lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): N#CCC1(n2cc(-c3ncnc4[nH]ccc34)cn2)CN(C2CCN(C(=O)C3CCCCCC3)CC2)C1
InChIKey: QIESCFKEOOZXCO-UHFFFAOYSA-N
Target: Tyrosine-protein kinase JAK2 (SINGLE PROTEIN), Homo sapiens
UniProt: O60674
Assay: In Vitro JAK Kinase Assay: Compounds herein were tested for inhibitory activity of JAK targets according to the following in vitro assay described in Park et al., Analytical Biochemistry 1999, 269, 94-104. The catalytic domains of human JAK1 (a.a. 837-1142), Jak2 (a.a. 828-1132) and Jak3 (a.a. 781-1124) with an N-terminal His tag were expressed using baculovirus in insect cells and purified. The catalytic activity of JAK1, JAK2 or JAK3 was assayed by measuring the phosphorylation of a biotinylated peptide. The phosphorylated peptide was detected by homogenous time resolved fluorescence (HTRF). IC50s of compounds were measured for each kinase in the 40 microL reactions that contain the enzyme, ATP and 500 nM peptide in 50 mM Tris (pH 7.8) buffer with 100 mM NaCl, 5 mM DTT, and 0.1 mg/mL (0.01%) BSA. For the 1 mM IC50 measurements, ATP concentration in the reactions was 1 mM. Reactions were carried out at room temperature for 1 hr and then stopped with 20 μL 45 mM EDTA, 300 nM SA-APC, 6 nM Eu-Py20 in assay buffer (Perkin Elmer, Boston, Mass.). Binding to the Europium labeled antibody took place for 40 minutes and HTRF signal was measured on a Fusion plate reader (Perkin Elmer, Boston, Mass.).
Measurement: IC50 = 12.5 nM (pChEMBL 7.900000095367432)
Descriptors: MW 486.62, ALogP 3.71, HBA 7, HBD 1, PSA 106.73, QED 0.55
Compound (SMILES): CN[C@@H](C)C(=O)N[C@H](C(=O)N1c2ccccc2C[C@H]1C(N)=O)C(C)C
InChIKey: DQGJEZPERGYKQV-CQDKDKBSSA-N
Target: E3 ubiquitin-protein ligase XIAP (SINGLE PROTEIN), Homo sapiens
UniProt: P98170
Assay: 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-Cl, pH 7.5, 100 mM NaCl, 1 mM dithiothreitol (DTT) and 0.1 mg/mL 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 > 54800 nM (pChEMBL 4.261000156402588)
Descriptors: MW 346.43, ALogP 0.18, HBA 4, HBD 3, PSA 104.53, QED 0.68
Compound (SMILES): COc1cc(N2CCN(C(C)C)CC2)ccc1Nc1nccc(-c2c(-c3ccc(OC)c(C(=O)Nc4c(F)cccc4F)c3)nc3ccccn23)n1
InChIKey: TVWAYYKSTVUYBC-UHFFFAOYSA-N
Target: Insulin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P06213
Assay: Inhibition of human GST-rTEV-tagged insulin receptor (979 to 1382 residues) expressed in baculovirus infected insect Sf9 cells assessed as decrease in biotin-aminohexyl-AEEEEYMMMMAKKKK-NH2 phosphorylation after 1 hr by fluorometer
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 704.78, ALogP 7.28, HBA 10, HBD 2, PSA 109.15, QED 0.15
Compound (SMILES): C[C@H](Nc1nc(N)nc(N)c1C#N)c1nc2c(F)ccc(Cl)c2c(=O)n1-c1cnc(N)cn1
InChIKey: AEIAUSDERBJKPI-ZETCQYMHSA-N
Target: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform (SINGLE PROTEIN), Homo sapiens
UniProt: O00329
Assay: Time-Resolved Fluorescence Resonance Energy Transfer (TR-FRET) Assay: The activities were measured using a time-resolved fluorescence resonance energy transfer (TR-FRET) assay. TR-FRET monitored the formation of 3,4,5-inositol triphosphate molecule that competed with fluorescently labeled PIP3 for binding to the GRP-1 pleckstrin homology domain protein. An increase in phosphatidylinositide 3-phosphate product resulted in a decrease in TR-FRET signal as the labeled fluorophore was displaced from the GRP-1 protein binding site. Class I PI3K isoforms were expressed and purified as heterodimeric recombinant proteins. All assay reagents and buffers for the TR-FRET assay were purchased from Millipore. PI3K isoforms were assayed under initial rate conditions in the presence of 25 mM Hepes (pH 7.4), and 2xKm ATP (75-500 uM), 2 uM PIP2, 5% glycerol, 5 mM MgCl2, 50 mM NaCl, 0.05% (v/v) Chaps, 1 mM dithiothreitol, and 1% (v/v) DMSO at the following concentrations for each isoform: PI3Kα, PI3Kβ, and PI3Kδ between 25 and 50 uM, and PI3Kγ at 2 nM. The compounds of Table 1 and Compound X ((S)-2,4-diamino-6-((1-(5-chloro-4-oxo-3-(pyridin-3-yl)-3,4-dihydroquinazolin-2-yl)ethyl)amino)pyrimidine-5-carbonitrile) and Compound Y ((S)-2,4-diamino-6-((1-(5-chloro-4-oxo-3-(pyridin-3-yl)-3,4-dihydroquinazolin-2-yl)ethyl)amino)pyrimidine-5-carbonitrile) were added to the assay solution and incubated for 30 minutes at 25° C. The reactions were terminated with a final concentration of 10 mM EDTA, 10 nM labeled-PIP3, and 35 nM Europium labeled GRP-1 detector protein before reading TR-FRET on an Envision plate reader (Ex: 340 nm; Em: 615/665 nm; 100 us delay and 500 us read window). The results were normalized based on positive (1 uM wortmanin) and negative (DMSO) controls, and the IC50 values for PI3K α, β, δ and γ were calculated from the fit of the dose-response curves to a four-parameter equation.
