lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): Cc1cc(-c2ccc([C@H](C)Nc3nccc(N4C(=O)OC[C@@H]4[C@@H](C)O)n3)cn2)ccc1F
InChIKey: GURKVSMLMZITAJ-BXTJHSDWSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: LC-MS Detection of 2-HG Assay: The biochemical reactions were performed at room temperature in 384-well Greiner flat-bottom plates (Costar, Cat. No. 781201) using a final reaction volume of 30 μL and the following assay buffer conditions: 50 mM HEPES pH 7.4, 10 mM MgCl2, 50 mM KCl, 1 mM DTT, 0.02% BSA, 5 uM NADPH and 100 uM alpha-KG. The final reaction mixture contained 3.3% DMSO and inhibitors with concentrations ranging 0.02-50 μM. The IDH1 enzyme was used at a final concentration of 0.25 nM. Following 45 minutes incubation, the reaction mixtures were quenched by the addition of 10 μL of 16% formic acid containing 800 nM of 5-carbon labeled 13C-2-HG). The protein was then precipitated by the addition of 2.5 volumes of acetonitrile followed by centrifugation (3000×g, minutes). The concentration of 2-HG in the resulting supernatants was measured by LC-MS (see below). LC-MS method. Reaction mixture supernatants were submitted to chromatographic separation on a BiobasicAX column (2.1 mm×20 mm, 5 μm particle, Thermo Scientific Inc.). The chromatographic mobile phases were A) 25 mM ammonium biocarbonate and B) acetonitrile (0.1% ammonium hydroxide). Nicotinamide was eluted at 1 ml/min using a 85-5% B gradient over 0.9 minutes (Agilent 1200SL LC system, Thermofisher LX-4 autosampler) and analyzed by multiple reaction monitoring (MRM) on a API4000 QTrap mass spectrometer (ABSciex, Framingham, Mass.) in the positive electrospray ionization (ESI+) mode. The mass transition for 2-HG and 13C-2-HG were 147→129 and 152→134, respectively.
Measurement: IC50 = 194 nM (pChEMBL 6.710000038146973)
Descriptors: MW 437.48, ALogP 3.87, HBA 7, HBD 2, PSA 100.47, QED 0.6
Compound (SMILES): Cc1c(-c2ccc(N3CCc4cccc(C(=O)Nc5nc6ccccc6s5)c4C3)nc2C(=O)O)cnn1Cc1cccc(N2CCCC2)n1
InChIKey: JFCXBWXVXSHFIH-UHFFFAOYSA-N
Target: Bcl-2-like protein 1 (SINGLE PROTEIN), Mus musculus
UniProt: Q64373
Assay: FL5.12 Cellular Assay: The efficacy of the compounds of Formula (I) can also be determined in cell-based killing assays using a variety of cell lines and mouse tumor models. For example, their activity on cell viability can be assessed on a panel of cultured tumorigenic and non-tumorigenic cell lines, as well as primary mouse or human cell populations. In one exemplary set of conditions, mouse FL5.12 cells transfected with Bcl-XL were cultured under standard conditions in RPMI with 2 mM glutamine, 1% 100 mM sodium pyruvate, 2% 1 M HEPES, 4 uL/L of beta;-mercaptoethanol, 1% penicillin-streptomycin, 10% FBS, and 10% WEHI-3B conditioned media (for IL-3). For assaying the compound activity, the cells were exchanged into an IL-3-depleted deprivation media, which was identical to the growth media except for the absence of FBS and WEHI-3B conditional media, for 2 days. Then the cells were exchanged to 3% FBS assay media (RPMI with 2 mM glutamine, 1% 100 mM sodium pyruvate, 2% 1 M HEPES, 4 uL/L of beta;-mercaptoethanol, 1% penicillin-streptomycin, 10% FBS, and 10% WEHI-3B conditioned media (for IL-3).
Measurement: EC50 = 216 nM (pChEMBL 6.670000076293945)
Descriptors: MW 670.8, ALogP 6.42, HBA 10, HBD 2, PSA 129.37, QED 0.19
Compound (SMILES): COCCNCc1ccc(-c2cc(NC3CC3)n3ncc(/C=C4\NC(=O)NC4=O)c3n2)s1
InChIKey: LQFKGIDZLUYTQQ-PXNMLYILSA-N
Target: Casein kinase II subunit beta (SINGLE PROTEIN), Homo sapiens
UniProt: P67870
Assay: Inhibition Assay: 5 uM ATP: Test compounds dissolved and diluted in DMSO (2 μl) were added to a reaction mixture comprising 10 μl of 5× Reaction Buffer (40 mM MOPS pH 7.0, 5 mM EDTA), 10 μl of recombinant human PIM2 solution (4 ng PIM-2 dissolved in dilution buffer (20 mM MOPS pH 7.0; EDTA 1 mM; 5% Glycerol; 0.01% Brij 35; 0.1%; 0.1% 2-mercaptoethanol; 1 mg/ml BSA)) and 8 ul of water. Reactions were initiated by the addition of 10 ul of ATP Solution (49% (15 mM MgCl2; 5 uM ATP) 1% ([γ-33P]ATP: Stock 1 mCi/100 μl; 3000 Ci/mmol (Perkin Elmer)) and 10 ul of substrate peptide solution (RSRSSYPAGT (SEQ ID NO.: 6), dissolved in water at a concentration of 1 mM), Reactions were maintained for 10 min at 30° C. The reactions were quenched with 100 ul of 0.75% Phosphoric acid, then transferred to and filtered through a Phosphocellulose filter plate (Millipore, MSPH-N6B-50). After washing each well 4 times with 0.75% Phosphoric acid, scintillation fluid (20 uL) was added to each well and
Measurement: IC50 = 1872 nM (pChEMBL 5.730000019073486)
