.7 were recorded in whole cell voltage clamp mode with the PatchXpress automated electrophysiology system (Molecular Devices, LLC, Sunnyvale, Calif.). Compound effects were measured on a partially inactivated state of the sodium channel. Cells were clamped to a holding potential yielding 20 to 50% inactivation. To elicit sodium current, channels were activated by pulsing to -10 mV for 20 msec. This voltage protocol was repeated at a rate of 0.1 Hz throughout the experiment. A single concentration of test compound was applied to cells for a duration of 3 minutes.
Measurement: IC50 = 1842 nM (pChEMBL 5.739999771118164)
Descriptors: MW 521.98, ALogP 5.42, HBA 7, HBD 1, PSA 103.43, QED 0.32