RA839 [Ligand Id: 10487] activity data from GtoPdb and ChEMBL

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ChEMBL ligand: CHEMBL3899754
  • kelch like ECH-associated protein 1/Kelch-like ECH-associated protein 1 in Human [ChEMBL: CHEMBL2069156] [GtoPdb: 2757] [UniProtKB: Q14145]
  • kelch like ECH-associated protein 1/Kelch-like ECH-associated protein 1 in Mouse [ChEMBL: CHEMBL3562164] [GtoPdb: 2757] [UniProtKB: Q9Z2X8]
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DB Assay description Assay Type Standard value Standard parameter Original value Original units Original parameter Reference
kelch like ECH-associated protein 1/Kelch-like ECH-associated protein 1 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL2069156] [GtoPdb: 2757] [UniProtKB: Q14145]
GtoPdb Binding affinity determined by ITC, between KEAP1 kelch domain and RA839. - 5.22 pKd 6000 nM Kd J Biol Chem (2015) 290: 28446-55 [PMID:26459563]
ChEMBL Inhibition of human Keap1 kelch domain binding to Nrf2-ETGE peptide by ITC assay B 5.22 pKd 6000 nM Kd J Med Chem (2018) 61: 8088-8103 [PMID:29750408]
ChEMBL Binding affinity to human KEAP1 Kelch domain (322 to 609 residues) by isothermal titration calorimetric method B 5.22 pKd 6000 nM Kd J Med Chem (2019) 62: 6796-6813 [PMID:31283229]
ChEMBL Binding affinity to recombinant human KEAP1 Kelch domain (321 to 609 residues) using RA839 as titrant by isothermal titration calorimetry B 5.22 pKd 6000 nM Kd J Med Chem (2019) 62: 8028-8052 [PMID:31411465]
ChEMBL Binding affinity to recombinant human KEAP1 Kelch domain (321 to 609 residues) expressed in Escherichia coli BL21 (DE3) by surface plasmon resonance analysis B 6.33 pKd 470 nM Kd J Med Chem (2019) 62: 8028-8052 [PMID:31411465]
ChEMBL Inhibition of Cys5-LDEETGEFL-NH2 binding to recombinant human KEAP1 Kelch domain (321 to 609 residues) expressed in Escherichia coli BL21 (DE3) measured after 10 to 15 mins by fluorescence polarization assay B 7.32 pKi 48 nM Ki J Med Chem (2019) 62: 8028-8052 [PMID:31411465]
GtoPdb Inhibition constant determined using fluorescence polarization to monitor the interaction of human KEAP1 kelch domain (amino acids Ala321–Thr609) to a fluorescently labeled human Nrf2 peptide (Alexa633-AFFAQLQLDEETGEFL). - 6.85 pIC50 ~140 nM IC50 J Biol Chem (2015) 290: 28446-55 [PMID:26459563]
ChEMBL Inhibition of human Keap1 kelch domain binding to Nrf2-ETGE peptide preincubated for 15 mins followed by peptide addition measured after 30 mins by fluorescence polarization assay B 6.85 pIC50 140 nM IC50 J Med Chem (2018) 61: 8088-8103 [PMID:29750408]
ChEMBL Displacement of FITC-LDEETGEFL-NH2 from human KEAP1 Kelch domain (322 to 609 residues) measured after 30 mins by fluorescence polarization assay B 6.85 pIC50 140 nM IC50 J Med Chem (2019) 62: 6796-6813 [PMID:31283229]
ChEMBL Inhibition of Alexa633-AFFAQLQLDEETGEFL binding to recombinant human KEAP1 Kelch domain (321 to 609 residues) preincubated for 15 mins followed by Alexa633-AFFAQLQLDEETGEFL addition and measured after 30 mins by fluorescence polarization assay B 6.85 pIC50 140 nM IC50 J Med Chem (2019) 62: 8028-8052 [PMID:31411465]
ChEMBL Inhibition of FITC-9mer Nrf2 peptide interaction with human recombinant Keap1 Kelch domain (321 to 609 residues) expressed in Escherichia coli DE3 cells incubated for 30 mins by fluorescence polarization assay B 9.85 pIC50 0.14 nM IC50 J Med Chem (2020) 63: 11149-11168 [PMID:32902980]
ChEMBL Binding affinity to recombinant human KEAP1 Kelch domain (321 to 609 residues) expressed in Escherichia coli BL21 (DE3) assessed as thermal stabilization by sypro orange dye based thermal shift assay B 4.89 pEC50 13000 nM EC50 J Med Chem (2019) 62: 8028-8052 [PMID:31411465]
kelch like ECH-associated protein 1/Kelch-like ECH-associated protein 1 in Mouse (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL3562164] [GtoPdb: 2757] [UniProtKB: Q9Z2X8]
ChEMBL Binding affinity to mouse Keap1 Kelch domain expressed in Escherichia coli BL21 by VP-ITC assay B 5.22 pKd 6000 nM Kd J Med Chem (2016) 59: 10837-10858 [PMID:27690435]

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]