lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): COc1cc(OCc2cccc(NC(=O)c3cc(F)ccc3C)c2)c2cc(-c3cn4nc(OC)sc4n3)oc2c1
InChIKey: KAISFMWMXNGVGJ-UHFFFAOYSA-N
Target: Proteinase-activated receptor 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q96RI0
Assay: FLIPR Assay in PAR4-Expressing HEK293 Cells: FLIPR-based calcium mobilization assay in HEK293 cells was used to measure PAR4 antagonism, agonism, and selectivity against PAR1. The activity of the PAR4 antagonists of the present invention were tested in PAR4 expressing cells by monitoring H-Ala-Phe(4-F)-Pro-Gly-Trp-Leu-Val-Lys-Asn-Gly-NH2-induced intracellular calcium mobilization. Counter screens for agonist activity and PAR1 antagonist activity were also performed. Briefly, PAR1/PAR4-expressing HEK293 cells were grown in DMEM (Life Technology, Grand Island, N.Y.) containing 10% heat-inactivated FBS, 1% Penicillin-Streptomycin, 10 μg/mL blasticidin, and 100 μg/mL Zeocin at 37° C. with 5% CO2. Cells were plated overnight prior to the experiment in a black 384-well Purecoat Amine clear bottom plate (Becton Dickinson Biosciences, San Jose, Calif.) at 10,000 cells/well in 30 μL growth medium and incubated in a humidified chamber at 37° C. with 5% CO2 overnight. Prior to compound addition, the cell medium was replaced with 40 L of 1× calcium and magnesium-containing Hank's Balanced Saline Solution (HBSS) (with 20 mM HEPES) and 1:1000 diluted fluorescent calcium indicator (Codex Biosolutions, Gaithersburg, Md.). After a 30 minute incubation period at 37° C. and a further 30 minute incubation and equilibration period at room temperature, 20 μL test compound (diluted in 1× HBSS buffer) was added at various concentrations at 0.17% dimethyl sulfoxide (DMSO) final concentration. Changes in fluorescence intensity were measured using a Functional Drug Screening System (FDSS, Hamamatsu, Japan) to determine agonist activities. The cells were then incubated for 30 minutes at room temperature followed by addition of 20 μL of agonist peptide for antagonist activity measurement. The PAR4 agonist peptide (H-Ala-Phe(4-F)-Pro-Gly-Trp-Leu-Val-Lys-Asn-Gly-NH2) and the PAR1 agonist peptide (SFFLRR) were routinely tested to ensure a proper response at the EC50 value in the assay (5 μM for PAR4 agonist peptide and 2 μM for PAR1 agonist peptide). Compound potency was derived from 11-point concentration-response curves.
Measurement: EC50 = 1.7 nM (pChEMBL 8.770000457763672)
Descriptors: MW 558.59, ALogP 6.5, HBA 9, HBD 1, PSA 100.12, QED 0.23
Compound (SMILES): Cc1nsc(-n2c(=O)n(CCN(C)C)c3ccc(S(=O)(=O)NC4(CF)CC4)cc32)n1
InChIKey: FPLMEUTVYURLPT-UHFFFAOYSA-N
Target: Poly(ADP-ribose) glycohydrolase (SINGLE PROTEIN), Homo sapiens
UniProt: Q86W56
Assay: PARG Assay: PARG In vitro assays were conducted in a total volume of 15 ul in a standard 384 well format. 5 ul of Human Full Length PARG (Produced internally by Astra Zeneca), used at a final reaction concentration of 80 μM, was added to 5 ul of Ribosylated PARP substrate (also produced internally by Astra Zeneca) at final reaction concentration of 4.5 nM in assay buffer (50 mM Tris pH7.4, 0.1 mg/ml BSA, 3 mM EDTA, 0.4 mM EGTA, 1 mM DTT, 0.01% Tween 20, 50 mM KCl). The reaction was incubated at room temperature for 10 minutes and then 5 ul detection reagent was added. Detection Reagent consists of 42 nM MAb Anti-6HIS XL665 (CisBio: 61 HISXLB) and 2.25 nM Streptavidin Europium Cryptate (CisBio: 610SAKLB), both at 3× working stock concentrations (final concentrations of 14 nM and 0.75 nM respectively), in a detection buffer of 50 mM Tris pH7.4, BSA at 0.1 mg/ml and KF at 100 mM. Following incubation at room temperature for 60 minutes in the dark, TR-FRET signal was measured at Ex 340 and Em 665 and Em 620. A ratio was calculated as Em665/EM620×104 for each well and used to calculate percent inhibition for test compounds.
Measurement: EC50 = 4228 nM (pChEMBL 5.369999885559082)
Descriptors: MW 454.55, ALogP 1.29, HBA 9, HBD 1, PSA 102.12, QED 0.55
Compound (SMILES): Cc1c(-c2cc3cc(NC(=O)OC4C5COC[C@@H]4CN(C)C5)ncc3c(N)c2F)cnc2c1NCCO2
InChIKey: OWVAYEDVTBDECH-AUQUDXJZSA-N
Target: Mitogen-activated protein kinase kinase kinase kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q92918
Assay: TBD: TBD
Measurement: Ki < 0.013 nM (pChEMBL 10.88599967956543)
Descriptors: MW 508.55, ALogP 3.26, HBA 9, HBD 3, PSA 123.86, QED 0.46
Compound (SMILES): CC(=O)N[C@@H](C)CO[C@H]1CC[C@H](Oc2nc3c(F)cc(OC4CC4)cc3n2C)CC1
InChIKey: PKIZITQRNOQNPZ-QRTARXTBSA-N
Target: Acetyl-CoA carboxylase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O00763
Assay: Inhibitory Activity on Human ACC1 and the ACC2: Recombinant human ACC1 and recombinant human ACC2, which were prepared by the method mentioned above, were preincubated with assay buffer solution (50 mM HEPES-KOH (pH 7.4), 10 mM magnesium chloride, 6-10 mM potassium citrate, 4 mM reduced form of glutathione, 1.5 mg/ml bovine serum albumin) for one hour. Then, 0.2 μL of each this invention compound solution (in DMSO) were dispensed to 384-well microplate, 5 μL of the preincubated enzyme solution and 5 μL of substrate solution (50 mM HEPES-KOH (pH 7.4), 1 mM ATP, 0.8 mM acetyl CoA and 25-50 mM potassium bicarbonate) were added to microplate. After centrifugation and shaking, the reaction mixtures were incubated in a humidified box at room temperature for 1 to 3 hours. After the incubation, the enzyme reactions were stopped by the addition of EDTA. Then, after the samples were cocrystallized with CHCA (α-cyano-4-hydroxy cinnamic acid) matrices on MALDI target plate, by using the matrix assist laser deionization time-of-flight mass spectrometer (MALDI-TOF MS), samples were measured in reflector negative mode. Deprotonated ions of acetyl CoA (AcCoA) of substrate and malonyl CoA (MalCoA) of the reaction product were detected, then, the conversion rates of acetyl CoA to malonyl CoA was calculated by the intensity of [MalCoA-H]−/(Intensity of [MalCoA-H]−+Intensity of [AcCoA-H]−) using each signal strength. The 50% inhibitory concentration (IC50) was calculated from the inhibition rate of the enzymatic reaction at each concentration of the compounds. In addition, potassium citrate concentrations in assay buffer solution, potassium hydrogen carbonate concentrations in substrate solution and incubation time were adjusted by each lot of enzyme.
