atrasentan   Click here for help

GtoPdb Ligand ID: 3487

Synonyms: A-127722 | A-147627 | ABT-627
Compound class: Synthetic organic
Comment: Atrasentan (ABT-627) is an orally available, nonpeptide endothelin receptor antagonist. The stereochemistry represented here matches that defined in the INN record for atrasentan.
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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 5
Hydrogen bond donors 1
Rotatable bonds 13
Topological polar surface area 88.54
Molecular weight 510.27
XLogP 4.23
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 CCCCN(C(=O)CN1CC(C(C1c1ccc(cc1)OC)C(=O)O)c1ccc2c(c1)OCO2)CCCC
Isomeric SMILES CCCCN(C(=O)CN1C[C@@H]([C@H]([C@@H]1c1ccc(cc1)OC)C(=O)O)c1ccc2c(c1)OCO2)CCCC
InChI InChI=1S/C29H38N2O6/c1-4-6-14-30(15-7-5-2)26(32)18-31-17-23(21-10-13-24-25(16-21)37-19-36-24)27(29(33)34)28(31)20-8-11-22(35-3)12-9-20/h8-13,16,23,27-28H,4-7,14-15,17-19H2,1-3H3,(H,33,34)/t23-,27-,28+/m1/s1
InChI Key MOTJMGVDPWRKOC-QPVYNBJUSA-N
Bioactivity Comments
Winn et al (1996) [9] report Ki values for the racemate, RRS (as represented here) and SSR enantiomers of atrasentan, with the conclusion that the activity of the compound resides in the RRS enantiomer. The Ki values in the table below are for the active enantiomer, but note that other values may have been generated using the racemic mixture. Opgenorth et al (1996) assessed the selectivity of atrasentan in a panel of 29 different receptor binding assays and found little non-specific antagonism [4].
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
ETA receptor Hs Antagonist Antagonist 9.2 pA2 - 4
⤷ pA2 9.2 [4]
ETA receptor Primary target of this compound Hs Antagonist Antagonist 10.5 pKi - 4,9
⤷ pKi 10.5 (Ki 3.4x10-11 M) [4,9]
Description: CHO cells expressing human ETA receptor.
ETB receptor Hs Antagonist Antagonist 6.9 pKi - 9
⤷ pKi 6.9 (Ki 1.38x10-7 M) [9]
Description: CHO cells expressing human ETB receptor.