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Product Details

YM-254890 | Gq inhibitor

YM-254890 (568580-02-9) is a novel Gαq/11 inhibitor.1 U46619-induced platelet aggregation is inhibited but phorbol ester- or ionophore-induced aggregation is not2 (IC50 = 0.1-0.2 μM)1. It blocks Pasteurella multocida toxin-mediated activation of Gαq.3 A highly useful new tool for studying Gαq/11-coupled receptor signaling and resulting cellular events.4


1) Takasaki (2004), A novel Galphaq/11-selective inhibitor; J. Biol. Chem., 279 47438
2) Uemura et al. (2006), Biological properties of a specific Galpha q/11 inhibitor, YM-254890, on platelet functions and thrombus formation under high-shear stress; Br. J. Pharmacol., 148 61
3) Orth et al. (2005), Pasteurella multocida toxin-induced activation of RhoA is mediated via two families of G{alpha} proteins, G{alpha}g and G{alpha}12/13; J. Biol. Chem., 280 36701
4) Mizuno and Itoh (2009), Functions and regulatory mechanisms of Gq-signaling pathways; Neurosignals, 17 42
5) Kankanamge et al. (2018) Melanopsin (Opn4) utilizes Gαiγ as major signal transducers; J. Cell Sci., 131 Jcs212910 [Focus Citation]
6) Pera et al. (2018) Biased signaling of the proton-sensing receptor OGR1 by benzodiazepines; FASEB J., 32 862[Focus Citation]
7) Ratnayake et al. (2018) Blue light excited retina intercepts cellular signaling; Sci. Rep. 8 10207[Focus Citation]
8) Zimering and Nadkami (2019) Schizophrenia Autoantibodies Promote  “Biased agonism” at the 5-Hydroxytryptamine  2A Receptor: Neurotoxicity is Positively Modulated by Metabotropic  Glutamate 2/3 Receptor Agonism; Endocrinol. Diabetes Metab. J., 3 1 [Focus Citation]

Focus Biomolecules cell signaling reagent supplier, chemical structure of YM-254890 | Gq inhibitor | CAS 568580-02-9

Catalog#  10-1590-0100

Please note that we do not sell to individuals and that all orders placed by non-research organizations will incur a $20 restocking/refund fee.
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Catalog Number:
Gq inhibitor
Isolated from Chromobacterium sp.
Molecular Weight:
Molecular Formula:
Soluble in DMSO (up to 10 mg/ml)
Physical Properties:
White or off-white lyophilized solid
95% by HPLC
NMR (Conforms)
Storage Temperature:
-20°C (des.)
Stable for 1 year as supplied. Solutions in DMSO may be stored at -20°C for up to 1 month.
Shipping Code:
Novel Gαq/11 inhibitor that inhibits U46619-induced platelet aggregation. A highly useful new tool for studying Gαq/11-coupled receptor signaling and resulting cellular events.
Materials provided by Focus Biomolecules are for laboratory research use only and are not intended for human or veterinary applications.

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