lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): O=c1[nH]c2cc(CN3CCN(c4nc5cc(Cl)ccc5o4)CC3)ccc2c2c1CCCN2
InChIKey: KJLFPHLLVUYURJ-UHFFFAOYSA-N
Target: Poly [ADP-ribose] polymerase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P09874
Assay: Inhibition Assay: The PARP-1 enzyme inhibitory activities of the compounds of the present invention were assayed in the following manner by use of a kit (cat. 80551) purchased from BPS Bioscience.The 96-well plate provided in BPS Bioscience kit was coated with histone and incubated at 4° C. for 16 hours. Then, the plate was washed four times with PBST (7.5 mM Na2HPO4, 2.5 mM NaH2PO4, 145 mM NaCl, 0.05% Tween 20, pH 7.4), and blocking buffer (provided in BPS Bioscience kit) was added thereto in order to block nonspecific reaction, and was then incubated at 25° C. for 1 hour. After incubation for 1 hour, the plate was washed four times with PBST, and varying concentrations of each of the compounds of the Examples were added to a reaction solution containing PARP-1 enzyme (50 ng/well), an assay mixture and activated DNA, and allowed to react at 25° C. for 1 hour. After 1 hour, each well was washed four times with PBST, and in order to measure the level of ribosylation by PARP enzyme, streptavidin-linked peroxidase (Strep-HRP, 1:50 dilution) was added and allowed to react at 25° C. for 30 minutes. The plate was washed four times with PBST, and then finally an HRP chemiluminescent substrate was added and allowed to react. The level of histone ribosylation formed by each enzyme was quantified using Synergy H4 Hybrid Multi-Mode Microplate Reader (BioTek Instruments, Inc., USA).
Measurement: IC50 = 15.9 nM (pChEMBL 7.800000190734863)
Descriptors: MW 449.94, ALogP 4, HBA 6, HBD 2, PSA 77.4, QED 0.49
Compound (SMILES): CCC(c1ccc(OC(F)F)cc1)N1C[C@H](C)N(c2nc(=O)n(C)c3ccc(C#N)nc23)C[C@H]1CC
InChIKey: FKWOBRNPWQEVCD-FZWXSHBKSA-N
Target: Diacylglycerol kinase alpha (SINGLE PROTEIN), Homo sapiens
UniProt: P23743
Assay: In Vitro DGK Inhibition Assay: The reactions were carried out in 50 mM MOPS pH 7.5, 100 mM NaCl, 10 mM MgCl2, 1 μM CaCl2, and 1 mM DTT (assay buffer). The reactions using a detergent/lipid micelle substrate also contained 50 mM octyl B-D-glucopyranoside. The lipid substrate concentrations were 11 mM PS and 1 mM DAG for the detergent/lipid micelle reactions. The lipid substrate concentrations were 2 mM PS, 0.25 mM DAG, and 2.75 mM PC for the extruded liposome reactions (5 mM total lipid). The reactions were carried out in 150 μM ATP. The enzyme concentrations for the DGKα and DGKζ were 5 nM. The compound inhibition studies were carried out as follows: 25 nL (ADPGLO assay) or 50 nL (LIPGLO assay) droplets of each test compound (top concentration 10 mM with 11 point, 3-fold dilution series for each compound) solubilized in DMSO were transferred to wells of a white 1536 well plate (Corning 3725). A 5 mL enzyme/lipid substrate solution at 2× final reaction concentration was prepared by combining 2.5 mL 4× enzyme solution (20 nM DGKα or DGKζ (prepared as described below) in assay buffer) and 2.5 mL of either 4× liposome or 4× detergent/lipid micelle solution (compositions described below) and incubated at room temperature for 10 minutes. Next, 1 μL 2× enzyme/lipid substrate solution was added to wells containing the test compound and reactions were initiated with the addition of 1 μL 300 uM ATP. The reactions were allowed to proceed for 2 hr (ADPGLO assay) or 1 hr (LIPGLO assay), after which 2 μL Glo Reagent (Promega V9101) was added and incubated for 40 minutes. Next, 4 μL Kinase Detection Reagent was added and incubated for 30 minutes. Luminescence was recorded using an EnVision microplate reader. The percent inhibition was calculated from the ATP conversion generated by no enzyme control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition.
Measurement: IC50 = 36 nM (pChEMBL 7.440000057220459)
Descriptors: MW 496.56, ALogP 4.24, HBA 8, HBD 0, PSA 87.28, QED 0.48
Compound (SMILES): CC(=O)N[C@@H](C)C(=O)N(C)[C@@H](CC(C)(C)C)C(=O)N1C[C@]2(C[C@H]1C#N)C(=O)Nc1ccccc12
InChIKey: YADVSJPXIGTGGX-URXKWEQPSA-N
Target: Replicase polyprotein 1ab (SINGLE PROTEIN), Severe acute respiratory syndrome coronavirus 2
UniProt: P0DTD1
Assay: Protease Fluorescence Assay (FRET): Recombinant SARS-CoV-2 3CL-protease was expressed and purified. TAMIRA-SITSAVLQSGFRKMK-Dabcyl-OH peptide 3CLpro substrate was synthesized. Black, low volume, round-bottom, 384 well microplates were used. In a typical assay, 0.85 μL of test compound was dissolved in DMSO then incubated with SARS-CoV-2 3CL-protease (10 nM) in 10 μL assay buffer (50 mM HEPES [pH 7.5], 1 mM DTT, 0.0100 BSA, 0.01% Triton-X 100) for 30 min at RT. Next, 10 μL of 3CL-protease substrate (40 μM) in assay buffer was added and the assays were monitored continuously for 1 h in an Envision multimode plate reader operating in fluorescence kinetics mode with excitation at 540 nm and emission at 580 nm at RT. No compound (DMSO only) and no enzyme controls were routinely included in each plate. All experiments were run in duplicate. Data Analysis: SARS-CoV-2 3CL-protease enzyme activity was measured as initial velocity of the linear phase (RFU/s) and normalized to controlled samples DMSO (10000 activity) and no enzyme (000 activity) to determine percent residual activity at various concentrations of test compounds (0-10 μM).
