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Merck
CN

K1385

KN-93

synthetic (organic), ≥98% (HPLC),  Ca2+/calmodulin-dependent protein kinase II inhibitor, powder

Synonym(s):

N-[2-[N-(4-Chlorocinnamyl)-N-methylaminomethyl]phenyl]-N-(2-hydroxyethyl)-4-methoxybenzenesulfonamide phosphate salt, N-[2-[[[3-(4′-Chlorophenyl)-2-propenyl]methylamino]methyl]phenyl]-N-(2-hydroxyethyl)-4′-methoxybenzenesulfonamide phosphate salt

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About This Item

Empirical Formula (Hill Notation):
C26H29ClN2O4S · H3PO4
CAS Number:
139298-40-1
Molecular Weight:
599.03
UNSPSC Code:
51111800
PubChem Substance ID:
329817125
NACRES:
NA.77
MDL number:
MFCD03788201

Key Documents

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Product Name

KN-93, ≥98% (HPLC)

biological source

synthetic (organic)

Quality Level

200

assay

≥98% (HPLC)

form

powder

color

white

solubility

DMSO: 1 mg/mL, H2O: soluble

storage temp.

2-8°C

SMILES string

OP(O)(O)=O.COc1ccc(cc1)S(=O)(=O)N(CCO)c2ccccc2CN(C)C\C=C\c3ccc(Cl)cc3

InChI

1S/C26H29ClN2O4S.H3O4P/c1-28(17-5-6-21-9-11-23(27)12-10-21)20-22-7-3-4-8-26(22)29(18-19-30)34(31,32)25-15-13-24(33-2)14-16-25;1-5(2,3)4/h3-16,30H,17-20H2,1-2H3;(H3,1,2,3,4)/b6-5+;

InChI key

NNKJTPOXLIILMB-IPZCTEOASA-N

Related Categories

Application

KN-93 has been used:
  • as an inhibitor to block αCaMKII (Ca2+/calmodulin-dependent protein kinase IIα)
  • as CaMKII inhibitor to pre-treat hippocampal slices
  • to treat the cells, to alter the cytoskeleton (CSK) structure and function during the experiment

Biochem/physiol Actions

KN-93 is a selective Ca2+/calmodulin-dependent protein kinase II inhibitor, which has been implicated in the regulation of smooth muscle contractility. CaM kinase II activation was inhibited by KN-93 pretreatment (IC50 ~1 μM). KN-93 inhibited histamine-induced tonic force maintenance, whereas early force development and MLC20 phosphorylation responses during the entire time course were unaffected. Both force development and maintenance in response to KCl were inhibited by KN-93. Rapid increases in KCl-induced MLC20 phosphorylation were also inhibited by KN-93, whereas steady-state MLC20 phosphorylation responses were unaffected. In contrast, phorbol 12,13-dibutyrate (PDBu) did not activate CaM kinase II and PDBu-stimulated force development was unaffected by KN-93. Thus KN-93 appears to target a step(s) essential for force maintenance in response to physiological stimuli, suggesting a role for CaM kinase II in regulating tonic contractile responses in arterial smooth muscle. Pharmacological activation of protein kinase C bypasses the KN-93 sensitive step.
KN-93 is a selective Ca2+/calmodulin-dependent protein kinase II inhibitor.

Features and Benefits

This compound is featured on the Ca/CaMKs page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Disclaimer

Photosensitive

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000497870
0000497869
0000497869
0000497870
0000427943

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Thomas Hennig et al.
PLoS pathogens, 14(3), e1006954-e1006954 (2018-03-27)
Lytic herpes simplex virus 1 (HSV-1) infection triggers disruption of transcription termination (DoTT) of most cellular genes, resulting in extensive intergenic transcription. Similarly, cellular stress responses lead to gene-specific transcription downstream of genes (DoG). In this study, we performed a
Potentiation of Schaffer-Collateral CA1 Synaptic Transmission by eEF2K and p38 MAPK Mediated Mechanisms
Weng W, et al.
Frontiers in Cellular Neuroscience, 247-247 (2016)
S Tessier et al.
Circulation research, 85(9), 810-819 (1999-10-26)
Ca(2+)/calmodulin-dependent protein kinases II (CaMKII) have important functions in regulating cardiac excitability and contractility. In the present study, we examined whether CaMKII regulated the transient outward K(+) current (I(to)) in whole-cell patch-clamped human atrial myocytes. We found that a specific
Kristen H Jardine et al.
Scientific reports, 10(1), 9209-9209 (2020-06-10)
Reactivated long-term memories can become labile and sensitive to modification. Memories in this destabilized state can be weakened or strengthened, but there is limited research characterizing the mechanisms underlying retrieval-induced qualitative updates (i.e., information integration). We have previously implicated cholinergic
Wingless-type mammary tumor virus integration site family, member 5A (Wnt5a) regulates human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein 120 (gp120)-induced expression of pro-inflammatory cytokines via the Ca2+/calmodulin-dependent protein kinase II (CaMKII) and c-Jun N-terminal kinase (JNK) signaling pathways
Li B, et al.
Test, 288(19), 13610-13619 (2013)
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Global Trade Item Number

SKUGTIN
K1385-.1MG04061833867952
K1385-.5MG04061833867969

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