tagtociclib [Ligand Id: 11525] activity data from GtoPdb and ChEMBL
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| ChEMBL ligand: CHEMBL5201870 (PF-07104091, Tagtociclib, Tegtociclib) |
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| DB | Assay description | Assay Type | Standard value | Standard parameter | Original value | Original units | Original parameter | Reference |
|---|---|---|---|---|---|---|---|---|
| cyclin dependent kinase 1/CDK1/Cyclin A in Human (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL3038467] [GtoPdb: 1961] [UniProtKB: P06493, P20248] | ||||||||
| ChEMBL | Biochemical Assay: The purpose of CDK2/Cyclin E1 assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) of small molecule inhibitors by using a fluorescence-based microfluidic mobility shift assay. CDK2/Cyclin E1 full length catalyzes the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide FL-Peptide-18 (5-FAM-QSPKKG-CONH2, CPC Scientific, Sunnyvale, Calif.) (SEQ ID NO:1). The mobility shift assay electrophoretically separates the fluorescently labeled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Wild-type CDK2/wild-type full length Cyclin E1 enzyme complex was produced in-house (baculoviral expression, LJIC-2080/LJIC-2103) and phosphorylated by CDK7/Cyclin H1/Matl enzyme complex with CDK2:CDK7 ratio of 50:1 (concentration mg/mL) in the presence of 10 mM MgCl2 and 5 mM ATP at room temperature for one hour. Typical reaction solutions (50 μL final reaction volume) contained 2% DMSO (±inhibitor), 4 mM MgCl2, 1 mM DTT, 150 μM ATP (ATP Km=67.4 μM), 0.005% Tween-20, 3 μM FL-Peptide-18, and 0.36 nM (catalytically competent active site) phosphorylated wild-type full length CDK2/Cyclin E1 enzyme complex in 25 mM HEPES buffer at pH 7.15. The assay was initiated with the addition of ATP, following a fifteen minutes pre-incubation of enzyme and inhibitor at room temperature in the reaction mixture. The reaction was stopped after 45 minutes at room temperature by the addition of 50 μL of 80 mM EDTA. | B | 6.96 | pKi | 110 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
| cyclin dependent kinase 6/CDK6/cyclin D1 in Human (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL2111455] [GtoPdb: 1978] [UniProtKB: P24385, Q00534] | ||||||||
| ChEMBL | Biochemical Assay: The purpose of the CDK6/Cyclin D3 assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) in the presence of small molecule inhibitors by using a fluorescence based microfluidic mobility shift assay. CDK6/Cyclin D3 catalyses the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide 5-FAM-Dyrktide (5-FAM-RRRFRPASPLRGPPK) (SEQ ID NO:3). The mobility shift assay electrophoretically separates the fluorescently labelled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Typical reaction solutions contained 2% DMSO (±inhibitor), 2% glycerol, 10 mM MgCl2, 1 mM DTT, 3.5 mM ATP, 0.005% Tween 20 (TW-20), 3 μM 5-FAM-Dyrktide, 4 nM (active sites) activated CDK6/Cyclin D3 in 40 mM HEPES buffer at pH 7.5. | B | 6.33 | pKi | 465 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
| cyclin dependent kinase 2/Cyclin-dependent kinase 2 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL301] [GtoPdb: 1973] [UniProtKB: P24941] | ||||||||
| GtoPdb | Inhibition of CDK2/Cyclin E | - | 8.94 | pIC50 | 1.16 | nM | IC50 | J Med Chem (2022) 65: 6390-6418 [PMID:35485642] |
| ChEMBL | Inhibition of CDK2 (unknown origin) | B | 8.96 | pIC50 | 1.1 | nM | IC50 | Eur J Med Chem (2024) 270: 116333-116333 [PMID:38569434] |