Measurement: IC50 = 4 nM (pChEMBL 8.399999618530273)
Descriptors: MW 419.5, ALogP 3.48, HBA 6, HBD 1, PSA 74.61, QED 0.71
Compound (SMILES): Cn1c(N2CCC(N)CC2)nc(-c2ccc(C#N)c(F)c2)cc1=O
InChIKey: SNUBSDVPKFGNFQ-UHFFFAOYSA-N
Target: Lysine-specific histone demethylase 1A (SINGLE PROTEIN), Homo sapiens
UniProt: O60341
Assay: In Vitro Enzyme Inhibition Assay: The enzymatic assay of LSD1 activity is based on Time Resolved-Fluorescence Resonance Energy Transfer (TR-FRET) detection. The inhibitory properties of compounds to LSD1 were determined in 384-well plate format under the following reaction conditions: 0.1-0.5 nM LSD1, 50 nM H3K4mel-biotin labeled peptide (Anaspec cat #64355), 2 μM FAD in assay buffer of 50 mM HEPES, pH7.3, 10 mM NaCl, 0.005% Brij35, 0.5 mM TCEP, 0.2 mg/ml BSA. Reaction product was determined quantitatively by TR-FRET after the addition of detection reagent Phycolink Streptavidin-allophycocyanin (Prozyme) and Europium-anti-unmodified histone H3 lysine 4 (H3K4) antibody (PerkinElmer) in the presence of LSD1 inhibitor such as 1.8 mM of Tranylcypromine hydrochloride (2-PCPA) in LANCE detection buffer (PerkinElmer) to final concentration of 12.5 nM and 0.25 nM respectively.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 327.36, ALogP 1.39, HBA 6, HBD 1, PSA 87.94, QED 0.9
Compound (SMILES): COCc1ccc(-n2ncc3c(c2=O)CCC(c2ccc(C)cc2C)C3)nc1
InChIKey: DPAVDDMZJBZYIX-UHFFFAOYSA-N
Target: Metabotropic glutamate receptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q14831
Assay: In Vitro Pharmacology: The HTRF-based assays from CisBio Bioassays allow the measure of different cell signaling pathways, notably those allowing the determination of the production of the second messenger inositol phosphate (IP). IP1 production was determined using the IP-One HTRF kit (CisBio Bioassays), a competitive immunoassay using cryptate-labeled anti-IP1 antibody and d2-labeled IP.
Measurement: IC50 < 500 nM (pChEMBL 6.301000118255615)
Descriptors: MW 375.47, ALogP 3.66, HBA 5, HBD 0, PSA 57.01, QED 0.7
Compound (SMILES): CCC(CC)n1cnnc1-c1cccc(N2Cc3c(cc(C4(C)CC4)nc3CN)C2=O)n1
InChIKey: MTAXSWMJQAZALE-UHFFFAOYSA-N
Target: Mitogen-activated protein kinase kinase kinase kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q92918
Assay: HPK1 Biochemical Enzyme Assay: HPK1 enzyme inhibition was measured using a microfluidic mobility shift assay (MSA). The reactions were conducted in 50 μL volumes in 96-well plates, and contained 0.5 nM human full-length recombinant HPK1, 3 μM phosphoacceptor peptide, 5FAM-AKRRRLSSLRA-COOH (CPC Scientific, Sunnyvale, Calif.), test compound (11-dose 3-fold serial dilutions, 2% DMSO final) or DMSO only, 0.002% Tween-20, 1 mM DTT and 2.5 mM MgCl2 in 50 mM MOPS (3-(N-morpholino)propanesulfonic acid), pH 7.8, buffer and were initiated by addition of 75 μM ATP, following a 20-min preincubation. The reactions were conducted for 60 min at 37° C., stopped by the addition of 50 μL of 0.015 M EDTA, pH 8, and the extent of reactions (15-20% conversion with no inhibitor) was determined after electrophoretic separation of the fluorescently labeled peptide substrate and phosphorylated product on an LabChip EZ Reader II (PerkinElmer, Inc., Waltham, Mass.).Inhibition of HPK1 was also measured using the fluorescence based chelation-enhanced fluorescence (CHEF) method (1), using a proprietary fluorescent peptide substrate, in which a cysteine residue is alkylated with a sulfonamido-oxine based derivative to afford an amino acid termed C-Sox (CSx). The assay was conducted similarly as described for the MSA method above, but using 3 μM Ac-[CSx]HSLPRFNR-amide peptide substrate (also known as AQT0178 when purchased from AssayQuant Technologies Inc., Hopkinton, Mass.) and 45 μM ATP. Initial reaction velocities were determined by following the peptide fluorescence (λex=360 nm, λem=500 nm) at 30° C. for 15 min in a Tecan M1000 plate reader (Tecan Group Ltd., Männedorf, Zürich, Switzerland). The inhibition constant (Ki) values were calculated by fitting the % conversion based (MSA method) or fluorescence based initial velocities (CHEF method) to the Morrison equation (2) for tight-binding competitive inhibition using non-linear regression method and an experimentally measured ATP Km (29 μM by MSA and 19 μM by CHEF, respectively). The inhibitors were shown to be ATP-competitive from kinetic and crystallographic studies. HPK1 protein was produced in-house and preactivated by autophosphorylation of enzyme with MgATP as described in the section Production of recombinant autophosphorylated full-length HPK1.
Measurement: Ki = 0.8 nM (pChEMBL 9.100000381469727)
Descriptors: MW 431.54, ALogP 3.77, HBA 7, HBD 1, PSA 102.82, QED 0.61
Compound (SMILES): Cn1nc(C(=O)NC[C@]2(O)CC[C@@H](S(C)(=O)=O)C[C@H]2O)c(Cl)c1-c1ccc(CCCC(F)(F)F)cc1OC(F)F
InChIKey: UBGPUYTXKZGFBN-KFOHMRLHSA-N
Target: Nuclear receptor ROR-gamma (SINGLE PROTEIN), Homo sapiens
UniProt: P51449
Assay: ThermoFluor Assay: ThermoFluor® experiments were carried out using instruments owned by Janssen Research and Development, L.L.C. through its acquisition of 3-Dimensional Pharmaceuticals, Inc. 1,8-ANS (Invitrogen) was used as a fluorescent dye. Protein and compound solutions are dispensed into black 384-well polypropylene PCR microplates (Abgene) and overlayed with silicone oil (1 μL, Fluka, type DC 200) to prevent evaporation. Bar-coded assay plates are robotically loaded onto a thermostatically controlled PCR-type thermal block and then heated at a typical ramp-rate of 1° C./min for all experiments. Fluorescence was measured by continuous illumination with UV light (Hamamatsu LC6) supplied via fiber optic and filtered through a band-pass filter (380-400 nm; >6 OD cutoff). Fluorescence emission of the entire 384-well plate was detected by measuring light intensity using a CCD camera (Sensys, Roper Scientific) filtered to detect 500±25 nm, resulting in simultaneous and independent readings of all 384 wells. Images were collected at each temperature, and the sum of the pixel intensity in a given area of the assay plate was recorded versus temperature.
