Featured Publications
A Founder Mutation as a Cause of Cerebral Cavernous Malformation in Hispanic Americans
Günel M, Awad I, Finberg K, Anson J, Steinberg G, Batjer H, Kopitnik T, Morrison L, Giannotta S, Nelson-Williams C, Lifton R. A Founder Mutation as a Cause of Cerebral Cavernous Malformation in Hispanic Americans. New England Journal Of Medicine 1996, 334: 946-951. PMID: 8596595, DOI: 10.1056/nejm199604113341503.Peer-Reviewed Original ResearchConceptsCavernous malformationsCerebral cavernous malformationsSporadic casesFamilial diseaseSame mutationSporadic cavernous malformationsDevelopment of symptomsHispanic AmericansCerebral hemorrhageVascular diseaseAsymptomatic carriersHigh prevalenceClinical casesMalformationsDiseaseFounder mutationPatientsAge dependenceAffected membersKindredsMarkersMexican descentEthnic groupsMutationsSame alleleWhole-exome sequencing identifies recessive WDR62 mutations in severe brain malformations
Bilgüvar K, Öztürk A, Louvi A, Kwan KY, Choi M, Tatlı B, Yalnızoğlu D, Tüysüz B, Çağlayan A, Gökben S, Kaymakçalan H, Barak T, Bakırcıoğlu M, Yasuno K, Ho W, Sanders S, Zhu Y, Yılmaz S, Dinçer A, Johnson MH, Bronen RA, Koçer N, Per H, Mane S, Pamir MN, Yalçınkaya C, Kumandaş S, Topçu M, Özmen M, Šestan N, Lifton RP, State MW, Günel M. Whole-exome sequencing identifies recessive WDR62 mutations in severe brain malformations. Nature 2010, 467: 207-210. PMID: 20729831, PMCID: PMC3129007, DOI: 10.1038/nature09327.Peer-Reviewed Original ResearchConceptsAbnormal cortical developmentWD repeat domain 62 (WDR62) geneSevere brain malformationsWhole-exome sequencingBrain abnormalitiesBrain malformationsCortical developmentMolecular pathogenesisCerebellar hypoplasiaWDR62 mutationsEmbryonic neurogenesisDiagnostic classificationMicrocephaly genesSmall family sizeGenetic heterogeneityWide spectrumRecessive mutationsPachygyriaPathogenesisHypoplasiaNeocortexNeurogenesisAbnormalitiesMalformationsMutationsRecessive 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
2024
CC2D1A causes ciliopathy, intellectual disability, heterotaxy, renal dysplasia, and abnormal CSF flow
Kim A, Sakin I, Viviano S, Tuncel G, Aguilera S, Goles G, Jeffries L, Ji W, Lakhani S, Kose C, Silan F, Oner S, Kaplan O, Group M, Ergoren M, Mishra-Gorur K, Gunel M, Sag S, Temel S, Deniz E. CC2D1A causes ciliopathy, intellectual disability, heterotaxy, renal dysplasia, and abnormal CSF flow. Life Science Alliance 2024, 7: e202402708. PMID: 39168639, PMCID: PMC11339347, DOI: 10.26508/lsa.202402708.Peer-Reviewed Original ResearchConceptsDevelopmental disabilitiesIntellectual disabilityPatient-derived fibroblastsMidbrain regionsBrain developmentDefective ciliogenesisCSF circulationDisabilityCSF flowAbnormal CSF flowNervous system developmentMutant tadpolesCiliated tissuesMultiple model systemsVariant functionPronephric ductUnrelated familiesCC2D1AExpression patternsCiliogenesisRenal dysplasiaLeft-right organizerFunctional analysisDisease mechanismsBrain
2019
Loss of UGP2 in brain leads to a severe epileptic encephalopathy, emphasizing that bi-allelic isoform-specific start-loss mutations of essential genes can cause genetic diseases
Perenthaler E, Nikoncuk A, Yousefi S, Berdowski WM, Alsagob M, Capo I, van der Linde HC, van den Berg P, Jacobs EH, Putar D, Ghazvini M, Aronica E, van IJcken WFJ, de Valk WG, Medici-van den Herik E, van Slegtenhorst M, Brick L, Kozenko M, Kohler JN, Bernstein JA, Monaghan KG, Begtrup A, Torene R, Al Futaisi A, Al Murshedi F, Mani R, Al Azri F, Kamsteeg EJ, Mojarrad M, Eslahi A, Khazaei Z, Darmiyan FM, Doosti M, Karimiani EG, Vandrovcova J, Zafar F, Rana N, Kandaswamy KK, Hertecant J, Bauer P, AlMuhaizea MA, Salih MA, Aldosary M, Almass R, Al-Quait L, Qubbaj W, Coskun S, Alahmadi KO, Hamad MHA, Alwadaee S, Awartani K, Dababo AM, Almohanna F, Colak D, Dehghani M, Mehrjardi MYV, Gunel M, Ercan-Sencicek AG, Passi GR, Cheema HA, Efthymiou S, Houlden H, Bertoli-Avella AM, Brooks AS, Retterer K, Maroofian R, Kaya N, van Ham TJ, Barakat TS. Loss of UGP2 in brain leads to a severe epileptic encephalopathy, emphasizing that bi-allelic isoform-specific start-loss mutations of essential genes can cause genetic diseases. Acta Neuropathologica 2019, 139: 415-442. PMID: 31820119, PMCID: PMC7035241, DOI: 10.1007/s00401-019-02109-6.Peer-Reviewed Original ResearchConceptsUDP-glucose