| cyclin dependent kinase 2/Cyclin-dependent kinase 2/cyclin E1 in Human (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL1907605] [GtoPdb: 1973] [UniProtKB: P24864, P24941] | ||||||||
| ChEMBL | Binding affinity to CDK2/Cyclin E1 (unknown origin) using Ulight-MBP as substrate assessed as inhibition constant preincubated for 30 mins followed by substrate addition measured after 90 mins in presence of ATP by TR-FRET assay | B | 8.85 | pKi | 1.4 | nM | Ki | ACS Med Chem Lett (2023) 14: 1179-1187 [PMID:37736184] |
| ChEMBL | Biochemical Assay: The purpose of CDK2/Cyclin E1 assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) of small molecule inhibitors by using a fluorescence-based microfluidic mobility shift assay. CDK2/Cyclin E1 full length catalyzes the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide FL-Peptide-18 (5-FAM-QSPKKG-CONH2, CPC Scientific, Sunnyvale, Calif.) (SEQ ID NO:1). The mobility shift assay electrophoretically separates the fluorescently labeled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Wild-type CDK2/wild-type full length Cyclin E1 enzyme complex was produced in-house (baculoviral expression, LJIC-2080/LJIC-2103) and phosphorylated by CDK7/Cyclin H1/Matl enzyme complex with CDK2:CDK7 ratio of 50:1 (concentration mg/mL) in the presence of 10 mM MgCl2 and 5 mM ATP at room temperature for one hour. Typical reaction solutions (50 μL final reaction volume) contained 2% DMSO (±inhibitor), 4 mM MgCl2, 1 mM DTT, 150 μM ATP (ATP Km=67.4 μM), 0.005% Tween-20, 3 μM FL-Peptide-18, and 0.36 nM (catalytically competent active site) phosphorylated wild-type full length CDK2/Cyclin E1 enzyme complex in 25 mM HEPES buffer at pH 7.15. The assay was initiated with the addition of ATP, following a fifteen minutes pre-incubation of enzyme and inhibitor at room temperature in the reaction mixture. The reaction was stopped after 45 minutes at room temperature by the addition of 50 μL of 80 mM EDTA. | B | 8.94 | pKi | 1.16 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
| GtoPdb | Inhibition of CDK2/Cyclin E | - | 8.94 | pIC50 | 1.16 | nM | IC50 | J Med Chem (2022) 65: 6390-6418 [PMID:35485642] |
| cyclin dependent kinase 4/Cyclin-dependent kinase 4/cyclin D1 in Human (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL1907601] [GtoPdb: 1976] [UniProtKB: P11802, P24385] | ||||||||
| ChEMBL | Biochemical Assay: The purpose CDK4/Cyclin D1 assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) in the presence of small molecule inhibitors by using a fluorescence based microfluidic mobility shift assay. CDK4/Cyclin D3 catalyses the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide 5-FAM-Dyrktide (5-FAM-RRRFRPASPLRGPPK) (SEQ ID NO:3). The mobility shift assay electrophoretically separates the fluorescently labelled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Typical reaction solutions contained 2% DMSO (±inhibitor), 10 mM MgCl2, 1 mM DTT, 3.5 mM ATP, 0.005% TW-20, 3 μM 5-FAM-Dyrktide, 3 nM (active sites) activated CDK4/Cyclin D1 in 40 mM HEPES buffer at pH 7.5. | B | 6.96 | pKi | 110 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
| cyclin dependent kinase 9/Cyclin-dependent kinase 9 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL3116] [GtoPdb: 1981] [UniProtKB: P50750] | ||||||||
