2017
Contribution of rare inherited and de novo variants in 2,871 congenital heart disease probands
Jin SC, Homsy J, Zaidi S, Lu Q, Morton S, DePalma SR, Zeng X, Qi H, Chang W, Sierant MC, Hung WC, Haider S, Zhang J, Knight J, Bjornson RD, Castaldi C, Tikhonoa IR, Bilguvar K, Mane SM, Sanders SJ, Mital S, Russell MW, Gaynor JW, Deanfield J, Giardini A, Porter GA, Srivastava D, Lo CW, Shen Y, Watkins WS, Yandell M, Yost HJ, Tristani-Firouzi M, Newburger JW, Roberts AE, Kim R, Zhao H, Kaltman JR, Goldmuntz E, Chung WK, Seidman JG, Gelb BD, Seidman CE, Lifton RP, Brueckner M. Contribution of rare inherited and de novo variants in 2,871 congenital heart disease probands. Nature Genetics 2017, 49: 1593-1601. PMID: 28991257, PMCID: PMC5675000, DOI: 10.1038/ng.3970.Peer-Reviewed Original ResearchMeSH KeywordsAdultAutistic DisorderCardiac MyosinsCase-Control StudiesChildExomeFemaleGene ExpressionGenetic Predisposition to DiseaseGenome-Wide Association StudyGrowth Differentiation Factor 1Heart Defects, CongenitalHeterozygoteHigh-Throughput Nucleotide SequencingHomozygoteHumansMaleMutationMyosin Heavy ChainsPedigreeRiskVascular Endothelial Growth Factor Receptor-3ALPK3 gene mutation in a patient with congenital cardiomyopathy and dysmorphic features
Çağlayan AO, Sezer RG, Kaymakçalan H, Ulgen E, Yavuz T, Baranoski JF, Bozaykut A, Harmanci AS, Yalcin Y, Youngblood MW, Yasuno K, Bilgüvar K, Gunel M. ALPK3 gene mutation in a patient with congenital cardiomyopathy and dysmorphic features. Molecular Case Studies 2017, 3: a001859. PMID: 28630369, PMCID: PMC5593152, DOI: 10.1101/mcs.a001859.Peer-Reviewed Original ResearchConceptsNovel homozygous frameshift mutationWk of gestationHomozygous pathogenic variantNovel disease-causing genesPhenotypic featuresHomozygous frameshift mutationWhole-exome sequencingHeterozygous family membersUnrelated consanguineous familiesEchocardiographic examinationDisease groupPrimary cardiomyopathyMale infantHypertrophic cardiomyopathyRoutine diagnostic toolCardiac diseaseCardiac abnormalitiesMale fetusesCardiomyopathyPathogenic variantsGenetic testingDysmorphic featuresGene mutationsPast historyDisease-causing genes
2016
ACOX2 deficiency: A disorder of bile acid synthesis with transaminase elevation, liver fibrosis, ataxia, and cognitive impairment
Vilarinho S, Sari S, Mazzacuva F, Bilgüvar K, Esendagli-Yilmaz G, Jain D, Akyol G, Dalgiç B, Günel M, Clayton PT, Lifton RP. ACOX2 deficiency: A disorder of bile acid synthesis with transaminase elevation, liver fibrosis, ataxia, and cognitive impairment. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: 11289-11293. PMID: 27647924, PMCID: PMC5056113, DOI: 10.1073/pnas.1613228113.Peer-Reviewed Original ResearchConceptsAcyl-CoA oxidase 2Liver fibrosisCognitive impairmentElevated transaminase levelsTreatable inborn errorsBile acid synthesisBile acid intermediatesBile acid biosynthesisTransaminase elevationTransaminase levelsMarked elevationMild ataxiaBile acidsPatient's liverOxidase 2Acyl-CoA oxidaseOld maleBranched chain acyl-CoA oxidaseInborn errorsExome sequencingPremature termination mutationsBranched-chain fatty acidsFibrosisAtaxiaLiverRenal involvement in patients with mucolipidosis IIIalpha/beta: Causal relation or co‐occurrence?