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 467.57, ALogP 1.79, HBA 5, HBD 2, PSA 122.61, QED 0.68
Compound (SMILES): COc1nc(C)c(-c2cc(C(F)(F)F)c3c(N)ncnn23)cc1C(=O)NCCC(O)(c1ccccc1)C(F)(F)F
InChIKey: KWWWLXUDQGWHNW-UHFFFAOYSA-N
Target: Receptor-interacting serine/threonine-protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q13546
Assay: RIPK1 HTRF Binding Assay: A solution was prepared containing 0.2 nM Anti GST-Tb (Cisbio, 61GSTTLB), 90.6 nM probe and 1 nM His-GST-TVMV-hRIPK1(1-324) in FRET Buffer (20 mM HEPES, 10 mM MgCl2, 0.015% Brij-35, 4 mM DTT, 0.05 mg/mL BSA). Using Formulatrix Tempest, the detection antibody/enzyme/probe solution (2 mL) was dispensed into wells of a 1536 plate (Black Low Binding Polystyrene 1536 Plate (Corning, 3724)) containing 10 nL of compounds of interest at appropriate concentration in DMSO. The plate was incubated at rt for 1 h. FRET was measured using the EnVision plate reader (Excitation: 340 nM, Emission: 520 nM/495 nM). Total signal (0% inhibition) was calculated from wells containing 10 nL DMSO only. Blank signal (100% inhibition) calculated from wells containing 10 nL of 15 nM staurosporine and internal controls.
Measurement: IC50 = 91000 nM (pChEMBL 4.039999961853027)
Descriptors: MW 568.48, ALogP 4.28, HBA 8, HBD 3, PSA 127.66, QED 0.28
Compound (SMILES): CNc1cc(Nc2cccn([C@H]3CCOC[C@H]3OC)c2=O)nc2c(C(=O)NC3CC[C@@H]3F)cnn12
InChIKey: LNMREBSQNNGVCO-UNPWZGGWSA-N
Target: Non-receptor tyrosine-protein kinase TYK2 (SINGLE PROTEIN), Homo sapiens
UniProt: P29597
Assay: TYK2 JH2 Domain Binding Assay: The binding reaction was assembled by combining 16 μl of DNA-tagged kinase extract, 3.8 μl liganded affinity beads, and 0.18 μl test compound (PBS/0.05% Tween 20/10 mM DTT/0.1% BSA/2 μg/ml sonicated salmon sperm DNA)]. Extracts were used directly in binding assays without any enzyme purification steps at a ≥10,000-fold overall stock dilution (final DNA-tagged enzyme concentration <0.1 nM). Extracts were loaded with DNA-tag and diluted into the binding reaction in a two step process. First extracts were diluted 1:100 in 1× binding buffer (PBS/0.05% Tween 20/10 mM DTT/0.1% BSA/2 μg/ml sonicated salmon sperm DNA) containing 10 nM DNA-tag. This dilution was allowed to equilibrate at room temperature for 15 minutes and then subsequently diluted 1:100 in 1× binding buffer. Test compounds were prepared as 111× stocks in 100% DMSO. Kds were determined using an 11-point 3-fold compound dilution series with three DMSO control points. All compounds for Kd measurements are distributed by acoustic transfer (non-contact dispensing) in 100% DMSO
Measurement: Kd = 5.5 nM (pChEMBL 8.260000228881836)
Descriptors: MW 485.52, ALogP 1.88, HBA 10, HBD 3, PSA 123.81, QED 0.46
Compound (SMILES): CC(=O)NC[C@@H]1CC[C@@H](Nc2ncnc3[nH]cc(C(=O)c4ccc(Oc5ccccc5)cc4)c23)CO1
InChIKey: AOAUFFVVWPGUFW-KNQAVFIVSA-N
Target: Tyrosine-protein kinase BTK (SINGLE PROTEIN), Homo sapiens
UniProt: Q06187
Assay: Mobility Shift Assay (MSA) Type B: The active BTK assay consisted of phosphorylated form of full length BTK. The assay was performed in a buffer solution utilized in the inactive BTK assay. The enzyme inhibitor complexes was incubated for 30 minutes at the room temperature and the kinase activation reaction was initiated by the addition of 1 μM Srctide peptide substrate and 16M ATP. After incubation at room temperature for 60 minutes, the reaction was stopped and the mobility shift was measured as described above for the inactive BTK assay. The data of inactive and active BTK assays was fit to a 4 parameter logistic model to calculate the IC50 value.
Measurement: IC50 = 1.6 nM (pChEMBL 8.800000190734863)
Descriptors: MW 485.54, ALogP 4.08, HBA 7, HBD 3, PSA 118.23, QED 0.32
Compound (SMILES): CC(C)CS(=O)(=O)N1CCC([C@@H](NC2CCCCC2)C(=O)N2CCN(C(=O)Oc3ccccc3Cl)C[C@H]2C(=O)NCc2cccs2)CC1
InChIKey: QAGPMJBCOFEWJR-IGYGKHONSA-N
Target: Coagulation factor XII (SINGLE PROTEIN), Homo sapiens
UniProt: P00748
Assay: Factor XIIa Assay: The effectiveness of a compound of the present invention as an inhibitor of Coagulation Factor XIIa can be determined using a relevant purified serine protease, and an appropriate synthetic substrate. The rate of hydrolysis of the chromogenic or fluorogenic substrate by the relevant serine protease was measured both in the absence and presence of compounds of the present invention. Assays were conducted at room temperature or at 37° C. Hydrolysis of the substrate resulted in release of amino trifluoromethylcoumarin (AFC), which was monitored spectrofluorometrically by measuring the increase in emission at 510 nm with excitation at 405 nm. A decrease in the rate of fluorescence change in the presence of inhibitor is indicative of enzyme inhibition. Such methods are known to one skilled in the art. The results of this assay are expressed as the IC50, the inhibitor concentration causing a 50% decrease in Factor XIIa protease activity.Factor XIIa activity determinations were made in 50 mM HEPES buffer containing 150 mM NaCl, 5 mM CaCl2, and 0.1% PEG 8000 (polyethylene glycol; JT Baker or Fisher Scientific) at pH 7.4. Determinations were made using purified human Factor XIIa at a final concentration of 500 pM (Sekisui Diagnostics) and the synthetic substrate, n-Acetyl-Lys-Pro-Arg-AFC, TFA salt (Sigma #C6608) at a concentration of 100 μM.Activity assays were performed by diluting a stock solution of substrate at least tenfold to a final concentration ≤0.1 Km into a solution containing enzyme or enzyme equilibrated with inhibitor. Times required to achieve equilibration between enzyme and inhibitor were determined in control experiments. Initial velocities of product formation in the absence (Vo) or presence of inhibitor (Vi) were measured. IC50 was determined as the concentration of I yielding Vi=Vo/2.
