suramin   Click here for help

GtoPdb Ligand ID: 1728

Synonyms: CI-1003 | suramine
Approved drug PDB Ligand
suramin is an approved drug
Compound class: Synthetic organic
Comment: Suramin is an antiparasitic drug. It is also used in research as a broad-spectrum P2 receptor antagonist [1,5] and as a ryanodine receptor agonist [13].
Evidence from studies in mice [7-9], and from an early phase clinical trial suggest antipurinergic therapy (using suramin or other antipurinergic compounds) as a potential lead in the search for pharmacotherapeutic intervention in children with autism spectrum disorder (see Phase 1/2 clinical trial NCT02508259).
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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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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 29
Hydrogen bond donors 12
Rotatable bonds 22
Topological polar surface area 534.03
Molecular weight 1296.05
XLogP 0.91
No. Lipinski's rules broken 3
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 O=C(Nc1cccc(c1)C(=O)Nc1cc(ccc1C)C(=O)Nc1ccc(c2c1c(cc(c2)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O)Nc1cccc(c1)C(=O)Nc1cc(ccc1C)C(=O)Nc1ccc(c2c1c(cc(c2)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O
Isomeric SMILES O=C(Nc1cccc(c1)C(=O)Nc1cc(ccc1C)C(=O)Nc1ccc(c2c1c(cc(c2)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O)Nc1cccc(c1)C(=O)Nc1cc(ccc1C)C(=O)Nc1ccc(c2c1c(cc(c2)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O
InChI InChI=1S/C51H40N6O23S6/c1-25-9-11-29(49(60)54-37-13-15-41(83(69,70)71)35-21-33(81(63,64)65)23-43(45(35)37)85(75,76)77)19-39(25)56-47(58)27-5-3-7-31(17-27)52-51(62)53-32-8-4-6-28(18-32)48(59)57-40-20-30(12-10-26(40)2)50(61)55-38-14-16-42(84(72,73)74)36-22-34(82(66,67)68)24-44(46(36)38)86(78,79)80/h3-24H,1-2H3,(H,54,60)(H,55,61)(H,56,58)(H,57,59)(H2,52,53,62)(H,63,64,65)(H,66,67,68)(H,69,70,71)(H,72,73,74)(H,75,76,77)(H,78,79,80)
InChI Key FIAFUQMPZJWCLV-UHFFFAOYSA-N
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
P2Y6 receptor Hs Antagonist Antagonist 4.0 pKB - 11
⤷ pKB 4.0 (KB 1x10-4 M) [11]
P2Y1 receptor Hs Antagonist Antagonist 5.3 pKi - 12
⤷ pKi 5.3 [12]
P2Y13 receptor Hs Antagonist Antagonist 5.6 pIC50 - 6
⤷ pIC50 5.6 [6]
P2Y11 receptor Hs Antagonist Antagonist 4.8 – 6.0 pIC50 - 2
⤷ pIC50 4.8 – 6.0 [2]
P2Y2 receptor Hs Antagonist Antagonist 4.3 pIC50 - 4,10
⤷ pIC50 4.3 [4,10]
Selectivity at ion channels
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
P2X1 Rn Antagonist Antagonist 6.0 pIC50 - 3
⤷ pIC50 6.0 (IC50 1x10-6 M) [3]
P2X3 Rn Antagonist Antagonist 5.5 pIC50 - 3
⤷ pIC50 5.5 (IC50 3x10-6 M) [3]
P2X5 Rn Antagonist Antagonist 5.4 pIC50 - 3
⤷ pIC50 5.4 (IC50 4x10-6 M) [3]
P2X2 Rn Antagonist Antagonist 5.0 pIC50 - 3
⤷ pIC50 5.0 (IC50 1.04x10-5 M) [3]
P2X3 Hs Antagonist Antagonist 4.8 pIC50 - 3
⤷ pIC50 4.8 (IC50 1.49x10-5 M) [3]
RyR1 Hs Activator - - - -
⤷ pharmacological; μM range
RyR2 Hs Activator - - - -
⤷ pharmacological; μM range
Ligand mentioned in the following text fields
P2X receptors comments