Descriptors: MW 453.53, ALogP 1.95, HBA 9, HBD 4, PSA 121.68, QED 0.22
Compound (SMILES): CC(C)NS(=O)(=O)c1ccccc1Nc1nc(Nc2ccc(C(=O)N3CCOCC3)cc2)nc2c1CCN2
InChIKey: DYFDKIHVZPKYEV-UHFFFAOYSA-N
Target: Protein-tyrosine kinase 2-beta (SINGLE PROTEIN), Homo sapiens
UniProt: Q14289
Assay: Biochemical Assay: To measure inhibitory activity of FAK/PYK2 inhibitors, compounds were first prepare as a 1 mM stock in 100% DMSO and 3-fold serial dilution was performed in a 96-well plate (Corning, 3897) to generate 12 different concentration of 100× stock. A 5 μl of 100× stock of each concentration was added to wells containing 95 μl of 1× reaction buffer (40 mM Tris, pH7.5, mM MgCl2, 1 mM DTT and 1 mM CHAPS) to generate 5× stock. Then 2 μl of 5× stock of each concentration was added to a 384 wells-OptiPlate (PerkinElmer, 6007299). For FAK, 4 μl of 2.5 nM FAK, 1 μl of 8 μg/μl BSA and 1.5 μl of 666 nM ULight-poly Glu, Ala, Tyr (1:1:1) peptide substrate, prepared in above reaction buffer, were added to each well. The reaction was initiated by adding 1.5 μl of 33.3 μM ATP. The reaction was allowed to proceed for 120 min before being quenched with 5 μl of 40 mM EDTA stop buffer prepared in 1×LANCE detection buffer (PerkinElmer, CR97-100). For PYK2, 5 μl of 2 nM PYK2 and 1.5 μl of 666 nM ULight-poly Glu, Ala, Tyr (1:1:1) peptide substrate, prepared in above reaction buffer, were added to each well. The reaction was initiated by adding 1.5 μl of 46.6 μM ATP. The reaction was allowed to proceed for 40 min before being quenched with 5 μl of 40 mM EDTA stop buffer prepared in 1×LANCE detection buffer (PerkinElmer, CR97-100). Upon quenching of the reaction, 5 μl of 8 nM anti-phosphotyrosine antibody was added to each well and incubated for 60 minutes.
Measurement: IC50 < 20 nM (pChEMBL 7.698999881744385)
Descriptors: MW 537.65, ALogP 3.09, HBA 9, HBD 4, PSA 137.58, QED 0.34
Compound (SMILES): Cc1ccc(NC(=O)c2cccc(C(F)(F)F)c2)cc1-c1cc(N2CCS(=O)(=O)CC2)nc(N2CCOCC2)n1
InChIKey: CASQHERFADFEPM-UHFFFAOYSA-N
Target: RAF proto-oncogene serine/threonine-protein kinase (SINGLE PROTEIN), Homo sapiens
UniProt: P04049
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 = 0.408 nM (pChEMBL 9.390000343322754)
Descriptors: MW 575.61, ALogP 3.79, HBA 8, HBD 1, PSA 104.73, QED 0.49
Compound (SMILES): CC(C)NS(=O)(=O)c1ccc(OC/C(=C/F)CN)cc1
InChIKey: PBHHQZSGADNWMY-YRNVUSSQSA-N
Target: Amine oxidase [copper-containing] 3 (SINGLE PROTEIN), Homo sapiens
UniProt: Q16853
Assay: Recombinant SSAO/VAP-1 Inhibtion Assay: Briefly, HMEC cell expressing human SSAO/VAP-1 were grown in several 10 cm petri dishes, once the cells reached 100% confluency, cells were harvested and homogenates were prepared. Cells were washed twice with 5 mL of chilled HES buffer (20 mM HEPES, 1 mM EDTA, 250 mM sucrose, pH 7.4). HES buffer containing 1× protease inhibitor (Sigma Aldrich) and added and cells were incubated on ice for 3 min. Buffer was removed and cells were scraped and transferred to a centrifuge tube. Cell lysates were prepared by passing through 23 G needle for, 10 times and followed by 27 G needle for 10 times. Alternatively the cell lysates were prepared by using IKA Ultra-Turrax T 10 homogenizer for 3 min for every 10 mL of cell suspensions. Cells were then spun for 5 min at 300×g. The clear supernatant was transferred to new centrifuge tube and stored at −80 °C. until colorimetric assay was performed. Prior to the assay, 0.5 mM pargyline was added in order to inhibit any residue MAO activities. Briefly, 50 μL of cell lysate was incubated with test compounds for 30 min at 37 °C. Reaction mixtures were added and kinetic was read as described in detail in Example 5: Briefly, in a standard 96 well plate assay 50 μL of purified human SSAO/VAP-1 (0.25 μg/mL) in 0.1 M NaPO4 buffer (pH 7.4) was added into each well. Test compounds were dissolved in DMSO and tested in a Concentration Response Curve (CRC) with 4-9 data points, typically in the micromolar or nanomolar range after incubation with human SSAO/VAP-1 for 30 min at 37 °C. After 30 min incubation, 50 μL of the reaction mixture containing 600 μM benzylamine (Sigma Aldrich), 120 μM Amplex Red (Sigma Aldrich) and 1.5 U/mL horseradish peroxidase (Sigma Aldrich) prepared in 0.1 M NaPO4 buffer (pH 7.4) were added to the corresponding well. The fluorescence unit (RFU) was read every 2.5 min for 30 min at 37 °C. excitation 565 nm and emission 590 (Optima; BMG labtech). The slope of the kinetics for each well was calculated using MARS data analysis software (BMG labtech) and this value was used to deduce the IC50 value (Dotmatics).
