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Details

Stereochemistry ABSOLUTE
Molecular Formula C38H35N5O6S2
Molecular Weight 721.844
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of KN-62

SMILES

CN([C@@H](CC1=CC=C(OS(=O)(=O)C2=C3C=CN=CC3=CC=C2)C=C1)C(=O)N4CCN(CC4)C5=CC=CC=C5)S(=O)(=O)C6=CC=CC7=CN=CC=C67

InChI

InChIKey=RJVLFQBBRSMWHX-DHUJRADRSA-N
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

HIDE SMILES / InChI

Molecular Formula C38H35N5O6S2
Molecular Weight 721.844
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

KN-62 (1-[N,O-Bis(5-isoquinolinesulfonyl)-N-methyl-L-tyrosyl]-4-phenylpiperazine) is an inhibitor of Ca2+/calmodulin-dependent protein kinase II (Ca2+/CaM kinase II). In addition, it acts as an antagonist of the P2X7 receptor.

CNS Activity

Curator's Comment: Centrally administered KN-62 is CNS active in animals. No human data available.

Originator

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
Plasticizer DBP Activates NLRP3 Inflammasome through the P2X7 Receptor in HepG2 and L02 Cells.
2016-04
Involvement of CaM-CaMKII-ERK in bisphenol A-induced Sertoli cell apoptosis.
2014-10-03
Neuroprotective effect of resveratrol on ischemia/reperfusion injury in rats through TRPC6/CREB pathways.
2013-07
Exocrine pancreatic carcinogenesis and autotaxin expression.
2012
Involvement of histaminergic receptor mechanisms in the stimulation of NT-3 synthesis in astrocytes.
2011-06
Characterization of protoberberine analogs employed as novel human P2X7 receptor antagonists.
2011-04-15
Activation of ROS/NF-kappaB and Ca2+/CaM kinase II are necessary for VCAM-1 induction in IL-1beta-treated human tracheal smooth muscle cells.
2009-05-15
Induction of nuclear receptors and drug resistance in the brain microvascular endothelial cells treated with antiepileptic drugs.
2008-05
Receptor-mediated tobacco toxicity: acceleration of sequential expression of alpha5 and alpha7 nicotinic receptor subunits in oral keratinocytes exposed to cigarette smoke.
2008-05
Depolarization-induced differentiation of PC12 cells is mediated by phospholipase D2 through the transcription factor CREB pathway.
2008-03
CaMKII regulates retinoic acid receptor transcriptional activity and the differentiation of myeloid leukemia cells.
2007-05
Multiple P2X receptors are involved in the modulation of apoptosis in human mesangial cells: evidence for a role of P2X4.
2007-05
Microarray-based kinase inhibition assay by gold nanoparticle probes.
2007-01-15
Cocaine inhibition of GABA(A) current: role of dephosphorylation.
2006
Activation of CREB by tauroursodeoxycholic acid protects cholangiocytes from apoptosis induced by mTOR inhibition.
2005-06
Nuclear Ca2+ and CaM kinase IV specify hormonal- and Notch-responsiveness.
2005-04
Extracellular zinc triggers ERK-dependent activation of Na+/H+ exchange in colonocytes mediated by the zinc-sensing receptor.
2004-12-10
Endothelin 1 and 3 enhance neuronal nitric oxide synthase activity through ETB receptors involving multiple signaling pathways in the rat anterior hypothalamus.
2004-07
Chelerythrine and other benzophenanthridine alkaloids block the human P2X7 receptor.
2004-07
c-IAP1 is overexpressed in HL-60 cells selected for doxorubicin resistance: effects on etoposide-induced apoptosis.
2003-12-12
Dopamine D1 receptors mediate CREB phosphorylation via phosphorylation of the NMDA receptor at Ser897-NR1.
2003-11
Signalling pathways involved in the sensitisation of mouse nociceptive neurones by nerve growth factor.
2003-09-01
Synthesis and biological activity of N-arylpiperazine-modified analogues of KN-62, a potent antagonist of the purinergic P2X7 receptor.
2003-04-10
Ameliorative effect of NC-1900, a new AVP4-9 analog, through vasopressin V1A receptor on scopolamine-induced impairments of spatial memory in the eight-arm radial maze.
2003-03
CaMKII regulates amphetamine-induced ERK1/2 phosphorylation in striatal neurons.
2002-06-12
Calmodulin kinases II and IV and calcineurin are involved in leukemia inhibitory factor-induced cardiac hypertrophy in rats.
2000-11-10
Estrogen activation of the nuclear orphan receptor CAR (constitutive active receptor) in induction of the mouse Cyp2b10 gene.
2000-11
Signal-dependent activation of the MEF2 transcription factor by dissociation from histone deacetylases.
2000-04-11
MAP kinase-independent induction of proto-oncogene c-fos mRNA by hemin in human cells.
1999-06-24
Effects of antagonists at the human recombinant P2X7 receptor.
1998-07
Inhibition of sandfly fever Sicilian virus (Phlebovirus) replication in vitro by antiviral compounds.
1997-12-24
The isoquinoline derivative KN-62 a potent antagonist of the P2Z-receptor of human lymphocytes.
1997-04
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.
1990-03-15
Patents

Sample Use Guides

In hepatoma cells 1-5 uM KN-62 substantially reduced HIF-1α levels in a dose-dependent manner. In contrast to hepatoma cells, MCF7 (breast cancer) and SK-N-MC (neuroblastoma) cells did not respond to KN-62, even at high concentrations, which suggests that HIF-1α suppression by KN-62 is cancer type-dependent.
Substance Class Chemical
Created
by admin
on Mon Mar 31 19:02:02 GMT 2025
Edited
by admin
on Mon Mar 31 19:02:02 GMT 2025
Record UNII
63HM46XPOW
Record Status Validated (UNII)
Record Version
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Name Type Language
KN-62
Common Name English
KN 62
Preferred Name English
5-ISOQUINOLINESULFONIC ACID, 4-((2S)-2-((5-ISOQUINOLINYLSULFONYL)METHYLAMINO)-3-OXO-3-(4-PHENYL-1-PIPERAZINYL)PROPYL)PHENYL ESTER
Systematic Name English
Code System Code Type Description
FDA UNII
63HM46XPOW
Created by admin on Mon Mar 31 19:02:02 GMT 2025 , Edited by admin on Mon Mar 31 19:02:02 GMT 2025
PRIMARY
PUBCHEM
5312126
Created by admin on Mon Mar 31 19:02:02 GMT 2025 , Edited by admin on Mon Mar 31 19:02:02 GMT 2025
PRIMARY
EPA CompTox
DTXSID70925812
Created by admin on Mon Mar 31 19:02:02 GMT 2025 , Edited by admin on Mon Mar 31 19:02:02 GMT 2025
PRIMARY
CAS
127191-97-3
Created by admin on Mon Mar 31 19:02:02 GMT 2025 , Edited by admin on Mon Mar 31 19:02:02 GMT 2025
PRIMARY
WIKIPEDIA
KN-62
Created by admin on Mon Mar 31 19:02:02 GMT 2025 , Edited by admin on Mon Mar 31 19:02:02 GMT 2025
PRIMARY
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ACTIVE MOIETY