LTE4   Click here for help

GtoPdb Ligand ID: 3352

Synonyms: leukotriene E | leukotriene E4
Compound class: Metabolite 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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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 4
Rotatable bonds 18
Topological polar surface area 146.15
Molecular weight 439.24
XLogP 3.06
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 CCCCCC=CCC=CC=CC=CC(C(CCCC(=O)O)O)SCC(C(=O)O)N
Isomeric SMILES CCCCC/C=C\C/C=C\C=C\C=C\[C@H]([C@H](CCCC(=O)O)O)SC[C@@H](C(=O)O)N
InChI InChI=1S/C23H37NO5S/c1-2-3-4-5-6-7-8-9-10-11-12-13-16-21(30-18-19(24)23(28)29)20(25)15-14-17-22(26)27/h6-7,9-13,16,19-21,25H,2-5,8,14-15,17-18,24H2,1H3,(H,26,27)(H,28,29)/b7-6-,10-9-,12-11+,16-13+/t19-,20-,21+/m0/s1
InChI Key OTZRAYGBFWZKMX-FRFVZSDQSA-N
Natural/Endogenous Targets
Target
CysLT1 receptor
CysLT2 receptor
GPR17
Enzymes Catalysing Reactions with this Compound as a Substrate or Product
Enzyme EC number Reaction Reference
Dipeptidase 1 3.4.13.19 LTD4 + H2O = LTE4 + glycine
Dipeptidase 2 3.4.13.19 LTD4 + H2O = LTE4 + glycine
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
CysLT1 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 7.1 – 7.8 pKi - 1
⤷ pKi 7.1 – 7.8 Ki against [3H]LTD4 in human lung parenchyma [1]
CysLT2 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 6.5 pKi - 1
⤷ pKi 6.5 Ki against [3H]LTC4 in human lung parenchyma [1]
GPR17 Ligand is endogenous in the given species Mm Agonist Agonist 9.5 pEC50 - 3
⤷ pEC50 9.5 (EC50 3.1x10-10 M) [3]
CysLT1 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 6.4 – 7.2 pEC50 - 4-8
⤷ pEC50 6.6 – 7.2 (EC50 2.4x10-7 – 5.8x10-8 M) Ca2+ mobilisation assay in COS-7 or HEK-293 cells [5-7]
pEC50 6.7 (EC50 2.12x10-7 M) pigment dispersion in X. laevis melanophores [4]
pEC50 6.4 (EC50 3.91x10-7 M) aequorin-based Ca2+ assay in HEK-293 cells [8]
CysLT2 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 5.6 – 7.1 pEC50 - 2,5,7-8
⤷ pEC50 6.5 – 7.1 (EC50 2.93x10-7 – 7.7x10-8 M) Ca2+ mobilization assay in HEK-293 cells [5,7]
pEC50 5.6 – 5.9 (EC50 2.3x10-6 – 1.208x10-6 M) aequorin-based Ca2+ assay in HEK-293 cells [2,8]
CysLT1 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 6.6 – 7.0 pIC50 - 4
⤷ pIC50 6.6 – 7.0 (IC50 2.74x10-7 – 1.07x10-7 M) against [3H]LTD4 in COS-7 cells [4]
CysLT2 receptor Ligand is endogenous in the given species Hs Agonist Partial agonist 5.7 – 6.2 pIC50 - 2,5,7
⤷ pIC50 6.2 – 6.2 (IC50 7x10-7 – 6.93x10-7 M) against [3H]LTD4 in COS-7 or HEK-293 cells [2,5]
pIC50 5.7 (IC50 1.89x10-6 M) against [3H]LTC4 in COS-1 cells [7]
Additional information and targets (data relate to human unless otherwise stated)
Description Data Reference
Potency order of endogenous ligands at CysLT1 receptor LTD4 > LTC4 > LTE4 4,6
Potency order of endogenous ligands at CysLT2 receptor LTC4 ≥ LTD4 >> LTE4 2,5,7
Ligand mentioned in the following text fields
Leukotriene and lipoxin metabolism overview
Leukotriene receptors overview