2022
PP1cβ dephosphorylates cardiac myosin by MYPT‐dependent and independent mechanisms
Lee E, Liu Z, Nguyen N, Nairn A, Chang A. PP1cβ dephosphorylates cardiac myosin by MYPT‐dependent and independent mechanisms. The FASEB Journal 2022, 36 DOI: 10.1096/fasebj.2022.36.s1.r3877.Peer-Reviewed Original ResearchMyosin light chain phosphataseRegulatory light chainCardiac myosinSmooth muscleNormal cardiac functionMain catalytic subunitSmooth muscle contractionMyosin light chain kinaseMyosin phosphatase targetCardiac functionPP1cβLight chain kinaseCatalytic subunitAccessory subunitsConstitutive phosphorylationProtein stabilityLight chain phosphataseKnockout animalsMuscle contractionMuscle pathogenesisConditional knockoutCardiac muscle myosinCardiac myocytesCardiac musclePhosphatase activity
2001
Angiotensin II regulates phosphorylation of translation elongation factor-2 in cardiac myocytes
Everett A, Stoops T, Nairn A, Brautigan D. Angiotensin II regulates phosphorylation of translation elongation factor-2 in cardiac myocytes. AJP Heart And Circulatory Physiology 2001, 281: h161-h167. PMID: 11406481, DOI: 10.1152/ajpheart.2001.281.1.h161.Peer-Reviewed Original ResearchMeSH KeywordsAngiotensin IIAnimalsCells, CulturedChromonesEnzyme InhibitorsMitogen-Activated Protein KinasesMorpholinesMyocardiumPeptide Elongation Factor 2Phosphoprotein PhosphatasesPhosphorylationProtein BiosynthesisProtein Phosphatase 2RatsRats, Sprague-DawleyReceptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2Receptors, AngiotensinSignal TransductionSirolimusConceptsEukaryotic elongation factor 2Mitogen-activated protein kinaseElongation factor 2Protein phosphatase 2A inhibitor okadaic acidTranslation elongation factor 2Protein synthesisInhibitor okadaic acidFactor 2Rapamycin (mTOR) inhibitor rapamycinProtein translationDephosphorylated statePolypeptide elongationII-dependent increaseProtein kinaseEEF2 kinaseOkadaic acidDependent regulationInhibitor FK506MAPK activationPD 98059Cardiac myocytesDephosphorylationInhibitor rapamycinNeonatal cardiac myocytesRat neonatal cardiac myocytes
1994
Regulation of the gating of cystic fibrosis transmembrane conductance regulator C1 channels by phosphorylation and ATP hydrolysis.
Hwang T, Nagel G, Nairn A, Gadsby D. Regulation of the gating of cystic fibrosis transmembrane conductance regulator C1 channels by phosphorylation and ATP hydrolysis. Proceedings Of The National Academy Of Sciences Of The United States Of America 1994, 91: 4698-4702. PMID: 7515176, PMCID: PMC43855, DOI: 10.1073/pnas.91.11.4698.Peer-Reviewed Original ResearchConceptsCFTR channelsATP hydrolysisPresence of ATPDomains of CFTRCystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channelProtein kinase AATP analogue 5'Kinase AOpen probabilityAMP-PNPPhosphorylationLow open probabilityCl- channelsATPATP actionIntact cardiac myocytesNucleotidesCFTRSecond siteExcised patchesHigh open probabilityCardiac myocytesChannel closingC1 channelsAnalogue 5Coupling of CFTR Cl− channel gating to an ATP hydrolysis cycle
Baukrowitz T, Hwang T, Nairn A, Gadsby D. Coupling of CFTR Cl− channel gating to an ATP hydrolysis cycle. Neuron 1994, 12: 473-482. PMID: 7512348, DOI: 10.1016/0896-6273(94)90206-2.Peer-Reviewed Original ResearchConceptsCystic fibrosis transmembrane conductance regulatorATP hydrolysis cycleHydrolysis cycleCFTR channelsFibrosis transmembrane conductance regulatorProtein kinase ATransmembrane conductance regulatorATP hydrolysisKinase AConductance regulatorNucleoside triphosphatesChannel openingInorganic phosphate analogueATPPhosphate analogueCardiac myocytesInorganic phosphateMean open timeRegulatorHydrolysis productsBeF3Open timeCycleTriphosphate
1989
Chloride conductance regulated by cyclic AMP-dependent protein kinase in cardiac myocytes
Bahinski A, Nairn A, Greengard P, Gadsby D. Chloride conductance regulated by cyclic AMP-dependent protein kinase in cardiac myocytes. Nature 1989, 340: 718-721. PMID: 2475783, DOI: 10.1038/340718a0.Peer-Reviewed Original ResearchConceptsCyclic AMP-dependent protein kinaseAMP-dependent protein kinaseProtein kinaseChloride ion currentCatalytic subunitRegulatory proteinsKinase activationIon channelsKinaseChloride conductanceCalcium entrySingle-channel currentsCardiac myocytesCellsHeart cellsPhosphorylationAction potential repolarizationConductanceSubunitsProteinIntracellular dialysisMyocytesRegulationChannel currentsAdrenergic stimulation