CaMK Inhibitor

KN-93 is a cell-permeable, reversible and competitive inhibitor calmodulin-dependent kinase type II (CaMKII) with a K_i of 370 nM.

STO-609 is a selective and cell-permeable inhibitor of the Ca²⁺/calmodulin-dependent protein kinase kinase (CaM-KK), with K_i values of 80 and 15 ng/mL for recombinant CaM-KKα and CaM-KKβ, respectively. STO-609 inhibits AMP-activated protein kinase kinase (AMPKK) activity in HeLa cell lysates with an IC₅₀ ~0.02 g/ml.

SKF-96365 hydrochloride is a TRPC channel antagonist and store-operated calcium entry (SOCE) inhibitor. SKF-96365 hydrochloride reduces calcium ion influx by inhibiting the activity and expression of TRPC6, STIM1 and Orai1. SKF-96365 hydrochloride inhibits voltage-gated sodium current (cardiac I_Na/NaV1.5) and slows myocardial conduction. SKF-96365 hydrochloride inhibits phosphorylation/activation of CaMKIIγ and suppresses the downstream AKT signaling pathway. SKF-96365 hydrochloride induces G₂/M phase cell cycle arrest, apoptosis and cytoprotective autophagy in colorectal cancer cells. SKF-96365 hydrochloride alleviates allergic rhinitis symptoms by reducing inflammatory cytokine levels. SKF-96365 hydrochloride reduces intracellular calcium overload, inhibits Homer1 expression, prevents nuclear damage and suppresses apoptosis. SKF-96365 hydrochloride inhibits the growth of colorectal cancer xenografts in nude mice. SKF-96365 hydrochloride is applicable to research related to allergic rhinitis, colorectal cancer, Parkinson's disease, persistent spontaneous nociception and hyperalgesia.

KN-93 phosphate is a cell-permeable, reversible and competitive inhibitor calmodulin-dependent kinase type II (CaMKII) with a Ki of 370 nM.

A-484954 is a highly selective eukaryotic elongationfactor-2 kinase(eEF2K) inhibitor, with an IC₅₀ of 280 nM.

Oxoglaucine (O-Methylatheroline) is a natural product with multiple activities including autophagy activation, anti-inflammation, antibacterial activity, and immunoregulation. Oxoglaucine inhibits the TRPV5/calmodulin/CAMK-II pathway, suppresses TGFβ-induced Smad2 phosphorylation by upregulating Smad7, blocks Ca²⁺ influx, activates autophagy, alleviates apoptosis and inflammation, inhibits ROS production and the expression of fibrosis markers in hepatocytes, and regulates immune cell populations and responses. Oxoglaucine protects against infections caused by Candida albicans and Klebsiella pneumoniae, and exerts effects on adjuvant-induced arthritis. Oxoglaucine can be used in studies related to arthritis, liver fibrosis, bacterial infections, and fungal infections.

K-252a, a staurosporine analog, inhibits protein kinase, with IC₅₀ values of 470 nM, 140 nM, 270 nM, and 1.7 nM for PKC, PKA, Ca²⁺/calmodulin-dependent kinase type II, and phosphorylase kinase, respectively. K-252a is a potent inhibitor (IC₅₀ of 3 nM) of the tyrosine protein kinase (TRK) activity of the NGF receptor gp140trk, the product of the trk protooncogene.

Trifluoperazine dihydrochloride, an antipsychotic agent, acts by blocking central dopamine receptors. Trifluoperazine dihydrochloride is a potent α1-adrenergic receptor antagonist. Trifluoperazine dihydrochloride is a potent NUPR1 inhibitor exerting anticancer activity. Trifluoperazine dihydrochloride is a calmodulin inhibitor, and also inhibits P-glycoprotein. Trifluoperazine dihydrochloride can be used for the research of schizophrenia. Trifluoperazine dihydrochloride acts as a reversible inhibitor of influenza virus morphogenesis.

KN-62 is a selective and reversible inhibitor of calmodulin-dependent protein kinase II (CaMK-II) with a K_i of 0.9 μM for rat brain CaMK-II. KN-62 directly binds to the calmodulin binding site of CaMK-II. KN-62 displays noncompetitive antagonism at P2X₇ receptors in HEK293 cells, with an IC₅₀ value of approximately 15 nM.