Tüysüz B, Ercan-Sencicek AG, Canpolat N, Koparır A, Yılmaz S, Kılıçaslan I, Gülez B, Bilguvar K, Günel M. Renal involvement in patients with mucolipidosis IIIalpha/beta: Causal relation or co‐occurrence? American Journal Of Medical Genetics Part A 2016, 170: 1187-1195. PMID: 26749367, DOI: 10.1002/ajmg.a.37543.Peer-Reviewed Original ResearchConceptsRenal involvementFlexion contractureNormal renal functionCause of proteinuriaNephrotic range proteinuriaFocal segmental glomerulosclerosisRare lysosomal storage disorderHereditary kidney diseaseGlomerular visceral epithelial cellsNovel homozygous missense mutationVisceral epithelial cellsWhole-exome sequencingLysosomal storage disorderRenal functionBiopsy findingsRenal biopsyKidney diseaseSegmental glomerulosclerosisFamily historyChildhood onsetGNPTAB geneHealthy siblingsHomozygous missense mutationLarge jointsMild short statureA patient with a novel homozygous missense mutation in FTO and concomitant nonsense mutation in CETP
Çağlayan AO, Tüysüz B, Coşkun S, Quon J, Harmancı AS, Baranoski JF, Baran B, Erson-Omay EZ, Henegariu O, Mane SM, Bilgüvar K, Yasuno K, Günel M. A patient with a novel homozygous missense mutation in FTO and concomitant nonsense mutation in CETP. Journal Of Human Genetics 2016, 61: 395-403. PMID: 26740239, PMCID: PMC4880488, DOI: 10.1038/jhg.2015.160.Peer-Reviewed Original ResearchMeSH KeywordsAlpha-Ketoglutarate-Dependent Dioxygenase FTOApoptosisBiopsyChild, PreschoolCholesterol Ester Transfer ProteinsComputational BiologyConsanguinityDNA Copy Number VariationsDNA Mutational AnalysisExomeFemaleGene ExpressionGene Expression ProfilingGenetic Association StudiesGenotypeHigh-Throughput Nucleotide SequencingHomozygoteHumansMutation, MissensePhenotypeTranscriptome
2015
Functional Synergy between Cholecystokinin Receptors CCKAR and CCKBR in Mammalian Brain Development
Nishimura S, Bilgüvar K, Ishigame K, Sestan N, Günel M, Louvi A. Functional Synergy between Cholecystokinin Receptors CCKAR and CCKBR in Mammalian Brain Development. PLOS ONE 2015, 10: e0124295. PMID: 25875176, PMCID: PMC4398320, DOI: 10.1371/journal.pone.0124295.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornBone Morphogenetic Protein 7Cell MovementChemokine CXCL12CholecystokininCorpus CallosumEmbryo, MammalianGene Expression ProfilingGene Expression Regulation, DevelopmentalHomozygoteHumansInterneuronsMiceMice, KnockoutMidline Thalamic NucleiMutationNeocortexNeuropilin-2Receptor, Cholecystokinin AReceptor, Cholecystokinin BReceptors, N-Methyl-D-AspartateSignal TransductionTranscriptomeConceptsCCK receptorsBrain developmentMammalian neocortical developmentCentral nervous systemCortical interneuron migrationHomozygous mutant miceMammalian brain developmentPeripheral organsReceptor lossCorpus callosumCortical developmentPostnatal brainAbundant neuropeptideNervous systemInterneuron migrationMutant miceEmbryonic neocortexNeocortical developmentReceptorsPeptide hormonesG proteinsCholecystokininReciprocal expressionCCKBRBrain
2014
FBXO7–R498X mutation: Phenotypic variability from chorea to early onset parkinsonism within a family
