Featured Publications
Recessive loss of function of the neuronal ubiquitin hydrolase UCHL1 leads to early-onset progressive neurodegeneration
Bilguvar K, Tyagi NK, Ozkara C, Tuysuz B, Bakircioglu M, Choi M, Delil S, Caglayan AO, Baranoski JF, Erturk O, Yalcinkaya C, Karacorlu M, Dincer A, Johnson MH, Mane S, Chandra SS, Louvi A, Boggon TJ, Lifton RP, Horwich AL, Gunel M. Recessive loss of function of the neuronal ubiquitin hydrolase UCHL1 leads to early-onset progressive neurodegeneration. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: 3489-3494. PMID: 23359680, PMCID: PMC3587195, DOI: 10.1073/pnas.1222732110.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge of OnsetAmino Acid SequenceBase SequenceChild, PreschoolExomeFemaleGenes, RecessiveHomozygoteHumansHydrolysisMaleModels, MolecularMolecular Sequence DataMutation, MissenseNerve DegenerationNeuronsPedigreeProtein BindingSequence Analysis, DNASubstrate SpecificitySyndromeThermodynamicsUbiquitinUbiquitin ThiolesteraseConceptsUbiquitin C-terminal hydrolase L1Upper motor neuron dysfunctionMotor neuron dysfunctionProgressive neurodegenerative syndromeEarly-onset progressive neurodegenerationChildhood-onset blindnessWhole-exome sequencingNeuron dysfunctionHomozygous missense mutationIndex caseNervous systemProgressive neurodegenerationNeurodegenerative syndromeCerebellar ataxiaHydrolase activityNear complete lossComplete lossAffected individualsConsanguineous unionsMissense mutationsRecessive lossHomozygosity mappingProper positioningReduced affinitySpasticity
2018
MAB21L1 loss of function causes a syndromic neurodevelopmental disorder with distinctive cerebellar, ocular, craniofacial and genital features (COFG syndrome)
Rad A, Altunoglu U, Miller R, Maroofian R, James KN, Çağlayan AO, Najafi M, Stanley V, Boustany RM, Yeşil G, Sahebzamani A, Ercan-Sencicek G, Saeidi K, Wu K, Bauer P, Bakey Z, Gleeson JG, Hauser N, Gunel M, Kayserili H, Schmidts M. MAB21L1 loss of function causes a syndromic neurodevelopmental disorder with distinctive cerebellar, ocular, craniofacial and genital features (COFG syndrome). Journal Of Medical Genetics 2018, 56: 332. PMID: 30487245, PMCID: PMC6581149, DOI: 10.1136/jmedgenet-2018-105623.Peer-Reviewed Original ResearchMeSH KeywordsAbnormalities, MultipleBrainChildChild, PreschoolConsanguinityExome SequencingFaciesFemaleGenetic Association StudiesGenetic Predisposition to DiseaseHomeodomain ProteinsHomozygoteHumansInfantLoss of Function MutationMagnetic Resonance ImagingMaleModels, MolecularNeurodevelopmental DisordersPedigreePhenotypePolymorphism, Single NucleotideProtein ConformationSyndromeConceptsScrotal agenesisCerebellar hypoplasiaCharacteristic facial gestaltHomozygous truncating variantConsanguineous familyUnrelated consanguineous familiesOphthalmological anomaliesSyndromic neurodevelopmental disorderCardinal featuresCerebello-oculoCorneal dystrophyLabioscrotal foldsTruncating variantsFunction variantsFacial gestaltExome sequencingSyndromeSimilar phenotypic featuresGenetic causeFacial dysmorphismNeurodevelopmental disordersMissense variantsVariable microcephalyNeurodevelopmental syndromeAffected individuals
2016
Biallelic Mutations in TMTC3, Encoding a Transmembrane and TPR-Containing Protein, Lead to Cobblestone Lissencephaly
Jerber J, Zaki MS, Al-Aama JY, Rosti RO, Ben-Omran T, Dikoglu E, Silhavy JL, Caglar C, Musaev D, Albrecht B, Campbell KP, Willer T, Almuriekhi M, Çağlayan A, Vajsar J, Bilgüvar K, Ogur G, Jamra R, Günel M, Gleeson JG. Biallelic Mutations in TMTC3, Encoding a Transmembrane and TPR-Containing Protein, Lead to Cobblestone Lissencephaly. American Journal Of Human Genetics 2016, 99: 1181-1189. PMID: 27773428, PMCID: PMC5097947, DOI: 10.1016/j.ajhg.2016.09.007.Peer-Reviewed Original ResearchConceptsCongenital muscular dystrophyCobblestone lissencephalyOvermigration of neuronsBiallelic mutationsMuscular dystrophyTMTC3Affected individualsWalker-Warburg syndromeMembrane componentsSevere brain malformationsBasement membrane componentsFukuyama congenital muscular dystrophyMuscle creatine phosphokinaseEye defectsMutationsGenesRecessive formGenetic disordersGlial cellsMinimal eyeMuscle involvementCortical dysplasiaBrain malformationsEye anomaliesCreatine phosphokinase
2013
Mutations in CSPP1 Lead to Classical Joubert Syndrome
