STO-609 acetate
Based on 37 publication(s) in Google Scholar
STO-609 acetate is a selective and cell-permeable inhibitor of the Ca2+/calmodulin-dependent protein kinase kinase (CaM-KK), with Ki values of 80 and 15 ng/mL for recombinant CaM-KKα and CaM-KKβ, respectively. STO-609 acetate inhibits AMP-activated protein kinase kinase (AMPKK) activity in HeLa cell lysates with an IC50 ~0.02 g/ml.
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- CAS No.: 1173022-21-3
- Formule: C21H14N2O5
- Masse moléculaire:374.35
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Stockage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications Citing Use of MedChemExpress (MCE) STO-609 acetate
More- Signal Transduct Target Ther. 2021 Jan 25;6(1):29. [Abstract]
- J Hematol Oncol. 2022 Jul 14;15(1):93. [Abstract]
- Nat Metab. 2022 Sep;4(9):1185-1201. [Abstract]
- Nat Aging. 2025 Jun;5(6):1097-1113. [Abstract]
- Autophagy. 2026 Jun 6:1-20. [Abstract]
- Chem Eng J. 2025 Sep 15.
- Phytomedicine. 2024 Dec:135:156170. [Abstract]
- Cell Chem Biol. 2026 Jun 18;33(6):767-784.e7. [Abstract]
- Neural Regen Res. 2025 Apr 29. [Abstract]
- Mol Med. 2025 Oct 6;31(1):308. [Abstract]
- Cell Rep. 2026 May 22;45(6):117427. [Abstract]
- Cell Rep. 2022 Nov 22;41(8):111707. [Abstract]
- Cell Prolif. 2021 Jan;54(1):e12919. [Abstract]
- J Invest Dermatol. 2022 Jan;142(1):189-200.e8. [Abstract]
- Front Immunol. 2019 Nov 14:10:2650. [Abstract]
- PLoS Biol. 2024 Mar 25;22(3):e3002565. [Abstract]
- J Ethnopharmacol. 2026 Apr 24:361:121244. [Abstract]
- J Agric Food Chem. 2026 Feb 11;74(5):4582-4598. [Abstract]
- EMBO Rep. 2025 Nov 17. [Abstract]
- Eur J Pharmacol. 2025 Jan 15:987:177158. [Abstract]
- Chem Biol Interact. 2025 Sep 5:418:111577. [Abstract]
- Chem Biol Interact. 2025 Sep 19:111750. [Abstract]
- J Cell Mol Med. 2021 Nov;25(21):9953-9971. [Abstract]
- J Virol. 2021 Mar 1;95(5):e01321-20. [Abstract]
- J Photochem Photobiol B. 2020 Dec:213:112075. [Abstract]
- Ren Fail. 2025 Dec;47(1):2438857. [Abstract]
- Ren Fail. 2024 Dec;46(1):2354918. [Abstract]
- Cell Biol Int. 2024 Jan;48(1):46-59. [Abstract]
- Food Chem Toxicol. 2021 Jan:147:111911. [Abstract]
- Vet J. 2026 Apr:316:106599. [Abstract]
- Endocr J. 2022 Apr 28;69(4):385-397. [Abstract]
- J Biophotonics. 2026 Jun;19(6):e70313. [Abstract]
- Virus Genes. 2022 Apr;58(2):133-142. [Abstract]
- bioRxiv. 2026 Jun 16.
- Res Sq. 2026 May 13.
- Oxid Med Cell Longev. 2021 Oct 5:2021:8542809. [Abstract]
- Oxid Med Cell Longev. 2021 Jan 25:2021:8836058. [Abstract]
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Activité biologique
STO-609 inhibits the activities of recombinant CaM-KKα and CaM-KKβ isoforms, with Ki values of 80 and 15 ng/mL, respectively, and also inhibits their autophosphorylation activities. STO-609 is highly selective for CaM-KK without any significant effect on the downstream CaM kinases (CaM-KI and -IV), and the IC50 value of the compound against CaM-KII is 10 μg/mL. STO-609 inhibits constitutively active CaM-KKα as well as the wild-type enzyme. In transfected HeLa cells, STO-609 suppresses the Ca2+-induced activation of CaM-KIV in a dose-dependent manner. STO-609 significantly reduces the endogenous activity of CaM-KK in SH-SY5Y neuroblastoma cells at a concentration of 1μg/mL (80% inhibitory rate)[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1173022-21-3
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Masse moléculaire 374.35
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Formule C21H14N2O5
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SMILES
O=C(C1=C2C3=C(C4=NC5=CC=CC=C5N4C(C3=CC=C2)=O)C=C1)O.CC(O)=O
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (37)
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Journal Impact Factor
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Most Recent
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Signal Transduct Target Ther
2021 Jan 25;6(1):29. PMID: 33487631
STO-609 acetate purchased from MedChemExpress. Usage Cited in: Signal Transduct Target Ther. 2021 Jan 25;6(1):29. [Abstract]
Cells were pretreated with STO-609 (10 μM; 1 h) followed by exposure to NM (20 μM) for an additional 24 h. STO-609 markedly inhibited NM-induced AMPK and ULK1 activation.
