Featured Publications
Mutations in KATNB1 Cause Complex Cerebral Malformations by Disrupting Asymmetrically Dividing Neural Progenitors
Mishra-Gorur K, Çağlayan AO, Schaffer AE, Chabu C, Henegariu O, Vonhoff F, Akgümüş GT, Nishimura S, Han W, Tu S, Baran B, Gümüş H, Dilber C, Zaki MS, Hossni HA, Rivière JB, Kayserili H, Spencer EG, Rosti RÖ, Schroth J, Per H, Çağlar C, Çağlar Ç, Dölen D, Baranoski JF, Kumandaş S, Minja FJ, Erson-Omay EZ, Mane SM, Lifton RP, Xu T, Keshishian H, Dobyns WB, C. N, Šestan N, Louvi A, Bilgüvar K, Yasuno K, Gleeson JG, Günel M. Mutations in KATNB1 Cause Complex Cerebral Malformations by Disrupting Asymmetrically Dividing Neural Progenitors. Neuron 2014, 84: 1226-1239. PMID: 25521378, PMCID: PMC5024344, DOI: 10.1016/j.neuron.2014.12.014.Peer-Reviewed Original ResearchConceptsComplex cerebral malformationsCerebral cortical malformationsMicrotubule-severing enzyme kataninExome sequencing analysisMitotic spindle formationDrosophila optic lobeCerebral malformationsPatient-derived fibroblastsCell cycle progression delayCortical malformationsMotor neuronsComplex malformationsMicrotubule-associated proteinsCortical developmentReduced cell numberOptic lobeRegulatory subunitBrain developmentCatalytic subunitDeleterious mutationsSpindle formationSupernumerary centrosomesArborization defectsMalformationsHuman phenotypes
2017
Disruptions in asymmetric centrosome inheritance and WDR62-Aurora kinase B interactions in primary microcephaly
Sgourdou P, Mishra-Gorur K, Saotome I, Henagariu O, Tuysuz B, Campos C, Ishigame K, Giannikou K, Quon JL, Sestan N, Caglayan AO, Gunel M, Louvi A. Disruptions in asymmetric centrosome inheritance and WDR62-Aurora kinase B interactions in primary microcephaly. Scientific Reports 2017, 7: 43708. PMID: 28272472, PMCID: PMC5341122, DOI: 10.1038/srep43708.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAurora Kinase BBrainCell CycleCell Cycle ProteinsCell DifferentiationCell ProliferationCentrosomeConsanguinityDisease Models, AnimalEpistasis, GeneticFluorescent Antibody TechniqueGene ExpressionHumansInheritance PatternsMaleMiceMice, KnockoutMicrocephalyMutationNerve Tissue ProteinsNeural Stem CellsPedigreeWhole Genome SequencingConceptsChromosome passenger complexPatient-derived fibroblastsCentrosome inheritanceNeocortical progenitorsDisease-associated mutant formsSpindle pole localizationAurora kinase BPassenger complexMitotic progressionMouse orthologDiverse functionsMutant formsWD repeat domain 62Key regulatorCPC componentsKinase BPole localizationPrimary microcephalyLate neurogenesisRecessive mutationsNeuronal differentiationWDR62Severe brain malformationsReduced proliferationNeocortical development
2015
A congenital disorder of deglycosylation: Biochemical characterization of N-glycanase 1 deficiency in patient fibroblasts
He P, Grotzke JE, Ng BG, Gunel M, Jafar-Nejad H, Cresswell P, Enns GM, Freeze HH. A congenital disorder of deglycosylation: Biochemical characterization of N-glycanase 1 deficiency in patient fibroblasts. Glycobiology 2015, 25: 836-844. PMID: 25900930, PMCID: PMC4487302, DOI: 10.1093/glycob/cwv024.Peer-Reviewed Original ResearchMeSH KeywordsBacterial ProteinsDevelopmental DisabilitiesEnzyme AssaysExonsEye Diseases, HereditaryFibroblastsGene ExpressionGenes, ReporterHepatic InsufficiencyHumansLacrimal Apparatus DiseasesLuminescent ProteinsMutationPeptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine AmidasePeripheral Nervous System DiseasesPrimary Cell CultureSeizuresConceptsAbnormal liver functionPatient fibroblastsPeripheral neuropathyLiver functionPatient-derived fibroblastsDevelopmental delayCongenital disorderN-glycanase 1 (NGLY1) deficiencyVenus fluorescencePronounced reductionFibroblastsN-glycanase 1Enzymatic activityMutationsNGLY1NeuropathyPatientsSeizuresAlacrimaActivity
2014
A congenital disorder of deglycosylation: biochemical characterization of N‐glycanase 1 deficiency in patient fibroblasts (607.3)
He P, Ng B, Cresswell P, Grotzke J, Gunel M, Jafar‐Nejad H, Kodali V, Kaufman R, Freeze H. A congenital disorder of deglycosylation: biochemical characterization of N‐glycanase 1 deficiency in patient fibroblasts (607.3). The FASEB Journal 2014, 28 DOI: 10.1096/fasebj.28.1_supplement.607.3.Peer-Reviewed Original ResearchN-glycanase 1 (NGLY1) deficiencyN-glycanase 1Patient fibroblastsMisfolded glycoproteinsER stressPatient-derived fibroblastsFree oligosaccharidesSignal transductionProteasomal degradationBiochemical characterizationNGLY1Enzymatic activitySubstrate accumulationExome sequencingPhysiological conditionsDeglycosylationFibroblastsAbnormal liver functionGlycoproteinMutationsCongenital disorderPeripheral neuropathyLiver functionAltered size distributionTransduction