Measurement: IC50 = 22.6 nM (pChEMBL 7.650000095367432)
Descriptors: MW 722.37, ALogP 4.72, HBA 8, HBD 2, PSA 128.36, QED 0.34
Compound (SMILES): C=CC(=O)N1c2cc(-c3ncc4cc(-c5c(Cl)c(OC)cc(OC)c5Cl)ccc4n3)c(F)cc2OCC1C
InChIKey: NFHYTSVCRXSGBV-UHFFFAOYSA-N
Target: Fibroblast growth factor receptor 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P22455
Assay: FGFR-4 wild type assay at Km: In each well of a 384-well plate, 0.5 ng/ul of wild type FGFR-4 (Carna Biosciences, Inc.) was incubated in a total of 12.5 ul of buffer (100 mM HEPES pH 7.5, 0.015% Brij 35, 10 mM MgCl2, 1 mM DTT) with 1 uM CSKtide (5-FAM-KKKKEEIYFFFG-NH2) and 400 uM ATP at 25° C for 90 minutes in the presence or absence of a dosed concentration series of compound (1% DMSO final concentration). The reaction was stopped by the addition of 70 ul of Stop buffer (100 mM HEPES pH 7.5, 0.015% Brij 35, 35 mM EDTA and 0.2% of Coating Reagent 3 (Caliper Lifesciences)). The plate was then read on a Caliper LabChip EZ Reader II (protocol settings: −1.9 psi, upstream voltage −700, downstream Voltage -3000, post sample sip 35S).
Measurement: IC50 = 55 nM (pChEMBL 7.260000228881836)
Descriptors: MW 554.41, ALogP 6.73, HBA 6, HBD 0, PSA 73.78, QED 0.26
Compound (SMILES): CCn1nc(C[C@@H](C)COC(=O)c2cnc(C)o2)c2c1C(=O)NCC1(CCOCC1)C2
InChIKey: DTDONBFWDRBBCW-CQSZACIVSA-N
Target: 3',5'-cyclic-AMP phosphodiesterase 4D (SINGLE PROTEIN), Homo sapiens
UniProt: Q08499
Assay: PDE4 Assay: The human PDE4D catalytic domain (UniProt no. Q08499 [S380-L740]) was incubated with a mixture of non-labelled cAMP (cyclic adenosine monophosphate) and fluorescein amidite (FAM) conjugated cAMP and titrated test or reference Compound. Following brief incubation the enzymatic reaction was stopped by addition of binding buffer containing nanoparticles with immobilized trivalent metal ions capable of binding 1) AMP phospho groups and 2) terbium (Tb) donor fluorophores. Subsequent excitation of the Tb donor triggers time-resolved FRET to adjacent FAM acceptor molecules resulting in light emission. In the presence of a PDE4 inhibitor, AMP generation was reduced resulting in a lower fluorescence signal. The cAMP phosphodiester is not bound by the detection system.The results were calculated as the molar concentrations resulting in 50% inhibition of the substrate cleavage compared to controls samples, and are expressed as a range of IC50 (nM).
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 430.51, ALogP 2.32, HBA 8, HBD 1, PSA 108.48, QED 0.7
Compound (SMILES): CC(Nc1cc(F)c(S(=O)(=O)Nc2cscn2)cc1Cl)c1cc(F)cc(F)c1
InChIKey: YPWNNSJCCJJKRM-UHFFFAOYSA-N
Target: Sodium channel protein type 8 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UQD0
Assay: Sodium Influx Assay (In Vitro Assay): This sodium influx assay employs the use of the cell permeable, sodium sensitive dye ANG2 to quantify sodium ion influx through sodium channels which are maintained in an open state by use of sodium channel modulators. This high throughput sodium influx assay allows for rapid profiling and characterization of sodium channel blockers.In general, Trex HEK293 cells were stably transfected with an inducible expression vector containing the full-length cDNA coding for the desired human sodium channel α-subunit and with an expression vector containing full length cDNA coding for the β1-subunit. Sodium channel expressing cell lines were induced with tetracycline (1 μg/mL) and plated on 384-well PDL-coated plates at a density of 25K-30K cells/well in culture media (DMEM, containing 10% FBS and 1% L-glutamine). After overnight incubation (37° C., 5% CO2), culture media was removed and cells were loaded with 5 uM ANG2 dye for 1-1.5 h in Buffer 1 (155 mM NMDG, 5 mM KCl, 2 mM CaCl2, 1 mM MgCl2, 10 mM HEPES, 10 mM glucose, adjusted with Tris to pH 7.4). Access dye was removed and cells were incubated with test compounds for 1 hr in buffer 1 containing sodium channel modulator(s) at room temperature. Hamamatsu FDSS μCell was used to perform a 1:1 addition of Na/K challenge buffer (140 mM NaCl, 20 mM HEPES, 1 mM CaCl2, 15 mM KCl, 1 mM MgCl2, 10 mM glucose, adjusted with Tris to pH 7.4) and simultaneously read plates at excitation wavelength of 530 nm and emission wavelength set at 558 nm. Percent inhibition of sodium ion influx was calculated for each test compound at each test concentration to determine the IC50 values.
Measurement: IC50 = 4228 nM (pChEMBL 5.369999885559082)
Descriptors: MW 447.89, ALogP 5.19, HBA 5, HBD 2, PSA 71.09, QED 0.55
Compound (SMILES): COc1cccc(-c2cc(Nc3ccc(OC)c([N+](=O)[O-])c3)ncn2)c1
InChIKey: ZFEDKPDRUFHYSI-UHFFFAOYSA-N
Target: Cyclin-dependent kinase 9 (SINGLE PROTEIN), Homo sapiens
UniProt: P50750
Assay: Fluorescent Polarization Assay: The activity of the compounds described in the present invention can be determined by measuring the phosphorylation of a fluorescently-labeled peptide by human CDK9/CyclinT kinase complex by fluorescent polarization using a commercially available IMAP Screening Express Assay Kit (Molecular devices).Test compounds were diluted in 100% DMSO to 5 mM stock concentration, then further dilutions were made in H2O or 100% DMSO to desirable concentrations. Each reaction consisted of 5 nM enzyme: CDK9/CyclinT (Proqinase cat#0371-0345-1), 400 nM TAMRA-Rbtide (synthetic 15-mer peptide derived from human retinoblastoma tumor suppressor protein labeled with TAMRA dye, Genecust Europe), 12 μM ATP (=Kmapp, Sigma-Aldrich) and kinase buffer: 20 mM MOPS pH 7 (Sigma-Aldrich), 1 mM DTT (Sigma-Aldrich), 10 mM MgCl2 (Sigma-Aldrich), 0.01% Tween 20 (Sigma-Aldrich).For each reaction, 4 or 6 μl containing TAMRA-Rbtide, ATP and kianse buffer were combined with 2 μl diluted compound in H2O or 0.028 μl compound in 100% DMSO. The kinase reaction was started by the addition of 2 μl diluted enzyme.
