Severed Channels Probe Regulation of Gating of Cystic Fibrosis Transmembrane Conductance Regulator by Its Cytoplasmic Domains
Csanády L, Chan K, Seto-Young D, Kopsco D, Nairn A, Gadsby D. Severed Channels Probe Regulation of Gating of Cystic Fibrosis Transmembrane Conductance Regulator by Its Cytoplasmic Domains. The Journal Of General Physiology 2000, 116: 477-500. PMID: 10962022, PMCID: PMC2233695, DOI: 10.1085/jgp.116.3.477.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAdenylyl ImidodiphosphateAnimalsBase SequenceCyclic AMP-Dependent Protein KinasesCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorDNA PrimersFemaleHumansIn Vitro TechniquesIon Channel GatingModels, BiologicalMutationOocytesPhosphorylationProtein Structure, TertiaryRecombinant ProteinsXenopusConceptsR domainCFTR channelsPhosphorylated R domainWild-type CFTR channelsCytoplasmic regulatory domainCystic fibrosis transmembrane conductance regulatorNucleotide Binding DomainFibrosis transmembrane conductance regulatorDetailed functional characteristicsWT channelsApparent ATP affinityTransmembrane conductance regulatorCFTR Cl- channelPresence of PKANonhydrolyzable ATP analogue AMPPNPATP analogue AMPPNPATP bindingRegulatory domainCytoplasmic domainWt-CFTRBinding domainsGating eventsConductance regulatorATP affinityFunctional interactionSevered Molecules Functionally Define the Boundaries of the Cystic Fibrosis Transmembrane Conductance Regulator's Nh2-Terminal Nucleotide Binding Domain
Chan K, Csanády L, Seto-Young D, Nairn A, Gadsby D. Severed Molecules Functionally Define the Boundaries of the Cystic Fibrosis Transmembrane Conductance Regulator's Nh2-Terminal Nucleotide Binding Domain. The Journal Of General Physiology 2000, 116: 163-180. PMID: 10919864, PMCID: PMC2229491, DOI: 10.1085/jgp.116.2.163.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine MonophosphateAnimalsCystic Fibrosis Transmembrane Conductance RegulatorEndoplasmic ReticulumEpitopesFemaleGene DeletionGene ExpressionIon Channel GatingKineticsMembrane PotentialsMolecular Sequence DataMutagenesisOligopeptidesOocytesPatch-Clamp TechniquesPeptide FragmentsPeptidesPrecipitin TestsProtein BindingProtein Structure, TertiarySequence Homology, Amino AcidTransfectionXenopus laevisConceptsR domainCFTR channelsCOOH terminusMature formFull-length CFTRCystic fibrosis transmembrane conductance regulatorAmino acids 590Nucleotide Binding DomainFibrosis transmembrane conductance regulatorExcised patch recordingsChannel activityFamily of ATPRequirement of phosphorylationCFTR channel activityTransmembrane conductance regulatorNBD1 domainSmaller single-channel conductanceCFTR polypeptideTransmembrane domainATP bindingRegulatory domainCassette proteinNBD structuresNBD1Binding domains