STO-609 acetate purchased from MedChemExpress. Usage Cited in: Signal Transduct Target Ther. 2021 Jan 25;6(1):29. [Abstract]
Cells were treated with STO-609 (10 µM; 1 h) following the addition of NM (20 µM) for another 24 h. Total cell lysates were collected and the levels of indicated proteins were detected by western blotting. STO-609 treatment markedly inhibited NM-induced ULK1 activation and autophagy induction but had no obvious effect on NM-induced pmTOR expression in keratinocytes.
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J Hematol Oncol
Allosteric activation of the metabolic enzyme GPD1 inhibits bladder cancer growth via the lysoPC-PAFR-TRPV2 axis. [Abstract]2022 Jul 14;15(1):93. PMID: 35836291 -
Nat Metab
Orosomucoid 2 maintains hepatic lipid homeostasis through suppression of de novo lipogenesis. [Abstract]2022 Sep;4(9):1185-1201. PMID: 36050503
STO-609 acetate purchased from MedChemExpress. Usage Cited in: Nat Metab. 2022 Sep;4(9):1185-1201. [Abstract]
Mouse primary hepatocytes were incubated with 13C acetate (1 mM) containing vehicle control (PBS), ORM2 (100 ng ml−1) and STO-609 (5 μM) for 6 h. STO-609 markedly abolished suppression of DNL rate by ORM2 in primary hepatocytes from C57BL/6J healthy mice.
STO-609 acetate purchased from MedChemExpress. Usage Cited in: Nat Metab. 2022 Sep;4(9):1185-1201. [Abstract]
MPHs were pre-incubated with palmitic acid (200 μM) for 12 hr, and then treated with ORM2 protein (100 ng/ml) or vehicle control (PBS) for 6 h, in the presence or absence of STO-609 (5 μM). STO-609 largely blocked the inhibitory effects of ORM2 on cellular TG accumulation and lipogenic gene expression.
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Nat Aging
Activation of AMPK by GLP-1R agonists mitigates Alzheimer-related phenotypes in transgenic mice. [Abstract]2025 Jun;5(6):1097-1113. PMID: 40394225
STO-609 acetate purchased from MedChemExpress. Usage Cited in: Nat Aging. 2025 Jun;5(6):1097-1113. [Abstract]
Primary WT mouse neurons were treated with exendin-4 with or without STO-609, a CaMKK2 inhibitor. STO-609 significantly attenuated the effect of exendin-4 on AMPK phosphorylation.
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Autophagy
Organelle contact reorganization drives calcium-dependent autophagy under proteostatic stress. [Abstract]2026 Jun 6:1-20. PMID: 42152515 -
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Phytomedicine
Kaixinsan regulates neuronal mitochondrial homeostasis to improve the cognitive function of Alzheimer's disease by activating CaMKKβ-AMPK-PGC-1α signaling axis. [Abstract]2024 Dec:135:156170. PMID: 39520951 -
Cell Chem Biol
The cytotoxic effect of prexasertib is a consequence of dual inhibition on both CHK1 and AMPK. [Abstract]2026 Jun 18;33(6):767-784.e7. PMID: 42061410 -
Neural Regen Res
Trans-spinal magnetic stimulation attenuates neuropathic pain caused by spinal cord injury. [Abstract]2025 Apr 29. PMID: 40313090 -
Mol Med
CAMKK2 restored mitochondrial dynamics homeostasis to alleviate pulmonary fibrosis via AMPK/PGC-1α signaling pathway in lung fibroblasts. [Abstract]2025 Oct 6;31(1):308. PMID: 41053564 -
Cell Rep
Gasdermin C reprograms metabolism through the CAMKK2-AMPK axis to promote lung adenocarcinoma progression and radioresistance. [Abstract]2026 May 22;45(6):117427. PMID: 42176271 -
Cell Rep
circPRKAA1 activates a Ku80/Ku70/SREBP-1 axis driving de novo fatty acid synthesis in cancer cells. [Abstract]2022 Nov 22;41(8):111707. PMID: 36417875 -
Cell Prolif
Inhibition of deubiquitination by PR-619 induces apoptosis and autophagy via ubi-protein aggregation-activated ER stress in oesophageal squamous cell carcinoma. [Abstract]2021 Jan;54(1):e12919. PMID: 33129231 -
J Invest Dermatol
CAMKK2 Defines Ferroptosis Sensitivity of Melanoma Cells by Regulating AMPK‒NRF2 Pathway. [Abstract]2022 Jan;142(1):189-200.e8. PMID: 34242660 -
Front Immunol
Isovitexin-Mediated Regulation of Microglial Polarization in Lipopolysaccharide-Induced Neuroinflammation via Activation of the CaMKKβ/AMPK-PGC-1α Signaling Axis. [Abstract]2019 Nov 14:10:2650. PMID: 31798583 -
PLoS Biol
