STO609   Click here for help

GtoPdb Ligand ID: 5274

Synonyms: STO 609 | STO-609
PDB Ligand
Compound class: Synthetic organic
Comment: STO609 is a selective and cell-permeable inhibitor of the Ca(2+)/calmodulin-dependent protein kinase kinases CaMKK1 and CaMKK2 [3]. The compound has been assessed in preclinical studies.
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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 4
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 71.67
Molecular weight 314.07
XLogP 3.94
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 OC(=O)c1ccc2c3c1cccc3c(=O)n1c2nc2c1cccc2
Isomeric SMILES OC(=O)c1ccc2c3c1cccc3c(=O)n1c2nc2c1cccc2
InChI InChI=1S/C19H10N2O3/c22-18-13-5-3-4-10-11(19(23)24)8-9-12(16(10)13)17-20-14-6-1-2-7-15(14)21(17)18/h1-9H,(H,23,24)
InChI Key MYKOWOGZBMOVBJ-UHFFFAOYSA-N
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
calcium/calmodulin dependent protein kinase kinase 2 Primary target of this compound Hs Inhibitor Inhibition 7.4 pIC50 - 3
⤷ pIC50 7.4 (IC50 4x10-8 M) [3]
calcium/calmodulin dependent protein kinase kinase 1 Primary target of this compound Hs Inhibitor Inhibition 6.8 pIC50 - 3
⤷ pIC50 6.8 (IC50 1.4x10-7 M) [3]
Targets where the ligand is described in the comment field
Target Comment
Calmodulin-dependent kinase II Camodulin-dependent kinase II is a homo- or heterotromultimeric holoenzyme made up of 8 to 12 subunit chains.

STO609 is an inhibitor of calmodulin kinase kinase [3], an upstream activator of calmodulin-dependent kinase.