Measurement: Kd = 39 nM (pChEMBL 7.409999847412109)
Descriptors: MW 618.02, ALogP 3.65, HBA 8, HBD 3, PSA 130.75, QED 0.35
Compound (SMILES): Cc1cc(C(=O)Nc2ccc(-c3n[nH]c(=O)c4ccccc34)cc2)nn1C(C)(C)C
InChIKey: BVAZEOFKTMNEHK-UHFFFAOYSA-N
Target: Rho-associated protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q13464
Assay: In Vitro Assay: The effectiveness of compounds of the present invention as ROCK inhibitors can be determined in a 30 μL assay containing 20 mM HEPES, pH 7.5, 20 mM MgCl2, 0.015% Brij-35, 4 mM DTT, 5 μM ATP and 1.5 μM peptide substrate (FITC-AHA-AKRRRLSSLRA-OH). Compounds were dissolved in DMSO so that the final concentration of DMSO was <2%, and the reaction was initiated with Rho kinase variants. After incubation, the reaction was terminated by the addition of EDTA and the phosphorylated and non-phosphorylated peptides separated using a LABCHIP® 3000 Reader (Caliper Life Sciences). Controls consisted of assays that did not contain compound, and backgrounds consisted of assays that contained enzyme and substrate but had EDTA from the beginning of the reaction to inhibit kinase activity. Compounds were tested in dose-response format, and the inhibition of kinase activity was calculated at each concentration of compound. The inhibition data were fit using a curve-fitting program to determine the IC50; i.e., the concentration of compound required to inhibit 50% of kinase activity.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 401.47, ALogP 4.1, HBA 5, HBD 2, PSA 92.67, QED 0.54
Compound (SMILES): Cc1nonc1Cn1ncc2c(N3CCC(F)(F)C3)nc(C(C)(C)C)nc21
InChIKey: YLOBYAWMYVSJMP-UHFFFAOYSA-N
Target: Cannabinoid receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P34972
Assay: cAMP Assay: CHO cells expressing human CB1 or CB2 receptors are seeded 17-24 hours prior to the experiment 50.000 cells per well in a black 96 well plate with flat clear bottom (Corning Costar #3904) in DMEM (Invitrogen No. 31331), lx HT supplement, with 10% fetal calf serum and incubated at 5% CO2 and 37° C. in a humidified incubator. The growth medium was exchanged with Krebs Ringer Bicarbonate buffer with 1 mM IBMX and incubated at 30° C. for 30 min. Compounds were added to a final assay volume of 100 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% NaN3) 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 as follows: FRET=T730-Alexa730-P(T645-B645) with P=Ru730-B730/Ru645-B645, where T730 is the test well measured at 730 nM, T645 is the test well measured at 645 nm, B730 and B645 are the buffer controls at 730 nm and 645 nm, respectively. cAMP content is determined from the function of a standard curve spanning from 10 uM to 0.13 nM cAMP. EC50 values were determined using Activity Base analysis (ID Business Solution, Limited). The EC50 values for a wide range of cannabinoid agonists generated from this assay were in agreement with the values published in the scientific literature.
Measurement: EC50 = 0.5 nM (pChEMBL 9.300000190734863)
Descriptors: MW 377.4, ALogP 2.71, HBA 8, HBD 0, PSA 85.76, QED 0.69
Compound (SMILES): COc1cc2nc(N)n3nc([C@@H]4CC[C@H](C)N(c5cnn(C6CCCC6O)c5)C4)nc3c2cc1F
InChIKey: WDRQPLGESLXZBM-BVVYEMPESA-N
Target: Adenosine receptor A2a (SINGLE PROTEIN), Homo sapiens
UniProt: P29274
Assay: Measurement of A2a Binding Affinity Using Radioligand Binding: 148 μL (5 μg/mL) membranes (Perkin Elmer, Cat. No. RBHA2aM400UA) and 2 μL compounds of the invention to be tested (test compound) were transferred to individual wells of a 96-well polypropylene assay plate and incubated for 15 to 30 minutes at room temperature. [3H] SCH58261 ((7-(2-phenylethyl)-5-amino-2-(2-furyl)-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidine)) was diluted in assay buffer (50 mM Tris pH 7.4, 10 mM MgCl2, 0.005% Tween20) to a concentration of 4 nM and 50 μL transferred to each well of the assay plate. To define total and non-specific binding, wells containing 1% DMSO and 1 μM ZM241385 (Tocris Bioscience, Cat. No. 1036) respectively, were also included. The assay plate was incubated at room temperature for 60 minutes with agitation. Using a FilterMate Harvester® (Perkin Elmer), the contents of the assay plate were filtered through a UniFilter-96® PEI coated plate (Perkin Elmer Cat. No. 6005274 or 6005277). Filtering was achieved by aspirating the contents of the assay plate for 5 seconds, then washing and aspirating the contents three times with ice-cooled wash buffer (50 mM Tris-HCl pH 7.4, 150 mM NaCl) and allowing the vacuum manifold to dry the plate for 30 seconds. The filter plate was incubated for at least 1 hour at 55° C., and allowed to dry. The bottom of the filter plate was sealed with backing tape. 40 μL Ultima Gold (Perkin Elmer, Cat. No. 6013329) was added to each well of the filter plate and the top of the plate was sealed with TopSeal-A PLUS® clear plate seal (Perkin Elmer, Cat. No. 6050185). The plate was incubated for at least 20 minutes, and then the amount of radioactivity remaining in each well was determined using a TopCount® (Perkin Elmer) scintillation counter. After normalization to total and non-specific binding, the percent effect at each compound concentration was calculated. The plot of percent effect versus the log of compound concentration was analyzed electronically using a 4-parameter logistic fit based on the Levenberg-Marquardt algorithm to generate IC50 values.