The scale of zebrafish pectoral fin buds is determined by intercellular K+ levels and consequent Ca2+-mediated signaling via retinoic acid regulation of Rcan2 and Kcnk5b. [Abstract]2024 Mar 25;22(3):e3002565. PMID: 38527087 -
J Ethnopharmacol
Total flavonoids isolated from Fructus Mume (Prunus mume Sieb. et Zucc.) mitigate Parkinson's disease progression by promoting neuronal mitophagy via activation of the CaMKKβ/AMPK signaling pathway. [Abstract]2026 Apr 24:361:121244. PMID: 41564984 -
J Agric Food Chem
Protocatechuic Acid, a Gut-Derived Dietary Metabolite, Attenuates Endothelial Dysfunction via GPER-Mediated NO Signaling. [Abstract]2026 Feb 11;74(5):4582-4598. PMID: 41605862 -
EMBO Rep
2025 Nov 17. PMID: 41249580 -
Eur J Pharmacol
VDAC1-NF-κB/p65-mediated S100A16 contributes to myocardial ischemia/reperfusion injury by regulating oxidative stress and inflammatory response via calmodulin/CaMKK2/AMPK pathway. [Abstract]2025 Jan 15:987:177158. PMID: 39613175 -
Chem Biol Interact
Platycodin D reverses tumor necrosis factor-α-induced endothelial dysfunction by increasing nitric oxide through G protein-coupled estrogen receptor-mediated eNOS activity. [Abstract]2025 Sep 5:418:111577. PMID: 40447174 -
Chem Biol Interact
Erianin reverses 5-FU resistance by targeting CALM1/CAMKK2 and activating autophagy in colorectal cancer. [Abstract]2025 Sep 19:111750. PMID: 40976489 -
J Cell Mol Med
Dihydromyricetin resists inflammation-induced muscle atrophy via ryanodine receptor-CaMKK-AMPK signal pathway. [Abstract]2021 Nov;25(21):9953-9971. PMID: 34676967 -
J Virol
Human Cytomegalovirus Induces the Expression of the AMPKa2 Subunit to Drive Glycolytic Activation and Support Productive Viral Infection. [Abstract]2021 Mar 1;95(5):e01321-20. PMID: 33268515 -
J Photochem Photobiol B
Photobiomodulation reduces hepatic lipogenesis and enhances insulin sensitivity through activation of CaMKKβ/AMPK signaling pathway. [Abstract]2020 Dec:213:112075. PMID: 33152638 -
Ren Fail
Dapagliflozin improves diabetic kidney disease by inhibiting ferroptosis through β-hydroxybutyrate production. [Abstract]2025 Dec;47(1):2438857. PMID: 39746795 -
Ren Fail
β-Hydroxybutyrate Protects Against Cisplatin-Induced Renal Damage via Regulating Ferroptosis. [Abstract]2024 Dec;46(1):2354918. PMID: 38757723 -
Cell Biol Int
Pachymic acid (PA) inhibits ferroptosis of cardiomyocytes via activation of the AMPK in mice with ischemia/reperfusion-induced myocardial injury. [Abstract]2024 Jan;48(1):46-59. PMID: 37750505 -
Food Chem Toxicol
IRE1 and CaMKKβ pathways to reveal the mechanism involved in microcystin-LR-induced autophagy in mouse ovarian cells. [Abstract]2021 Jan:147:111911. PMID: 33290805 -
Vet J
Pinobanksin alleviates 4℃ semen preservation-induced oxidative damage and apoptosis in Wenchang Pig spermatozoa via the CaMKKβ/AMPK/Nrf2 pathway. [Abstract]2026 Apr:316:106599. PMID: 41698643 -
Endocr J
Rutin promotes white adipose tissue "browning" and brown adipose tissue activation partially through the calmodulin-dependent protein kinase kinase β/AMP-activated protein kinase pathway. [Abstract]2022 Apr 28;69(4):385-397. PMID: 34719526 -
J Biophotonics
2026 Jun;19(6):e70313. PMID: 42324068 -
Virus Genes
AMP-activated kinase regulates porcine reproductive and respiratory syndrome virus infection in vitro. [Abstract]2022 Apr;58(2):133-142. PMID: 35254586 -
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Oxid Med Cell Longev
Dihydromyricetin Ameliorates Inflammation-Induced Insulin Resistance via Phospholipase C-CaMKK-AMPK Signal Pathway. [Abstract]2021 Oct 5:2021:8542809. PMID: 34650665 -
Oxid Med Cell Longev
Apelin/APJ-Manipulated CaMKK/AMPK/GSK3 β Signaling Works as an Endogenous Counterinjury Mechanism in Promoting the Vitality of Random-Pattern Skin Flaps. [Abstract]2021 Jan 25:2021:8836058. PMID: 33574981
Pureté et documentation
Références
[1]. Tokumitsu H, et al. STO-609, a specific inhibitor of the Ca(2+)/calmodulin-dependent protein kinase kinase. J Biol Chem. 2002 May 3;277(18):15813-8. [Content Brief]
[2]. Kukimoto-Niino M, et al. Crystal structure of the Ca2+/calmodulin-dependent protein kinase kinase in complex with the inhibitor STO-609. J Biol Chem. 2011 Jun 24;286(25):22570-9. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)