Gündüz A, Eken A, Bilgiç B, Hanagasi HA, Bilgüvar K, Günel M, Başak A, Ertan S. FBXO7–R498X mutation: Phenotypic variability from chorea to early onset parkinsonism within a family. Parkinsonism & Related Disorders 2014, 20: 1253-1256. PMID: 25169713, DOI: 10.1016/j.parkreldis.2014.07.016.Peer-Reviewed Original ResearchConceptsEarly-onset parkinsonismPostural instabilityIndex caseFBXO7 mutationsPallido-pyramidal syndromeTremor-dominant parkinsonismIntrafamilial phenotypic variationDiverse clinical phenotypesMild parkinsonismClinical spectrumSevere apathyAtypical featuresParkinsonismOnset parkinsonismClinical phenotypeConsanguineous parentsMonogenic causesChoreaExomic sequencingSpeech problemsElder sisterGenetic findingsKurdish originPatientsMaternal grandfatherPrimary hypertrophic osteoarthropathy caused by homozygous deletion in HPGD gene in a family: changing clinical and radiological findings with long-term follow-up
Tüysüz B, Yılmaz S, Kasapçopur Ö, Erener-Ercan T, Ceyhun E, Bilguvar K, Günel M. Primary hypertrophic osteoarthropathy caused by homozygous deletion in HPGD gene in a family: changing clinical and radiological findings with long-term follow-up. Rheumatology International 2014, 34: 1539-1544. PMID: 24816859, DOI: 10.1007/s00296-014-3037-8.Peer-Reviewed Original ResearchConceptsRadiological findingsClinical findingsDigital clubbingHPGD geneYears of agePrimary hypertrophic osteoarthropathyMonths of ageHomozygous deletionPainful swellingHypertrophic osteoarthropathyInfantile periodPalmoplantar hyperkeratosisHand radiographsOssification defectsHomozygous mutationIntrafamilial variabilityLate childhoodAgePatientsClubbingMonthsFindingsSiblingsExon 3YearsHomozygous loss of DIAPH1 is a novel cause of microcephaly in humans
Ercan-Sencicek AG, Jambi S, Franjic D, Nishimura S, Li M, El-Fishawy P, Morgan TM, Sanders SJ, Bilguvar K, Suri M, Johnson MH, Gupta AR, Yuksel Z, Mane S, Grigorenko E, Picciotto M, Alberts AS, Gunel M, Šestan N, State MW. Homozygous loss of DIAPH1 is a novel cause of microcephaly in humans. European Journal Of Human Genetics 2014, 23: 165-172. PMID: 24781755, PMCID: PMC4297910, DOI: 10.1038/ejhg.2014.82.Peer-Reviewed Original ResearchConceptsCell divisionFamily-based linkage analysisLinkage analysisRho effector proteinsLinear actin filamentsMaintenance of polarityMitotic cell divisionHigh-throughput sequencingRare genetic variantsHuman neuronal precursor cellsParametric multipoint linkage analysisActivation of GTPNeuronal precursor cellsFormin familyMammalian DiaphanousEffector proteinsMultipoint linkage analysisSpindle formationActin filamentsNonsense alterationWhole-exome sequencingHuman pathologiesNeuroepithelial cellsGenetic variantsHomozygous lossAutosomal recessive spastic tetraplegia caused by AP4M1 and AP4B1 gene mutation: Expansion of the facial and neuroimaging features
Tüysüz B, Bilguvar K, Koçer N, Yalçınkaya C, Çağlayan O, Gül E, Şahin S, Çomu S, Günel M. Autosomal recessive spastic tetraplegia caused by AP4M1 and AP4B1 gene mutation: Expansion of the facial and neuroimaging features. American Journal Of Medical Genetics Part A 2014, 164: 1677-1685. PMID: 24700674, DOI: 10.1002/ajmg.a.36514.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsBrainChildDNA Mutational AnalysisDNA-Binding ProteinsFaciesFemaleGenes, RecessiveGenetic Association StudiesHomozygoteHumansMagnetic Resonance ImagingMaleMutationNeuroimagingPedigreePhenotypeQuadriplegiaRNA-Binding ProteinsSiblingsConceptsAdaptor protein complex 4Tetraplegic cerebral palsySevere intellectual disabilitySpastic tetraplegiaCerebral palsySpastic tetraplegic cerebral palsyIntellectual disabilityStereotypic laughterCranial imaging findingsWhite matter volumeWhole-exome sequencingNovel homozygous mutationAsymmetrical ventriculomegalyCranial MRIImaging findingsClinical findingsNeuroimaging featuresBrain abnormalitiesCommon findingCorpus callosumAutosomal recessive phenotypePairs of siblingsPatientsSimilar facial featuresMatter volume
