KN62   Click here for help

GtoPdb Ligand ID: 4235

Synonyms: KN 62 | KN-62 | KN62 (S isomer)
Compound class: Synthetic organic
Comment: KN-62 is a selective, cell permeable inhibitor of Ca2+/calmodulin-dependent kinase type II (CaMKII) [4] and also acts as a non-competitive antagonist of the purinergic receptor P2RX7 [1]. For details of a non-isomeric form of this compound used in kinase screens please see our ligand entry KN-62.
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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

KN62 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 10
Hydrogen bond donors 0
Rotatable bonds 11
Topological polar surface area 146.84
Molecular weight 721.2
XLogP 4.48
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 O=C(C(N(S(=O)(=O)c1cccc2c1ccnc2)C)Cc1ccc(cc1)OS(=O)(=O)c1cccc2c1ccnc2)N1CCN(CC1)c1ccccc1
Isomeric SMILES O=C([C@@H](N(S(=O)(=O)c1cccc2c1ccnc2)C)Cc1ccc(cc1)OS(=O)(=O)c1cccc2c1ccnc2)N1CCN(CC1)c1ccccc1
InChI InChI=1S/C38H35N5O6S2/c1-41(50(45,46)36-11-5-7-29-26-39-19-17-33(29)36)35(38(44)43-23-21-42(22-24-43)31-9-3-2-4-10-31)25-28-13-15-32(16-14-28)49-51(47,48)37-12-6-8-30-27-40-20-18-34(30)37/h2-20,26-27,35H,21-25H2,1H3/t35-/m0/s1
InChI Key RJVLFQBBRSMWHX-DHUJRADRSA-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/)
References
1. Chessell IP, Michel AD, Humphrey PP. (1998)
Effects of antagonists at the human recombinant P2X7 receptor.
Br J Pharmacol, 124 (6): 1314-20. [PMID:9720806]
2. Gargett CE, Wiley JS. (1997)
The isoquinoline derivative KN-62 a potent antagonist of the P2Z-receptor of human lymphocytes.
Br J Pharmacol, 120 (8): 1483-90. [PMID:9113369]
3. Shemon AN, Sluyter R, Conigrave AD, Wiley JS. (2004)
Chelerythrine and other benzophenanthridine alkaloids block the human P2X7 receptor.
Br J Pharmacol, 142 (6): 1015-9. [PMID:15210579]
4. Tokumitsu H, Chijiwa T, Hagiwara M, Mizutani A, Terasawa M, Hidaka H. (1990)
KN-62, 1-[N,O-bis(5-isoquinolinesulfonyl)-N-methyl-L-tyrosyl]-4-phenylpiperazi ne, a specific inhibitor of Ca2+/calmodulin-dependent protein kinase II.
J Biol Chem, 265 (8): 4315-20. [PMID:2155222]