| ChEMBL | Biochemical Assay: The purpose of CDK2/Cyclin E1 assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) of small molecule inhibitors by using a fluorescence-based microfluidic mobility shift assay. CDK2/Cyclin E1 full length catalyzes the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide FL-Peptide-18 (5-FAM-QSPKKG-CONH2, CPC Scientific, Sunnyvale, Calif.) (SEQ ID NO:1). The mobility shift assay electrophoretically separates the fluorescently labeled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Wild-type CDK2/wild-type full length Cyclin E1 enzyme complex was produced in-house (baculoviral expression, LJIC-2080/LJIC-2103) and phosphorylated by CDK7/Cyclin H1/Matl enzyme complex with CDK2:CDK7 ratio of 50:1 (concentration mg/mL) in the presence of 10 mM MgCl2 and 5 mM ATP at room temperature for one hour. Typical reaction solutions (50 μL final reaction volume) contained 2% DMSO (±inhibitor), 4 mM MgCl2, 1 mM DTT, 150 μM ATP (ATP Km=67.4 μM), 0.005% Tween-20, 3 μM FL-Peptide-18, and 0.36 nM (catalytically competent active site) phosphorylated wild-type full length CDK2/Cyclin E1 enzyme complex in 25 mM HEPES buffer at pH 7.15. The assay was initiated with the addition of ATP, following a fifteen minutes pre-incubation of enzyme and inhibitor at room temperature in the reaction mixture. The reaction was stopped after 45 minutes at room temperature by the addition of 50 μL of 80 mM EDTA. | B | 6.75 | pKi | 177 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
| glycogen synthase kinase 3 beta/Glycogen synthase kinase-3 beta in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL262] [GtoPdb: 2030] [UniProtKB: P49841] | ||||||||
| ChEMBL | Biochemical Assay: The purpose of GSK3β assay is to evaluate the inhibition (% inhibition, Kiapp and Ki values) of small molecule inhibitors by using a fluorescence-based microfluidic mobility shift assay. GSK3β catalyzes the production of ADP from ATP that accompanies the phosphoryl transfer to the substrate peptide FL-Peptide-15 (5-FAM-KRREILSRRPpSYR-COOH, CPC Scientific, Sunnyvale, Calif.) (SEQ ID NO:2). The mobility shift assay electrophoretically separates the fluorescently labeled peptides (substrate and phosphorylated product) following the kinase reaction. Both substrate and product are measured and the ratio of these values is used to generate % conversion of substrate to product by the LabChip EZ Reader. Active GSK3β (H350L) was purchased from Upstate/Millipore. Typical reaction solutions (50 μL final reaction volume) contained 2% DMSO (±inhibitor), 4 mM MgCl2, 1 mM DTT, 40 μM ATP (ATP Km=9.43 μM), 0.005% Tween-20, 2 μM FL-Peptide-15, and 0.6 nM GSK3β in 25 mM HEPES buffer at pH 7.5. The assay was initiated with the addition of ATP, following 15 minutes pre-incubation of enzyme and inhibitor at room temperature in the reaction mixture. The reaction was stopped after 30 minutes at room temperature by the addition of 50 μL of 80 mM EDTA. The Ki value was determined from the fit of the data to the Morrison tight-binding competitive inhibition equation with the enzyme concentration as a variable. | B | 6.27 | pKi | 538 | nM | Ki | US-11014911-B2. CDK2 inhibitors (2021) |
ChEMBL data shown on this page come from version 36:
Zdrazil B, Felix E, Hunter F, Manners EJ, Blackshaw J, Corbett S, de Veij M, Ioannidis H, Lopez DM, Mosquera JF, Magarinos MP, Bosc N, Arcila R, Kizilören T, Gaulton A, Bento AP, Adasme MF, Monecke P, Landrum GA, Leach AR. (2024). The ChEMBL Database in 2023: a drug discovery platform spanning multiple bioactivity data types and time periods. Nucleic Acids Res., 52(D1). DOI: 10.1093/nar/gkad1004. [EPMCID:10767899] [PMID:37933841]
Davies M, Nowotka M, Papadatos G, Dedman N, Gaulton A, Atkinson F, Bellis L, Overington JP. (2015) 'ChEMBL web services: streamlining access to drug discovery data and utilities.' Nucleic Acids Res., 43(W1). DOI: 10.1093/nar/gkv352. [EPMCID:25883136]