Measurement: IC50 < 100000 nM (pChEMBL 4)
Descriptors: MW 302.37, ALogP 1.56, HBA 4, HBD 2, PSA 81.42, QED 0.8
Compound (SMILES): Cc1cccc2cc(Cn3nc(-c4cc(O)cc(F)c4)c4c(N)ncnc43)n(-c3ccccc3Cl)c(=O)c12
InChIKey: YNTNBHLOAHPKNE-UHFFFAOYSA-N
Target: PI3-kinase p110-delta/p85-alpha (PROTEIN COMPLEX), Homo sapiens
UniProt: O00329
Assay: Inhibition of N-terminal His6-tagged recombinant full-length human p110delta/untagged recombinant full length p85alpha expressed in baculovirus infected Sf21 cells using phosphatidylinositol as substrate in presence of gamma-32P-ATP after 5 mins by thin layer chromatographic method
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 526.96, ALogP 5.23, HBA 8, HBD 2, PSA 111.85, QED 0.32
Compound (SMILES): N#CCC1(n2cc(C(N)=O)c(Nc3ccccc3)n2)CCOCC1
InChIKey: HFZUMJDTVZIGGE-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 = 133 nM (pChEMBL 6.880000114440918)
Descriptors: MW 325.37, ALogP 2.14, HBA 6, HBD 2, PSA 105.96, QED 0.88
Compound (SMILES): Cc1cc(Oc2ncccn2)ccc1-c1cc2c(cc1F)ncc1nc(C)n([C@H]3CCN(C(=O)CO)C[C@@H]3F)c12
InChIKey: HXDYCEVDYKSUGB-OZXSUGGESA-N
Target: Dual specificity mitogen-activated protein kinase kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q02750
Assay: Radioactive Binding Assay: The radioactive filter binding assay is standardized using recombinant human activated BRAF (V599E) kinase (Cat No. 14-557) and kinase dead MEK1 (K97R) (Cat No. 14-737) procured from Upstate. The incorporation of 32P into MEK1 (K97R) by BRAF (V599E) is measured with final assay buffer conditions of 50 mM Tris pH 7.5, 10 mM MgCl2, 1 mM DTT, 100 mM sucrose, 100 μM sodium orthovanadate, 5 μM ATP and 2 μCi [γ 32P] ATP and 500 mg MEK1 Kinase dead substrate. The enzymatic reaction is stopped after 120 minutes with 8N HCl (hydrochloric acid) and 1 mM ATP. The solution is spotted on P81 filter paper and washed 4 times with 0.75% orthophosphoric acid and lastly with acetone. The dried P81 filter papers are read in a Micro-beta Trilux scintillation counter. The final concentration of DMSO is 1% in the assay. Compounds are screened at 10 μM concentration with pre-incubation of the enzymes in the presence of test compound for 45 minutes. Compounds of the invention were found to be inactive in this assy, e.g. ex. 33 (13% inhibition at 10 uM), ex. 1A (0% inhibition at 10 uM).
Measurement: IC50 = 2.6 nM (pChEMBL 8.59000015258789)
Descriptors: MW 544.56, ALogP 4.69, HBA 8, HBD 1, PSA 106.26, QED 0.34
Compound (SMILES): CC1(C)CCC(CN2CCN(c3ccc(C(=O)NS(=O)(=O)c4cnc(OCC5CCOCC5)c(C#N)c4)c(Oc4ccc5[nH]ccc5c4)c3)CC2)=C(c2ccc(Cl)cc2)C1
InChIKey: CVDODIROQCGMPG-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 849.45, ALogP 8.59, HBA 10, HBD 2, PSA 149.88, QED 0.13
Compound (SMILES): Cc1ccc(S(=O)(=O)Nc2ccc3[nH]nc(-c4cccc(NC(=O)/C=C\C(=O)O)c4)c3c2)cc1
InChIKey: VHRBAOFJRSFVHL-QXMHVHEDSA-N
Target: Aurora kinase B (SINGLE PROTEIN), Homo sapiens
UniProt: Q96GD4
Assay: Inhibition of human recombinant full-length His-tagged Aurora B expressed in baculovirus expression system
Measurement: IC50 = 32 nM (pChEMBL 7.5)
Descriptors: MW 476.51, ALogP 3.92, HBA 5, HBD 4, PSA 141.25, QED 0.3
Compound (SMILES): O=C1C(N2CCC(c3ccc(O)cc3)C(F)(F)C2)CCN1Cc1ccc(OC(F)F)cc1
InChIKey: RTDKQGYWDLVPDB-UHFFFAOYSA-N
Target: Glutamate receptor ionotropic, NMDA 2B (SINGLE PROTEIN), Rattus norvegicus
UniProt: Q00960
Assay: Radioligand Binding Assay: To perform the competition binding assay, thawed membrane homogenate was added to each well of a 96-well plate (20 ug/well). The experimental compounds were serially diluted in 100% DMSO and added to each row of the assay plate to achieve desired compound concentrations, keeping the DMSO concentration in the assay plate at 1.33% of the final reaction volume. Next, 3H Ro 25-6981 (4 nM) was added to the assay plate. After incubation for 1 hr at room temperature, the membrane bound radioligand was harvested on to GF/B filter plates (treated with 0.5% PEI for 1 hr at room temperature). The filter plates were dried at 50° C. for 20 mins, incubated with microscint 20 for 10 minutes and finally, the counts were read on TopCount (Perkin Elmer). Non-specific binding was determined using MK-0657 (the preparation of this compound is described as example 1 in WO 2004 108705 (40 uM).
