A 484954

A-484954 is a highly selective eukaryotic elongationfactor-2 (eEF2) inhibitor, with an IC50 of 280 nM.

Signaling Pathways >> Neuronal Signaling >> CaMK

Research Areas >> Cancer

IC50: 280 nM (eEF2)[1].

A-484954 is a highly selective eEF2K inhibitor with an IC50 value of 280 nM against eEF2K in the enzymatic assay and little activity against a wide panel of serine/threonine and tyrosine kinases. In enzymatic assay, the IC50 value of A-484954 is increased as the concentration of ATP increased but unaffected by increasing concentrations of calmodulin[1].

A484954 causes relaxation in E (+) and E (-) aorta or mesenteric artery precontracted with NA. Pretreatment with L-NAME but not indomethacin or cimetidine partially inhibits the A484954-induced relaxation in mesenteric artery[2]. Long-term A-484954 treatment inhibits MCT-induced increases PA pressure. It is revealed that A-484954 inhibits MCT-induced PA hypertrophy and fibrosis but not impairment of endothelium-dependent and -independent relaxation. Furthermore, A-484954 inhibits MCT-induced NADPH oxidase-1 expression and ROS generation as well as matrix metalloproteinase-2 activation[3].

[1]. Chen Z, et al. 1-Benzyl-3-cetyl-2-methylimidazolium iodide (NH125) induces phosphorylation of eukaryotic elongation factor-2 (eEF2): a cautionary note on the anticancer mechanism of an eEF2 kinase inhibitor. J Biol Chem. 2011 Dec 23;286(51):43951-8.

[2]. Kodama T, et al. Mechanisms underlying the relaxation by A484954, a eukaryotic elongation factor 2 kinase inhibitor, in rat isolated mesenteric artery. J Pharmacol Sci. 2018 May;137(1):86-92.

[3]. Kameshima S, et al. Eukaryotic elongation factor 2 kinase mediates monocrotaline-induced pulmonary arterial hypertension via reactive oxygen species-dependent vascular remodeling. Am J Physiol Heart Circ Physiol. 2015 May 15;308(10):H1298-305.

KN-93 | STO609 | KN-62 | KN-92-hydrochloride | CaMKII-IN-1 | MLCK inhibitor peptide 18 | Autocamtide-2 | Rimacalib | Calmodulin-Dependent Protein Kinase II (290-309) | Metofenazate | NH 125 | Syntide 2 trifluoroacetate salt