[125I]epibatidine   Click here for help

GtoPdb Ligand ID: 3976

 Ligand is labelled  Ligand is radioactive
Compound class: Synthetic organic
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Click here for structure editor
Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 2
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 24.92
Molecular weight 208.08
XLogP 1.75
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES Clc1ccc(cn1)C1CC2NC1CC2
Isomeric SMILES Clc1ccc(cn1)C1CC2NC1CC2
InChI InChI=1S/C11H13ClN2/c12-11-4-1-7(6-13-11)9-5-8-2-3-10(9)14-8/h1,4,6,8-10,14H,2-3,5H2
InChI Key NLPRAJRHRHZCQQ-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Selectivity at ion channels
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
nicotinic acetylcholine receptor α2 subunit Rn Agonist Full agonist 10.1 – 11.0 pKd -
⤷ pKd 10.7 – 11.0 (Kd 2.1x10-11 – 1x10-11 M) α2β2
pKd 10.1 – 10.1 (Kd 8.7x10-11 – 8.4x10-11 M) α2β4
nicotinic acetylcholine receptor α3 subunit Hs Agonist Full agonist 9.6 – 11.1 pKd -
⤷ pKd 11.1 (Kd 7x10-12 M) α3β2
pKd 9.6 (Kd 2.3x10-10 M) α3β4
nicotinic acetylcholine receptor α2 subunit Hs Agonist Full agonist 10.4 pKd -
⤷ pKd 10.4 (Kd 4.2x10-11 M) α2β4
nicotinic acetylcholine receptor α4 subunit Hs Agonist Full agonist 9.7 – 11.0 pKd -
⤷ pKd 10.5 – 11.0 (Kd 3.3x10-11 – 1x10-11 M) α4β2
pKd 9.7 (Kd 1.87x10-10 M) α4β4
nicotinic acetylcholine receptor α3 subunit Rn Agonist Full agonist 9.5 – 10.9 pKd -
⤷ pKd 10.5 – 10.9 (Kd 3.4x10-11 – 1.4x10-11 M) α3β2
pKd 9.5 – 9.5 (Kd 3.04x10-10 – 2.9x10-10 M) α3β4
nicotinic acetylcholine receptor α4 subunit Rn Agonist Full agonist 9.0 – 9.5 pKd -
⤷ pKd 9.3 – 9.5 (Kd 4.6x10-10 – 3x10-10 M) α4β2
pKd 9.0 – 9.1 (Kd 9.4x10-10 – 8.5x10-10 M) α4β4