2008
The Cytoplasmic Tail Dileucine Motif LL572 Determines the Glycosylation Pattern of Membrane-type 1 Matrix Metalloproteinase*
Ludwig T, Theissen SM, Morton MJ, Caplan MJ. The Cytoplasmic Tail Dileucine Motif LL572 Determines the Glycosylation Pattern of Membrane-type 1 Matrix Metalloproteinase*. Journal Of Biological Chemistry 2008, 283: 35410-35418. PMID: 18955496, PMCID: PMC2602891, DOI: 10.1074/jbc.m801816200.Peer-Reviewed Original ResearchConceptsMT1-MMPMT1-MMP traffickingSite-directed mutagenesis studiesCell surface traffickingMembrane type 1 matrix metalloproteinasePost-translational processingCytoplasmic tailMolecular charactersMutagenesis studiesSurface traffickingMetabolic labelingSubstrate spectrumMatrix metalloproteinaseEnzymatic deglycosylationGlycosylation patternsProfound physiological effectsHinge regionTraffickingPathological processesProteinLectin precipitationPost-synthetic pathwayPhysiological effectsMajor effectBroad spectrum
1998
Conformational alterations resulting from mutations in cytoplasmic domains of the alpha subunit of the Na,K-ATPase.
Blostein R, Daly SE, Boxenbaum N, Lane LK, Arguello JM, Lingrel JB, Karlish SJ, Caplan MJ, Dunbar L. Conformational alterations resulting from mutations in cytoplasmic domains of the alpha subunit of the Na,K-ATPase. Acta Physiologica Scandinavica. Supplementum 1998, 643: 275-81. PMID: 9789570.Peer-Reviewed Original ResearchConceptsM2-M3 loopCytoplasmic domainCytoplasmic loopK-ATPaseN-terminusStructure/function analysisTransmembrane segment M2Amino-terminal halfMajor cytoplasmic loopFifth transmembrane segmentFirst cytoplasmic loopCatalytic phosphorylation siteMajor conformational statesLow catalytic turnoverPutative cationCytoplasmic mutantsTransmembrane segmentsPhosphorylation sitesTransmembrane domainAlpha 1 subunitSegment M2Cytoplasmic regionApparent affinityAmino terminusTerminal half
1996
Functional expression of the cDNA encoded by the human ATP1AL1 gene
Grishin AV, Bevensee MO, Modyanov NN, Rajendran V, Boron WF, Caplan MJ. Functional expression of the cDNA encoded by the human ATP1AL1 gene. American Journal Of Physiology 1996, 271: f539-f551. PMID: 8853415, DOI: 10.1152/ajprenal.1996.271.3.f539.Peer-Reviewed Original ResearchConceptsHuman ATP1AL1 geneAcute loweringNH4Cl pulseUptake activityHEK-293 cellsSpontaneous intracellularMM ouabainProtein expressionCOS cellsATP1AL1Polyclonal antibodiesPH-sensitive dyeOuabainBeta-subunit cDNAExtrusion activityCellsK-ATPaseTransfection studiesSame cellsFunctional expressionBeta complexExpressionDependent ATPaseEndplasmic reticulumProtein
1993
Aldosterone-mediated Na/K-ATPase expression is alpha 1 isoform specific in the renal cortical collecting duct.
Welling PA, Caplan M, Sutters M, Giebisch G. Aldosterone-mediated Na/K-ATPase expression is alpha 1 isoform specific in the renal cortical collecting duct. Journal Of Biological Chemistry 1993, 268: 23469-23476. PMID: 8226873, DOI: 10.1016/s0021-9258(19)49486-6.Peer-Reviewed Original ResearchConceptsAlpha 1 formWestern blot analysisMineralocorticoid hormonesAlpha 1 isoformK-ATPase expressionAldosteroneAlpha-subunit isoformsK-ATPase moleculesNa/K-ATPase expressionK-ATPase catalytic subunitPump activityBlot analysisElectrophysiological assaysAlpha isoformAntipeptide antibodiesAttractive hypothesisDifferential regulationIsoform switchSubunit isoformsDuctNa/KIsoformsSodium affinityMolecular basis
1992
Isoforms of the Na,K-ATPase are present in both axons and dendrites of hippocampal neurons in culture.
Pietrini G, Matteoli M, Banker G, Caplan MJ. Isoforms of the Na,K-ATPase are present in both axons and dendrites of hippocampal neurons in culture. Proceedings Of The National Academy Of Sciences Of The United States Of America 1992, 89: 8414-8418. PMID: 1326755, PMCID: PMC49930, DOI: 10.1073/pnas.89.18.8414.Peer-Reviewed Original ResearchConceptsHippocampal neuronsAlpha 1Epithelial cellsMature cultured hippocampal neuronsCultured hippocampal neuronsK-ATPase alpha subunitPolarized epithelial cell lineAlpha 3 proteinAlpha 3 isoformDistribution of isoformsEpithelial cell lineRenal epithelial cellsInfluenza glycoproteinsVesicular stomatitis virusNeuronal cellsNeuronsAlpha subunitCell linesStable transfectionStomatitis virusAxonsK-ATPaseIsoformsCellsDendrites