Measurement: IC50 = 3.5 nM (pChEMBL 8.460000038146973)
Descriptors: MW 467.86, ALogP 1.55, HBA 12, HBD 4, PSA 200.33, QED 0.34
Compound (SMILES): CCN1CCN(C2CCN(c3ccc(Nc4nccc(-c5c(-c6cccc(C(=O)Nc7c(F)cccc7F)c6)nc6ccccn56)n4)c(OC)c3)CC2)CC1
InChIKey: YJINFOBXCOVVJO-UHFFFAOYSA-N
Target: Insulin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P06213
Assay: Inhibition of human GST-rTEV-tagged insulin receptor (979 to 1382 residues) expressed in baculovirus infected insect Sf9 cells assessed as decrease in biotin-aminohexyl-AEEEEYMMMMAKKKK-NH2 phosphorylation after 1 hr by fluorometer
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 743.86, ALogP 7.35, HBA 10, HBD 2, PSA 103.16, QED 0.15
Compound (SMILES): COc1cc(C(=O)Nc2ccc(C3CCNC3)cc2)nc2ccccc12
InChIKey: JAWUPFXIFCWYIM-UHFFFAOYSA-N
Target: Trace amine-associated receptor 1 (SINGLE PROTEIN), Rattus norvegicus
UniProt: Q923Y9
Assay: Radioligand Binding Assay: HEK-293 cells stably expressing rat TAAR1 were maintained at 37° C. and 5% CO2 in DMEM high glucose medium, containing fetal calf serum (10%, heat inactivated for 30 min at 56° C.), penicillin/streptomycin (1%), and 375 ug/ml geneticin (Gibco). Cells were released from culture flasks using trypsin/EDTA, harvested, washed twice with ice-cold PBS (without Ca2+ and Mg2+), pelleted at 1,000 rpm for 5 min at 4° C., frozen and stored at -80° C. Frozen pellets were suspended in 20 ml HEPES-NaOH (20 mM, pH 7.4) containing 10 mM EDTA and homogenized with a Polytron (PT 6000, Kinematica) at 14,000 rpm for 20 s. The homogenate was centrifuged at 48,000Ã¿g for 30 min at 4° C. Subsequently, the supernatant was removed and discarded, and the pellet resuspended in 20 ml HEPES-NaOH (20 mM, pH 7.4) containing 0.1 mM EDTA using the Polytron (20 s at 14,000 rpm). This procedure was repeated and the final pellet resuspended in HEPES-NaOH containing 0.1 mM EDTA and homogenized using the Polytron. Typically, aliquots of 2 ml membrane portions were stored at -80° C. With each new membrane batch the dissociation constant (Kd) was determined via a saturation curve. The TAAR1 radioligand 3[H]â¿¿(S)-4-[(ethyl-phenyl-amino)-methyl]-4,5-dihydro-oxazol-2-ylamine (described in WO 2008/098857) was used at a concentration equal to the calculated Kd value, that was usually around 2.3 nM, resulting in the binding of approximately 0.2% of the radioligand and a specific binding representing approximately 85% of the total binding. Nonspecific binding was defined as the amount of 3[H]â¿¿(S)-4-[(ethyl-phenyl-amino)-methyl]-4,5-dihydro-oxazol-2-ylamine bound in the presence of 10 uM unlabeled ligand. All compounds were tested at a broad range of concentrations (10 pM to 10 uM) in duplicates. The test compounds (20 ul/well) were transferred into a 96 deep well plate (TreffLab), and 180 ul of HEPES-NaOH (20 mM, pH 7.4) containing MgCl2 (10 mM) and CaCl2 (2 mM) (binding buffer), 300 ul of the radioligand 3[H]â¿¿(S)-4-[(ethyl-phenyl-amino)-methyl]-4,5-dihydro-oxazol-2-ylamine at a concentration of 3.3xKd in nM and 500 ul of the membranes (resuspended at 50 ug protein per ml) added. The 96 deep well plates were incubated for 1 hr at 4° C. Incubations were terminated by rapid filtration through Unifilter-96 plates (Packard Instrument Company) and glass filters GF/C (Perkin Elmer) presoaked for 1 hr in polyethylenimine (0.3%) and washed 3 times with 1 ml of cold binding buffer. After addition of 45 ul of Microscint 40 (PerkinElmer) the Unifilter-96 plate was sealed and after 1 hr the ratioactivity counted using a TopCount Microplate Scintillation Counter (Packard Instrument Company).
Measurement: Ki = 10.1 nM (pChEMBL 8)
Descriptors: MW 347.42, ALogP 3.57, HBA 4, HBD 2, PSA 63.25, QED 0.76
Compound (SMILES): Cl.O=C(O)[C@]1(Cc2cccc(Nc3nccs3)n2)CC[C@@H](Oc2cccc(Cl)c2Cl)CC1
InChIKey: UQAYCQZTBZXDHR-PGIBDOGXSA-N
Target: Aurora kinase A (SINGLE PROTEIN), Homo sapiens
UniProt: O14965
Assay: Inhibition of human N-terminal His-tagged Aurora A expressed in Escherichia coli BL21-Codon-Plus(DE3)-RIL cells using 5-carboxy-fluorescein-y-aminobutyric acid-Ala-Leu-Arg-Arg-Ala-Ser-Leu-Gly-NH2 as substrate after 120 mins by fluorescence polarization assay
Measurement: IC50 = 0.07 nM (pChEMBL 10.149999618530273)
Descriptors: MW 478.4, ALogP 6.22, HBA 6, HBD 2, PSA 84.34, QED 0.42
Compound (SMILES): Cc1cc(C)c(-n2nccn2)c(C(=O)N2CCOC[C@H]2Cc2cccc(-n3nccn3)c2)c1
InChIKey: PYRHLDRQRCTVES-OAQYLSRUSA-N
Target: Orexin receptor type 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O43614
Assay: OX Inhibition 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 ug/mL G418, 100 U/mL penicillin, 100 ug/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.
Measurement: IC50 = 547 nM (pChEMBL 6.260000228881836)
Descriptors: MW 443.51, ALogP 2.55, HBA 8, HBD 0, PSA 90.96, QED 0.47
Compound (SMILES): C[C@H](Nc1nccc(N2C(=O)OC[C@@H]2[C@H](C)F)n1)c1cnn(-c2ccc(Cl)cc2)c1
InChIKey: NJHKNRVBHGOLEU-GDZNZVCISA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: Fluorescence Biochemical Assay: The IDH1 (R132H) mutant catalyzes the reduced form of NADP+ (NADPH) and α-ketoglutarate (α-KG) to form nicotinamide adenine dinucleotide phosphate (NADP+) and R(−)-2-hydroxyglutarate (2HG). The reaction can be monitored kinetically by following the oxidation of NADPH to NADP+ which is measured using fluorescence, excitation at 355 nm and emission at 530 nm. Reactions were monitored using the Perkin-Elmer Envision, Model 2101. More specifically, the biochemical reactions were performed at room temperature in 384-well Greiner flat-bottom plates (Cat. No. 781076) using a final reaction volume of 20 μL and the following assay buffer conditions: 50 mM HEPES pH 7.5, 10 mM MgCl2, 1 mM DTT, 0.02% BSA, 0.02% Tween-20, 10 μM NADPH and 100 μM α-KG. The final reaction mixture contained 2.5% DMSO and test compounds with concentrations ranging 0.0000008-25 μM. The IDH1 (R132H) enzyme was used at a final concentration of 10 nM. Curve fitting for dose response IC50 determinations was done using a 4-parameter logistic model: y=min+((max−min)/1+(x/IC50)slope).
