A-304121 [Ligand Id: 1258] activity data from GtoPdb and ChEMBL

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ChEMBL ligand: CHEMBL302196 (A-304121)
  • H1 receptor/Histamine H1 receptor in Human [ChEMBL: CHEMBL231] [GtoPdb: 262] [UniProtKB: P35367]
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  • H2 receptor/Histamine H2 receptor in Human [ChEMBL: CHEMBL1941] [GtoPdb: 263] [UniProtKB: P25021]
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  • H3 receptor/Histamine H3 receptor in Human [ChEMBL: CHEMBL264] [GtoPdb: 264] [UniProtKB: Q9Y5N1]
  • H3 receptor/Histamine H3 receptor in Rat [ChEMBL: CHEMBL4124] [GtoPdb: 264] [UniProtKB: Q9QYN8]
  • Histamine H3 receptor in Guinea pig [ChEMBL: CHEMBL5076] [UniProtKB: Q9JI35]
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DB Assay description Assay Type Standard value Standard parameter Original value Original units Original parameter Reference
H1 receptor/Histamine H1 receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL231] [GtoPdb: 262] [UniProtKB: P35367]
ChEMBL Binding affinity towards Histamine H1 receptor of human membranes. B 4.16 pKi 69183.1 nM Ki Bioorg Med Chem Lett (2002) 12: 2035-2037 [PMID:12113836]
H2 receptor/Histamine H2 receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1941] [GtoPdb: 263] [UniProtKB: P25021]
ChEMBL Binding affinity towards Histamine H2 receptor from human membranes B 4.15 pKi 70794.58 nM Ki Bioorg Med Chem Lett (2002) 12: 2035-2037 [PMID:12113836]
H3 receptor/Histamine H3 receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL264] [GtoPdb: 264] [UniProtKB: Q9Y5N1]
ChEMBL Binding affinity to human histamine H3 receptor B 6.1 pKi 794.33 nM Ki J Med Chem (2011) 54: 26-53 [PMID:21062081]
GtoPdb - - 6.1 pKi - - - J Pharmacol Exp Ther (2003) 305: 887-96 [PMID:12606603];
Biochem Pharmacol (2004) 68: 933-45 [PMID:15294456]
ChEMBL Binding affinity for human histamine H3 receptor on human colon cells B 6.12 pKi 760 nM Ki Bioorg Med Chem Lett (2004) 14: 673-676 [PMID:14741266]
ChEMBL In vitro binding affinity was determined as displacement of [3H]N-R-methylhistamine from C6 cell membranes expressing human histamine H3 receptor B 6.12 pKi 760 nM Ki J Med Chem (2005) 48: 38-55 [PMID:15634000]
ChEMBL In vitro binding affinity was determined as displacement of [3H]N-R-methylhistamine from C6 cell membranes expressing human histamine H3 receptor B 6.12 pKi 758.58 nM Ki J Med Chem (2005) 48: 38-55 [PMID:15634000]
H3 receptor/Histamine H3 receptor in Rat (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL4124] [GtoPdb: 264] [UniProtKB: Q9QYN8]
ChEMBL In vitro binding affinity was determined as displacement of [3H]N-R-methylhistamine from C6 cell membranes expressing rat histamine H3 receptor B 8.6 pKi 2.51 nM Ki J Med Chem (2005) 48: 38-55 [PMID:15634000]
ChEMBL Binding affinity to rat cortical histamine H3 receptor B 8.6 pKi 2.51 nM Ki J Med Chem (2011) 54: 26-53 [PMID:21062081]
GtoPdb - - 8.6 pKi - - - J Pharmacol Exp Ther (2003) 305: 887-96 [PMID:12606603];
Biochem Pharmacol (2004) 68: 933-45 [PMID:15294456]
ChEMBL In vitro binding affinity was determined as displacement of [3H]N-R-methylhistamine from C6 cell membranes expressing rat histamine H3 receptor B 8.6 pKi 2.5 nM Ki J Med Chem (2005) 48: 38-55 [PMID:15634000]
ChEMBL Binding affinity towards Histamine H3 receptor of rat cortical membranes. B 8.9 pKi 1.26 nM Ki Bioorg Med Chem Lett (2002) 12: 2035-2037 [PMID:12113836]
Histamine H3 receptor in Guinea pig (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL5076] [UniProtKB: Q9JI35]
ChEMBL Tested in vitro for histamine H3 receptor mediate inhibition of neurogenic contractions in guinea pig isolated ileum assay F 6.98 pKd 104.71 nM Kd Bioorg Med Chem Lett (2002) 12: 2035-2037 [PMID:12113836]

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]