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 352.35, ALogP 3.81, HBA 7, HBD 1, PSA 99.41, QED 0.53
Compound (SMILES): COc1cc(Cn2cnc3cccnc32)cc2c1OC(c1ccc(C(F)F)nc1)CO2
InChIKey: OTPDBGNBONAOGY-UHFFFAOYSA-N
Target: Macrophage colony-stimulating factor 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P07333
Assay: In Vitro Studies: All assay reaction conditions for IC50 determinations were within the linear range with respect to time and enzyme concentration. In a 384 well polypropylene plate, c-FMS (0.14 nM, Carna 08-155) was pre-incubated in a 100 mM Hepes-NaOH pH 7.5 buffer containing 0.01% Triton X-100, 10 mM MgCl2, 0.1% BSA, 1 mM DTT, 10 μM sodium orthovanadate and 10 μM beta-glycerophosphate and compound with a concentration of 2.5% DMSO for 15 minutes at room temperature. The reaction was initiated with an equal volume of peptide substrate (Caliper Life Sciences catalog no. 760430) and ATP in the aforementioned buffer. The final concentrations in the reaction were 70 pM c-FMS, 1.5 μM peptide substrate and 500 μM ATP (ATP Km). The reaction was incubated at room temperature for 120 minutes and terminated with a buffer containing excess EDTA (100 mM Hepes-NaOH pH 7.5, 0.02% Brij, 0.1% CR-3, 0.36% DMSO and 100 mM EDTA). The plate was run for one cycle on a LabChip 3000 (Caliper Life Sciences, Hopkinton, Mass.) in an off-chip mobility shift type assay with an upstream voltage of −2250 volts, a downstream voltage of −500 volts and a vacuum pressure of −1.6 psi.
Measurement: IC50 = 190 nM (pChEMBL 6.71999979019165)
Descriptors: MW 424.41, ALogP 4.33, HBA 7, HBD 0, PSA 71.29, QED 0.47
Compound (SMILES): CCCCC(C(=O)Nc1ccc(C(=O)NC)nc1)n1cc(OC)c(-c2cc(Cl)ccc2-n2cc(C(F)F)nn2)cc1=O
InChIKey: LATWNRFJRFBWAT-UHFFFAOYSA-N
Target: Coagulation factor XI (SINGLE PROTEIN), Homo sapiens
UniProt: P03951
Assay: Inhibition Assay: The factor XIa inhibition of the substances according to the invention is determined using a biochemical test system which utilizes the reaction of a peptidic factor XIa substrate to determine the enzymatic activity of human factor XIa. Here, factor XIa cleaves from the peptic factor XIa substrate the C-terminal aminomethylcoumarin (AMC), the fluorescence of which is measured. The determinations are carried out in microtitre plates.Test substances are dissolved in dimethyl sulphoxide and serially diluted in dimethyl sulphoxide (3000 μM to 0.0078 μM; resulting final concentrations in the test: 50 μM to 0.00013 μM). In each case 1 μl of the diluted substance solutions is placed into the wells of white microtitre plates from Greiner (384 wells). 20 μl of assay buffer (50 mM of Tris/HCl pH 7.4; 100 mM of sodium chloride; 5 mM of calcium chloride; 0.1% of bovine serum albumin) and 20 μl of factor XIa from Kordia (0.45 nM in assay buffer) are then added successively. After 15 min of incubation, the enzyme reaction is started by addition of 20 μl of the factor XIa substrate Boc-Glu(OBzl)-Ala-Arg-AMC dissolved in assay buffer (10 μM in assay buffer) from Bachem, the mixture is incubated at room temperature (22° C.) for 30 min and fluorescence is then measured (excitation: 360 nm, emission: 460 nm).
Measurement: IC50 = 2.7 nM (pChEMBL 8.569999694824219)
Descriptors: MW 600.03, ALogP 4.82, HBA 9, HBD 2, PSA 133.03, QED 0.25
Compound (SMILES): CS(=O)(=O)N1CC(CC#N)(N2CCC(NC3CC3c3ccccc3)CC2)C1
InChIKey: WKZYPDVFDYESLQ-UHFFFAOYSA-N
Target: Lysine-specific histone demethylase 1A (SINGLE PROTEIN), Homo sapiens
UniProt: O60341
Assay: LSD1 histone demethylase biochemical assay: LANCE LSD1/KDM1A demethylase assay10 μL of 1 nM LSD-1 enzyme (ENZO BML-SE544-0050) in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 25 mM NaCl, 5 mM DTT) were preincubated for 1 hour at 25° C. with 0.8 μL compound/DMSO dotted in black 384 well polystyrene plates. Reactions were started by addition of 10 μL of assay buffer containing 0.4 μM Biotin-labeled Histone H3 peptide substrate: ART-K(Me1)-QTARKSTGGKAPRKQLA-GGK(Biotin) SEQ ID NO: 1 (AnaSpec 64355) and incubated for 1 hour at 25° C. Reactions were stopped by addition of 10 μL 1× LANCE Detection Buffer (PerkinElmer CR97-100) supplemented with 1.5 nM Eu-anti-unmodified H3K4 Antibody (PerkinElmer TRF0404), and 225 nM LANCE Ultra Streptavidin (PerkinElmer TRF102) along with 0.9 mM Tranylcypromine-HCl (Millipore 616431). After stopping the reactions plates were incubated for 30 minutes and read on a PHERAstar FS plate reader (BMG Labtech). Compounds having an IC50 of 1 μM or less were considered active.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 388.54, ALogP 1.52, HBA 5, HBD 1, PSA 76.44, QED 0.8
Compound (SMILES): Oc1ccc2c3c(cnc2c1)-c1ccc(F)cc1O[C@H]3c1ccc(OCCN2CC(CF)C2)cc1
InChIKey: OGEAHDJGRDNLQY-NDEPHWFRSA-N
Target: Estrogen receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P03372
Assay: Competition Binding Assay: Run the competition binding assay in a buffer containing 50 mM HEPES, pH 7.5, 1.5 mM EDTA, 150 mM NaCl, 10% glycerol, 1 mg/mL ovalbumin, and 5 mM DTT, using 0.025 μCi per well 3H-estradiol (118 Ci/mmol, 1 mCi/mL), 7.2 ng/well ERα (wild type), or 7.2 ng/well ERα (Y537S mutant) or 7.7 ng/well ERβ receptor. Add the test compound at 10 different concentrations ranging from 10,000 nM to 0.5 nM, and determine nonspecific binding in the presence of 1 μM of 1713 estradiol. Incubate the binding reaction (140 μL) for 4 hours at room temperature, and then add cold dextran-charcoal buffer (70 μL) (containing per 50 mL of assay buffer, 0.75 g of charcoal and 0.25 g of dextran) to each reaction. Mix the plates for 8 minutes on an orbital shaker at 4° C. and then centrifuge at 3000 rpm at 4° C. for 10 minutes. Transfer an aliquot (120 μL) of the mixture to another 96-well, white flat bottom plate (Costar) and add Perkin Elmer Optiphase Supermix scintillation fluid (175 μL) to each well. Seal the plates and shake vigorously on an orbital shaker. After an incubation of 2.5 hours, read the plates in a Wallac Microbeta counter.
