ramosetron [Ligand Id: 2301] activity data from GtoPdb and ChEMBL

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ChEMBL ligand: CHEMBL1643895 (Ramosetron)
  • 5-HT3A/Serotonin 3a (5-HT3a) receptor in Human [ChEMBL: CHEMBL1899] [GtoPdb: 373] [UniProtKB: P46098]
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  • 5-HT3A in Human [GtoPdb: 379]
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DB Assay description Assay Type Standard value Standard parameter Original value Original units Original parameter Reference
5-HT3A/Serotonin 3a (5-HT3a) receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1899] [GtoPdb: 373] [UniProtKB: P46098]
ChEMBL Binding affinity to human 5HT3A receptor B 10.22 pKi 0.06 nM Ki Bioorg Med Chem Lett (2011) 21: 58-61 [PMID:21146988]
ChEMBL Radioligand Binding Assay: The relative affinity of the various compounds for the human 5-HT3 receptor was measured in a radioligand binding assay, using a scintillation proximity assay (SPA) format. Test compounds were dissolved to 10 mM in 100% DMSO, then serially diluted at 10x assay concentrations in 100% DMSO in 96-well polypropylene plates and further diluted to 4x assay concentrations with the assay buffer. Samples were incubated in 50 mM Tris-HCl, pH 7.5, 3 mM MgCl2, 1 mM EDTA and 10% DMSO with 10 nM [9-methyl-3H]BRL-43694 (Perkin Elmer), 3 ug of human 5-HT3 receptor membranes (Perkin Elmer) and 0.5 mg/mL SPA beads (WGA PVT, Amersham Biosciences) in a final volume of 0.2 mL. Binding reactions were set up in wells of PicoPlates-96 (Perkin Elmer) by adding consecutively 50 uL of each competing compound or buffer, SPA beads, the radioligand and 5-HT3 receptor membranes. After an overnight incubation at room temperature on a Nutator mixer, plates were centrifuged for 15 min at 1,500 rpm. B 10.22 pKi 0.06 nM Ki US-9045501-B2. 5-HT3 receptor modulators, methods of making, and use thereof (2015)
5-HT3A in Human [GtoPdb: 379]
GtoPdb - - 10 pKi - - - J Pharmacol Sci (2007) 104: 263-73 [PMID:17652911]

ChEMBL data shown on this page come from version 33:

Mendez D, Gaulton A, Bento AP, Chambers J, De Veij M, Félix E, Magariños MP, Mosquera JF, Mutowo P, Nowotka M, Gordillo-Marañón M, Hunter F, Junco L, Mugumbate G, Rodriguez-Lopez M, Atkinson F, Bosc N, Radoux CJ, Segura-Cabrera A, Hersey A, Leach AR. (2019) 'ChEMBL: towards direct deposition of bioassay data' Nucleic Acids Res., 47(D1). DOI: 10.1093/nar/gky1075. [EPMCID:30398643]
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]