Akizu N, Silhavy JL, Rosti RO, Scott E, Fenstermaker AG, Schroth J, Zaki MS, Sanchez H, Gupta N, Kabra M, Kara M, Ben-Omran T, Rosti B, Guemez-Gamboa A, Spencer E, Pan R, Cai N, Abdellateef M, Gabriel S, Halbritter J, Hildebrandt F, van Bokhoven H, Gunel M, Gleeson JG. Mutations in CSPP1 Lead to Classical Joubert Syndrome. American Journal Of Human Genetics 2013, 94: 80-86. PMID: 24360807, PMCID: PMC3882909, DOI: 10.1016/j.ajhg.2013.11.015.Peer-Reviewed Original ResearchConceptsJoubert syndromeDistinctive mid-hindbrain malformationMid-hindbrain malformationPrimary cilia dysfunctionPrimary ciliaKidney diseaseLarge cohortVariable involvementRelated disordersHuman neurogenesisNeural tissueProtein levelsAffected individualsSyndromeCilia dysfunctionCohortNeural-specific functionsCausative mutationsMutationsNull mutationCSPP1IndividualsCiliaDysfunctionJSRDMutations in LAMB1 Cause Cobblestone Brain Malformation without Muscular or Ocular Abnormalities
Radmanesh F, Caglayan AO, Silhavy JL, Yilmaz C, Cantagrel V, Omar T, Rosti B, Kaymakcalan H, Gabriel S, Li M, Šestan N, Bilguvar K, Dobyns WB, Zaki MS, Gunel M, Gleeson JG. Mutations in LAMB1 Cause Cobblestone Brain Malformation without Muscular or Ocular Abnormalities. American Journal Of Human Genetics 2013, 92: 468-474. PMID: 23472759, PMCID: PMC3591846, DOI: 10.1016/j.ajhg.2013.02.005.Peer-Reviewed Original ResearchConceptsBrain malformationsCongenital muscular dystrophyOcular abnormalitiesPial surfaceWhite matter signal abnormalitiesNeuronal migration disordersRadial glial cellsPial basement membraneLaminin subunit beta-1Brainstem hypoplasiaFirst cortical layerSignal abnormalitiesCerebellar dysplasiaGlial cellsMigration disordersMuscular abnormalitiesOccipital encephaloceleCortical layersBrain diseasesAbnormalitiesHomozygous deleterious mutationMalformationsBeta 1Muscular dystrophyAffected individuals
2012
Missense mutation in the ATPase, aminophospholipid transporter protein ATP8A2 is associated with cerebellar atrophy and quadrupedal locomotion
Emre Onat O, Gulsuner S, Bilguvar K, Nazli Basak A, Topaloglu H, Tan M, Tan U, Gunel M, Ozcelik T. Missense mutation in the ATPase, aminophospholipid transporter protein ATP8A2 is associated with cerebellar atrophy and quadrupedal locomotion. European Journal Of Human Genetics 2012, 21: 281-285. PMID: 22892528, PMCID: PMC3573203, DOI: 10.1038/ejhg.2012.170.Peer-Reviewed Original ResearchConceptsC-terminal transmembrane regionATPase domainNext-generation sequencingTransmembrane regionHomozygous regionsHomozygosity mappingAffected individualsATP8A2Novel missense variantChromosome 13q12Missense mutationsATP8A2 geneSegregation analysisConsanguineous familyMissense variantsUnrelated individualsMutationsMental retardationQuadrupedal locomotionGenesDysequilibrium syndromeSequencingTranslocationATPaseNovo
2011
Homozygosity mapping and targeted genomic sequencing reveal the gene responsible for cerebellar hypoplasia and quadrupedal locomotion in a consanguineous kindred
Gulsuner S, Tekinay AB, Doerschner K, Boyaci H, Bilguvar K, Unal H, Ors A, Onat OE, Atalar E, Basak AN, Topaloglu H, Kansu T, Tan M, Tan U, Gunel M, Ozcelik T. Homozygosity mapping and targeted genomic sequencing reveal the gene responsible for cerebellar hypoplasia and quadrupedal locomotion in a consanguineous kindred. Genome Research 2011, 21: 1995-2003. PMID: 21885617, PMCID: PMC3227090, DOI: 10.1101/gr.126110.111.Peer-Reviewed Original ResearchConceptsBeta-propeller domainPrivate missense mutationsLarge consanguineous familyThird geneBEACH domainTransmembrane proteinHomozygous regionsHomozygosity mappingGenomic sequencingWDR81Chromosome 17p13.1Missense mutationsQuadrupedal locomotionConsanguineous familyTargeted sequencingGenesSequencingRare phenotypeMorphological abnormalitiesBiological basisMutationsAffected individualsCell layerParticular atrophyFamilyThe Essential Role of Centrosomal NDE1 in Human Cerebral Cortex Neurogenesis
Bakircioglu M, Carvalho OP, Khurshid M, Cox JJ, Tuysuz B, Barak T, Yilmaz S, Caglayan O, Dincer A, Nicholas AK, Quarrell O, Springell K, Karbani G, Malik S, Gannon C, Sheridan E, Crosier M, Lisgo SN, Lindsay S, Bilguvar K, Gergely F, Gunel M, Woods CG. The Essential Role of Centrosomal NDE1 in Human Cerebral Cortex Neurogenesis. American Journal Of Human Genetics 2011, 88: 523-535. PMID: 21529752, PMCID: PMC3146716, DOI: 10.1016/j.ajhg.2011.03.019.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell Cycle ProteinsCentrosomeCerebral CortexChild, PreschoolDNA Mutational AnalysisEpithelial CellsExonsFemaleGenetic LinkageHeLa CellsHomozygoteHumansInfantMaleMiceMicrocephalyMicrotubule-Associated ProteinsMutationNeural Stem CellsNeurogenesisNeuronsPhenotypePregnancyRNA, MessengerTransfectionConceptsCortical laminationPatient-derived cell linesDistinct homozygous mutationsProfound mental retardationCerebral cortexCerebral cortex neurogenesisMouse embryonic brainNeuron productionBrain scansPostmortem dataEmbryonic brainNeural precursorsHomozygous mutationNeuroepithelial cellsNeurogenesisPatient cellsMental retardationExtreme microcephalyAffected individualsEarly neurogenesisCell linesT mutationPakistani originBrainTurkish family