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 formationTOR2ANucleoporinsLULL1BiogenesisGenomeThe Lamin B receptor is essential for cholesterol synthesis and perturbed by disease-causing mutations
Tsai PL, Zhao C, Turner E, Schlieker C. The Lamin B receptor is essential for cholesterol synthesis and perturbed by disease-causing mutations. ELife 2016, 5: e16011. PMID: 27336722, PMCID: PMC4951196, DOI: 10.7554/elife.16011.Peer-Reviewed Original ResearchConceptsLamin B receptorInner nuclear membraneNuclear membraneHuman lamin B receptorPolytopic membrane proteinsGreenberg skeletal dysplasiaProtein turnover mechanismsHigher eukaryotesDisease-causing mutationsHuman cell linesNuclear laminaMutant proteinsMembrane proteinsMutant derivativesB receptorCholesterol auxotrophyTurnover mechanismsDisease-causing variantsPoint mutationsCholesterol synthesisEnzymatic activityCofactor NADPHFunction mechanismCell linesRapid degradationSite-specific Proteolysis Mobilizes TorsinA from the Membrane of the Endoplasmic Reticulum (ER) in Response to ER Stress and B Cell Stimulation*
Zhao C, Brown RS, Tang CH, Hu CC, Schlieker C. Site-specific Proteolysis Mobilizes TorsinA from the Membrane of the Endoplasmic Reticulum (ER) in Response to ER Stress and B Cell Stimulation*. Journal Of Biological Chemistry 2016, 291: 9469-9481. PMID: 26953341, PMCID: PMC4850287, DOI: 10.1074/jbc.m115.709337.Peer-Reviewed Original ResearchConceptsEndoplasmic reticulumER stressN-terminal hydrophobic domainHydrophobic domainPrimary cellsPharmacological inhibition profileCell-permeable inhibitorProteolytic cleavage eventsMembrane-associated proteasesTorsin ATPasesATPase familyER membraneDistinct organismsGenetic manipulationCysteine residuesNuclear envelopeCleavage eventsCleavage siteOnly representativeTorsinACell linesReticulumCell stimulationProteaseCells
2015
The Torsin Activator LULL1 Is Required for Efficient Growth of Herpes Simplex Virus 1
Turner EM, Brown RS, Laudermilch E, Tsai PL, Schlieker C. The Torsin Activator LULL1 Is Required for Efficient Growth of Herpes Simplex Virus 1. Journal Of Virology 2015, 89: 8444-8452. PMID: 26041288, PMCID: PMC4524217, DOI: 10.1128/jvi.01143-15.Peer-Reviewed Original ResearchConceptsNuclear egressDouble knockout cell linesNuclear envelope dynamicsType II transmembrane proteinHerpes simplex virus 1HSV-1 nuclear egressKnockout cell linesSimplex virus 1Viral protein productionAAA ringGenome engineeringTransmembrane proteinLULL1CRISPR/Virus 1Unexpected roleProtein productionComprehensive geneticPhenotypic analysisHost cellsViral genomeEnvelope dynamicsEfficient growthCell linesHSV-1 production