Measurement: IC50 = 24 nM (pChEMBL 7.619999885559082)
Descriptors: MW 430.87, ALogP 4.17, HBA 7, HBD 1, PSA 85.17, QED 0.63
Compound (SMILES): COc1ccc(Cl)c(N(CCCN2CCCC2)c2ccc3ncc(-c4cnn(C)c4)nc3c2)c1.Cl
InChIKey: BBUCWORXTQFNRD-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 477.01, ALogP 5.32, HBA 7, HBD 0, PSA 59.31, QED 0.34
Compound (SMILES): COc1cc(OC)cc(N(CC2CC2)c2ccc3ncc(-c4cnn(CC(C)(C)O)c4)nc3c2)c1
InChIKey: MTSOIUXASMCNHX-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 473.58, ALogP 4.83, HBA 8, HBD 1, PSA 85.53, QED 0.37
Compound (SMILES): O=S(=O)(NOCC1CC1)c1ccc(NC2CC3CCC2C3)cc1C(F)(F)F
InChIKey: MWNZTBJPOZHBKG-UHFFFAOYSA-N
Target: Cannabinoid receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P34972
Assay: Binding Assay: The binding assays were performed by testing the ability of the new compounds to displace the radiolabeled synthetic non-selective cannabinoid agonist [3H]CP55940 (168 Ci/mmol; PerkinElmer) from the human CB1 (hCB1) or human CB2 (hCB2) receptors on membranes derived from stably transfected HEK-293 cells (PerkinElmer). Membranes were diluted in assay buffer (50 mM Tris-HCl, 1 mM EDTA, 1 mM MgCl2, 1 mg/ml BSA, pH=7.4). The amount of membrane was determined for each batch of membranes according to protein binding assay. The minimum amount of membrane that gave 50% specific binding was used for the binding assay. In most assays, binding was tested using 8 μg and 4 μg protein of hCB1 and hCB2 membranes, respectively. The tested compounds were dissolved in DMSO and diluted in assay buffer to a final concentration of 0.1% solvent. Total binding of [3H]CP55940 was evaluated with 1.5 nM to hCB1 and with 0.5 nM to hCB2, according to Kd affinity of [3H]CP55940 for the respective membranes. The ability of the tested compounds to displace [3H]CP55940 was evaluated first at a single concentration point of 100 nM for binding toward hCB2 or hCB1. In certain cases, the displacement was tested at compound concentrations ranging from 0.03 nM to 10 μM. Non-specific binding was measured by the addition of 1 μM of unlabelled CP55940 to the tubes. Binding assays were performed in triplicate in a total volume of 500 μl for 60 minutes at 30° C., in a shaking bath. Free and bound radioligands were separated by rapid filtration through GF/C filter plates (PerkinElmer) that had been presoaked with 0.1% Polyethylenimine (Sigma). Filters were shaken for 1 hour in 7 ml scintillation fluid (PerkinElmer) and radioactivity was determined by liquid scintillation counter (Wallac; PerkinElmer).
Measurement: IC50 = 1579 nM (pChEMBL 5.800000190734863)
Descriptors: MW 404.45, ALogP 3.93, HBA 4, HBD 2, PSA 67.43, QED 0.68
Compound (SMILES): CC1(C)CCC(CN2CCN(c3ccc(C(=O)NS(=O)(=O)c4ccc(NCC5(F)CCOCC5)c([N+](=O)[O-])c4)c(Oc4cccc5[nH]ncc45)c3)CC2)=C(c2ccc(Cl)cc2)C1
InChIKey: XSZJGRAXGXYIAI-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 = 17.48 nM (pChEMBL 7.760000228881836)
Descriptors: MW 886.45, ALogP 8.75, HBA 11, HBD 3, PSA 172.03, QED 0.08
Compound (SMILES): FC(F)(F)c1ccc(Nc2nc(C3CC3)nc3c2CCN(c2ncccc2C(F)(F)F)CC3)nc1
InChIKey: CXTXSQCXQAHIJD-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 = 510 nM (pChEMBL 6.289999961853027)
Descriptors: MW 494.44, ALogP 5.53, HBA 6, HBD 1, PSA 66.83, QED 0.48
Compound (SMILES): Cc1ccc(C)n2nc(CCc3ccc4ccccc4n3)nc12
InChIKey: YBBKCQFKMXFXOD-UHFFFAOYSA-N
Target: cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A (SINGLE PROTEIN), Homo sapiens
UniProt: Q9Y233
Assay: Inhibition Assay: A PDE10A assay may for example, be performed as follows: The assay is performed in 60 uL samples containing a fixed amount of the relevant PDE enzyme (sufficient to convert 20-25% of the cyclic nucleotide substrate), a buffer (50 mM HEPES7.6; 10 mM MgCl2; 0.02% Tween20), 0.1 mg/ml BSA, 225 pCi of 3H-labelled cyclic nucleotide substrate, tritium labeled cAMP to a final concentration of 5 nM and varying amounts of inhibitors. Reactions are initiated by addition of the cyclic nucleotide substrate, and reactions are allowed to proceed for one hr at room temperature before being terminated through mixing with 15 uL 8 mg/mL yttrium silicate SPA beads (Amersham). The beads are allowed to settle for one hr in the dark before the plates are counted in a Wallac 1450 Microbeta counter. The measured signal can be converted to activity relative to an uninhibited control (100%) and IC50 values can be calculated using the Xlfit extension to EXCEL.