Measurement: IC50 = 0.1 nM (pChEMBL 10)
Descriptors: MW 480.55, ALogP 3.06, HBA 10, HBD 2, PSA 119.62, QED 0.46
Compound (SMILES): Cn1cc(-c2cc(-c3ccc(N4CCN(CCN5CCOCC5)CC4)nc3)c3c(C#N)cnn3c2)cn1
InChIKey: UAVJWXJVWRTGNR-UHFFFAOYSA-N
Target: Proto-oncogene tyrosine-protein kinase receptor Ret (SINGLE PROTEIN), Homo sapiens
UniProt: P07949
Assay: RET Enzyme Assay: Compounds of General Formula I were screened for their ability to inhibit wild type and V804M mutant RET kinase using CisBio's HTRF® KinEASE -TK assay technology. Briefly, N-terminal GST tagged recombinant human RET cytoplasmic domain (aa 658-end) from Eurofins (0.25 nM RET; Cat. No. 14-570M) or N-terminal GST tagged recombinant human V804M mutant RET cytoplasmic domain (aa 658-end) from Millipore (0.25 nM enzyme; Cat. No. 14-760) was incubated with 250 nM TK-substrate biotin (CisBio, part of Cat. No. 62TK0PEC) and 1 mM ATP along with test compound in a buffer consisting of 25 mM HEPES pH 7.4, 10 mM MgCl2, 0.01% Triton X-100, and 2% DMSO in a volume of 8 μL. Compounds were typically prepared in a threefold serial dilution in DMSO and added to the assay to give the appropriate final concentration. After a 30-minute incubation at 22° C., the reaction was quenched by adding 8 μL of quench solution containing 31.25 nM Sa-XL665 and 1×TK-ab-Cryptate in HTRF detection buffer (all from CisBio, part of Cat. No. 62TK0PEC). After a 1 hour incubation at 22° C., the extent of reaction was determined using a PerkinElmer EnVision multimode plate reader via HTRF dual wavelength detection, and the percent of control (POC) was calculated using a ratiometric emission factor. 100 POC was determined using no test compounds and 0 POC was determined using pre-quenched control reactions. The POC values were fit to a 4 parameter logistic curve, and the IC50 is defined as the concentration of inhibitor at which the POC equals 50 for the fitted curve.
Measurement: IC50 = 45.1 nM (pChEMBL 7.349999904632568)
Descriptors: MW 497.61, ALogP 2.12, HBA 10, HBD 0, PSA 90.75, QED 0.4
Compound (SMILES): CNCc1ccc(-c2cc(-c3nc(-c4ccc(=O)n(C)c4)cnc3N)on2)cc1
InChIKey: WRKZMXFIOHMHMA-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase ATR (SINGLE PROTEIN), Homo sapiens
UniProt: Q13535
Assay: Inhibition Assay: Compounds were screened for their ability to inhibit ATR kinase using a radioactive-phosphate incorporation assay. Assays were carried out in a mixture of 50 mM Tris/HCl (pH 7.5), 10 mM MgCl2 and 1 mM DTT. Final substrate concentrations were 10 μM [γ-33P]ATP (3 mCi 33P ATP/mmol ATP, Perkin Elmer) and 800 μM target peptide (ASELPASQPQPFSAKKK).Assays were carried out at 25° C. in the presence of 5 nM full-length ATR. An assay stock buffer solution was prepared containing all of the reagents listed above, with the exception of ATP and the test compound of interest. 13.5 μL of the stock solution was placed in a 96 well plate followed by addition of 2 μL of DMSO stock containing serial dilutions of the test compound (typically starting from a final concentration of 15 μM with 3-fold serial dilutions) in duplicate (final DMSO concentration 7%). The plate was pre-incubated for 10 minutes at 25° C. and the reaction initiated by addition of 15 μL [γ-33P]ATP (final concentration 10 μM).The reaction was stopped after 24 hours by the addition of 30 μL 0.1 M phosphoric acid containing 2 mM ATP. A multiscreen phosphocellulose filter 96-well plate (Millipore, Cat no. MAPHNOB50) was pretreated with 100 μL 0.2M phosphoric acid prior to the addition of 45 μL of the stopped assay mixture. The plate was washed with 5×200 μL 0.2M phosphoric acid. After drying, 100 μL Optiphase SuperMix liquid scintillation cocktail (Perkin Elmer) was added to the well prior to scintillation counting (1450 Microbeta Liquid Scintillation Counter, Wallac).
Measurement: Ki < 5 nM (pChEMBL 8.300999641418457)
Descriptors: MW 388.43, ALogP 2.47, HBA 8, HBD 2, PSA 111.86, QED 0.54
Compound (SMILES): Cc1nn2c(C3CCNCC3)cc(=O)[nH]c2c1C(=O)O
InChIKey: BJNSNIXTCNOKGX-UHFFFAOYSA-N
Target: Tissue-type plasminogen activator (SINGLE PROTEIN), Homo sapiens
UniProt: P00750
Assay: Plasma-based Clot Lysis Assay: The clot-lysis test system configures the kinetics of clot formation and degradation in vitro and allows quantifying modulation of the process by selected test compounds.The test compounds were dissolved in 1% acetic acid and further complemented with an equal volume of DMSO. The resulting stock solutions were serially diluted in 0.5% acetic acid/50% DMSO. 1 μL aliquots of these solutions were placed into 384 well microplates (Greiner, black, transparent bottom), followed by 30 μL of diluted human citrated plasma (platelet-poor, final concentration: 5%; supplemented with fibrinogen, final concentration: 3 μM; dilution buffer: 20 mM HEPES, 150 mM NaCl, 0.01% Brij (pH 7)). The reactions were started by addition of 20 μL of CaCl2 (final concentration: 10 mM), and tPA (tissue plasminogen activator, final concentration: 0.2 nM) in dilution buffer, followed by an additional volume of 20 μL dilution buffer for improved mixing. The reactions were incubated at 37° C. Clot formation and degradation was monitored spectrophotometrically by kinetic optical density measurements at 405 nm. IC50 values were determined by comparing the resulting time courses with the time course of a blank control reaction.
Measurement: IC50 = 460 nM (pChEMBL 6.340000152587891)
Descriptors: MW 276.3, ALogP 0.5, HBA 5, HBD 3, PSA 99.49, QED 0.74
Compound (SMILES): CCCC[C@@H](C)[C@@H](O)[C@H]1C(=O)N[C@@H](CC)C(=O)N(C)[C@H](C)C(=O)N(C)[C@@H]([C@H](C)COCCN2CCOCC2)C(=O)N[C@@H](C(C)C)C(=O)N(C)[C@@H](CC(C)C)C(=O)N[C@@H](C)C(=O)N[C@H](C)C(=O)N(C)[C@@H](CC(C)C)C(=O)N(C)[C@@H](CC(C)C)C(=O)N(C)[C@@H](C(C)C)C(=O)N1C
InChIKey: OZADGEHSNRWYIM-UVUXFCPUSA-N
Target: Peptidyl-prolyl cis-trans isomerase A (SINGLE PROTEIN), Homo sapiens
UniProt: P62937
Assay: Surface Plasmon Resonance (SPR) Assay: Binding of inhibitors to expressed cyclophilins was determined using surface plasmon resonance (SPR) experiments. Briefly, avi-tagged cyclophilin proteins with mono-biotinylation were immobilized onto a Biotin CAPture chip (GE Healthcare, cat. #28920234). SPR experiments were carried out on an upgraded Biacore T200 system using a running buffer containing the inhibitor, 10 mM HEPES, pH 7.4, 150 mM NaCl, 0.05% P20, and 3% DMSO. Single-cycle kinetics measurements were used to study the interactions between cyclophilin inhibitors and different cyclophlins. Accordingly, compound at various concentrations was injected to the flow cells with a contact time of 1 min each at a flow rate of 50 μL/min. The final dissociation phase lasts for 10 min following the sample injection. Data was analyzed using Biacore T200 Evaluation Software Version 1.0 and a 1:1 binding model was applied to fit the data to obtain kon, koff, and KD.
