2018
Newly synthesized polycystin‐1 takes different trafficking pathways to the apical and ciliary membranes
Gilder AL, Chapin HC, Padovano V, Hueschen CL, Rajendran V, Caplan MJ. Newly synthesized polycystin‐1 takes different trafficking pathways to the apical and ciliary membranes. Traffic 2018, 19: 933-945. PMID: 30125442, PMCID: PMC6237641, DOI: 10.1111/tra.12612.Peer-Reviewed Original ResearchConceptsPolycystin-1Ciliary deliveryBrefeldin AApical deliveryRenal epithelial cellsN-terminal fragmentPolycystin-2LLC-PK1 renal epithelial cellsDifferent trafficking pathwaysTrans-Golgi networkApical membraneEpithelial cellsCultured epithelial cellsTrafficking pathwaysTransmembrane proteinGolgi compartmentPrimary ciliaC-terminal fragmentCiliary membraneC-terminusAutocatalytic cleavageDistinct pathwaysIncubating cellsCell membraneAutosomal dominant polycystic kidney disease
2007
MAL decreases the internalization of the aquaporin-2 water channel
Kamsteeg EJ, Duffield AS, Konings IB, Spencer J, Pagel P, Deen PM, Caplan MJ. MAL decreases the internalization of the aquaporin-2 water channel. Proceedings Of The National Academy Of Sciences Of The United States Of America 2007, 104: 16696-16701. PMID: 17940053, PMCID: PMC2034241, DOI: 10.1073/pnas.0708023104.Peer-Reviewed Original ResearchConceptsAquaporin-2 water channelIntracellular vesiclesApical membrane proteinsMembrane-associated proteinsTrafficking of AQP2Apical surface expressionEpithelial cellsCell surface retentionApical plasma membraneInvolvement of MALBody water homeostasisS256 phosphorylationWater channel proteinsSurface expressionApical deliveryRegulated traffickingSorting eventsRenal epithelial cellsMembrane associationMembrane proteinsPosttranslational modificationsProtein interactionsPlasma membraneChannel proteinsWater channels
2006
An Extracellular Loop of the Human Non-Gastric H,K-ATPase a-subunit is Involved in Apical Plasma Membrane Polarization
Lerner M, Lemke D, Bertram H, Schillers H, Oberleithner H, Caplan MJ, Reinhardt J. An Extracellular Loop of the Human Non-Gastric H,K-ATPase a-subunit is Involved in Apical Plasma Membrane Polarization. Cellular Physiology And Biochemistry 2006, 18: 75-84. PMID: 16914892, DOI: 10.1159/000095169.Peer-Reviewed Original ResearchConceptsP-type ATPasesSorting motifApical deliveryExtracellular loopK-ATPaseSpecific sorting signalsPlasma membrane polarizationShort extracellular loopApical plasma membraneMadin-Darby canine kidney cellsSingle point mutationCanine kidney cellsSorting signalsGene familyPlasma membraneFlanking regionsEpithelial apical membraneK-ATPasesPhysiological roleApical membraneCellular distributionPoint mutationsIon pumpsATP1AL1Corresponding region