Measurement: IC50 = 85 nM (pChEMBL 7.070000171661377)
Descriptors: MW 302.38, ALogP 3.68, HBA 4, HBD 0, PSA 43.08, QED 0.58
Compound (SMILES): CNC(=O)c1c(-c2ccc(F)cc2)oc2cc(-c3ccsc3)c(-c3ccc4c(n3)-c3cc5c(F)cccc5n3CO4)cc12
InChIKey: WTTNMFLPAHRLMJ-UHFFFAOYSA-N
Target: Genome polyprotein (SINGLE PROTEIN), Hepatitis C virus genotype 1b (isolate Japanese) (HCV)
UniProt: P26662
Assay: ELISA-Based Assay: Measurement of inhibition by compounds was performed using the HCV replicon system. Several different replicons encoding different HCV genotypes or mutations were used. In addition, potency measurements were made using different formats of the replicon assay, including different ways of measurements and different plating formats. See Jan M. Vrolijk et al., A replicons-based bioassay for the measurement of interferons in patients with chronic hepatitis C, 110 J. VIROLOGICAL METHODS 201 (2003); Steven S. Carroll et al., Inhibition of Hepatitis C Virus RNA Replication by 2'-Modified Nucleoside Analogs, 278(14) J. BIOLOGICAL CHEMISTRY 11979 (2003). However, the underlying principles are common to all of these determinations, and are outlined below.Stable neomycin phosphotransferase encoding replicons-harboring cell lines were used, so all cell lines were maintained under G418 selection prior to the assay. Potency was determined using a cell ELISA assay with an antibody to the replicons encoded NS3/4a protease. See Caterina Trozzi et al., In Vitro Selection and Characterization of Hepatitis C Virus Serine Protease Variants Resistant to an Active-Site Peptide Inhibitor, 77(6) J. Virol. 3669 (2003).
Measurement: IC50 = 27 nM (pChEMBL 7.570000171661377)
Descriptors: MW 589.62, ALogP 8.5, HBA 6, HBD 1, PSA 69.29, QED 0.22
Compound (SMILES): CNC(=N)NCCC[C@H](NC(=O)[C@H](CC(C)C)NC(=O)NNC(=O)[C@H](Cc1ccccc1)NC(=O)[C@@H](NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](C)NC(=O)[C@@H](Cc1ccc(O)cc1)NC(C)=O)[C@@H](C)O)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(N)=O
InChIKey: JXBWAELETYVLOH-AQWUIIHPSA-N
Target: KiSS-1 receptor (SINGLE PROTEIN), Rattus norvegicus
UniProt: Q924U1
Assay: Agonist activity at rat KISS1R expressed in CHO/dhfr cells assessed as increase in intracellular Ca2+ levels measured for 180 secs by Fluo 3-AM dye based FLIPR assay
Measurement: EC50 = 6 nM (pChEMBL 8.220000267028809)
Descriptors: MW 1183.34
Compound (SMILES): Cc1nc2ccccc2n(CC(=O)Nc2ccc(S(=O)(=O)NC(=S)NC3CCCCC3)cc2)c1=O
InChIKey: WSTZIATXULQCTI-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 513.65, ALogP 2.83, HBA 7, HBD 3, PSA 122.19, QED 0.43
Compound (SMILES): N#Cc1ccc(-c2cncc3c2CCCC3O)cc1
InChIKey: CRBUYSNYWXOHBE-UHFFFAOYSA-N
Target: Cytochrome P450 11B1, mitochondrial (SINGLE PROTEIN), Homo sapiens
UniProt: P15538
Assay: Cellular Enzyme Assay: G-402 cells expressing CYP11 constructs were established as described above and maintained in McCoy's 5a Medium Modified, ATCC Catalog No. 30-2007 containing 10% FCS and 400 ug/ml G418 (Geneticin) at 37° C. under an atmosphere of 5% CO2/95% air. Cellular enzyme assays were performed in DMEM/F12 medium containing 2.5% charcoal treated FCS and appropriate concentration of substrate (0.3-10 uM 11-Deoxycorticosterone, 11-Deoxycortisol or Corticosterone). For assaying enzymatic activity, cells were plated onto 96 well plates and incubated for 16 h. An aliquot of the supernatant is then transferred and analyzed for the concentration of the expected product (Aldosterone for CYP11B2; Cortisol for CYP11B1). The concentrations of these steroids can be determined using HTRF assays from CisBio analyzing either Aldosterone or Cortisol.
Measurement: EC50 = 31 nM (pChEMBL 7.510000228881836)
Descriptors: MW 250.3, ALogP 2.99, HBA 3, HBD 1, PSA 56.91, QED 0.85
Compound (SMILES): C[C@H](Nc1ncnc(N)c1C#Cc1ncccn1)c1nc2cccc(F)c2c(=O)n1-c1ccccc1
InChIKey: FDEKXZAYTQFTFR-INIZCTEOSA-N
Target: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform (SINGLE PROTEIN), Homo sapiens
UniProt: P42338
Assay: Time-Resolved Fluorescence Resonance Energy Transfer (TR-FRET) Assay: PI3K isoforms were assayed under initial rate conditions in the presence of 25 mM Hepes (pH 7.4), and 2xKm ATP (100-300 uM), 10 uM PIP2, 5% glycerol, 5 mM MgCl2, 50 mM NaCl, 0.05% (v/v) Chaps, 1 mM dithiothreitol, 1% (v/v) DMSO at the following concentrations for each isoform: PI3K alpha, beta, delta, and gamma at 50 picomolar (pM) and PI3Kgamma at 2 nanomolar (nM). After an assay reaction time of 30 minutes at 25° C., reactions were terminated with a final concentration of 10 mM EDTA, 10 nM labeled-PIP3, and 35 nM Europium labeled GRP-1 detector protein before reading TR-FRET on an Envision plate reader (Ex: 340 nm; Em: 615/665 nm; 100 us delay and 500 us read window).
