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STO-609

Catalog No.GC37694

A CaMKK inhibitor

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STO-609 Chemical Structure

Cas No.: 52029-86-4

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1mg
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5mg
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10mg
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25mg
$242.00
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50mg
$387.00
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Sample solution is provided at 25 µL, 10mM.

Description of STO-609

STO-609 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 inhibits AMP-activated protein kinase kinase (AMPKK) activity in HeLa cell lysates with an IC50 ~0.02 g/ml. Ki: 80 ng/mL (CaM-KKα), 15 ng/mL (CaM-KKβ)[1]

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].

[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. [2]. Kukimoto-Niino M, et al. Crystal structure of the Ca••/calmodulin-dependent protein kinase kinase in complex with the inhibitor STO-609. J Biol Chem. 2011 Jun 24;286(25):22570-9.

Chemical Properties of STO-609

Cas No. 52029-86-4 SDF
Canonical SMILES O=C(C1=C2C3=C(C4=NC5=CC=CC=C5N4C(C3=CC=C2)=O)C=C1)O
Formula C19H10N2O3 M.Wt 314.29
Solubility DMSO: 5.6 mg/mL (17.82 mM and warming); Water: < 0.1 mg/mL (insoluble) Storage Store at -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of STO-609

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1 mg 5 mg 10 mg
1 mM 3.1818 mL 15.9089 mL 31.8177 mL
5 mM 0.6364 mL 3.1818 mL 6.3635 mL
10 mM 0.3182 mL 1.5909 mL 3.1818 mL
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Average Rating: 5 ★★★★★ (Based on Reviews and 33 reference(s) in Google Scholar.)

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