Measurement: Ki = 1.3 nM (pChEMBL 8.890000343322754)
Descriptors: MW 474.51, ALogP 5.51, HBA 5, HBD 1, PSA 54.82, QED 0.4
Compound (SMILES): COc1cccc(CNC(=O)Nc2cnn(-c3ccncc3)c2)c1
InChIKey: GLBZPQCZKNSQEB-UHFFFAOYSA-N
Target: Rho-associated protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q13464
Assay: ROCK1 and ROCK2 Kinase Inhibition Assays: The following assay protocol is for measuring the phosphorylation of a peptide substrate (FAM-KKLRRTLSVA-OH wherein FAM is carboxyfluorescein). The peptide is >98% purity by Capillary Electrophoresis. The peptide is phosphorylated by the protein kinase ROCK1 or ROCK2. The ROCK1 or ROCK2 enzyme, substrate, and cofactors (ATP and Mg2+) are combined in a well of a microtiter plate and incubated for 3 hours at 25° C. At the end of the incubation, the reaction is quenched by the addition of an EDTA-containing buffer. The substrate and product are separated and quantified electrophoretically using the microfluidic-based LABCHIP® 3000 Drug Discovery System from Caliper Life Sciences (Hopkinton, Mass.).The components of the assay mixture are:    100 mM HEPES, pH 7.5    0.1% BSA    0.01% Triton X-100    1 mM DTT    10 mM MgCl2    10 μM Sodium Orthovanadate    10 μM Beta-Glycerophosphate    5 μM ATP (for ROCK1) or 7 μM ATP (for ROCK2)    1% DMSO (from compound)    1.25 μM FAM-KKLRRTLSVA-OH    3 nM ROCK1 or 2.5 nM ROCK2 enzymeSubstrate and product peptides present in each sample are separated electrophoretically using the LABCHIP® 3000 capillary electrophoresis instrument. As substrate and product peptides are separated two peaks of fluorescence are observed. Change in the relative fluorescence intensity of the substrate and product peaks is the parameter measured reflecting enzyme activity. Capillary electrophoregramms (RDA acquisition files) are analyzed using HTS Well Analyzer software (Caliper Life Sciences, Hopkinton, Mass.). The kinase activity in each sample is determined as the product to sum ratio (PSR): P/(S+P), where P is the peak height of the product peptide and S is the peak height of the substrate peptide. For each compound, enzyme activity is measured at various concentrations (12 concentrations of compound spaced by 3× dilution intervals). Negative control samples (0%-inhibition in the absence of inhibitor) and positive control samples (100%-inhibition in the presence of 20 mM EDTA) are assembled in replicates of four and are used to calculate %-inhibition values for each compound at each concentration. Percent inhibition (Pinh) is determined using the following equation:Pinh=(PSR0%−PSRinh)/(PSR0%−PSR100%)*100where PSRinh is the product sum ratio in the presence of inhibitor, PSR/% is the average product sum ratio in the absence of inhibitor, and PSR100% is the average product sum ratio in 100%-inhibition control samples. The IC50 values of inhibitors are determined by fitting the inhibition curves (Pinh versus inhibitor concentration) by 4 parameter sigmoidal dose-response model using XLfit 4 software (IBDS).
Measurement: IC50 = 130 nM (pChEMBL 6.889999866485596)
Descriptors: MW 323.36, ALogP 2.6, HBA 5, HBD 2, PSA 81.07, QED 0.76
Compound (SMILES): COc1ccc(CN2C[C@]3(CC[C@](c4ccccc4)(N(C)C)CC3)N(CC#N)C2=O)cc1
InChIKey: PWQUVEWEHSXUBN-WMPKNSHKSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Receptor Binding Assay: Mu-Opioid Peptide (hMOP): The hMOP receptor binding assay was performed as homogeneous SPA-assay (scintillation proximity assay) using the assay buffer 50 mM TRIS-HCl (pH 7.4) supplemented with 0.052 mg/ml bovine serum albumin (Sigma-Aldrich Co. St. Louis. Mo.). The final assay volume (250 μl/well) included 1 nM of [N-allyl-2.3-3H]naloxone as ligand (PerkinElmer Life Sciences. Inc. Boston. Mass. USA). and either test compound in dilution series or 25 μM unlabelled naloxone for determination of unspecific binding. The test compound was diluted with 25% DMSO in H2O to yield a final 0.5% DMSO concentration. which also served as a respective vehicle control. The assay was started by adding wheat germ agglutinin coated SPA beads (GE Healthcare UK Ltd. Buckinghamshire. UK) which had been preloaded with hMOP receptor membranes (PerkinElmer Life Sciences. Inc. Boston. Mass. USA). After incubation for 90 minutes at RT and centrifugation for 20 minutes at 500 rpm the signal rate was measured by means of a 1450 Microbeta Trilux β-counter (PerkinElmer Life Sciences/Wallac. Turku. Finland). Half-maximal inhibitory concentration (IC50) values reflecting 50% displacement of [3H]naloxone-specific receptor binding were calculated by nonlinear regression analysis and Ki values were calculated by using the Cheng-Prusoff equation.
Measurement: Ki = 220 nM (pChEMBL 6.659999847412109)
Descriptors: MW 432.57, ALogP 4.23, HBA 4, HBD 0, PSA 59.81, QED 0.64
Compound (SMILES): COc1cc(-c2[nH]c3ccc(C4CCN(CC(=O)N5CCNC(=O)C5)CC4)cc3c2C(C)C)cn2ncnc12
InChIKey: VVYQZDSGCPVEDL-UHFFFAOYSA-N
Target: Toll-like receptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYK1
Assay: TLR7/8/9 Inhibition Reporter Assay: HEK-Blue-cells (Invivogen) overexpressing human TLR7, TLR8 or TLR9 receptors were used for screening inhibitors of these receptors using an inducible SEAP (secreted embryonic alkaline phosphatase) reporter gene under the control of the IFN-β minimal promoter fused to five NF-κB and AP-1-binding sites. Briefly, cells are seeded into Greiner 384 well plates (15000 cells per well for TLR7, 20,000 for TLR8 and 25,000 for TLR9) and then treated with test compounds in DMSO to yield a final dose response concentration range of 0.05 nM-50 μM. After a 30 minute compound pre-treatment at room temperature, the cells are then stimulated with a TLR7 ligand (gardiquimod at a final concentration of 7.5 μM), TLR8 ligand (R848 at a final concentration of 15.9 μM) or TLR9 ligand (ODN2006 at a final concentration of 5 nM) to activate NF-κB and AP-1 which induce the production of SEAP. After a 22 hour incubation at 37° C., 5% CO2, SEAP levels are determined with the addition of HEK-Blue Detection reagent (Invivogen), a cell culture medium that allows for detection of SEAP, according to manufacturer's specifications. The percent inhibition is determined as the % reduction in the HEK-Blue signal present in wells treated with agonist plus DMSO alone compared to wells treated with a known inhibitor.