Measurement: Ki = 180 nM (pChEMBL 6.75)
Descriptors: MW 452.45, ALogP 4.22, HBA 4, HBD 1, PSA 53.01, QED 0.67
Compound (SMILES): C[C@H](Nc1nccc(N2C(=O)OC[C@@H]2[C@@H](C)O)n1)c1cnc(-c2cccc(C(F)(F)F)c2)cn1
InChIKey: AIHAGIQAZSVDEI-VEVIJQCQSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: LC-MS Detection of 2-HG Assay: The biochemical reactions were performed at room temperature in 384-well Greiner flat-bottom plates (Costar, Cat. No. 781201) using a final reaction volume of 30 μL and the following assay buffer conditions: 50 mM HEPES pH 7.4, 10 mM MgCl2, 50 mM KCl, 1 mM DTT, 0.02% BSA, 5 uM NADPH and 100 uM alpha-KG. The final reaction mixture contained 3.3% DMSO and inhibitors with concentrations ranging 0.02-50 μM. The IDH1 enzyme was used at a final concentration of 0.25 nM. Following 45 minutes incubation, the reaction mixtures were quenched by the addition of 10 μL of 16% formic acid containing 800 nM of 5-carbon labeled 13C-2-HG). The protein was then precipitated by the addition of 2.5 volumes of acetonitrile followed by centrifugation (3000×g, minutes). The concentration of 2-HG in the resulting supernatants was measured by LC-MS (see below). LC-MS method. Reaction mixture supernatants were submitted to chromatographic separation on a BiobasicAX column (2.1 mm×20 mm, 5 μm particle, Thermo Scientific Inc.). The chromatographic mobile phases were A) 25 mM ammonium biocarbonate and B) acetonitrile (0.1% ammonium hydroxide). Nicotinamide was eluted at 1 ml/min using a 85-5% B gradient over 0.9 minutes (Agilent 1200SL LC system, Thermofisher LX-4 autosampler) and analyzed by multiple reaction monitoring (MRM) on a API4000 QTrap mass spectrometer (ABSciex, Framingham, Mass.) in the positive electrospray ionization (ESI+) mode. The mass transition for 2-HG and 13C-2-HG were 147→129 and 152→134, respectively.
Measurement: IC50 = 36 nM (pChEMBL 7.440000057220459)
Descriptors: MW 474.44, ALogP 3.83, HBA 8, HBD 2, PSA 113.36, QED 0.55
Compound (SMILES): CCCc1ncc(Cc2cnc3ccc(O)c(C(F)(F)F)c3c2)c2cc(OC)c(OC)cc12
InChIKey: MWLFLDJUMFIHDC-UHFFFAOYSA-N
Target: cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A (SINGLE PROTEIN), Homo sapiens
UniProt: Q9Y233
Assay: Diaxonhit Phosphodiesterase Assay: The phosphodiesterase assay was developed using the LANCE cAMP kit (PerkinElmer). The assay buffer contained HBSS with 5 mM HEPES, 0.1% BSA, and 1.5 mM MgCl2, pH 7.4. PDE10A (BPS Bioscience) was used at 200 pg/well (with a specific activity of 3200 pmole/min/ug with assay conditions: 10 mM Tris-HCl, pH 7.4, 10 mM MgCl2, 1 mM MnCl2, 200 uM cAMP, 2.5 kU 5' nucleotidase, 37° C., 20 min) and PDE4D3 (BPS Bioscience) was used at 100 pg/well (with a specific activity of 32713 pmole/min/ug with assay conditions: 10 mM Tris-HCl, pH 7.4, 10 mM MgCl2, 1 mM MnCl2, 200 uM cAMP, 2.5 kU 5' nucleotidase, 37° C., 20 min). The Biotin-cAMP tracer, supplied in 10 mmol/L Tris-HCl buffered (pH 8.0) salt solution with 1 mmol/L ethylenediaminetetraacetic acid (EDTA), 0.1% bovine serum albumin (BSA), and 0.05% sodium azide, is used at a dilution of 1/375. The assay detection mixture contained the LANCE Eu-W8044 labeled streptavidin 1/2250 (supplied in 50 mmol/L Tris-HCl buffer).
Measurement: IC50 = 13 nM (pChEMBL 7.889999866485596)
Descriptors: MW 456.46, ALogP 6.07, HBA 5, HBD 1, PSA 64.47, QED 0.38
Compound (SMILES): O=c1nc2sc3ccccc3n2c(=O)n1-c1ccccc1
InChIKey: FCPXRIBIDATENX-UHFFFAOYSA-N
Target: Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1B (SINGLE PROTEIN), Homo sapiens
UniProt: Q01064
Assay: In Vitro Enzyme Assay: In vitro enzyme assays were conducted via the Ba(OH)2 precipitation method of Wang et al. (32) using recombinant human PDE11A4, PDE10A1, PDE5A1, PDE6C, PDE8A (BPS Bioscience Inc.), PDE7A (BIOMOL International), and PDE4A10 enzymes (gift from HengmingKe), in the presence of 100 nM cGMP, 30 nM cAMP, 500 nM cGMP, 1.7 μM cGMP, 10 nM cAMP, 15 nM cAMP, and 625 nM cAMP, respectively. Inhibitor concentrations that reduce enzyme activity by 50% (IC50) are presented. The values are means of at least three independent experiments.
