ChEMBL ligand: CHEMBL2220900
DNA gyrase in S.aureus [ChEMBL: CHEMBL3038482] [UniProtKB: P0A0K8, P20831] There should be some charts here, you may need to enable JavaScript!
Topoisomerase IV in S.aureus [ChEMBL: CHEMBL3038508] [UniProtKB: P0C1S7, P0C1U9] 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
DNA gyrase in S.aureus (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL3038482] [UniProtKB: P0A0K8, P20831]
ChEMBL	Inhibition of Staphylococcus aureus DNA gyrase using pBR322 plasmid DNA as substrate by coupled enzyme reaction assay	B	8.05	pKi	9	nM	Ki	J Med Chem (2014) 57: 8792-8816 [PMID:25317480]
ChEMBL	ATPase Assay: The ATP hydrolysis activity of S. aureus DNA gyrase is measured by coupling the production of ADP through pyruvate kinase/lactate dehydrogenase to the oxidation of NADH. This method has been described previously (Tamura and Gellert, 1990, J. Biol. Chem., 265, 21342).ATPase assays are carried out at 30° C. in buffered solutions containing 100 mM TRIS pH 7.6, 1.5 mM MgCl2, 150 mM KCl. The coupling system contains final concentrations of 2.5 mM phosphoenol pyruvate, 200 μM nicotinamide adenine dinucleotide (NADH), 1 mM DTT, 30 ug/ml pyruvate kinase, and 10 ug/ml lactate dehydrogenase. The enzyme (90 nM final concentration) and a DMSO solution (3% final concentration) of a compound is added. The reaction mixture is allowed to incubate for 10 minutes at 30° C. The reaction is initiated by the addition of ATP to a final concentration of 0.9 mM, and the rate of NADH disappearance is monitored at 340 nanometers over the course of 10 minutes.	B	8.05	pKi	9	nM	Ki	US-9040542-B2. Solid forms of gyrase inhibitor (R)-1-ethyl-3-[6-fluoro-5-[2-(1-hydroxy-1-methyl-ethyl)pryimidin-5-yl]-7-(tetrahydrofuran-2-yl)-1H-benzimidazol-2-yl]urea (2015)
Topoisomerase IV in S.aureus (target type: PROTEIN COMPLEX) [ChEMBL: CHEMBL3038508] [UniProtKB: P0C1S7, P0C1U9]
ChEMBL	ATPase Assay: The conversion of ATP to ADP by S. aureus TopoIV enzyme is coupled to the conversion of NADH to NAD+, and the progress of the reaction is measured by the change in absorbance at 340 nm. TopoIV (64 nM) is incubated with the selected compound (3% DMSO final) in buffer for 10 minutes at 30° C. The buffer consists of 100 mM Tris 7.5, 1.5 mM MgCl2, 200 mM K.Glutamate, 2.5 mM phosphoenol pyruvate, 0.2 mM NADH, 1 mM DTT, 5 μg/mL linearized DNA, 50 μg/mL BSA, 30 μg/mL pyruvate kinase, and 10 μg/mL lactate dehyrodgenase (LDH). The reaction is initiated with ATP, and rates are monitored continuously for 20 minutes at 30° C. on a Molecular Devices SpectraMAX plate reader.	B	7.92	pKi	12	nM	Ki	US-9040542-B2. Solid forms of gyrase inhibitor (R)-1-ethyl-3-[6-fluoro-5-[2-(1-hydroxy-1-methyl-ethyl)pryimidin-5-yl]-7-(tetrahydrofuran-2-yl)-1H-benzimidazol-2-yl]urea (2015)

ChEMBL data shown on this page come from version 34:

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]