Measurement: IC50 = 1.1 nM (pChEMBL 8.960000038146973)
Descriptors: MW 529.65, ALogP 3.15, HBA 7, HBD 2, PSA 107.86, QED 0.4
Compound (SMILES): NCC1CCCCN1S(=O)(=O)c1ccc(-c2cccc3sc(N)nc23)c(-c2nnn[nH]2)c1S(N)(=O)=O
InChIKey: DFSHPCNEJBOKNO-UHFFFAOYSA-N
Target: Metallo-beta-lactamase type 2 (SINGLE PROTEIN), Bacteria
UniProt: C7C422
Assay: BIOLOGICAL ASSAYS: The Class B enzyme activities were measured in the presence of the test inhibitor in a fluorescence assay against a commercially available substrate consisting of a cephalosporin core linking 7-hydroxycoumarin to fluorescein (CCF2-FA). The enzyme (NDM-1, IMP-1 or VIM-1; for a review, see: Meine, M.-R.; Llarrull, L. I.; Vila, A. J. Antibiotics, 2014, 3, 285-316) and the substrate were diluted in 100 mM KH2PO4 buffer (pH 7) containing 0.005% Tween-20 and 10 μM ZnSO4. In the assay, the final concentration of enzyme was 1 pM, 2 pM and 30 pM for NDM-1, IMP-1 and VIM-1, respectively, and the final concentration of CCF2-FA was 1.25 μM. The test inhibitor was dissolved in dimethylsulfoxide and diluted 1:50 in the assay, resulting in a final concentration range of 20 μM to 0.00063 μM. In a 384-well microplate, the test inhibitor was incubated with the metallo-β-lactamase enzyme and the substrate for 2 hours at 25° C. Fluorescence at 460 nm following excitation at 405 nm was measured. The IC50 value was determined from semi-logarithmic plots of enzyme inhibition versus inhibitor concentration, with a curve generated using a 4-parameter fit.
Measurement: IC50 = 0.082 nM (pChEMBL 10.09000015258789)
Descriptors: MW 549.66, ALogP 0.87, HBA 11, HBD 4, PSA 216.93, QED 0.27
Compound (SMILES): CS(=O)(=O)NC(=O)c1ccc(-c2cnc(Oc3ccccc3C(F)(F)F)c(Cl)c2)c(OC(F)F)c1
InChIKey: CVPDDVABRDEYLY-UHFFFAOYSA-N
Target: Sodium channel protein type 9 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q15858
Assay: Nav 1.7 In Vitro Patch Express (PX) Assay: HEK 293 cells stably transfected with human Nav1.7 were recorded in whole cell voltage clamp mode with the PatchXpress automated electrophysiology system (Molecular Devices, LLC, Sunnyvale, Calif.). Compound effects were measured on a partially inactivated state of the sodium channel. Cells were clamped to a holding potential yielding 20 to 50% inactivation. To elicit sodium current, channels were activated by pulsing to −10 mV for 20 msec. This voltage protocol was repeated at a rate of 0.1 Hz throughout the experiment. A single concentration of test compound was applied to cells for a duration of 3 minutes. Peak sodium current was measured at the end of the compound addition period to determine percent inhibition. Three to five cells were tested per concentration, and IC50 curves were fitted to percent inhibition as a function of concentration.
Measurement: IC50 = 92.4 nM (pChEMBL 7.03000020980835)
Descriptors: MW 536.86, ALogP 5.5, HBA 6, HBD 1, PSA 94.59, QED 0.4
Compound (SMILES): CN1CCC(N2Cc3cc(NC(=O)c4cnn5cccnc45)c(N4CCOCC4)cc3C2=O)CC1
InChIKey: XBWLGVWTPBLASQ-UHFFFAOYSA-N
Target: Interleukin-1 receptor-associated kinase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NWZ3
Assay: Biological Assay: Kinase activities were assayed using the Transcreener-Fluorecescence polarization platform (BelBrook Labs, Madison, Wis., USA) that measures amounts of the reaction product, ADP. The IRAK4 reaction conditions were optimized using an IRAK1-derived peptide (sequence H-KKARFSRFAGSSPSQSSMVAR) to provide a linear reaction rate over the course of a 90 min incubation, which resulted in 10-12% conversion of the starting ATP to ADP. Final IRAK4 assay conditions were 1.25 nM IRAK4; 125 uM ATP; 10 uM MgCl2; 125 uM peptide in reaction buffer (25 mM HEPES (pH7.4); 2 mM Dithiothreitol; 0.015% Brij-35; and 0.5% dimethyl sulfoxide. The IRAK1 activity was optimized similarly, yielding final assay conditions of 3 mM IRAK1; 62.5 uM ATP; 5 uM MgCl2, and 62.5 uM IRAK1 peptide in reaction buffer for 60 min.Assays of compounds for kinase inhibition were performed using inhibitors serially-diluted in dimethyl sulfoxide, which was accomplished with a LabCyte Echo 555 liquid dispenser. 384 well assay plates spotted with compound received 4 ul of a 2× substrate (ATP+peptide) mix in reaction buffer, followed by 4 ul of 2× enzyme diluted in reaction buffer. Reactions were halted at 60 (IRAK1) or 90 (IRAK4) min by addition of 6 ul of detection buffer, containing EDTA (40 nM final concentration), 0.95 ug of the ADP-binding antibody ADP2, ADP tracer (3 nM final concentration), and 25 uM HEPES. Following a 1 hr incubation, fluorescence polarization of the ADP2-antibody TRACER complex was read on a Tecan M1000 plate reader using a 635/20 excitation filter in combination with a 670/20 emission filter.
Measurement: Ki = 3.8 nM (pChEMBL 8.420000076293945)
Descriptors: MW 475.55, ALogP 1.87, HBA 8, HBD 1, PSA 95.31, QED 0.62
Compound (SMILES): CN1CCC[C@@H](NC(=O)c2sc3nccc4c3c2NC(=O)N4c2ccc(Oc3ccccc3)cc2Cl)C1
InChIKey: RAXWOHASWKJPAK-MRXNPFEDSA-N
Target: Tyrosine-protein kinase BTK (SINGLE PROTEIN), Homo sapiens
UniProt: Q06187
Assay: Kinase Lanthascreen Binding Assay: A BTK kinase lanthascreen binding assay monitors compound binding to unphosphorylated-BTK kinase domain (UP-BTK), by competing with a fluorescent labeled tracer. UP-BTK, consisting of the kinase domain of non-phosphorylated BTK protein (389-659aa), was produced in a Baculovirus/insect cell expression system. Into a 384-well plate, 2 ng of GST-tagged human BTK (389-659aa) was incubated with compound, 50 nM of Tracer 236 and 2 nM anti-GST antibody for 60 minutes using an optimized Lanthascreen assay. After 60 minutes, plates were read at 340 nM and 615/665 nM in an Infinite F500 (Tecan).