Measurement: IC50 = 10000 nM (pChEMBL 5)
Descriptors: MW 295.32, ALogP 2.06, HBA 6, HBD 0, PSA 56.37, QED 0.54
Compound (SMILES): CC(c1ccccc1)N1CCC(CC#N)(n2cc(C(N)=O)c(Nc3ccc(F)cc3)n2)CC1
InChIKey: KKUCZNSVYFOTDO-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 = 105 nM (pChEMBL 6.980000019073486)
Descriptors: MW 446.53, ALogP 4.33, HBA 6, HBD 2, PSA 99.97, QED 0.56
Compound (SMILES): O=C(O)c1ccc(-c2cnc(N3CCOCC3)c3nc(CCc4ccc5ccccc5n4)cn23)cc1
InChIKey: ZCIFTLSXHKGTQU-UHFFFAOYSA-N
Target: cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A (SINGLE PROTEIN), Homo sapiens
UniProt: Q9Y233
Assay: In Vitro Assay hPDE10a: Human recombinant PDE10A2 was expressed in Sf9 cells, using a recombinant baculovirus construct containing the full length sequence containing a 6×His sequence following the start Met to allow metal affinity purification of the recombinant protein. Cells were harvested and the phosphodiesterase protein was purified by metal chelate chromatography on Ni-sepharose 6FF.The affinity of the compounds of Formula (I) for phophodiesterases (PDE) was measured by a scintillation proximity assay (SPA). PDE Yttrium Silicate SPA beads allow PDE activity to be measured by direct binding of the primary phosphate groups of non-cyclic AMP or GMP to the beads via a complex iron chelation mechanism. The amount of bound tritiated product ([3H]-AMP) is measured by liquid scintillation counting.The compounds were dissolved and diluted in 100% DMSO in polystyrene plates to a concentration of 100-fold the final concentration in the assay. Human PDE10A enzyme solution (10 uL) was added to 20 μL, of incub
Measurement: IC50 = 3 nM (pChEMBL 8.520000457763672)
Descriptors: MW 479.54, ALogP 4.26, HBA 7, HBD 1, PSA 92.85, QED 0.39
Compound (SMILES): COc1cc(CSc2nnc(-c3ccc4[nH]cnc4c3)o2)cc(OC)c1OC
InChIKey: ZEBAAKBVUHUKBW-UHFFFAOYSA-N
Target: Glutaminyl-peptide cyclotransferase (SINGLE PROTEIN), Homo sapiens
UniProt: Q16769
Assay: Fluorometric Assay: All measurements were performed with a BioAssay Reader HTS-7000Plus for microplates (Perkin Elmer) at 30 C. QC activity was evaluated fluorometrically using H-Gln-beta NA. The samples consisted of 0.2 mM fluorogenic substrate, 0.25 U pyroglutamyl aminopeptidase (Unizyme, Horsholm, Denmark) in 0.2 M Tris/HCl, pH 8.0 containing 20 mM EDTA and an appropriately diluted aliquot of QC in a final volume of 250 ul. Excitation/emission wavelengths were 320/410 nm. The assay reactions were initiated by addition of glutaminyl cyclase. QC activity was determined from a standard curve of beta -naphthylamine under assay conditions. One unit is defined as the amount of QC catalyzing the formation of 1 umol pGlu-beta NA from H-Gln-beta NA per minute under the described conditions.In a second fluorometric assay, QC was activity determined using H-Gln-AMC as substrate. Reactions were carried out at 30 C. utilizing the NOVOStar reader for microplates (BMG labtechnologies).
Measurement: IC50 = 15300 nM (pChEMBL 4.820000171661377)
Descriptors: MW 398.44, ALogP 3.93, HBA 8, HBD 1, PSA 95.29, QED 0.47
Compound (SMILES): C[C@]1(N)CCCN(c2ccncc2Nc2ncc3ccc(-c4c(F)cccc4F)nn23)C1
InChIKey: QVKCJELFCURCFY-QHCPKHFHSA-N
Target: Serine/threonine-protein kinase pim-2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9P1W9
Assay: Inhibition of recombinant Pim2 (unknown origin) by electrochemiluminescence assay
Measurement: IC50 = 2.2 nM (pChEMBL 8.65999984741211)
Descriptors: MW 435.48, ALogP 4.13, HBA 7, HBD 2, PSA 84.37, QED 0.5
Compound (SMILES): COC(=O)N[C@H](C(=O)N1CCC[C@H]1c1ncc(-c2ccc(-c3ccc(-c4ccc5nc([C@@H]6CC7CC7N6C(=O)[C@@H](NC(=O)OC)C(C)C)[nH]c(=O)c5c4)c4c3CC3(CCCC3)C4)c3ccccc23)[nH]1)C(C)C
InChIKey: SXWFOMAQFHYRPU-PSBNCONQSA-N
Target: Nonstructural protein 5A (SINGLE PROTEIN), Hepatitis C virus
UniProt: Q5L478
Assay: Luciferase Assay: The Huh-7 cells transfected with HCV replicons system were seeded into 96-well plates (8,000 cells in 125 μL/well) respectively; each test compound was diluted to desired concentration using 5-fold serial dilutions protocol, 10 doses in duplicate, and added to wells with POD™ 810 Plate Assembler. The plates were incubated in a CO2 incubator for 72 hours; after that, 40 μL of Luciferase assay substrate (Promega Bright-Glo) was added to each well, and detected by a chemiluminescence detection system (Topcount Microplate Scintillation and Luminescence Counter) 5 minutes later; the EC50 (half-maximal effective concentration, concentration for 50% of maximal effect) values of test compounds were analyzed by GraphPad Prism software, respectively. In this paper, experiments were repeated twice and set the holes without compounds as negative control.
Measurement: EC50 = 0.216 nM (pChEMBL 9.670000076293945)
Descriptors: MW 973.19, ALogP 9.55, HBA 9, HBD 4, PSA 191.71, QED 0.1
Compound (SMILES): OCCCCCCCCCCCCCCCC/N=C1/SC[C@@H]2[C@H](O)[C@H](O)CN12
InChIKey: FAQKUJNDGVUWBQ-ALXWBHHPSA-N
Target: Lysosomal acid glucosylceramidase (SINGLE PROTEIN), Homo sapiens
UniProt: P04062
Assay: Inhibition of human beta-glucocerebrosidase using 4-methylumbelliferyl beta-D glycopyranoside as substrate at pH 5 by fluorescence assay
Measurement: IC50 = 55000 nM (pChEMBL 4.260000228881836)
Descriptors: MW 414.66, ALogP 3.95, HBA 5, HBD 3, PSA 76.29, QED 0.33
Compound (SMILES): Cc1c(Nc2nccc(-c3c(-c4cccc(C(=O)Nc5c(F)cccc5F)c4)nc4ccccn34)n2)cccc1OCCN(C)C
InChIKey: BPUKGKZVDASCTI-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 619.68, ALogP 6.98, HBA 8, HBD 2, PSA 96.68, QED 0.17
Compound (SMILES): CC(C)(C)C(=O)N(CCN1[C@@H]2CC[C@H]1C[C@@H](c1cccc(C(N)=O)c1)C2)Cc1c(F)cccc1F.O=C(O)C(F)(F)F
InChIKey: PXLFLAPUOKGYLM-XQJPQCLXSA-N
Target: Delta-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41143
Assay: Displacement of [3H]-diprenorphine from human delta opioid receptor expressed in cell membranes
Measurement: Ki = 100 nM (pChEMBL 7)
