K-252a   Click here for help

GtoPdb Ligand ID: 336

Synonyms: K252a | ST50826373 | staurosporine aglycone
Compound class: Natural product or derivative
Comment: K252a is an alkaloid isolated from Nocardiopisis soil fungi. It is an analogue of staurosporine. There is some ambiguity surrounding the exact stereochemistry of this compound, with an alternative representation being CID 3035817.
Click here for help

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.

✖

View interactive charts of activity data across species
2D Structure
Click here for help

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.

✖
Click here for structure editor
Physico-chemical Properties
Click here for help

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.

✖
Hydrogen bond acceptors 6
Hydrogen bond donors 2
Rotatable bonds 2
Topological polar surface area 94.72
Molecular weight 467.15
XLogP 5.34
No. Lipinski's rules broken 1
SMILES / InChI / InChIKey
Click here for help

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.

✖
Canonical SMILES COC(=O)C1(O)CC2OC1(C)n1c3ccccc3c3c1c1n2c2ccccc2c1c1c3CNC1=O
Isomeric SMILES COC(=O)[C@]1(O)C[C@@H]2O[C@@]1(C)n1c3ccccc3c3c1c1n2c2ccccc2c1c1c3CNC1=O
InChI InChI=1S/C27H21N3O5/c1-26-27(33,25(32)34-2)11-18(35-26)29-16-9-5-3-7-13(16)20-21-15(12-28-24(21)31)19-14-8-4-6-10-17(14)30(26)23(19)22(20)29/h3-10,18,33H,11-12H2,1-2H3,(H,28,31)/t18-,26+,27+/m0/s1
InChI Key KOZFSFOOLUUIGY-IYYJOCMQSA-N
Classification Click here for help
Compound class Natural product or derivative
Synonyms Click here for help
K252a | ST50826373 | staurosporine aglycone
Database Links Click here for help
Specialist databases
GPCRdb Ligand K-252a
Other databases
BindingDB Ligand 6760
CAS Registry No. 97161-97-2 (source: Scifinder)
ChEMBL Ligand CHEMBL416056
DrugBank Ligand DB02152
GtoPdb PubChem SID 135652695
PubChem CID 490561
Search Google for chemical match using the InChIKey KOZFSFOOLUUIGY-IYYJOCMQSA-N
Search Google for chemicals with the same backbone KOZFSFOOLUUIGY
UniChem Compound Search for chemical match using the InChIKey KOZFSFOOLUUIGY-IYYJOCMQSA-N
UniChem Connectivity Search for chemical match using the InChIKey KOZFSFOOLUUIGY-IYYJOCMQSA-N
Wikipedia K252a