Measurement: Kd = 2.1 nM (pChEMBL 8.680000305175781)
Descriptors: MW 1333.81
Compound (SMILES): C[C@@H]1CC(=O)Nc2cccc(-c3cccc(C#N)c3)c2N1
InChIKey: ANNLVJSIVHNMDY-LLVKDONJSA-N
Target: CREB-binding protein (SINGLE PROTEIN), Homo sapiens
UniProt: Q92793
Assay: CBP TR-FRET Binding Assay: His/Flag epitope tagged CBP was cloned, expressed, and purified to homogeneity. CBP binding and inhibition was assessed by monitoring the engagement of a biotinylated small molecule compound with the target using the TR-FRET assay technology (Perkin-Elmer). Specifically, in a 384 well ProxiPlate CBP (4 nM final) was combined with biotin-ligand (60 nM final) in 50 mM HEPES (pH 7.5), 50 mM NaCl, 1 mM TCEP, 0.01% (w/v) BSA, and 0.008% (w/v) Brij-35 either in the presence of DMSO (final 0.2% DMSO) or compound dilution series in DMSO. After 10 minutes incubation at room temperature, a mixture Eu-W1024 Anti-6×His antibody (Perkin Elmer ADO 110) and SureLight Allophycocyanin-Streptavidin (APC-SA, Perkin Elmer CR130-100) were added to a final concentrations of 0.2 nMolar antibody and 50 nMolar APC-SA, respectively. After twenty minutes of equilibration, the plates were read on an Envision instrument and IC50s calculated using a four parameter non-linear curve fit.
Measurement: IC50 = 291 nM (pChEMBL 6.539999961853027)
Descriptors: MW 277.33, ALogP 3.37, HBA 3, HBD 2, PSA 64.92, QED 0.84
Compound (SMILES): Cc1ccc(C(=O)NC2CC2)cc1-c1cnn(-c2cncc(OCC3CC3)c2)c1
InChIKey: PWNFJDAYEGNHCU-UHFFFAOYSA-N
Target: Receptor-interacting serine/threonine-protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O43353
Assay: V9103X ADP-Glo Kinase Assay Custom: In a 384-well plate, test compound diluted in assay buffer (1% DMSO final) is mixed with 8His-RIPK2 FL enzyme (final concentration of 8 nM). After 15 minutes of pre-incubation at RT, ATP dissolved in assay buffer is added (final concentration 5 μM). The mixture is incubated for 60 minutes at 37° C. in a humidified incubator. Then, ADP Glo Reagent is added, followed by a 40 minute incubation at rt. Finally, Kinase Detection Reagent is added and the entire mixture is incubated for 40 min at RT. The luminescence signal is measured with an Envision reader to determine the amount of ADP produced. Assay buffer: 25 mM HEPES (4-(2-hydroxyethyl)-1-piperazinethanesulfonic acid), 0.1% BSA (bovine serum albumin), 10 mM MgCl2, 5 mM MnCl2, 50 mM KCl, 0.01% CHAPS (3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate), 10 μM Na3VO4, 1 mM DTT (dithiothreitol), pH 7.5 All plates contain wells with vehicle controls instead of compound (1% DMSO) as reference for the high signal (100% CTL (100% of control), high signal), and wells without enzyme as reference for low signal (0% CTL, low signal). The luminescent signal generated is proportional to the ADP produced and is correlated with enzyme activity. The analysis of the data is performed by the calculation of the percentage of ADP production in the presence of the test compound and RIPK2 as compared to the ADP production in the presence of RIPK2 plus 50 μM Gefitinib.
Measurement: IC50 = 6.1 nM (pChEMBL 8.210000038146973)
Descriptors: MW 388.47, ALogP 3.92, HBA 5, HBD 1, PSA 69.04, QED 0.67
Compound (SMILES): CN(C)C(=O)/C=C/CCC(OC(=O)N(C)C)C(=O)Nc1cccn(Cc2cc3cc(F)ccc3[nH]2)c1=O
InChIKey: ZZYLXCSONPCPRT-UXBLZVDNSA-N
Target: Mitogen-activated protein kinase kinase kinase kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q92918
Assay: HPK1 Biochemical Enzyme Assay: HPK1 biochemical enzyme assay: HPK1 enzyme inhibition was measured using a microfluidic mobility shift assay. Reactions were performed in a 384-well plate, containing 1.5 nM HPK1 (Invitrogen), in assay buffer (Carna Biosciences; pH 7.4). Test compounds were titrated in ten point curves (top final assay concentration 3 μM), and preincubated with enzyme/substrate mix for 30 min prior to initiation of the reaction by addition of ATP (1 mM final concentration) and substrate (1 μM final concentration; Carna Biosciences) diluted in assay buffer supplemented by MgCl2 (final assay concentration of 5 mM). Following 60 min incubation at RT, the reaction was terminated by addition of 60 μl/well termination buffer (Carna Biosciences) and signal determination using a Caliper EZ Reader (Perkin Elmer, UK).