Descriptors: MW 483.6, ALogP 4.85, HBA 3, HBD 1, PSA 66.64, QED 0.61
Compound (SMILES): COC(=O)Nc1nc2cc(C3(O)c4ccccc4C(=O)N3c3c(F)cccc3F)ccc2[nH]1
InChIKey: ASSSQRBNSPEOFK-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 450.4, ALogP 3.87, HBA 5, HBD 3, PSA 107.55, QED 0.44
Compound (SMILES): CSc1nnc(-c2ccc3[nH]cc(-c4cccc(N5CCOCC5)n4)c3c2)s1
InChIKey: IZPVJWBTUYHIEP-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase pim-2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9P1W9
Assay: Enzyme Assay: 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 uM. A reference compound was included on each assay plate in order to validate that plate; on
Measurement: IC50 = 2818.32 nM (pChEMBL 5.550000190734863)
Descriptors: MW 409.54, ALogP 4.31, HBA 7, HBD 1, PSA 66.93, QED 0.51
Compound (SMILES): O=C(NCC(c1cnc(C(F)(F)F)nc1)N1CCC(F)(F)CC1)c1c(Cl)cccc1Cl
InChIKey: NZQPTKTVHYZJJL-UHFFFAOYSA-N
Target: P2X purinoceptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q99572
Assay: Fluorescent Imaging Plate Reader (FLIPR) Assay: Briefly, 293-human or mouse P2X7 stable cells were incubated in sucrose buffer, pH 7.4 [KCl (5 mM), NaH2PO42H2O (9.6 mM), HEPES (25 mM), sucrose (280 mM), glucose (5 mM), CaCl2 (0.5 mM), and probenecid (0.1425 g in 3 mL 1N NaOH was added for 500 mL solution)] in 384-well plates. 93-rat P2X7 stable cells were incubated in HHPB (pH 7.4) [consisting of Hank's BSS (1X); HEPES (pH 7.4) (20 mM) (Sigma); probenecid (0.710 g/5 mL 1N NaOH) (Sigma); and BSA (0.05%) (Roche) which was added after the pH had been adjusted] in 384-well plates. Fluo-4 NW dye mix (Molecular Probes, Inc., Eugene, Oreg., USA) was prepared in buffer (see manufacturer's instructions). Cell plates were removed from the 37° C. incubator, the media discarded and then 30 μL of dye was added to each well. Plates were placed in the 37° C., non-CO2 incubator for 30 minutes and then room temperature for 30 minutes. Two sets of drug plates were prepared: A) Mixtures of compound plus agonist were prepared as follows, in order to determine close response: BzATP: 11 point ½ log, diluted in buffer, starting from 1 mM. Testing compounds: 11 point ½ log, diluted in 2% DMSO buffer starting from 10 μM. B) Agonist only mixture was prepared with BzATP at a single concentration in buffer (concentration determined by dose response). Compound mixtures (A) were added to assay plates containing cells and placed at room temperature for 30 minutes, then BzATP (B) was added. Fluorescence was read using the Tetra FLIPR® (Molecular Devices, Inc., Sunnyvale, Calif., USA) and IC50 values were calculated by standard methods to determine antagonist activity.
Measurement: IC50 = 4.7 nM (pChEMBL 8.329999923706055)
Descriptors: MW 483.27, ALogP 5, HBA 4, HBD 1, PSA 58.12, QED 0.61
Compound (SMILES): CSCC[C@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@@H](N)CCCCN)C(C)C)C(C)C)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)O
InChIKey: XEMLJJZYMPZGBS-ITJFCMOYSA-N
Target: Leukocyte surface antigen CD47 (SINGLE PROTEIN), Homo sapiens
UniProt: Q08722
Assay: Binding affinity to CD47 receptor in human NT.115-labeled MEC1 cell membranes after 5 mins by MST assay
Measurement: Kd = 2280 nM (pChEMBL 5.639999866485596)
Descriptors: MW 1384.76
Compound (SMILES): CC(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@H](C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@H](C(=O)N[C@@H](Cc1cnc[nH]1)C(=O)NCC(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(N)=O)C(C)C)C(C)C
InChIKey: FQWCHXRQTZUUMY-PMEGWENGSA-N
Target: Tissue factor pathway inhibitor (SINGLE PROTEIN), Homo sapiens
UniProt: P10646
Assay: Inhibition of C-terminus 10x-His-taged human TFPI-1 (29 to 282 residues) assessed as inhibition of factor 10a using S-2222 substrate incubated for 115 mins by micro-plate reader based assay
Measurement: EC50 = 2480 nM (pChEMBL 5.610000133514404)
Descriptors: MW 2508.96
Compound (SMILES): Cc1nc2ccc(F)c(-c3cc4c([nH]3)C3(CC3)NC4=O)c2nc1NC(C)(C)C
InChIKey: DEJOUBIDXHXKJV-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 384-well plate format. The phosphorylation of biotinylated-BAD (S112) peptide by full length recombinant Pim-1, Pim-2, or Pim-3 protein was detected with streptavidin:Allophycocyanin (APC) conjugate and a europium (Eu) labeled antibody directed against phosphorylated-BAD (S112). Excitation of Eu by a high energy laser light (337 nm) leads to a transfer of energy to the APC molecule, and results in an emission at 665 nm. The fluorescence is directly proportional to the amount of phosphorylated BAD peptide present in the reaction. Compounds were prepared in DMSO by conducting 3-fold serial dilutions to give a 22-point dosing curve having a high dose of 1 μM. A reference compound was included on each assay plate [Costar 3658] in order to validate that plate; on one plate of every assay run, two additional reference compounds were included. The Reaction Buffer consisted of 45 mM Hepes, pH 7.0, 15 mM NaCl, and 1 mM MgCl. The quench/detection buffer consisted of 50 mM Tris, 100 mM NaCl, 0.05% BSA, 0.1% Tween and 3 mM EDTA. Biotinylated BAD peptide (Biopeptide), 10 mM ATP (Sigma), Labeled p-BAD (S112) mAb (Cell Signalling and Perkin Elmer) [with 0.05% BSA and 2 mM DTT added] streptavidin:Allophycocyanin [Perkin Elmer]. Final concentrations either Pim-1 enzyme [5 pM], or Pim-2 enzyme [0.5 pM], DMSO [1%], BLC BAD (S112) [0.5 μM], ATP [1.5 μM], streptavidin:Allophycocyanin [0.002 mg/mL] and biotinylated-BAD (S112) mAb [100 pM]. Initial incubations were carried out at RT (22° C.) for 30 min for both Pim-1 and for Pim-2. Pim enzyme is added to compound in buffer, and plates are incubated of 30 min. Biotinylated BAD and ATP are added and plates are incubated for 1 h. A mixture of labeled p-BAD (S112) mAb and quench/detection buffer are added and incubated for 2 h. Fluorescence was measured by an HTRF® Envision microplate reader.
