ChEMBL ligand: CHEMBL1254682 (Levallorphan, Levallorphane, Levalorfano, Lorfan, Naloxiphan)
Acetylcholinesterase in Electrophorus electricus [ChEMBL: CHEMBL4078] [UniProtKB: O42275] There should be some charts here, you may need to enable JavaScript!
μ receptor/Mu opioid receptor in Human [ChEMBL: CHEMBL233] [GtoPdb: 319] [UniProtKB: P35372] μ receptor/Mu opioid receptor in Rat [ChEMBL: CHEMBL270] [GtoPdb: 319] [UniProtKB: P33535] 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
Acetylcholinesterase in Electrophorus electricus (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL4078] [UniProtKB: O42275]
ChEMBL	Inhibition of electric eel AChE by Ellman's method	B	4.92	pKi	12000	nM	Ki	Bioorg Med Chem (2010) 18: 5071-5080 [PMID:20580236]
μ receptor/Mu opioid receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL233] [GtoPdb: 319] [UniProtKB: P35372]
ChEMBL	Displacement of [125I]-IBNalA from MOR-1 expressed in CHO cells	B	8.77	pKi	1.69	nM	Ki	Bioorg Med Chem Lett (2011) 21: 4001-4004 [PMID:21621410]
ChEMBL	Displacement of [125I]-IBNtxA from MOR-1 expressed in CHO cells	B	8.89	pKi	1.29	nM	Ki	Bioorg Med Chem Lett (2011) 21: 4001-4004 [PMID:21621410]
ChEMBL	Displacement of [125I]-IBOxyA from MOR-1 expressed in CHO cells	B	9.32	pKi	0.48	nM	Ki	Bioorg Med Chem Lett (2011) 21: 4001-4004 [PMID:21621410]
GtoPdb	Competition binding assay- the calculated Ki varies depending on the radioligand used.	-	9.32	pKi	0.48	nM	Ki	Bioorg Med Chem Lett (2011) 21: 4001-4 [PMID:21621410]
μ receptor/Mu opioid receptor in Rat (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL270] [GtoPdb: 319] [UniProtKB: P33535]
ChEMBL	Displacement of [3H]-dihydromorphine from mu opioid receptor in rat cerebral cortex by liquid scintillation counting	B	9.2	pIC50	0.63	nM	IC50	Eur J Med Chem (2011) 46: 4992-4999 [PMID:21864951]

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]