Measurement: IC50 = 2750 nM (pChEMBL 5.559999942779541)
Descriptors: MW 511.55, ALogP 2.95, HBA 6, HBD 2, PSA 116.74, QED 0.43
Compound (SMILES): CC(C)C1Oc2c(cc(C(=O)N(C)C)cc2-c2cn(C)c(=O)c3[nH]ccc23)NC1=O
InChIKey: XLCCRKYGUWVTNE-UHFFFAOYSA-N
Target: Bromodomain-containing protein 4 (SINGLE PROTEIN), Homo sapiens
UniProt: O60885
Assay: BRD4 AlphaScreen Assay: BRD4-BD1 and BRD4-BD2 assays were conducted in white 384-well polystyrene plate in a final volume of 40 μL for BD1 and 60 μL for BD2. Inhibitors were first serially diluted in DMSO and added to the plate wells before the addition of other reaction components. The final concentration of DMSO in the assay was 1.25% (BD1) and 0.83% (BD2). The assays were carried out at room temperature in the assay buffer (50 mM Tris-HCl, pH 7.5, 0.01% Tween-20, 0.01% BSA, 5 mM DTT), containing 50 nM Biotin-labeled tetra-acetylated histone H4 peptide (H4Ac4) and BRD4-BD1 or BRD4-BD2 protein at concentration less than 1 nM. The incubation for 75 min. was followed by the addition of 20 μL of assay buffer supplemented with Streptavidin donor beads (PerkinElmer 6760002) and GSH Acceptor beads (PerkinElmer-AL109C) at final concentration 2-4 μg/mL under reduced light. After plate sealing, the plate was incubated in the dark at room temperature for 75 min. before reading on a PHERAstar FS plate reader (BMG Labtech). IC50 determination was performed by fitting the curve of percent control activity versus the log of the inhibitor concentration using the GraphPad Prism 5.0 software.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 408.46, ALogP 2.59, HBA 5, HBD 2, PSA 96.43, QED 0.7
Compound (SMILES): C[C@H](NC(=O)c1nc(C#N)cnc1NCc1ccc(-c2cnc(N)c(O[C@@H]3CCNC3)n2)cc1)c1ccc(F)c(F)c1
InChIKey: WMHMTOWQBJAMIT-HRAATJIYSA-N
Target: 3-phosphoinositide-dependent protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O15530
Assay: PDK1 kinase assay: PDK1 (amino acids 51-359) and AKT2 (amino acids 140-467 fused to PIFtide, amino acids EEQEMFRDFDYIADW) were expressed as N-terminally tagged GST fusion proteins in insect cells and purified to homogeneity. Enzyme activity was determined in a coupled PDK1/AKT/FAM-crosstide assay and phosphorylation of FAM-crosstide was determined by standard IMAP protocol (Molecular Devices). For inhibition studies, compounds were titrated 4-fold in DMSO and diluted 40-fold into assay buffer (10 mM Tris HCl pH7.2; 10 mM MgCl2; 0.01% Triton X-100; 1 mM DTT) containing PDK1, AKT2, and FAM-crosstide (final concentrations: 0.75 nM PDK1, 10 nM unphosphorylated AKT2, and 100 nM crosstide substrate). The kinase reaction was initiated by adding ATP to a final concentration of 40 μM of PDK1 and incubated at 25° C. for 30 min. To detect assay product, the kinase reaction was combined with Progressive Binding Solution (1:600 Progressive Binding Reagent, 50% Buffer A, 50% Buffer B, Molecular Devices) in a 1:3 ratio. The mixture was incubated for 2 hours at 25° C. and the plate was scanned on an Analyst AD with excitation at 485 nm and emission at 530 nm. The fluorescence polarization value P is defined by the equation below. The value mP is generated by multiplying the P value for each reaction well by a factor of 1000. The value ΔmP for each well is the mP value for that well minus the mP value for the average negative control. P=(Fpar−Fperp)/(Fpar+Fperp)  Eq.:Where par is fluorescence intensity parallel to the excitation plane; and perp is fluorescence intensity perpendicular to the excitation plane. ΔmP values were plotted as a function of compound concentration and the data were analyzed with a 4-parameter fit using GraphPad Prism software.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 571.59, ALogP 3.51, HBA 10, HBD 4, PSA 163.76, QED 0.23
Compound (SMILES): Cc1nn(C2CC(C#N)C2)cc1Nc1ncc(Cl)c(OCC2CCC(O)CC2)n1
InChIKey: QOLXNNDTBCBSFF-UHFFFAOYSA-N
Target: Leucine-rich repeat serine/threonine-protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q5S007
Assay: LRRK2 Enzymatic Assay: LRRKtide substrate (peptide sequence RLGRDKYKTLRQIRQ, derived from human ezrin [amino acids 561-573], moesin [amino acids 539-553] and radixin [amino acids 558-570], obtained from SignalChem, catalogue #L10-58, reconstituted in 20 mM Tris-HCl at pH 7.5 to a final concentration of 1 mg/mL, assay concentration 20 μM) and recombinant human LRRK2 (catalytic domain only [amino acids 970-2527], GST-tagged, expressed in insect cells, obtained from ThermoFisher Scientific, catalogue #PV4874, 0.35 mg/mL, assay concentration 30 nM) were mixed in assay buffer (20 mM Hepes pH 7.5, 10 mM MgCl, 1 mM EGTA, 0.02% Brij35, 0.02 mg/ml BSA, 0.1 mM NaVO, 2 mM DTT, 1% DMSO). Compounds of interest (in DMSO, serial 3-fold dilution from 10 μM to 0.5 nM) or control (1% DMSO) were dispensed into the kinase reaction mixture by Acoustic technology (Echo550; nanoliter range). After incubation at room temperature for 20 minutes, the kinase reaction was initiated by addition of [P]-ATP (Specific activity 10 μCi/μl) and the mixture was incubated at room temperature for 2 hours. The reaction was then stopped by spotting the reaction mixture on strips of phosphocellulose P81 paper. Following washing, the radioactivity of the P81 paper was measured and kinase activity data were expressed as the percent remaining kinase activity in test samples compared to vehicle (dimethyl sulfoxide) reactions.
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 416.91, ALogP 3.78, HBA 8, HBD 2, PSA 108.88, QED 0.74
Compound (SMILES): COc1ccc(-c2ccc3cc(-c4nc5cc(C(=O)N6C[C@H]7CC[C@@H]6[C@@H]7N)cc(OC)c5n4C)n(CC4CC4)c3c2)c(F)c1
InChIKey: SSYOFAFJYVGCJY-GENJTUHGSA-N
Target: Protein-arginine deiminase type-4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UM07
Assay: Rapid-Fire Mass Spectrum (RFMS) Assay: Compounds were solubilized in 100% DMSO to achieve a 10 mM compound concentration. Compound stock solutions were stored at RT. A series of dilutions were prepared in DMSO and mixed 8 times with 20 μL mixing volume. Final top concentration of compound in the assay is 50 μM. Final assay conditions were as follows:Reaction volume: 26 μlAssay buffer: 25 mM hepes, pH 7.5, 5 mM NaCl, 1 mM DTT, 0.2 mg/ml BSA, 0.01% CHAPS, 50 μM Calcium, and 5 μM TPENFinal concentrations: 5 nM hPAD4 enzyme, 250 μM BAEE, and 0.5% DMSOTotal incubation time: 30 mins compound and enzyme preincubation at 37° C., 90 min enzyme/substrate reaction, 30 min reaction with phenyl glyoxal at 37° C.Stop solution: 40 μl 5% TCA in ACN
