K 252a

Pricing Availability   Qty
Description: Protein kinase inhibitor
Alternative Names: SF 2370
Chemical Name: (9S,10R,12R)-2,3,9,10,11,12-Hexahydro-10-hydroxy-9-methyl-1-oxo-9,12-epoxy-1H-diindolo[1,2,3-fg:3',2',1'-kl]pyrrolo[3,4-i][1,6]benzodiazocine-10-carboxylic acid methyl ester
Purity: ≥98% (HPLC)
Citations (7)

Biological Activity for K 252a

K 252a is a non-selective protein kinase inhibitor; analog of staurosporine (Cat.No. 1285). Inhibits PKC (IC50 = 32.9 nM), Ca2+/calmodulin-stimulated phosphodiesterases (IC50 = 1.3 - 2.9 μM), MLCK (Ki = 20 nM) and receptor tyrosine kinases. Inhibits the oncogenic properties of MET; prevents autophosphorylation and activation of downstream effectors (MAPK, Akt).

Technical Data for K 252a

M. Wt 467.48
Formula C27H21N3O5
Storage Store at -20°C
Purity ≥98% (HPLC)
CAS Number 99533-80-9
PubChem ID 3035817
Smiles [H][C@](C[C@]8(O)[C@@](OC)=O)(O[C@]78C)N5C3=C2N7C1=CC=CC=C1C2=C(CNC6=O)C6=C3C4=CC=CC=C45

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for K 252a

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 11.69 25

Preparing Stock Solutions for K 252a

The following data is based on the product molecular weight 467.48. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
0.25 mM 8.56 mL 42.78 mL 85.57 mL
1.25 mM 1.71 mL 8.56 mL 17.11 mL
2.5 mM 0.86 mL 4.28 mL 8.56 mL
12.5 mM 0.17 mL 0.86 mL 1.71 mL

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Product Datasheets for K 252a

Certificate of Analysis / Product Datasheet
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References for K 252a

References are publications that support the biological activity of the product.

Kase et al (1986) K-252a, a potent inhibitor of protein kinase C from microbial origin. J.Antibiot. 39 1059 PMID: 3759657

Knusel and Hefti (1992) K-252 compounds: modulators of neurotrophin signal transduction. J.Neurochem. 59 1987 PMID: 1431889

Morotti et al (2002) K252a inhibits the oncogenic properties of Met, the HGF receptor. Oncogene 21 4885 PMID: 12118367

Ruegg and Burgess (1989) Staurosporine, K-252 and UCN-01: potent but nonspecific inhibitors of protein kinases. TiPS 10 218 PMID: 2672462

If you know of a relevant reference for K 252a, please let us know.

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View all Broad Spectrum Protein Kinase Inhibitor Inhibitors

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7 Citations for K 252a

Citations are publications that use Tocris products. Selected citations for K 252a include:

Park et al (2013) Inactivation of JAK2/STAT3 signaling axis and downregulation of M1 mAChR cause cognitive impairment in klotho mutant mice, a genetic model of aging. Mol Cells 38 1426 PMID: 23389690

Meitzen et al (2011) β1-Adrenergic receptors activate two distinct signaling pathways in striatal neurons. J Neurochem 116 984 PMID: 21143600

Kummer and Cohen (2015) Exercise-induced neuroprotection in the spastic Han Wistar rat: the possible role of brain-derived neurotrophic factor. Neuropsychopharmacology 2015 834543 PMID: 25710032

Martín-Segura et al (2019) Aging Increases Hippocampal DUSP2 by a Membrane Cholesterol Loss-Mediated RTK/p38MAPK Activation Mechanism. Front Neurol 10 675 PMID: 31293510

Do you know of a great paper that uses K 252a from Tocris? Please let us know.

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