Measurement: IC50 = 550 nM (pChEMBL 6.260000228881836)
Descriptors: MW 478.49, ALogP 3.26, HBA 9, HBD 2, PSA 124.5, QED 0.38
Compound (SMILES): Cc1cc(SCc2nn(-c3ccc(C(F)(F)F)cc3)nc2C(F)(F)F)ccc1OCC(=O)O
InChIKey: HJNCGNDHFDNZLL-UHFFFAOYSA-N
Target: Peroxisome proliferator-activated receptor delta (SINGLE PROTEIN), Mus musculus
UniProt: P35396
Assay: Transactivation of yeast GAL4 DNA binding domain-tagged mouse PPARdelta expressed in HEK293T cells incubated for 20 hrs by luciferase reporter gene assay
Measurement: EC50 <= 10000 nM (pChEMBL 5)
Descriptors: MW 491.41, ALogP 5.37, HBA 6, HBD 1, PSA 77.24, QED 0.35
Compound (SMILES): CN1CC[C@H](c2c(O)cc(O)c3c(=O)cc(-c4ccc(Br)cc4)oc23)[C@H](O)C1
InChIKey: SASCFBGSAVCXNS-SUMWQHHRSA-N
Target: CDK9/cyclin T1 (PROTEIN COMPLEX), Homo sapiens
UniProt: P50750
Assay: Inhibition of human His6-tagged CDK9/cyclin T1 expressed in baculovirus infected sf9 cells using GST-CTD as substrate after 10 mins in presence of [gamma-32P]ATP by SDS-PAGE analysis
Measurement: IC50 = 5.5 nM (pChEMBL 8.260000228881836)
Descriptors: MW 446.3, ALogP 3.41, HBA 6, HBD 3, PSA 94.14, QED 0.56
Compound (SMILES): Cn1c(=O)n(C2CCOCC2)c2c3cc(-c4cnn(CCCO)c4)ccc3ncc21
InChIKey: VJZDCKGIOGXFJF-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase ATR (SINGLE PROTEIN), Homo sapiens
UniProt: Q13535
Assay: Cellular Assay: Assay b) HT29 cells (ECACC #85061109) were seeded into 384 well assay plates (Costar #3712) at a density of 6000 cells/well in 40 μl EMEM medium containing 1% L glutamine and 10% FBS and allowed to adhere overnight. The following morning compound of Formula (I) in 100% DMSO was added to assay plates by acoustic dispensing. After 1 h incubation at 37° C. and 5% CO2, 40 nl of 3 mM 4NQO in 100% DMSO was added to all wells by acoustic dispensing, except minimum control wells which were left untreated with 4NQO to generate a null response control. Plates were returned to the incubator for a further 1 h. Then cells were fixed by adding 20 μl of 3.7% formaldehyde in PBS solution and incubating for 20 mins at r.t. Then 20 μl of 0.1% Triton X100 in PBS was added and incubated for 10 minutes at r.t., to permeabalise cells. Then the plates were washed once with 50 μl/well PBS, using a Biotek EL405 plate washer. Phospho-Chk1 Ser 345 antibody (Cell Signalling Technology #2348) was diluted 150 fold in PBS containing 0.05% polysorbate/Tween and 15 μl was added to each well and incubated over night at r.t. The next morning plates were washed three times with 50 μl/well PBS, using a Biotek EL405 plate washer, and then 20 μl of secondary Ab solution, containing 500 fold diluted Alexa Fluor 488 Goat anti-rabbit IgG (Molecular Probes #A-11008) and 0.002 mg/ml Hoeschst dye (Molecular Probes #H-3570), in PBST, was added. After 2 h incubation at r.t., the plates were washed three times with 50 μl/well PBS, using a Biotek EL405 plate washer, and plates were then sealed with black plate seals until read. Plates were read using an ArrayScan VTI instrument, using an XF53 filter with 10× objective. A two laser set up was used to analyse nuclear staining with Hoeschst (405 nm) and secondary antibody staining of pChk1 (488 nm).
Measurement: IC50 = 418 nM (pChEMBL 6.380000114440918)
Descriptors: MW 407.47, ALogP 2.49, HBA 8, HBD 1, PSA 87.1, QED 0.55
Compound (SMILES): N#C[C@H]1CC[C@H](Nc2ccc3ncc(-c4cccc(Cl)c4)n3n2)CC1
InChIKey: IALLAFCBZHMLLB-SAZUREKKSA-N
Target: Serine/threonine-protein kinase pim-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11309
Assay: Pim-1 Kinase Inhibition Assay: One illustrative manner in which Pim-1 kinase activity can be determined is by quantifying the amount of ATP remaining in solution after an in vitro Pim-1 kinase reaction. The Kinase-Glo Assay Kit (Promega, Inc., Madison, Wis.) allows this. The amount of ATP remaining in the solution after the kinase reaction serves as a substrate for the luciferase to catalyze luciferin to oxyluciferin plus one photon of light. Thus, the luminescent signal read by the Luminoskan Ascent Instrument (Thermo Electron Corp., Milford, Mass.) correlates with the amount of ATP present after the kinase reaction and inversely correlates with the amount of kinase activity. This assay is efficient at determining the IC50 values of kinase inhibitors against the Pim-1 kinase. These assays are set up in duplicate 50 ul volumes in white, flat bottom 96 well plates. Inhibitors are added to the solution of 1× kinase buffer, 10 uM ATP, 100 uM Pim-1-specific substrate, 50 ng of active Pim-1 enzyme, and water in serial dilutions ranging from micromolar to nanomolar concentrations. This solution is incubated at 30 degrees Celsius at 360 rpm for two hours. Following the incubation, 50 ul of Kinase-Glo reagent is added to each well, including all positive and negative control wells, and incubated at room temperature for 15 minutes. The plate is then read by the Luminoskan Ascent instrument and the results displayed with the Ascent Software version 2.6. The IC50 values can then be calculated for each inhibitor tested.
