2022
Atypical nuclear envelope condensates linked to neurological disorders reveal nucleoporin-directed chaperone activities
Prophet SM, Rampello AJ, Niescier RF, Gentile JE, Mallik S, Koleske AJ, Schlieker C. Atypical nuclear envelope condensates linked to neurological disorders reveal nucleoporin-directed chaperone activities. Nature Cell Biology 2022, 24: 1630-1641. PMID: 36302970, PMCID: PMC10041656, DOI: 10.1038/s41556-022-01001-y.Peer-Reviewed Original Researchp97/UBXD1 Generate Ubiquitylated Proteins That Are Sequestered into Nuclear Envelope Herniations in Torsin-Deficient Cells
Prophet SM, Naughton BS, Schlieker C. p97/UBXD1 Generate Ubiquitylated Proteins That Are Sequestered into Nuclear Envelope Herniations in Torsin-Deficient Cells. International Journal Of Molecular Sciences 2022, 23: 4627. PMID: 35563018, PMCID: PMC9100061, DOI: 10.3390/ijms23094627.Peer-Reviewed Original ResearchConceptsUbiquitylated proteinsNuclear pore complex assemblyPore complex assemblyNuclear envelope herniationsP97-dependent mannerP97 activityFG nucleoporinsComplex assemblyATPase deficiencyFG-NupsHeat shockHallmark phenotypeDYT1 dystoniaProteinAberrant depositionP97Therapeutic developmentDisease modelsUBXD1UbiquitylationBlebsK48UbiquitinHeterodimersUnexplored potential
2020
Lipid and protein dynamics that shape nuclear envelope identity
Bahmanyar S, Schlieker C. Lipid and protein dynamics that shape nuclear envelope identity. Molecular Biology Of The Cell 2020, 31: 1315-1323. PMID: 32530796, PMCID: PMC7353140, DOI: 10.1091/mbc.e18-10-0636.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell CycleHumansLipid BilayersLipid MetabolismMembrane FusionMitosisNuclear EnvelopeConceptsNuclear envelopeEndoplasmic reticulumMembrane fusionNuclear pore complex biogenesisUnique protein compositionBulk endoplasmic reticulumDe novo lipid synthesisNPC biogenesisComplex biogenesisNovo lipid synthesisLipid asymmetryProtein dynamicsProtein compositionElusive mechanismLipid synthesisLipid bilayersBiogenesisPermeability barrierFunctional specializationMajor threatLipid metabolismUnique compositionMitosisReticulumCompartmentalizationTorsin ATPase deficiency leads to defects in nuclear pore biogenesis and sequestration of MLF2
Rampello AJ, Laudermilch E, Vishnoi N, Prophet SM, Shao L, Zhao C, Lusk CP, Schlieker C. Torsin ATPase deficiency leads to defects in nuclear pore biogenesis and sequestration of MLF2. Journal Of Cell Biology 2020, 219: e201910185. PMID: 32342107, PMCID: PMC7265317, DOI: 10.1083/jcb.201910185.Peer-Reviewed Original ResearchConceptsNuclear pore biogenesisMyeloid leukemia factor 2FG nucleoporinsNuclear pore complex biogenesisNuclear envelope herniationsNuclear envelope reformationLive cell imaging platformProteomics-based approachNuclear envelope blebbingComplex biogenesisBleb formationUbiquitin conjugationNuclear envelopeATPase deficiencyBiogenesisHallmark phenotypePhenotypic hallmarksPOM121Factor 2Late markersLuminal componentsNup358CellsUbiquitinBlebbingThe Role of Torsin AAA+ Proteins in Preserving Nuclear Envelope Integrity and Safeguarding Against Disease