Measurement: IC50 = 0.52 nM (pChEMBL 9.279999732971191)
Descriptors: MW 379.44, ALogP 4.02, HBA 4, HBD 3, PSA 82.7, QED 0.63
Compound (SMILES): Cc1n[nH]c(C)c1-c1cc(-c2c(C)noc2C)cc2[nH]c(C3CC3)nc12
InChIKey: UVADONZESFBOCU-UHFFFAOYSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: Homogeneous Time Resolved Fluorescence Resonance Energy Transfer (TR-FRET) Assay: Binding of the two tandem bromodomains, BRD4-1 and BRD4-2, to an acetylated histone H4 peptide was measured using a homogeneous time resolved fluorescence resonance energy transfer (TR-FRET) assay. The synthetic peptide containing amino acids 1-18 of histone H4 was acetylated at lysine 5, 8, 12, 16 and conjugated to biotin (SGRGACKGGACKGLGACKGGAACKRH-GSGSK-biotin[SEQ ID NO:1]) was purchased from Millipore. BRD4-1 and BRD4-2 were expressed and purified from Escherichia coli as N-terminal His6-tagged proteins. An XL665 labeled anti-His antibody (Cisbio) was used to specifically bind BRD4 and a cryptate labeled streptavidin protein was used because it specifically recognized the biotinylated H4 peptide. Binding of BRD4 to the peptide resulted in an increase in FRET signal whereas disruption of this protein-peptide interaction with a small molecule inhibitor resulted in a decrease in FRET signal. Assays were performed in 50 mM Hepes (pH 7.5), 150 mM NaCl, 0.1 mg/ml BSA, 0.01% (v/v) Brij, 0.5% (v/v) DMSO and 200 nM H4 peptide at the following concentrations for each BRD4 isoform: 60 nM BRD4-1 and 120 nM BRD4-2. After an assay reaction time of 60 minutes at 25° C., binding was measured with 2 nM crytptate labeled streptavidin and 10 nM anti-His-XL665 antibody. TR-FRET signal was detected on an Envision plate reader (Ex: 320 nm; Em: 615/665 nm; 100 As delay and 200 Î¼s read window). Data were normalized based on a positive (2 Î¼M I-BET) and negative (DMSO) controls and IC50values were calculated from the fit of the dose-response curves to a four-parameter equation. All IC50 values represent geometric mean values of a minimum of four determinations.
Measurement: IC50 = 78.2 nM (pChEMBL 7.110000133514404)
Descriptors: MW 347.42, ALogP 4.72, HBA 4, HBD 2, PSA 83.39, QED 0.56
Compound (SMILES): C[C@]12C=CC(=O)C=C1C1(CC1)C[C@@H]1[C@@H]2CC[C@]2(C)C(c3cccnc3)=CC[C@@H]12
InChIKey: TWCKCVMGTLFGIN-WRUJZFPBSA-N
Target: Steroid 17-alpha-hydroxylase/17,20 lyase (SINGLE PROTEIN), Homo sapiens
UniProt: P05093
Assay: Inhibition of CYP17 in human testicular microsomes using 17alpha-hydroxypregnenolone as substrate assessed as decrease in DHEA levels after 90 mins by ELISA
Measurement: IC50 <= 11 nM (pChEMBL 7.959000110626221)
Descriptors: MW 371.52, ALogP 5.77, HBA 2, HBD 0, PSA 29.96, QED 0.63
Compound (SMILES): CC(c1ccccc1)N1CCN(C(=O)Cn2cc(NC(=O)c3cnn4cccnc34)c(-c3cc(Cl)ccc3OC(F)F)n2)CC1
InChIKey: KFTUSJXAYWVQDM-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 = 1.04 nM (pChEMBL 8.979999542236328)
Descriptors: MW 635.08, ALogP 5.01, HBA 9, HBD 1, PSA 109.89, QED 0.24
Compound (SMILES): C[C@@H]1OC[C@]2(c3cc(NC(=O)c4ccc(F)cn4)ccc3F)NC(=N)C(C)(C)S(=O)(=O)[C@H]12
InChIKey: CNUQXSYODYTLTM-PPJNFFCYSA-N
Target: Beta-secretase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9Y5Z0
Assay: Time-Resolved Endpoint Proteolysis Assay: Inhibitor IC50s at purified human autoBACE-2 are determined in a time-resolved endpoint proteolysis assay that measures hydrolysis of the QSY7-EISEVNLDAEFC-Eu-amide FRET peptide substrate (BACE-HTRF assay). BACE-mediated hydrolysis of this peptide results in an increase in relative fluorescence (RFU) at 620 nm after excitation with 320 nm light. Inhibitor compounds, prepared at 3× the desired final concentration in 1×BACE assay buffer (20 mM sodium acetate pH 5.0, 10% glycerol, 0.1% Brij-35) supplemented with 7.5% DMSO are pre-incubated with an equal volume of autoBACE-2 enzyme diluted in 1×BACE assay buffer (final enzyme concentration 1 nM) in black 384-well NUNC plates for 30 minutes at 30° C. The assay is initiated by addition of an equal volume of the QSY7-EISEVNLDAEFC-Eu-amide substrate (200 nM final concentration, Km=8 μM for 4 μM for autoBACE-2) prepared in 1×BACE assay buffer supplemented with 7.5% DMSO and incubated for 90 minutes at 30° C. DMSO is present at 5% fin
Measurement: Ki = 4 nM (pChEMBL 8.399999618530273)
Descriptors: MW 464.49, ALogP 2.37, HBA 6, HBD 3, PSA 121.24, QED 0.64
Compound (SMILES): CC(C)(C)OC(=O)N1CCC(CC#N)(n2cc(C(N)=O)c(Nc3ccc(C(=O)C(F)(F)F)cc3)n2)CC1
InChIKey: OGYQIQZGHGAOOM-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 = 3 nM (pChEMBL 8.520000457763672)
Descriptors: MW 520.51, ALogP 4.11, HBA 8, HBD 2, PSA 143.34, QED 0.55