Measurement: IC50 = 19 nM (pChEMBL 7.71999979019165)
Descriptors: MW 351.84, ALogP 4.54, HBA 5, HBD 1, PSA 66.01, QED 0.75
Compound (SMILES): COc1cc(OC)cc(N(CCC2CCNCC2)c2ccc3ncc(-c4cnn(C)c4)nc3c2)c1
InChIKey: AYJLMQKFNIMDMS-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 = 5623.41 nM (pChEMBL 5.25)
Descriptors: MW 472.59, ALogP 4.58, HBA 8, HBD 1, PSA 77.33, QED 0.4
Compound (SMILES): CC(C)C[C@@H]1NCCOc2ccccc2/C=C\CNC(=O)[C@H](Cc2ccccc2Cl)NC(=O)C2(CCCC2)NC1=O
InChIKey: XMQIMVLAPPWENI-MGXXSPPHSA-N
Target: Growth hormone secretagogue receptor type 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q92847
Assay: Agonist activity at human GSHR1a transfected in CHOK1 cells co-expressing Galpha16 assessed as increase in Ca2+ release by aequorin assay
Measurement: EC50 = 1 nM (pChEMBL 9)
Descriptors: MW 581.16, ALogP 4.02, HBA 5, HBD 4, PSA 108.56, QED 0.44
Compound (SMILES): Cc1cc(Nc2cc(C(F)(F)F)ccn2)nc(-c2ccc(N3CCCC(C(=O)N4CCCC(C(=O)O)C4)C3)nc2)c1
InChIKey: RQBXIUIPOIGMIM-UHFFFAOYSA-N
Target: Tyrosine-protein kinase SYK (SINGLE PROTEIN), Homo sapiens
UniProt: P43405
Assay: Homogeneous Time-Resolved Fluorescence (HTRF) Assay: A recombinant GST-hSyk fusion protein was used to measure potency of compounds to inhibit human Syk activity. The recombinant human GST-Syk (Carna Biosciences #08-176) (5 pM final concentration) was incubated with various concentrations of the inhibitor diluted in DMSO (0.1% final concentration) for 10 minutes at room temperature in 15 mM Tris-HCl (pH 7.5), 0.01% tween 20, 2 mM DTT in 384 well plate format. To initiate the reaction the biotinylated substrate peptide (250 nM final concentration) that contains the phosphorylation site for Syk was added with magnesium (5 mM final concentration) and ATP (25 uM final concentration). Final volume of the reaction was 10 uL. Phosphorylation of the peptide was allowed to proceed for 45x at room temperature. To quench the reaction and detect the phosphorylated product, 2 nM of a Europium-anti-phosphotyrosine antibody (Perkin Elmer #AD0161) and 70 nM SA-APC (Perkin-Elmer #CR130-100) were added together in 15 mM Tris pH 7.5.
Measurement: IC50 = 3 nM (pChEMBL 8.520000457763672)
Descriptors: MW 568.6, ALogP 5.15, HBA 7, HBD 2, PSA 111.55, QED 0.42
Compound (SMILES): COC(=O)CCCCS(C)(=O)=NC(=O)c1cnc(N)c(C#Cc2cccc(NC(=O)Nc3cc(C)ccc3F)c2)c1
InChIKey: KLELWYOISYBNBV-UHFFFAOYSA-N
Target: Platelet-derived growth factor receptor beta (SINGLE PROTEIN), Homo sapiens
UniProt: P09619
Assay: PDGFRbeta Kinase Assay: Biochemical PDGFRbeta kinase assays were performed in 96 well microtiter plates that were coated overnight with 75 ug of poly-Glu-Tyr (4:1) in 10 mM Phosphate Buffered Saline (PBS), pH 7.4. The coated plates were washed with 2 mls per well PBS+0.05% Tween-20 (PBS-T), blocked by incubation with PBS containing 1% BSA, then washed with 2 mls per wellPBS-T prior to starting the reaction. Reactions were carried out in 100 uL reaction volumes containing 36 uM ATP in kinase buffer (50 mM Hepes buffer pH 7.4, 20 mM MgCl2, 0.1 mM MnCl2 and 0.2 mM Na3VO4). Test compounds were reconstituted in 100% DMSO and added to the reaction to give a final DMSO concentration of 5%. Reactions were initiated by the addition 20 ul per well of kinase buffer containing 200-300 ng purified cytoplasmic domain PDGFR-b protein (Millipore). Following a 60 minute incubation at 30° C., the reactions were washed 2 mls per well PBS-T. 100 ul of a monoclonal anti-phosphotyrosine antibody-peroxidase conjugate diluted 1:10,000 in PBS-T was added to the wells for 30 minutes. Following a 2 mls per well wash with PBS-Tween-20, 100 ul of 0-Phenylenediamine Dihydrochloride in phosphate-citrate buffer, containing urea hydrogen peroxide, was added to the wells for 7-10 minutes as a colorimetric substrate for the peroxidase. The reaction was terminated by the addition of 100 ul of 2.5N H2SO4 to each well and read using a microplate ELISA reader set at 492 nm.
Measurement: IC50 = 14 nM (pChEMBL 7.849999904632568)
Descriptors: MW 579.65, ALogP 4.74, HBA 7, HBD 3, PSA 152.84, QED 0.2
Compound (SMILES): COc1cccc(-c2cn3c4nc(ncc24)NCCCCCCCC(O)CCCC3)c1
InChIKey: LZPFBEBTZBKKFB-UHFFFAOYSA-N
Target: Receptor-type tyrosine-protein kinase FLT3 (SINGLE PROTEIN), Homo sapiens
UniProt: P36888
Assay: Inhibition of Flt3 (unknown origin) by microfluidic capillary electrophoresis assay
Measurement: IC50 = 470 nM (pChEMBL 6.329999923706055)
Descriptors: MW 422.57, ALogP 5.4, HBA 6, HBD 2, PSA 72.2, QED 0.58
Compound (SMILES): COc1cnc(C(=O)Nc2cnc(F)c([C@]3(C)C[C@@H](C(F)(F)F)OC(N)=N3)c2)c(Cl)c1
InChIKey: QDBLNVMBHVAXAF-SJCJKPOMSA-N
Target: Beta-secretase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P56817
Assay: In Vitro BACE Cell-Based Assay: The cell-based assay measures inhibition or reduction of Aβ40 in conditioned medium of test compound treated cells expressing amyloid precursor protein. Cells stably expressing Amyloid Precursor Protein (APP) were plated at a density of 40K cells/well in 96 well plates (Costar). The cells were cultivated for 24 hours at 37° C. and 5% CO2 in DMEM supplemented with 10% FBS. The test compounds were then added to cells in 10-point dose response concentrations with the starting concentration being either 100 uM or 10 uM. The compounds were diluted from stock solutions in DMSO and the final DMSO concentration of the test compounds on cells was 0.1%. After 24 h of incubation with the test compounds the supernatant conditioned media was collected and the Aβ 40 levels were determined using a sandwich ELISA.