2013
Spondyloepimetaphyseal dysplasia Pakistani type: Expansion of the phenotype
Tüysüz B, Yılmaz S, Gül E, Kolb L, Bilguvar K, Evliyaoğlu O, Günel M. Spondyloepimetaphyseal dysplasia Pakistani type: Expansion of the phenotype. American Journal Of Medical Genetics Part A 2013, 161: 1300-1308. PMID: 23633440, DOI: 10.1002/ajmg.a.35906.Peer-Reviewed Original ResearchMeSH KeywordsAbnormalities, MultipleAdolescentAdultCalcification, PhysiologicCodon, NonsenseConsanguinityDehydroepiandrosteroneDehydroepiandrosterone SulfateDwarfismFemaleGenotypeGrowth DisordersHomozygoteHumansMaleMultienzyme ComplexesMusculoskeletal AbnormalitiesOsteochondrodysplasiasPedigreePhenotypeRadiographySequence Analysis, DNASulfate AdenylyltransferaseTurkeyConceptsDHEA sulfate levelsShort femoral neckShort halluxFemale patientsInsulin resistanceFemoral neckPlasma levelsIliac boneTestosterone levelsTurkish patientsCoxa varaPatientsVertebral bodyMetaphyseal abnormalitiesShort statureSkeletal dysplasiaEpiphyseal ossificationHyperandrogenismDysplasiaDehydroepiandrosteroneSulfate levelsTurkish familyNonsense mutationPAPSS2AndrostenedioneMutations 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 individualsRecessive 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
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
2010
Novel VLDLR microdeletion identified in two Turkish siblings with pachygyria and pontocerebellar atrophy
Kolb LE, Arlier Z, Yalcinkaya C, Ozturk AK, Moliterno JA, Erturk O, Bayrakli F, Korkmaz B, DiLuna ML, Yasuno K, Bilguvar K, Ozcelik T, Tuysuz B, State MW, Gunel M. Novel VLDLR microdeletion identified in two Turkish siblings with pachygyria and pontocerebellar atrophy. Neurogenetics 2010, 11: 319-325. PMID: 20082205, DOI: 10.1007/s10048-009-0232-y.Peer-Reviewed Original ResearchConceptsCerebellar hypoplasiaMajority of patientsLow-density lipoprotein receptorConstellation of findingsNon-progressive cerebellar ataxiaDensity lipoprotein receptorAutosomal recessive patternHomozygous deletionNeurological sequelaePontocerebellar atrophyDisequilibrium syndromeTurkish familyCerebellar atrophyNovel homozygous deletionLipoprotein receptorCerebellar ataxiaHypoplasiaMotor developmentMotor disabilityTurkish siblingsRecessive patternVLDLR geneCongenital ataxiaHeterogeneous groupSingle nucleotide polymorphisms
2009
The syndrome of pachygyria, mental retardation, and arachnoid cysts maps to 11p15
Bilguvar K, Ozturk AK, Bayrakli F, Guzel A, DiLuna ML, Bayri Y, Tatli M, Tekes S, Arlier Z, Yasuno K, Mason CE, Lifton RP, State MW, Gunel M. The syndrome of pachygyria, mental retardation, and arachnoid cysts maps to 11p15. American Journal Of Medical Genetics Part A 2009, 149A: 2569-2572. PMID: 19876906, DOI: 10.1002/ajmg.a.33063.Peer-Reviewed Original ResearchAbnormalities, MultipleArachnoid CystsBlood Specimen CollectionChromosome MappingChromosomes, Human, Pair 11DNADNA Copy Number VariationsFamilyFemaleGenome, HumanGenome-Wide Association StudyGenotypeHomozygoteHumansIntellectual DisabilityLissencephalyLod ScoreMalePedigreePhenotypePolymorphism, Single NucleotideSyndrome