Compound (SMILES): CN1CC[C@@H](c2cnc(N)c(-c3ccc(C(=O)N[C@H](CO)c4cccc(Cl)c4)c(F)c3)c2)CC1=O
InChIKey: QPFNXFHQWKPHCC-IQMFZBJNSA-N
Target: Mitogen-activated protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P28482
Assay: ERK2 (20 pM) Kinase Assay: Compound potency against activated ERK2 was determined using a kinase assay that measures ERK2-catalyzed phosphorylation of biotinylated ERKtide peptide substrate ([Biotin]-AHA-K-R-E-L-V-E-P-L-T-P-S-G-E-A-P-N-Q-A-L-L-R-[NH2], the peptide sequence derived from EGF receptor: SEQ ID NO:1). The assay was carried out in 20 mM HEPES [pH 7.5], 5 mM MgCl2, 1 mM DTT, 0.01% Tween-20, 0.05% BSA using 0.02 nM ERK2, 400 nM ERKtide peptide and 35 uM ATP (all concentrations are final in the reaction) in a total volume of 10.25 uL. A 16-point, half-log dilution series of compounds at 41x final concentration was used for generating IC50 curves. Compound dilution series were prepared in 100% DMSO. ERK2 was preincubated with compounds for 30 minutes at ambient temperature. Reaction was initiated by addition of a substrate cocktail of ERKtide peptide and ATP and was allowed to proceed for 4 hours at ambient temperature. Reaction was terminated by addition of 10 uL of a 2x stop buffer consisting of 100 mM Tris-Cl [pH 7.5], 25 mM EDTA, 0.01% Tween 20, 20 ug/mL of AlphaScreen Protein A Acceptor Beads, 20 ug/mL of Streptavidin Donor Beads (PerkinElmer, Waltham, Mass.), and 1:1000 dilution phospho-EGF Receptor (Thr669) antibody (Cat #8808, Cell Signaling Technology, Danvers, Mass.). Terminated reactions were read, after overnight incubation in the dark, on an EnVision Multilabel Plate Reader (PerkinElmer, Waltham, Mass.), with excitation and emission wavelengths set to 680 nm and 570 nm, respectively. IC50 values were determined using a four-parameter fit.
Measurement: IC50 = 1.87 nM (pChEMBL 8.729999542236328)
Descriptors: MW 496.97, ALogP 3.92, HBA 5, HBD 3, PSA 108.55, QED 0.48
Compound (SMILES): NC(=O)[C@@H]1CCCN1c1nc(-c2ccc(Oc3ccc(F)cc3)cc2)c2ccccc2n1
InChIKey: VVNDFKHXAQQSPP-QFIPXVFZSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: Electrophysiology Assay: After establishing the whole-cell configuration in voltage clamp mode, voltage protocols were run to establish the 1) test potential, 2) holding potential, and 3) the conditioning potential for each cell. After establishing the whole-cell configuration in voltage clamp mode, a standard I-V protocol was run to determine the potential at which the maximal current (Imax) is elicited. This potential was the test potential (Vt). To determine a conditioning potential at which 100% of channels were in the inactivated state, a standard steady-state inactivation (SSIN) protocol was run using a series of fifteen 100 ms-long depolarizing prepulses, incrementing in 10 mV steps, immediately followed by a 5 ms testing pulse, Vt, to Vmax. This protocol also permitted determination of the holding potential at which all channels are in the resting state.
Measurement: Ki = 190 nM (pChEMBL 6.71999979019165)
Descriptors: MW 428.47, ALogP 4.68, HBA 5, HBD 1, PSA 81.34, QED 0.5
Compound (SMILES): CN1C(=O)CCc2cc(-c3cncc4c3CCCN4CCN)ccc21
InChIKey: TZELLUZARLORKL-UHFFFAOYSA-N
Target: Cytochrome P450 11B1, mitochondrial (SINGLE PROTEIN), Homo sapiens
UniProt: P15538
Assay: Cellular Enzyme Assay: The expression plasmids contains the ORF for either human/cyno CYP11B1 or CYP11B2 under the control of a suitable promoter (CMV-promoter) and a suitable resistance marker (neomycin). Using standard techniques the expression plasmid is transfected into G-402 cells and these cells are then selected for expressing the given resistance markers. Individual cell-clones are then selected and assessed for displaying the desired enzymatic activity using 11-Deoxycorticosterone (Cyp11B2) or 11-Deoxycortisol (Cyp11B1) as a substrate. 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 μg/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 μM 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 = 1880 nM (pChEMBL 5.730000019073486)
Descriptors: MW 336.44, ALogP 2.37, HBA 4, HBD 1, PSA 62.46, QED 0.93
Compound (SMILES): Cc1cc(N2CCN(c3ncccc3C#N)CC2)n2ncnc2n1
InChIKey: IFFRIAVWVXMAOC-UHFFFAOYSA-N
Target: Acetylcholinesterase (SINGLE PROTEIN), Electrophorus electricus
UniProt: O42275
Assay: Inhibition of electric eel AChE preincubated for 5 mins followed by addition of acetylthiocholine iodide as substrate measured after 2 mins by Ellman's method
Measurement: IC50 = 1390 nM (pChEMBL 5.860000133514404)
Descriptors: MW 320.36, ALogP 1.03, HBA 8, HBD 0, PSA 86.24, QED 0.7