Trifluoperazine, an antipsychotic agent, acts by blocking central dopamine receptors. Trifluoperazine is a potent α1-adrenergic receptor antagonist. Trifluoperazine is a potent NUPR1 inhibitor exerting anticancer activity. Trifluoperazine is a calmodulin inhibitor, and also inhibits P-glycoprotein. Trifluoperazine can be used for the research of schizophrenia. Trifluoperazine acts as a reversible inhibitor of influenza virus morphogenesis.

CaMKII-IN-1 is a highly selective inhibitor of CaMKII with an IC50 value of 63nM. It has almost no effect on CaMKIV, MLCK, p38a, Akt1, and PKC.

NH125 is a potent and selective inhibitor of eukaryotic elongation factor 2 kinase (eEF-2K/CaMKIII) with an IC₅₀ of 60 nM for eEF-2K. NH125 kills methicillin-resistant S. aureus (MRSA) persisters by interacting with and disrupting membranes.

TAT-CN21 is a potent CaMKII inhibitor with an IC₅₀ of 77.2 nM. TAT-CN21 inhibits both calcium/calmodulin-dependent and autonomously activated CaMKII, blocks glutamate-induced translocation of CaMK IIα, and reverses the enhanced phosphorylation of CaMKII at Thr286 following excitotoxic injury. TAT-CN21 shows application potential in studies related to ischemic stroke by reducing neuronal excitotoxicity and exacerbating pre-existing long-term neuronal death prior to injury. TAT-CN21 improves definitive behaviors in rats with residual nerve injury without altering indicators such as mechanical/thermal hyperalgesia or spatial memory. TAT-CN21 can also be used in studies related to neuropathic pain.

Coniferyl ferulate is an orally active phenolic acid compound. Coniferyl ferulate is a potent inhibitor of glutathione S-transferase (GST) (IC₅₀ = 0.3 μM), which downregulates P-gp expression, induces apoptosis in B-MD-C1 (ADR+/+) cells, and reverses multidrug resistance. Coniferyl ferulate blocks the NMDAR/NR2B-CaMKII-MAPKs signaling pathway, inhibits ROS production and mitochondrial apoptosis, while reshapes the intestinal microbiota and microbial metabolism, ameliorates colonic inflammation and alleviates depressive symptoms in mice. Coniferyl ferulate can alleviate the toxicity of xylene to hematopoietic stem and progenitor cells by targeting Mgst2. Coniferyl ferulate exhibits antibacterial activity against the Gram-positive Bacillus subtilis and Staphylococcus aureus.

Neoandrographolide is a diterpenoid compound isolated from Andrographis paniculata. Neoandrographolide inhibits osteoclasts differentiation and bone resorption through inhibition of MAPK/NF-κB/PI3K/AKT/GSK3β/PPAR/CAMK signaling pathway. Neoandrographolide inhibits apoptosis in rat embryonic ventricular cardiomyocytes. Neoandrographolide inhibits iNOS and the generation of ROS, activates eNOS, exhibiting anti-inflammatory and hypolipidemic activity.

KN-93 hydrochloride is a cell-permeable, reversible and competitive inhibitor calmodulin-dependent kinase type II (CaMKII) with a K_i of 370 nM.

CS640 (Compound 19) is a chemical probe and a calmodulin-dependent kinase inhibitor. CS640 inhibits CaMK1D, CaMK1B, CaMK1A, CaMK1G, MEK5, RIPK4, mLK3 and PIP5K1, with IC₅₀ values of 8, 3, 1, 1, 25 nM, 5.69, 2.75 and 11.2 μM, respectively. CS640 blocks Aβ-induced hyperphosphorylation of tau protein at the Thr181 site, but fails to protect primary mouse cortical neurons from Aβ-induced toxic damage. CS640 is applicable to research related to Alzheimer's disease.

CS587 is a specific inhibitor of CaMK1D with neurocytotoxicity at 10 μM. CS587 modulates the sensitivity of neuronal cells to Aβ oligomer toxicity.

MLCK inhibitor peptide 18 is a myosin light chain kinase (MLCK) inhibitor with an IC₅₀ of 50 nM, and inhibits CaM kinase II only at 4000-fold higher concentrations.

RA306 is an orally active CaMKIIδ/γ inhibitor with IC₅₀ values of 15, 25, 61, and 420 nM against CaMKIIδ, γ, α, and β isoforms, respectively. RA306 reduces the serine/threonine phosphorylation level of PEAK1, inhibits PEAK1-mediated cancer cell migration and invasion, and attenuates the growth and metastasis of cancer xenografts. RA306 can be used in research related to triple-negative breast cancer and dilated cardiomyopathy.