Measurement: IC50 = 42 nM (pChEMBL 7.380000114440918)
Descriptors: MW 593.7, ALogP 5.99, HBA 7, HBD 1, PSA 87.54, QED 0.25
Compound (SMILES): N#Cc1cnc(C(=O)Nc2ccc3[nH]nc(-c4ccoc4)c3c2)c(Br)c1
InChIKey: UCRHOBNCAGRKRD-UHFFFAOYSA-N
Target: Leucine-rich repeat serine/threonine-protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q5S007
Assay: LanthaScreen Kinase Activity Assay: The assay was carried out under the following protocol conditions: 1 mM compound in DMSO was serially diluted 1:3, 11 points in DMSO with a Biomek FX and 0.1 μL of the diluted compound was subsequently stamped into the assay plate (384-well format Lumitrac 200, Greiner, 781075) with an Echo Labcyte such that the final compound concentration in the assay was 10 μM to 169 μM. Subsequently, 5 μL of 2× kinase solution (2.9 nM final concentration) was added to the assay plate in assay buffer composed of 50 mM Tris pH 8.5 (Sigma, T6791), 5 mM MgCl2 (Fluka, 63020), 1 mM EGTA (Sigma, E3889), 0.01% BRIJ-35 (Sigma, P1254) and 2 mM DTT. The reaction was started by addition of 2×ATP/LRRKtide solution in assay buffer such that the final concentration was 400 nM LRRKtide and 25 μM ATP. After 60 min incubation at room temperature, the reaction was stopped by addition of 10 μL of 2× stop solution containing a final concentration of 2 nM anti-pERM antibody and 10 mM EDTA. After a 30 min incubation at RT, the TR-FRET signal was measured on a Wallac 2104 EnVision multilabel reader at an excitation wavelength of 340 nm and reading emission at 520 nm and 495 nm. The ratio of the 520 nm and 495 nm emission was used to analyze the data.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 408.22, ALogP 4.1, HBA 5, HBD 2, PSA 107.6, QED 0.53
Compound (SMILES): Cc1cc(-c2[nH]c3ccc(C4CCN(Cc5nnc(C6CC6)o5)CC4)cc3c2C(C)C)cc(C)n1
InChIKey: MBTIGMMCLGOBKW-UHFFFAOYSA-N
Target: Toll-like receptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYK1
Assay: Inhibition Reporter Assay: HEK-Blue-cells (Invivogen) overexpressing human TLR7, TLR8 or TLR9 receptors were used for screening inhibitors of these receptors using an inducible SEAP (secreted embryonic alkaline phosphatase) reporter gene under the control of the IFN-β minimal promoter fused to five NF-κB and AP-1-binding sites. Briefly, cells are seeded into Greiner 384 well plates (15000 cells per well for TLR7, 20,000 for TLR8 and 25,000 for TLR9) and then treated with test compounds in DMSO to yield a final dose response concentration range of 0.05 nM-50 μM. After a 30 minute compound pre-treatment at room temperature, the cells are then stimulated with a TLR7 ligand (gardiquimod at a final concentration of 7.5 μM), TLR8 ligand (R848 at a final concentration of 15.9 μM) or TLR9 ligand (ODN2006 at a final concentration of 5 nM) to activate NF-κB and AP-1 which induce the production of SEAP. After a 22 hour incubation at 37° C., 5% CO2, SEAP levels are determined with the addition of HEK-Blue Detection reagent (Invivogen), a cell culture medium that allows for detection of SEAP, according to manufacturer's specifications.
Measurement: IC50 = 51.2 nM (pChEMBL 7.289999961853027)
Descriptors: MW 469.63, ALogP 6.61, HBA 5, HBD 1, PSA 70.84, QED 0.34
Compound (SMILES): CCNC(=O)Cc1ccn(-c2cc(-c3c(F)cccc3F)nc3c2C(=O)NC3)n1
InChIKey: YRXDNULUWCPUMJ-UHFFFAOYSA-N
Target: Non-receptor tyrosine-protein kinase TYK2 (SINGLE PROTEIN), Homo sapiens
UniProt: P29597
Assay: Caliper Assay: The caliper machine employs an off chip mobility shift assay to detect phosphorylated peptide substrates from kinase assays, using microfluidics technology. The assays are carried out at ATP concentration equivalent to the ATP Km, and at 1 mM ATP. Compounds are serially diluted in DMSO then further diluted in assay buffer (25 mM HEPES, pH 7.5, 0.01% Brij-35, 0.01% Triton, 0.5 mM EGTA). 5 ul of diluted compound was added into wells first, then 10 ul of enzyme mix was added into wells, followed by 10 uL of substrate mix (peptide and ATP in 10 mM MgCl2) to start reaction. Reaction was incubated at 28° C. for 25 min and then added 25 ul stop buffer (100 mM HEPES, 0.015% Brij-35, 50 mM EDTA), followed by reading with Caliper. JAK2 at 1 nM final concentration and TYK2 at 9.75 nM are from Carna, and substrates used are ATP at 20 and 16 uM, respectively. JAK2 assay uses peptide 22 and TYK2 uses peptide 30 (Caliper), each at 3 uM.
Measurement: Ki = 55 nM (pChEMBL 7.260000228881836)
Descriptors: MW 397.39, ALogP 2.13, HBA 5, HBD 2, PSA 88.91, QED 0.69
Compound (SMILES): CCOc1cc2c(=O)oc(-c3ccccc3S(C)(=O)=O)nc2cc1OC
InChIKey: UNPMSHQAFOCFFH-UHFFFAOYSA-N
Target: Kallikrein-7 (SINGLE PROTEIN), Homo sapiens
UniProt: P49862
Assay: KLK7 Assay: Materials: Recombinant human KLK7, Substrate S-2586 (Chromogenics, cat. no. 820894) KLK7 activity was determined at 37° C. in 10 mM Na phosphate pH 7.2, 0.5 M NaCl, with final concentrations of 2.5 ug/ml (100 nM) of KLK7, 1.0 mM substrate, 5% DMSO in the presence of 0 uM, 0.1 uM, 0.5 uM, 1.0 uM and 5 uM of inhibitor, in 96 well plates by measuring absorbance at 405 nm in a plate reader (Spectramax).
Measurement: Ki = 230 nM (pChEMBL 6.639999866485596)
Descriptors: MW 375.4, ALogP 2.67, HBA 7, HBD 0, PSA 95.7, QED 0.68
Compound (SMILES): CC[C@@H](C(=O)Nc1cccc(Br)n1)N(C)C(=O)Cn1nc(C(C)=O)c2cc(-c3cnc(C)nc3)ccc21
InChIKey: QSUQPMVIDWWCHY-FQEVSTJZSA-N
Target: Complement factor D (SINGLE PROTEIN), Homo sapiens
UniProt: P00746
Assay: Human Factor D Assay: Human Factor D (purified from human serum, Complement Technology, Inc.) at 80 nM final concentration is incubated with test compound at various concentrations for 5 min at room temperature in 50 mM Tris, 1M NaCl, pH 7.5. A synthetic substrate Z-L-Lys-SBzl and DTNB (Ellman's reagent) are added to final concentrations of 100 μM each. Absorbance at 405 nm (A405) is recorded at 30 second intervals for 30 min using a microplate spectrophotometer. IC50 values are calculated by nonlinear regression of complement Factor D reaction rates as a function of test compound concentration.