Rampello AJ, Prophet SM, Schlieker C. The Role of Torsin AAA+ Proteins in Preserving Nuclear Envelope Integrity and Safeguarding Against Disease. Biomolecules 2020, 10: 468. PMID: 32204310, PMCID: PMC7175109, DOI: 10.3390/biom10030468.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsDystoniaEndoplasmic ReticulumHSC70 Heat-Shock ProteinsHumansMolecular ChaperonesNuclear EnvelopeConceptsNuclear envelopeNuclear pore complex biogenesisEssential cellular processesNormal cellular physiologyNuclear envelope integrityDistinct subcellular localizationEndoplasmic reticulum networkCellular lipid metabolismTorsin ATPasesComplex biogenesisEnvelope integrityRegulatory cofactorsCellular physiologyCellular processesLuminal domainSubcellular localizationConsiderable medical importancePhenotypic consequencesCofactor assemblyTorsinsNE defectsATP hydrolysisReticulum networkDiverse processesPolypeptide 1
2019
An unbiased approach de-livers unexpected insight into torsin biology
Prophet SM, Schlieker C. An unbiased approach de-livers unexpected insight into torsin biology. Journal Of Clinical Investigation 2019, 129: 4576-4579. PMID: 31589164, PMCID: PMC6819095, DOI: 10.1172/jci132442.Peer-Reviewed Original ResearchConceptsFatty liver diseaseHepatic lipid metabolismLiver diseaseNonneural tissuesLipid metabolismBrain functionConditional deletionCongenital disorderDisease etiologySecretion defectHuman pathologiesMammalian liverPolypeptide 1Future investigationsSteatohepatitisUnbiased approachDysfunctionVLDLEtiologyMutationsDiseaseMiceLiverNeuronsPathologyMethodologies to monitor protein turnover at the inner nuclear membrane
Tsai PL, Zhao C, Schlieker C. Methodologies to monitor protein turnover at the inner nuclear membrane. Methods In Enzymology 2019, 619: 47-69. PMID: 30910029, PMCID: PMC6457266, DOI: 10.1016/bs.mie.2018.12.033.Peer-Reviewed Original ResearchConceptsLamin B receptorNuclear envelopeInner nuclear membrane proteinProtein turnoverProtein quality control pathwaysNuclear membrane proteinsQuality control pathwaysProtein turnover machineryHuman congenital disordersInner nuclear membraneSubcellular fractionation methodMammalian nuclear envelopeLive-cell imagingC-terminal truncationsNuclear laminaMembrane proteinsModel substrateBiochemical approachesNuclear compartmentActivity essentialControl pathwaysNuclear membraneRapid turnoverCholesterol biosynthesisCell imaging
2017
Dynamic functional assembly of the Torsin AAA+ ATPase and its modulation by LAP1
Chase AR, Laudermilch E, Wang J, Shigematsu H, Yokoyama T, Schlieker C. Dynamic functional assembly of the Torsin AAA+ ATPase and its modulation by LAP1. Molecular Biology Of The Cell 2017, 28: 2765-2772. PMID: 28814508, PMCID: PMC5638581, DOI: 10.1091/mbc.e17-05-0281.Peer-Reviewed Original Research
2016
Dissecting Torsin/cofactor function at the nuclear envelope: a genetic study
Laudermilch E, Tsai PL, Graham M, Turner E, Zhao C, Schlieker C. Dissecting Torsin/cofactor function at the nuclear envelope: a genetic study. Molecular Biology Of The Cell 2016, 27: 3964-3971. PMID: 27798237, PMCID: PMC5156537, DOI: 10.1091/mbc.e16-07-0511.Peer-Reviewed Original ResearchConceptsTorsin ATPasesNuclear envelopeNuclear pore complex biogenesisComplex biogenesisRegulatory cofactorsValuable experimental platformHuman genomeCRISPR/Observed phenotypeGenetic studiesFunctional linkATPasesCofactor functionElectron microscopy tomographyImmunogold labelingPhenotypic measuresCell linesCofactor systemBleb structuresBleb formationTOR2ANucleoporinsLULL1BiogenesisGenome