GSK-3β Localizes to the Cardiac Z-Disc to Maintain Length Dependent Activation
Stachowski-Doll MJ, Papadaki M, Martin TG, Ma W, Gong HM, Shao S, Shen S, Muntu NA, Kumar M, Perez E, Martin JL, Moravec CS, Sadayappan S, Campbell SG, Irving T, Kirk JA. GSK-3β Localizes to the Cardiac Z-Disc to Maintain Length Dependent Activation. Circulation Research 2022, 130: 871-886. PMID: 35168370, PMCID: PMC8930626, DOI: 10.1161/circresaha.121.319491.Peer-Reviewed Original ResearchConceptsZ-discGSK-3βZ-disc proteinsCardiac Z-diskLength-dependent activationKnockout miceKinase localizationPhosphorylation sitesNegative regulatorGenetic knockdownVivo roleDependent activationNeonatal rat ventricular cardiomyocytesNovel mechanismGSK-3β levelsHeart failureMyofilament localizationTitin phosphorylationVentricular myocardiumPossible therapeutic targetTitin isoformsTitin stiffnessTherapeutic targetPassive tensionHuman heart
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