Measurement: IC50 = 100 nM (pChEMBL 7)
Descriptors: MW 534.04, ALogP 6.25, HBA 6, HBD 2, PSA 86.8, QED 0.32
Compound (SMILES): COc1ccc(C(=O)NC2CCN(C(=O)c3cc(C(C)C)n[nH]3)C2)cc1
InChIKey: RKLRLFSURNRUDP-UHFFFAOYSA-N
Target: Lysine-specific demethylase 5A (SINGLE PROTEIN), Homo sapiens
UniProt: P29375
Assay: KDM5 Enzyme Assay: Full length KDM5A enzyme was expressed and purified inhouse. Biotin-H3K4me3 peptide was purchased from New England Biolabs. HTRF reagents (containing Eu-labeled H3K4me1-2 antibody, and streptavidin-XL665) were purchased from Cis-Bio International. Plates were read on an Envision multi-label plate reader (Perkin Elmer).The HTRF assay mixture contained 2 nM full length KDM5A enzyme, 100 nM H3K4Me3 peptide substrate, 1 uM 2-OG, 100 uM Fe2+, 500 uM ascorbate. 50 mM HEPES pH 7.0 buffer, 0.01% Triton-X 100, 2 mM DTT, 0.25% DMSO at a final volume of 10 uL.The enzyme reaction was carried out at room temperature in black Proxiplate 384-Plus plate (Corning. Costar) within 30 minutes, in the presence of varying concentration of a test compound. At the end of enzyme reaction, 5 uL of 1 mM EDTA were added to quench the reaction and then the detection reagents (5 uL) were added to give final concentrations of 0.5 nM Eu-labeled H3K4me1-2 antibody, and 50 nM streptavidin-XL665. The plates were incubated at room temperature for 60 minutes and then read in the Envision plate reader. The readouts were transformed into % inhibition, and IC50 value of a test compounds was generated by using four parameters curve fitting (Model 205 in XLFIT5, iDBS).
Measurement: IC50 = 0.27 nM (pChEMBL 9.569999694824219)
Descriptors: MW 356.43, ALogP 2.19, HBA 4, HBD 2, PSA 87.32, QED 0.86
Compound (SMILES): CC(C)Cc1cccc2cc(Cn3cccc(NC(=O)C(CC/C=C/C(=O)N(C)C)OC(=O)N(C)C)c3=O)[nH]c12
InChIKey: NMZWDCRALJTHTO-OVCLIPMQSA-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 < 500 nM (pChEMBL 6.301000118255615)
Descriptors: MW 549.67, ALogP 4.01, HBA 6, HBD 2, PSA 116.74, QED 0.35
Compound (SMILES): CC(=O)c1nn(CC(=O)N2[C@@H]3C[C@@H]3C[C@H]2C(=O)Nc2cnc(C)c(Br)n2)c2ccc(-c3cnc(C)nc3)cc12
InChIKey: GIYNXULKIOTBBI-YHYVQYDKSA-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 was incubated with test compound at various concentrations for 5 minutes 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) was recorded at 30 second intervals for 30 minutes 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 < 1000 nM (pChEMBL 6)
Descriptors: MW 589.45, ALogP 3.49, HBA 9, HBD 1, PSA 135.86, QED 0.34
Compound (SMILES): C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)COC(=O)c1ccc(C(=O)OCc2ccc([C@@H](CN)C(=O)Nc3ccc4cnccc4c3)cc2)cc1
InChIKey: BJLOBSMGZUMYOP-WDNLRGLVSA-N
Target: Protein kinase C eta type (SINGLE PROTEIN), Homo sapiens
UniProt: P24723
Assay: In Vitro Kinase Activity Assay: Inhibition of various kinases was assayed.
Measurement: IC50 = 282 nM (pChEMBL 6.550000190734863)
Descriptors: MW 843.95, ALogP 6.35, HBA 11, HBD 4, PSA 195.21, QED 0.12
Compound (SMILES): C[C@H]1CN(C(=O)CCC2(c3cn(C)cn3)NC(=O)NC2=O)CCN1c1cc(Cl)cc(Cl)c1
InChIKey: JYINPBCWFRCNRI-JRTLGTJJSA-N
Target: A disintegrin and metalloproteinase with thrombospondin motifs 5 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UNA0
Assay: In Vitro Assay: ADAMTS-5:Protocol 2: The basis for the assay is the cleavage of the substrate TBIS-1 (5 FAM-TEGEARGSVILLK (5TAMRA)K-NH2) (SEQ ID No 2) by human ADAMTS-5.For the dose response (10 point), 4 μL of a dilution series of compound (2 mM highest concentration, 1/5 dilution in DMSO further diluted 1 in 10 in water, corresponding to a final highest concentration of 20 μM), is transferred to 384 well Fluotrac 200 plate (Greiner, cat #781076) and incubated at room temperature for 30 min with a 26 μL buffer solution (50 mM Hepes pH7.5, 100 mM NaCl, 5 mM CaCl2, 0.1% CHAPS 1) containing hADAMTS-5 (1 ng/μL, affinity purified, followed by overnight digestion of 6His tag by thrombin and dialysis) (it will be appreciated by the skilled person that the potency read out is independent of the enzyme concentration).The reaction is initiated by adding to the assay plate TBIS-1 (10 μL, 4.5 μM, Anaspec) in the same buffer.Finally, the fluorescence is read on the Envision (Perkin Elmer) after an incubation of 45 min at 37° C. (Excitation 485 nm, emission 530).
