ChEMBL ligand: CHEMBL1109 (NSC-757859, Orisulf, Sulfabid, Sulfafenazol, Sulfaphenazol, Sulfaphenazole)
CYP2C9/Cytochrome P450 2C9 in Human [ChEMBL: CHEMBL3397] [GtoPdb: 1326] [UniProtKB: P11712] There should be some charts here, you may need to enable JavaScript!

DB	Assay description	Assay Type	Standard value	Standard parameter	Original value	Original units	Original parameter	Reference
CYP2C9/Cytochrome P450 2C9 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL3397] [GtoPdb: 1326] [UniProtKB: P11712]
GtoPdb	-	-	6.52	pKi	300	nM	Ki	Biochem Pharmacol (1988) 37: 1137-44 [PMID:3355588]; J Pharmacol Exp Ther (1996) 277: 321-32 [PMID:8613937]
ChEMBL	Fluorescent High Throughput P450 Assay: The interaction of SC12 with cytochrome P450 enzymes was tested using Fluorescent High Throughput P450 assays (Gentest); The IC50s of the compounds was calculated on isoenzymes (CYP1A2, CYP2C9, CYP2C19, CYP2C8, CYP2B6, CYP2D6, CYP2E1, CYP3A4 and CYP3A5). Inhibition of the P450 isoforms was measured in specific assays using specific substrates that become fluorescent upon CYP metabolism. Compounds, dissolved in ACN (acetonitrile) (CYP2E1, CYP2C8, CYP2B6, CYP3A5) or DMSO (all remaining isoforms), were tested in duplicate (n=2) in concentration-response curves (eight concentrations) in a 96-well plate containing incubation/NADPH regenerating buffer. Specific isoenzymes and substrates were added and incubated at 37° C. Reactions were terminated at different times, depending on the assays, and plates read on a Fluoroskan Ascent at the appropriate emission/excitation wavelengths. Concentration-response curves performed in duplicate for known inhibitors for each isoenzyme were tested in ever	B	6.57	pIC50	270	nM	IC50	US-9173935-B2. Phospholipid drug analogs (2015)
ChEMBL	Fluorescent High Throughput P450 Assays: The interaction of SC12 with cytochrome P450 enzymes was tested using Fluorescent High Throughput P450 assays (Gentest); The IC50s of the compounds was calculated on isoenzymes (CYP1A2, CYP2C9, CYP2C19, CYP2C8, CYP2B6, CYP2D6, CYP2E1, CYP3A4 and CYP3A5).Materials and Methods: Inhibition of the P450 isoforms was measured in specific assays using specific substrates that become fluorescent upon CYP metabolism. Compounds, dissolved in ACN (acetonitrile) (CYP2E1, CYP2C8, CYP2B6, CYP3A5) or DMSO (all remaining isoforms), were tested in duplicate (n=2) in concentration-response curves (eight concentrations) in a 96-well plate containing incubation/NADPH regenerating buffer. Specific isoenzymes and substrates were added and incubated at 37° C. Reactions were terminated at different times, depending on the assays, and plates read on a Fluoroskan Ascent at the appropriate emission/excitation wavelengths.	B	6.57	pIC50	270	nM	IC50	US-9180183-B2. Phospholipid drug analogs (2015)
ChEMBL	Extracellular Cytochrome P450 Inhibition Assay: Specific aspects of the incubation conditions for each assay (e.g., protein concentration, incubation time, etc.) are defined in Walsky & Obach, 2004 (Walsky, R. L., and Obach, R. S. Validated assays for human Cytochrome P450 activities. Drug Met. Disp. 32:647-660, 2004.). In general, microsomes at protein concentrations as defined in Table 12 were mixed with buffer (100 mM KH2PO4, pH 7.4), MgCl2 (6 mM)) and substrate, and were kept on ice. Aliquots of this mixture (89 μL) were delivered to each well of a 96-well polypropylene plate which contained an aliquot of inhibitor (1 μL) in acetonitrile:water (1:1). Final solvent concentrations were less than 1% (v/v). Incubations were initiated with the addition of 10 μL β-NADPH (10 mM stock) to a final volume of 100 μL. Incubations were terminated by the addition of 1.5-2× volume of acetonitrile containing internal standard (buspirone). Samples were centrifuged at 4° C., and supernatant was transferred for LC-MS/MS analysis.	B	6.68	pIC50	210	nM	IC50	US-9688624-B2. DP2 antagonist and uses thereof (2017)
ChEMBL	DRUGMATRIX: CYP450, 2C9 enzyme inhibition (substrate: 3-Cyano-7-ethoxycoumarin)	B	6.7	pIC50	200	nM	IC50	DrugMatrix in vitro pharmacology data

ChEMBL data shown on this page come from version 35:

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]