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INS018_055   Click here for help

GtoPdb Ligand ID: 13279

Synonyms: compound 112 [WO2022179528] [6] | compound 4 [PMID: 39422731] | INS-018-055 | INS-018_055 | INS018-055 | ISM001-055 | rentosertib (USAN)
PDB Ligand
Compound class: Synthetic organic
Comment: INS018_055 is a small-molecule TRAF2- and NCK-interacting kinase (TNIK) inhibitor [1,3]. It was identified by InSilico Medicine using an AI-driven approach, and is proposed to combat pulmonary fibrosis. Nominally INS018_055 refers to the acetate salt.
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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

INS018_055 is commercially available from our sponsors

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 Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). 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 8
Hydrogen bond donors 2
Rotatable bonds 7
Topological polar surface area 75.57
Molecular weight 487.57
XLogP 2.55
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
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.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CC(C)N1C=NC(=C1C2=NC=C(C(=O)NC3=CC=C(C=C3)N4CCN(C)CC4)N2)C5=CC=C(C=C5)F
Isomeric SMILES CC(C)N1C=NC(=C1C2=NC=C(N2)C(=O)NC3=CC=C(C=C3)N4CCN(CC4)C)C5=CC=C(C=C5)F
InChI InChI=1S/C27H30FN7O/c1-18(2)35-17-30-24(19-4-6-20(28)7-5-19)25(35)26-29-16-23(32-26)27(36)31-21-8-10-22(11-9-21)34-14-12-33(3)13-15-34/h4-11,16-18H,12-15H2,1-3H3,(H,29,32)(H,31,36)
InChI Key ZVDNXHUSIKGTSF-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Bioactivity Comments
INS018_055 induces anti-fibrotic and anti-inflammatory effects in vivo [3]. In different models it is active via oral, inhaled or topical routes of administration.
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
TRAF2 and NCK interacting kinase Hs Inhibitor Inhibition 8.4 pKd - 3
⤷ pKd 8.4 (Kd 4.32x10-9 M) [3]
Description: Binding affinity determined by surface plasmon resonance assay.
TRAF2 and NCK interacting kinase Hs Inhibitor Inhibition 7.5 pIC50 - 3
⤷ pIC50 7.5 (IC50 3.1x10-8 M) [3]
Targets where the ligand is described in the comment field
Target Comment
TRAF2 and NCK interacting kinase Tang et al. (2025) discovered that TNIK is senescence modulator, and that TNIK inhibition (using the TNIK inhibitor INS018_055 and siRNA-mediated TNIK knockdown) decreases cellular senescence across a range of experimental senescence models [4].