apabetalone   Click here for help

GtoPdb Ligand ID: 7034

Synonyms: QC-216 | RVX 208 | RVX-000222 | RVX-208
PDB Ligand
Compound class: Synthetic organic
Comment: Apabetalone (RVX 208) is a derivative of the plant polyphenol resveratrol. RVX 208 is an investigational inhibitor of BET bromodomain containing proteins, with potential anti-atherosclerotic action for the treatment of cardiovascular disease (CVD) [3-4].

SARS-CoV-2 and CIVID-19: Apabetalone (RVX 208) has been reported to reduce ACE2 expression and hence SARS-CoV-2 infection in vitro [2], and to block inflammation-mediated cardiac injury and dysfunction that is caused by SARS-CoV-2 infection (in a study using human cardiac organoids) [6]. It has been respositioned for potential to provide a cardio-protective therapy that prevents COVID-19-mediated cardiac damage.
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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 3
Hydrogen bond donors 2
Rotatable bonds 6
Topological polar surface area 93.67
Molecular weight 370.15
XLogP 3.86
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 OCCOc1c(C)cc(cc1C)c1nc(=O)c2c([nH]1)cc(cc2OC)OC
Isomeric SMILES OCCOc1c(C)cc(cc1C)c1nc(=O)c2c([nH]1)cc(cc2OC)OC
InChI InChI=1S/C20H22N2O5/c1-11-7-13(8-12(2)18(11)27-6-5-23)19-21-15-9-14(25-3)10-16(26-4)17(15)20(24)22-19/h7-10,23H,5-6H2,1-4H3,(H,21,22,24)
InChI Key NETXMUIMUZJUTB-UHFFFAOYSA-N
Bioactivity Comments
Binding affinity for the BD2 domain of BRD4 is provided in the table below. The corresponding value when BD1/BD2 are tandemly expressed is lower, at 580nM [4].
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
bromodomain containing 4 Hs Antagonist Antagonist 7.4 pIC50 - 4
⤷ pIC50 7.4 (IC50 4x10-8 M) [4]
Description: Measured using a TR-FRET assay to evaluate binding to BD2 of BRD4.
bromodomain containing 2 Hs Antagonist Antagonist 7.1 pIC50 - 4
⤷ pIC50 7.1 (IC50 9x10-8 M) [4]
Description: Measured using a TR-FRET assay to evaluate binding to BD2 of BRD2.
bromodomain containing 3 Hs Antagonist Antagonist 6.6 pIC50 - 4
⤷ pIC50 6.6 (IC50 2.8x10-7 M) [4]
Description: Measured using a TR-FRET assay to evaluate binding to BD2 of BRD3.
bromodomain containing 3 Hs Inhibitor Inhibition 4.1 – 5.3 pIC50 - 8
⤷ pIC50 5.3 (IC50 4.9x10-6 M) [8]
Description: AlphaScreen data assessing the bromodomain 2 domain of BRD3.
pIC50 4.1 (IC50 8.7x10-5 M) [8]
Description: AlphaScreen data for bromodomain 1 of BRD3.