Measurement: IC50 = 55 nM (pChEMBL 7.260000228881836)
Descriptors: MW 479.37, ALogP 2.28, HBA 6, HBD 2, PSA 99.57, QED 0.64
Compound (SMILES): Cn1cc(-c2c(-c3ccc(F)cc3)nc(N)n3nc(Cc4nccs4)nc23)ccc1=O
InChIKey: DFXFMJLXQWVGCL-UHFFFAOYSA-N
Target: Adenosine receptor A2a (SINGLE PROTEIN), Homo sapiens
UniProt: P29274
Assay: Binding Affinities to Different Adenosine Receptors: The compounds at different concentrations were incubate with hA1 membrane (from PerkinElmer) and [3H]-8-Cyclopentyl-1,3-dipropylxanthine (DPCPX) for 50 min at 25° C., meanwhile 100 μL 0.5% PEI solution was added into UNFILTER-96 GF/B filter plate for 60 min at 4° C., then UNIFILTER-96 GF/B filter plate was washed twice with 50 ml wash buffer, the membrane mix was transferred into UNIFILTER-96 GF/B filter plate, and the filter plate was washed 4 times before incubated at 55° C. for 10 min. At last, 40 L ULTIMA GOLD was added into each well, and CPM was read by TopCount.The compounds at different concentrations were incubate with hA2a membrane (from PerkinElmer) and [3H]-CGS21680 for 90 min at 25° C., meanwhile 100 μL 0.5% PEI solution was added into UNFILTER-96 GF/B filter plate for 60 min at 4° C., then UNIFILTER-96 GF/B filter plate was washed twice with 50 ml wash buffer, the membrane mix was transferred into UNIFILTER-96 GF/B filter plate, and the filter plate was washed 4 times before incubated at 55° C. for 10 min. At last, 40 L ULTIMA GOLD was added into each well, and CPM was read by TopCount.The compounds at different concentrations were incubate with hA2b membrane (from PerkinElmer) and [3H]-DPCPX for 60 min at 27° C., and the binding reactions were stopped by rapid filtration through 0.5% BSA coated UNIFILTER-96 GF/C plates using cell harvester. The filter plates were then washed three times with ice cold wash buffer, and dried at 37° C. for 120 min. At last, 50 L of scintillation cocktail was added into each well, and CPM was read by TopCount.The compounds at different concentrations were incubate with hA3 membrane (from PerkinElmer) and [1211]-AB-MECA for 60 min at 27° C., the binding reactions were stopped by rapid filtration through 0.50% BSA coated UNIFILTER-96 GF/C plates using cell harvester. The filter plates were then washed three times with ice cold wash buffer, and dried at 37° C. for 120 min. At last, 50 L of scintillation cocktail was added into each well, and CPM was read by TopCount.
Measurement: IC50 = 7.9 nM (pChEMBL 8.100000381469727)
Descriptors: MW 433.47, ALogP 2.93, HBA 9, HBD 1, PSA 103.99, QED 0.47
Compound (SMILES): N#Cc1cc2c(NCC3CC3)nc(=O)n(-c3ccccc3Cl)c2cc1C(F)(F)F
InChIKey: SCSKQBZQSYDOBG-UHFFFAOYSA-N
Target: S-adenosylmethionine synthase isoform type-2 (SINGLE PROTEIN), Homo sapiens
UniProt: P31153
Assay: Biochemical Assay: Enzyme: MAT2AhMAT2A: 50 nM, Cepter, 10 mg/mL (234 μM), amino acids 1-395Substrates: 500 uM eachReaction time: 1 hourL-methionine Substrate: Alfa Aesar catalog #J61904ATP Substrate: Alfa Aesar cat #J60336Malachite Green Detection Reagent: Millipore Sigma catalog #MAK307-1KTAssay buffer: 50 mM Tris, pH 7.5/50 mM KCl/10 mM MgCl2/0.01% Brij-35/1 mM DTT/0.1% BGGTemperature: 23° C.Total volume: 20 μLControls:0% inhibition control: DMSO100% inhibition control: No enzymeProcedure:5 μL of 3×final concentration test compounds in DMSO or DMSO were transferred to the appropriate wells of a microtiter plate and the plate was centrifuged at 1000 rpm for 1 minute. 5 μL of 3×final concentration MAT2A enzyme in assay buffer or assay buffer alone was transferred to the appropriate wells and the plate was centrifuged at 1000 rpm for 1 minute. The plate was incubated at room temperature for 15 minutes and then 5 μL of 3×the L-methionine and ATP substrate mixture in assay buffer was transferred to all the test wells. The plate was centrifuged at 1000 rpm for 1 minute and then incubated at room temperature for 1 hour. 5 μL of malachite green detection reagent was added to all the test wells and the plate was centrifuged at 1000 rpm for 1 minute and then incubated at room temperature for 30 minutes. The plate was read for absorbance at 620 nm on a plate reader (e.g., Infinite M1000). The high control (DMSO) with high absorbance represents no inhibition of enzymatic reaction while the low control (no enzyme) with low absorbance represents full inhibition of enzymatic reaction.
Measurement: IC50 < 200 nM (pChEMBL 6.698999881744385)
Descriptors: MW 418.81, ALogP 4.75, HBA 5, HBD 1, PSA 70.71, QED 0.66
Compound (SMILES): COc1ccc2ccc3c(c2c1)CC(N)C(c1ccccc1Cl)O3
InChIKey: LNNFZIBJOVMTKU-UHFFFAOYSA-N
Target: Dipeptidyl peptidase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: P27487
Assay: Inhibition Activity Assay: Screening Method:Name of method: Activity Evaluation of DPP4, Fluorescence.Instrument: Microplate reader, Envision (PerkinElmer, USA).Material: human DPP4, which was, in this experiment, obtained by using baculovirus expression system in insect cells. Substrate was Gly-Pro-AMC.Process:DPP4 can specifically hydrolyze the substrate, Gly-Pro-AMC to produce a product, AMC, which, excited by UV light at 355 nm, can produce emission light at 460 nm. Linear change of fluorescence values were dynamically measured at 460 nm wavelengths per unit time, thereby calculating DPP4 activity. MERK-0431 was used as a control compound in the experiment.
Measurement: IC50 = 338 nM (pChEMBL 6.46999979019165)
Descriptors: MW 339.82, ALogP 4.51, HBA 3, HBD 1, PSA 44.48, QED 0.75
Compound (SMILES): CCn1c2ccccc2c2cc(C=O)cnc21
InChIKey: STZKMKMDWLBYSV-UHFFFAOYSA-N
Target: Prostaglandin E2 receptor EP4 subtype (SINGLE PROTEIN), Homo sapiens
UniProt: P35408
Assay: Test for Antagonism: 4 μl of a cAMP-d2/cell suspension (625000 cells/ml) were added to a test plate containing the substance solutions already initially introduced (0.05 μl; 100% DMSO, concentration range from 0.8 nM-16.5 μM). After a 20-minute preincubation at room temperature (RT), 2 μl of a 3xPGD2 solution (6 nM, in PBS-IBMX) were added and incubated in the presence of the agonist for a further 30 min at RT (volume: ¿6 μl). Subsequently, the reaction was stopped by addition of 2 μl of lysis buffer and incubated for a further 20 min at RT before the actual measurement (volume: ¿8 μl).
Measurement: IC50 = 65.7 nM (pChEMBL 7.179999828338623)
Descriptors: MW 224.26, ALogP 3.02, HBA 3, HBD 0, PSA 34.89, QED 0.63