Measurement: IC50 = 25.3 nM (pChEMBL 7.599999904632568)
Descriptors: MW 461.8, ALogP 3.41, HBA 7, HBD 2, PSA 111.72, QED 0.53
Compound (SMILES): Cc1nc([C@H](CC(C)C)NC(=O)c2ccc(C3CC3)c(OCC3CC3)n2)no1
InChIKey: VDOQZJTZADKGTH-SFHVURJKSA-N
Target: Cannabinoid receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P21554
Assay: cAMP Assay: CHO cells expressing human CB1 or CB2 receptors are seeded 17-24 hours prior to the experiment 50.000 cells per well in a black 96 well plate with flat clear bottom (Corning Costar #3904) in DMEM (Invitrogen No. 31331), 1.times.HT supplement, with 10% fetal calf serum and incubated at 5% CO2 and 37° C. in a humidified incubator. The growth medium was exchanged with Krebs Ringer Bicarbonate buffer with 1 mM IBMX and incubated at 30.degree. C. for 30 min Compounds were added to a final assay volume of 100 ul and incubated for 30 min at 30° C. Using the cAMP-Nano-TRF detection kit the assay (Roche Diagnostics) was stopped by the addition of 50 ul lysis reagent (Tris, NaCl, 1.5% Triton X100, 2.5% NP40, 10% NaN.sub.3) and 50 ul detection solutions (20 uM mAb Alexa700-cAMP 1:1, and 48 uM Ruthenium-2-AHA-cAMP) and shaken for 2 h at room temperature. The time-resolved energy transfer is measured by a TRF reader (Evotec Technologies GmbH), equipped with a ND:YAG laser as excitation source. The plate is measured twice with the excitation at 355 nm and at the emission with a delay of 100 ns and a gate of 100 ns, total exposure time 10 s at 730 (bandwidth 30 nm) or 645 nm (bandwidth 75 nm), respectively. The FRET signal is calculated.
Measurement: EC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 384.48, ALogP 3.96, HBA 6, HBD 1, PSA 90.14, QED 0.7
Compound (SMILES): Cn1nc(-c2ccc(F)cc2)c(-c2ccc3nc(NC(=O)c4ccnc(N5CCOCC5)c4)cn3n2)c1C1CCN(CCCF)CC1
InChIKey: LKEAQNUDAAUNLQ-UHFFFAOYSA-N
Target: Casein kinase I isoform delta (SINGLE PROTEIN), Homo sapiens
UniProt: P48730
Assay: Kinase Assay: The kinase assay was performed in V-bottom 384-well plates. The final assay volume was 30 ul prepared from 15 ul additions of enzyme, substrates (fluoresceinated peptide FL-AHA-KRRRAL-PSER-VASLPGL-OH and ATP) and test compounds in assay buffer (20 mM HEPES pH 7.4, 30 mM MgCl2, 0.015% Brij35 and 4 mM DTT). The reaction was incubated at room temperature for 22 hours and terminated by adding 45 ul of 35 mM EDTA to each sample. The reaction mixture was analyzed on the Caliper LABCHIPÂ®3000 (Caliper, Hopkinton, Mass.) by electrophoretic separation of the unphosphorylated substrate and phosphorylated product Inhibition data were calculated by comparison of the no enzyme control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition. The final concentration of reagents in the assay were 200 pM CK1ε or CK1δ, 50 uM ATP, 1.5 uM FL-AHA-KRRRAL-PSER-VASLPGL-OH, and 1.6% DMSO. Dose response curves were generated to determine the concentration required to inhibit 50% of the kinase activity (IC50). Compounds were dissolved at 10 mM in dimethylsulfoxide (DMSO) and evaluated at eleven concentrations. IC50 values were derived by non-linear regression analysis.
Measurement: IC50 = 0.5 nM (pChEMBL 9.300000190734863)
Descriptors: MW 641.73, ALogP 4.96, HBA 10, HBD 1, PSA 105.71, QED 0.24
Compound (SMILES): CC[C@H](C)[C@H](NC(=O)[C@]1(NC(=O)[C@@H]2CCCN2C(=O)[C@H](CCCCN)NC(=O)[C@@H](N)CCCNC(=N)N)CCO[C@@H]1c1ccc(Br)cc1)C(=O)N[C@@H](CC(C)C)C(=O)O
InChIKey: MUEAQPOYEILMHR-SIDXGNBNSA-N
Target: Neurotensin receptor type 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P30989
Assay: Displacement of [3H]neurotensin from human NTS1 receptor expressed in CHOK1 cell membranes after 60 mins by scintillation counting
Measurement: Ki = 10000 nM (pChEMBL 5)
Descriptors: MW 893.93, ALogP 1.11, HBA 10, HBD 10, PSA 297.18, QED 0.04
Compound (SMILES): O=c1[nH]ccc2[nH]c(-c3cccc4ccc(Nc5ccccc5Cl)nc34)cc12
InChIKey: AFGSEIPIIRAHRL-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase pim-2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9P1W9
Assay: Homogeneous Time Resolved Fluorescence Assay (HTRF): The assay for the determination of Pim activity is based on the formation of phosphorylated biotinylated-BAD peptide at the Serine 112 residue (S112) and employs HTRF® (homogeneous time resolved fluorescence) technology to detect the product in a 96-well plate format. The phosphorylation of biotinylated-BAD (S112) peptide by full length recombinant Pim-1, Pim-2, or Pim-3 protein was detected with streptavidin:Allophycocyanin (APC) conjugate and a europium (Eu) labeled antibody directed against phosphorylated-BAD (S112). Excitation of Eu by a high energy laser light (337 nm) leads to a transfer of energy to the APC molecule, and results in an emission at 665 nm. The fluorescence is directly proportional to the amount of phosphorylated BAD peptide present in the reaction. Compounds were prepared in DMSO by conducting 3-fold serial dilutions to give a 10-point dosing curve having a high dose of 1 μM. A reference compound was included on each assay plate in order to validate that plate; on one plate of every assay run, two additional reference compounds were included. The final buffer conditions were as follows: 60 mM Hepes, pH 7.0, 0.05% BSA, 2 mM DTT. Incubations were carried out at RT (22° C.) for 2 h for Pim-1, 1 hour and 30 min for Pim-3, and 45 min for Pim-2. The reaction was stopped by the addition of 3 mM EDTA, and fluorescence was measured by an HTRF® Rubystar microplate reader.
Measurement: IC50 = 32.2 nM (pChEMBL 7.489999771118164)
Descriptors: MW 386.84, ALogP 5.47, HBA 3, HBD 3, PSA 73.57, QED 0.38
Compound (SMILES): COc1cc(Nc2cc(Oc3ccc(NC(=O)Nc4cc(C(C)(C)C)cc(NS(C)(=O)=O)c4OC)c4ccccc34)ccn2)ccc1C(=O)O
InChIKey: QFXFIEVXAUEHEV-UHFFFAOYSA-N
Target: Mitogen-activated protein kinase 14 (SINGLE PROTEIN), Homo sapiens
UniProt: Q16539
Assay: Enzyme Binding Assays (Kinomescan): Kinase enzyme binding activities of the compound disclosed herein may be determined using a proprietary assay which measures active site-directed competition binding to an immobilized ligand (Fabian, M. A. et al., Nature Biotechnol., 2005, 23:329-336). These assays may be conducted by DiscoverX (formerly Ambit; San Diego, Calif.). The percentage inhibition produced by incubation with a test compound may be calculated relative to the non-inhibited control.