Measurement: IC50 = 5500 nM (pChEMBL 5.260000228881836)
Descriptors: MW 564.44, ALogP 4.04, HBA 8, HBD 1, PSA 122.97, QED 0.25
Compound (SMILES): COc1cc2ncnc(N3CCC(CP(=O)(O)O)CC3)c2cc1OC
InChIKey: OTIAQJVMFAJGTJ-UHFFFAOYSA-N
Target: Ectonucleotide pyrophosphatase/phosphodiesterase family member 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P22413
Assay: ENPP1 Activity Assay: Selected compounds of Table 1, Table 2 and other derivatives were prepared and assessed in an ENPP1 activity assay using thymidine monophosphate paranitrophenol (TMP-pNP) as a substrate. Enzyme reactions were prepared with TMP-pNP (2 μM), 5-fold dilutions of ENPP1 inhibitor, and purified recombinant mouse ENPP1 (0.5 nM) in 100 mM Tris, 150 mM NaCl, 2 mM CaCl2, 200 μM ZnCl2, pH 7.5 at room temperature. Reaction progress was monitored by measuring absorbance at 400 nm of paranitrophenolate produced by the reaction for 20 minutes. Slopes of product formation were extracted, plotted, and fit to obtain IC50 values with Graphpad Prism 7.03. Compounds were also assessed in an ENPP1 enzyme activity assay using 32P cGAMP as a substrate. Radiolabeled32P cGAMP was synthesized by incubating unlabeled ATP (1 mM) and GTP (1 mM) doped with 32P-ATP with 2 μM purified recombinant porcine cGAS in 20 mM Tris pH 7.5, 2 mM MgCl2, 100 μg/mL herring testes DNA overnight at room temperature, and the remaining nucleotide starting materials were degraded with alkaline phosphatase for 4 h at 37° C. The probe 32P-cGAMP (5 μM) was incubated with purified recombinant mouse ENPP1 (20 nM) in 100 mM Tris, 150 mM NaCl, 2 mM CaCl2, 200 μM ZnCl2, pH 7.5 at room temperature for 5 hours. To generate enzyme inhibition curves, 5-fold dilutions of ENPP1 inhibitor were included in the reaction. Degradation was evaluated by TLC (as described by Li et al. Nat. Chem. Biol. (2014) 10:1043-8). Plates were exposed on a phosphor screen (Molecular Dynamics) and imaged on a Typhoon 9400 and the 32P signal was quantified using ImageJ. Inhibition curves were fit to obtain IC50 values using Graphpad Prism 7.03.
Measurement: IC50 < 500 nM (pChEMBL 6.301000118255615)
Descriptors: MW 367.34, ALogP 2.04, HBA 6, HBD 2, PSA 105.01, QED 0.77
Compound (SMILES): CS(=O)(=O)NC(=O)c1ccc(COc2cc(F)cc(-c3ccnc(OCC4CC4)c3)c2)cc1
InChIKey: OQLANALYIMMLKH-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: EFS-FRET Assay: This screen is used to determine the effects of compounds on human Nav1.7 channels, utilizing electrical field stimulation (EFS) system in 96-well plate format on FDSS (Hamamatsu Photonics) platform. The changes of membrane potential are monitored with FRET dye pair, DiSBAC2(3) and PTS 18.
Measurement: IC50 < 500 nM (pChEMBL 6.301000118255615)
Descriptors: MW 470.52, ALogP 3.94, HBA 6, HBD 1, PSA 94.59, QED 0.51
Compound (SMILES): COC1CCN(c2ncc(OC/C(=C/F)CN)cn2)CC1
InChIKey: BAFWVBYUHNFONP-IZZDOVSWSA-N
Target: Amine oxidase [copper-containing] 3 (SINGLE PROTEIN), Homo sapiens
UniProt: Q16853
Assay: In Vitro Activity Assay: Amine oxidase activity of recombinant SSAO, MAOa, and MAOb isoforms are measured using the MAO-Glo assay kit from Promega (V1402). Test compounds (with DMSO as vehicle, 0.5% v/v for SSAO) and the enzyme are incubated for 10 mins at room temperature before the addition of the luminogenic substrate. The substrate concentration is 10 μM for human recombinant SSAO. The assays are conducted in a pH 7.4 buffer (50 mM HEPES, 120 mM NaCl, 5 mM KCl, 2 mM CaCl2, 1.4 mM MgCl2, 0.001% Tween-20) in a well-plate. Oxidation of the substrate is conducted for 2 hrs before the addition of detecting reagent according the manufacture's protocol. The IC50 value of the tested compounds is calculated by fitting the dose response curve using a 4-parameter non-linear regression routine.
Measurement: IC50 = 12 nM (pChEMBL 7.920000076293945)
Descriptors: MW 296.35, ALogP 1.28, HBA 6, HBD 1, PSA 73.5, QED 0.85
Compound (SMILES): CC(=O)N1CCC(c2cc(C)nc3nc(NCc4cccc(C(F)F)c4)nn23)CC1
InChIKey: GSAGVCKZHRREPK-UHFFFAOYSA-N
Target: cGMP-dependent 3',5'-cyclic phosphodiesterase (SINGLE PROTEIN), Homo sapiens
UniProt: O00408
Assay: IMAP TR-FRET-based phosphodiesterase assay: An IMAP TR-FRET-based phosphodiesterase assay was developed using the PDE2A isoform. IMAP technology is based on high-affinity binding of phosphate by immobilized metal (MIII) coordination complexes on nanoparticles. The IMAP binding reagent recognizes phosphate groups on AMP or GMP generated from cAMP or cGMP in a PDE reaction. Cyclic nucleotides that carry a phosphodiester bond and not a free phosphate are not recognized by the binding reagent. The time resolved fluorescence resonance energy transfer (TR-FRET) is afforded by a Terbium (Tb)-Donor pre-bound to the nanoparticles. FRET occurs when the fluorescent-labeled AMP or GMP product of a PDE reaction binds and comes into close proximity to the Tb-Donor complex. Due to the long lifetime of Tb fluorescence, detection can be run in time-resolved mode to reduce or eliminate interference from auto-fluorescent compounds.The IMAP TR-FRET PDE2A assay was performed in 1536-well white plates. A total of 250 pg per well of FLAG-tagged PDE2A1 (amino acids 2-941) was dispensed in 2.5 μL IMAP assay buffer consisting of 10 mM Tris pH 7.2, 10 mM MgCl2, 1 mM DTT, and 0.1% fatty acid free BSA. 30 nL of compound was then added from 1 mM stocks in DMSO using a Kalypsys Pintool. Plates were incubated for 5 min at room temperature before dispensing 1.5 μL of 533 nM FAM-cAMP substrate for a final concentration of 200 nM. Following a brief centrifugation, plates were incubated for 30 min at room temperature. The assay was terminated by adding 5 μL IMAP binding reagent Tb complex to each well which was prepared according to manufacturer's recommendations (Molecular Devices). Plates were incubated an additional 90 minutes at room temperature and read on a Viewlux plate reader. All compounds were solvated at a concentration of 10 mM in DMSO and tested in 11-point half-log dose-response. Curve fitting and IC50 values were determined using a standard four parameter fit.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 414.46, ALogP 3.71, HBA 6, HBD 1, PSA 75.42, QED 0.69