pranlukast   Click here for help

GtoPdb Ligand ID: 3634

Synonyms: ONO RS-411
Approved drug PDB Ligand Immunopharmacology Ligand
pranlukast is an approved drug
Compound class: Synthetic organic
Comment: Pranlukast is a leukotriene receptor antagonist (LTRA), with selectivity for cysteinyl leukotriene receptor 1 (CysLT1 receptor). It is estimated to be 4500-fold selective for CysLT1 over CysLT2 in vitro [3].
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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

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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 6
Hydrogen bond donors 2
Rotatable bonds 10
Topological polar surface area 123
Molecular weight 481.18
XLogP 6.96
No. Lipinski's rules broken 1
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(c1ccc(cc1)OCCCCc1ccccc1)Nc1cccc2c1oc(cc2=O)c1[nH]nnn1
Isomeric SMILES O=C(c1ccc(cc1)OCCCCc1ccccc1)Nc1cccc2c1oc(cc2=O)c1[nH]nnn1
InChI InChI=1S/C27H23N5O4/c33-23-17-24(26-29-31-32-30-26)36-25-21(23)10-6-11-22(25)28-27(34)19-12-14-20(15-13-19)35-16-5-4-9-18-7-2-1-3-8-18/h1-3,6-8,10-15,17H,4-5,9,16H2,(H,28,34)(H,29,30,31,32)
InChI Key NBQKINXMPLXUET-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
CysLT2 receptor Hs Antagonist Antagonist 7.1 pA2 - 2
⤷ pA2 7.1 [2]
Description: against LTC4 Ca2+ mobilization assay in HUVEC
CysLT1 receptor Primary target of this compound Hs Antagonist Antagonist 7.1 – 8.8 pKi - 1,6
⤷ pKi 7.1 – 8.8 [1,6]
Description: against [3H]LTD4 in human lung parenchyma
CysLT1 receptor Primary target of this compound Hs Antagonist Antagonist 8.1 – 10.0 pIC50 - 5,7
⤷ pIC50 10.0 (IC50 1x10-10 M) against 33nM LTD4 Ca2+ mobilization assay in HEK-293 [7]
pIC50 8.1 – 8.4 (IC50 7.2x10-9 – 4.3x10-9 M) against [3H]LTD4 in COS-7 or HEK-293 cells [5,7]
CysLT2 receptor Hs Antagonist Antagonist 5.4 pIC50 - 4
⤷ pIC50 5.4 (IC50 3.62x10-6 M) [4]
Description: against [3H]LTD4 in COS-7 cells
Ligand mentioned in the following text fields
Leukotriene receptors overview