Measurement: Kd = 2.8 nM (pChEMBL 8.550000190734863)
Descriptors: MW 699.79, ALogP 7.8, HBA 9, HBD 5, PSA 177.21, QED 0.09
Compound (SMILES): Cc1ccc(C2=C(C#N)C(=O)NC(c3ccc(OCCOC(C)(C)C)cc3)(C(F)(F)F)C2)cc1
InChIKey: ZSHDXHIXEQNOCA-UHFFFAOYSA-N
Target: Alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase (SINGLE PROTEIN), Homo sapiens
UniProt: Q10469
Assay: MGAT SPA Assay: MGAT2 enzyme was assayed using membranes isolated from Sf9 cells expressing the recombinant human MGAT2 cDNA with 2-monooleoylglycerol and [3H]-oleoyl-CoA as substrates as described by Seethala et al. [Anal. Biochem., 383(2):144-150 (Dec. 15, 2008)]. Briefly, the assays were conducted in 384-well plates in a total volume of 30 uL at 25° C. In each assay, 200 ng of recombinant human MGAT2 membrane was incubated with 10 uM of 2-monooleoylglycerol and 15 uM of [3H]-oleoyl-CoA in 100 mM potassium phosphate (pH 7.4) for 20 min with various concentrations of compounds delivered in DMSO. The assay was terminated by the addition of 20 ul of Stopping Solution (7.5 mg/ml Yttrium Oxide Polylysine beads, 3.3 mg/ml Fraction V BSA and 200 uM Mercuric chloride in 50 mM HEPES, pH 7.4). The signal was measured 1 h after quenching the reaction using LEADSEEKERSM for 5 minutes. To calculate the degree of inhibition, the zero level of enzyme activity (blank) was defined.
Measurement: IC50 = 656 nM (pChEMBL 6.179999828338623)
Descriptors: MW 472.51, ALogP 5.44, HBA 4, HBD 1, PSA 71.35, QED 0.57
Compound (SMILES): Cc1ccn(CC(=O)N[C@H]2CC[C@H](CCN3CCC(c4noc5cc(F)ccc45)CC3)CC2)n1
InChIKey: RLVPJHQAQHSEHQ-XYWHTSSQSA-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 = 27.62 nM (pChEMBL 7.559999942779541)
Descriptors: MW 467.59, ALogP 4.42, HBA 6, HBD 1, PSA 76.19, QED 0.56
Compound (SMILES): O=C(O)CN1CCc2c(C(=O)N3CCC(c4ccc(F)c(F)c4C(F)(F)F)CC3)n[nH]c2C1
InChIKey: YMIKBDAUQJXFLA-UHFFFAOYSA-N
Target: Retinol-binding protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P02753
Assay: TR-FRET Assay: TR-FRET assay for retinol-induced RBP4-TTR interaction Binding of a desired RBP4 antagonist displaces retinol and induces hindrance for RBP4-TTR interaction resulting in the decreased FRET signal (FIG. 7). Bacterially expressed MBP-RBP4 and untagged TTR were used in this assay. For the use in the TR-FRET assay the maltose binding protein (MBP)-tagged human RBP4 fragment (amino acids 19-201) was expressed in the Gold(DE3)pLysS E. coli strain (Stratagene) using the pMAL-c4x vector. Following cell lysis, recombinant RBP4 was purified from the soluble fraction using the ACTA FPLC system (GE Healthcare) equipped with the 5-ml the MBP Trap HP column. Human untagged TTR was purchased from Calbiochem. Untagged TTR was labeled directly with Eu3+ Cryptate-NHS using the HTRF Cryptate Labeling kit from CisBio following the manufacturer's recommendations. HTRF assay was performed in white low volume 384 well plates (Greiner-Bio) in a final assay volume of 16 ul per well. The reaction buffer contained 10 mM Tris-HCl pH 7.5, 1 mM DTT, 0.05% NP-40, 0.05% Prionex, 6% glycerol, and 400 mM KF. Each reaction contained 60 nM MBP-RBP4 and 2 nM TTR-Eu along with 26.7 nM of anti-MBP antibody conjugated with d2 (Cisbio). Titration of test compounds in this assay was conducted in the presence of 1 uM retinol. All reactions were assembled in the dark under dim red light and incubated overnight at +4° C. wrapped in aluminum foil. TR-FRET signal was measured in the SpectraMax M5e Multimode Plate Reader (Molecular Device). Fluorescence was excited at 337 nm and two readings per well were taken: Reading 1 for time-gated energy transfer from Eu(K) to d2 (337 nm excitation, 668 nm emission, counting delay 75 microseconds, counting window 100 microseconds) and Reading 2 for Eu(K) time-gated fluorescence (337 nm excitation, 620 nm emission, counting delay 400 microseconds, counting window 400 microseconds).
Measurement: IC50 = 109.32 nM (pChEMBL 6.960000038146973)
Descriptors: MW 472.41, ALogP 3.17, HBA 4, HBD 2, PSA 89.53, QED 0.67
Compound (SMILES): CCCOc1ccc(Cc2c(O[C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)n[nH]c2C)cc1
InChIKey: WWVGKYLXCXINLV-NUABRCLCSA-N
Target: Sodium/glucose cotransporter 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P31639
Assay: Inhibition of human SGLT2 expressed in COS7 cells assessed as reduction in [14C]-AMG uptake
Measurement: IC50 = 15.4 nM (pChEMBL 7.809999942779541)
Descriptors: MW 408.45, ALogP 0.28, HBA 8, HBD 5, PSA 137.29, QED 0.42
Compound (SMILES): COC(=O)Nc1nc2cc(C3(O)c4ccccc4C(=O)N3c3cccc(Cl)c3C)ccc2[nH]1
InChIKey: SNBBWTWGAIYATK-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 462.89, ALogP 4.56, HBA 5, HBD 3, PSA 107.55, QED 0.41