2010
Polycystin-1 Surface Localization Is Stimulated by Polycystin-2 and Cleavage at the G Protein-coupled Receptor Proteolytic Site
Chapin HC, Rajendran V, Caplan MJ. Polycystin-1 Surface Localization Is Stimulated by Polycystin-2 and Cleavage at the G Protein-coupled Receptor Proteolytic Site. Molecular Biology Of The Cell 2010, 21: 4338-4348. PMID: 20980620, PMCID: PMC3002387, DOI: 10.1091/mbc.e10-05-0407.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlotting, WesternCell MembraneCiliaFluorescent Antibody TechniqueHEK293 CellsHumansImmunoprecipitationKidneyLLC-PK1 CellsMutationPolycystic Kidney, Autosomal DominantProtein BindingProtein IsoformsProtein Processing, Post-TranslationalProtein Structure, TertiaryProtein TransportSwineTRPP Cation ChannelsConceptsG-protein-coupled receptor proteolytic siteGPS cleavagePC2 channel activitySurface deliveryChannel activityProteolytic siteSurface localizationPlasma membrane localizationC-terminal tailHuman embryonic kidney 293 cellsEmbryonic kidney 293 cellsPC2 mutationsKidney 293 cellsMembrane localizationSecretory pathwayMembrane proteinsBinding partnerTerminal tailPolycystin-2Effect of PC2Plasma membraneCiliary membraneTRP familyLLC-PK cellsCation channelsStructure of the EF-hand domain of polycystin-2 suggests a mechanism for Ca2+-dependent regulation of polycystin-2 channel activity
Petri ET, Ćelić A, Kennedy SD, Ehrlich BE, Boggon TJ, Hodsdon ME. Structure of the EF-hand domain of polycystin-2 suggests a mechanism for Ca2+-dependent regulation of polycystin-2 channel activity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 9176-9181. PMID: 20439752, PMCID: PMC2889120, DOI: 10.1073/pnas.0912295107.Peer-Reviewed Original ResearchConceptsEF-hand domainPolycystin-2Dependent protein interactionsTerminal cytoplasmic tailSequence conservation analysisPC2 channel activityChannel activityDependent conformational changesMechanism of regulationEF-hand motifsHLH motifHelix motifCytoplasmic tailCoil domainProtein interactionsConservation analysisDependent regulationNMR structureSensitive regulationConformational changesSensitive regulatorFunctional regionsFlexible linkerPermeable channelsPC2 activity
2008
Fibrocystin/Polyductin Modulates Renal Tubular Formation by Regulating Polycystin-2 Expression and Function
Kim I, Fu Y, Hui K, Moeckel G, Mai W, Li C, Liang D, Zhao P, Ma J, Chen XZ, George AL, Coffey RJ, Feng ZP, Wu G. Fibrocystin/Polyductin Modulates Renal Tubular Formation by Regulating Polycystin-2 Expression and Function. Journal Of The American Society Of Nephrology 2008, 19: 455-468. PMID: 18235088, PMCID: PMC2391052, DOI: 10.1681/asn.2007070770.Peer-Reviewed Original ResearchConceptsFibrocystin/polyductinPC2 channel activityRenal cystic phenotypeGene-targeted mutationPolycystic kidney diseaseCultured renal epithelial cellsAutosomal recessive polycystic kidney diseaseHuman autosomal recessive polycystic kidney diseaseCommon molecular pathwaysEpithelial cellsRecessive polycystic kidney diseaseRenal epithelial cellsAberrant ciliogenesisKidney diseasePolycystin-2Polycystin-2 expressionPrimary ciliaCystic phenotypeSingle mutationMolecular pathwaysGenetic modifiersPhenotypic characteristicsMutationsMolecular interactionsAutosomal dominant polycystic kidney disease
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