picrotoxinin   Click here for help

GtoPdb Ligand ID: 2291

PDB Ligand
Compound class: Natural product or derivative
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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 CDK toolkit. 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 6
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 85.36
Molecular weight 292.09
XLogP -0.47
No. Lipinski's rules broken 0
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.

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Canonical SMILES CC(=C)C1C2OC(=O)C1C1(C3(C2OC(=O)C23C(C1)O2)C)O
Isomeric SMILES CC(=C)[C@@H]1[C@H]2OC(=O)[C@@H]1[C@]1([C@]3([C@@H]2OC(=O)[C@]23[C@@H](C1)O2)C)O
InChI InChI=1S/C15H16O6/c1-5(2)7-8-11(16)19-9(7)10-13(3)14(8,18)4-6-15(13,21-6)12(17)20-10/h6-10,18H,1,4H2,2-3H3/t6-,7+,8-,9-,10-,13-,14-,15+/m1/s1
InChI Key PIMZUZSSNYHVCU-YKWPQBAZSA-N
References
1. Behrens M, Brockhoff A, Kuhn C, Bufe B, Winnig M, Meyerhof W. (2004)
The human taste receptor hTAS2R14 responds to a variety of different bitter compounds.
Biochem Biophys Res Commun, 319 (2): 479-85. [PMID:15178431]
2. Brockhoff A, Behrens M, Massarotti A, Appendino G, Meyerhof W. (2007)
Broad tuning of the human bitter taste receptor hTAS2R46 to various sesquiterpene lactones, clerodane and labdane diterpenoids, strychnine, and denatonium.
J Agric Food Chem, 55 (15): 6236-43. [PMID:17595105]
3. Lynch JW, Rajendra S, Barry PH, Schofield PR. (1995)
Mutations affecting the glycine receptor agonist transduction mechanism convert the competitive antagonist, picrotoxin, into an allosteric potentiator.
J Biol Chem, 270 (23): 13799-806. [PMID:7775436]
4. Pribilla I, Takagi T, Langosch D, Bormann J, Betz H. (1992)
The atypical M2 segment of the beta subunit confers picrotoxinin resistance to inhibitory glycine receptor channels.
EMBO J, 11 (12): 4305-11. [PMID:1385113]
5. Thompson AJ, Duke RK, Lummis SC. (2011)
Binding sites for bilobalide, diltiazem, ginkgolide, and picrotoxinin at the 5-HT3 receptor.
Mol Pharmacol, 80 (1): 183-90. [PMID:21505038]
6. Thompson AJ, Jarvis GE, Duke RK, Johnston GA, Lummis SC. (2011)
Ginkgolide B and bilobalide block the pore of the 5-HT(3) receptor at a location that overlaps the picrotoxin binding site.
Neuropharmacology, 60 (2-3): 488-95. [PMID:21059362]
7. Yang Z, Cromer BA, Harvey RJ, Parker MW, Lynch JW. (2007)
A proposed structural basis for picrotoxinin and picrotin binding in the glycine receptor pore.
J Neurochem, 103 (2): 580-9. [PMID:17714449]