2020
A 49-residue sequence motif in the C terminus of Nav1.9 regulates trafficking of the channel to the plasma membrane
Sizova D, Huang J, Akin E, Estacion M, Gomis-Perez C, Waxman S, Dib-Hajj S. A 49-residue sequence motif in the C terminus of Nav1.9 regulates trafficking of the channel to the plasma membrane. Journal Of Biological Chemistry 2020, 295: 1077-1090. DOI: 10.1016/s0021-9258(17)49917-0.Peer-Reviewed Original ResearchPlasma membraneC-terminusHEK293 cellsHigh-resolution live microscopyC-terminal motifHeterologous expression systemC-terminal chimerasHigh-throughput assaysSequence motifsCytoplasmic faceHeterologous systemsVoltage-gated sodium channel Nav1.9Live microscopyRecombinant expressionExpression systemLong motifsMechanistic basisFunctional expressionFunctional studiesTerminusLow functional expressionMotifChannel chimeraExpression levelsChimeras
2012
Surface Expression and Subunit Specific Control of Steady Protein Levels by the Kv7.2 Helix A-B Linker
Aivar P, Fernández-Orth J, Gomis-Perez C, Alberdi A, Alaimo A, Rodríguez MS, Giraldez T, Miranda P, Areso P, Villarroel A. Surface Expression and Subunit Specific Control of Steady Protein Levels by the Kv7.2 Helix A-B Linker. PLOS ONE 2012, 7: e47263. PMID: 23115641, PMCID: PMC3480381, DOI: 10.1371/journal.pone.0047263.Peer-Reviewed Original ResearchConceptsB linkerPlasma membraneHelix ATetrameric channel assemblyIntracellular C-terminusAmino acid sequenceSteady-state amountsSurface expressionSteady-state levelsProtein degradationAcid sequenceC-terminusChannel assemblyFunctional channelsIntracellular distributionProtein levelsProteinSpecific controlKv7.2Detectable impactM-currentExpressionNeuronal excitabilityMembraneIntrinsic signals