pyrophosphorylase genePluripotent stem cell differentiationGenetic diseasesUnfolded protein responseVisual disturbancesAltered glycogen metabolismPremature neuronal differentiationStem cell differentiationEpileptic encephalopathyUpregulated unfolded protein responseDevelopmental delayEssential genesEssential proteinsTherapy-resistant seizuresDifferentiation defectsMutant animalsStart codonMultiple lineagesProtein responseNeural stem cellsSevere epileptic encephalopathySimilar disease mechanismsSevere developmental delayShort isoformProtein absenceMutations in TFAP2B and previously unimplicated genes of the BMP, Wnt, and Hedgehog pathways in syndromic craniosynostosis
Timberlake AT, Jin SC, Nelson-Williams C, Wu R, Furey CG, Islam B, Haider S, Loring E, Galm A, Steinbacher D, Larysz D, Staffenberg D, Flores R, Rodriguez E, Boggon T, Persing J, Lifton R, Lifton RP, Gunel M, Mane S, Bilguvar K, Gerstein M, Loring E, Nelson-Williams C, Lopez F, Knight J. Mutations in TFAP2B and previously unimplicated genes of the BMP, Wnt, and Hedgehog pathways in syndromic craniosynostosis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 15116-15121. PMID: 31292255, PMCID: PMC6660739, DOI: 10.1073/pnas.1902041116.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAlpha CateninChildChild, PreschoolCraniosynostosesExomeExome SequencingFemaleGene ExpressionGlypicansHistone AcetyltransferasesHumansMaleMutationNuclear ProteinsPedigreeRisk AssessmentSignal TransductionSkullSOXC Transcription FactorsTranscription Factor AP-2Zinc Finger Protein Gli2ConceptsRare damaging mutationsSyndromic craniosynostosisCongenital anomaliesDamaging mutationsSyndromic casesExome sequencingAdditional congenital anomaliesFrequent congenital anomaliesDamaging de novo mutationsNeural crest cell migrationDamaging de novoCrest cell migrationCS patientsMutation burdenChromatin modifiersSubsequent childrenTranscription factorsDe novo mutationsCS casesCS geneHedgehog pathwayDisease locusPremature fusionFunction mutationsCraniosynostosis
2018
Mutations in Chromatin Modifier and Ephrin Signaling Genes in Vein of Galen Malformation
Duran D, Zeng X, Jin SC, Choi J, Nelson-Williams C, Yatsula B, Gaillard J, Furey CG, Lu Q, Timberlake AT, Dong W, Sorscher MA, Loring E, Klein J, Allocco A, Hunt A, Conine S, Karimy JK, Youngblood MW, Zhang J, DiLuna ML, Matouk CC, Mane S, Tikhonova IR, Castaldi C, López-Giráldez F, Knight J, Haider S, Soban M, Alper SL, Komiyama M, Ducruet AF, Zabramski JM, Dardik A, Walcott BP, Stapleton CJ, Aagaard-Kienitz B, Rodesch G, Jackson E, Smith ER, Orbach DB, Berenstein A, Bilguvar K, Vikkula M, Gunel M, Lifton RP, Kahle KT. Mutations in Chromatin Modifier and Ephrin Signaling Genes in Vein of Galen Malformation. Neuron 2018, 101: 429-443.e4. PMID: 30578106, PMCID: PMC10292091, DOI: 10.1016/j.neuron.2018.11.041.Peer-Reviewed Original ResearchConceptsChromatin modifiersVascular developmentSpecification of arteriesDeep venous systemNormal vascular developmentParent-offspring triosSignaling GenesGalen malformationDamaging mutationsGenesMutationsEssential roleArterio-venous malformationsCutaneous vascular abnormalitiesNovo mutationsExome sequencingDisease biologyIncomplete penetranceVariable expressivityVascular abnormalitiesVenous systemMutation carriersArterial bloodMutation burdenClinical implicationsMAB21L1 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 individualsBiallelic loss of human CTNNA2, encoding αN-catenin, leads to ARP2/3 complex overactivity and disordered cortical neuronal migration
Schaffer AE, Breuss MW, Caglayan AO, Al-Sanaa N, Al-Abdulwahed HY, Kaymakçalan H, Yılmaz C, Zaki MS, Rosti RO, Copeland B, Baek ST, Musaev D, Scott EC, Ben-Omran T, Kariminejad A, Kayserili H, Mojahedi F, Kara M, Cai N, Silhavy JL, Elsharif S, Fenercioglu E, Barshop BA, Kara B, Wang R, Stanley V, James KN, Nachnani R, Kalur A, Megahed H, Incecik F, Danda S, Alanay Y, Faqeih E, Melikishvili G, Mansour L, Miller I, Sukhudyan B, Chelly J, Dobyns WB, Bilguvar K, Jamra RA, Gunel M, Gleeson JG. Biallelic loss of human CTNNA2, encoding αN-catenin, leads to ARP2/3 complex overactivity and disordered cortical neuronal migration. Nature Genetics 2018, 50: 1093-1101. PMID: 30013181, PMCID: PMC6072555, DOI: 10.1038/s41588-018-0166-0.Peer-Reviewed Original ResearchConceptsNeuronal migrationHuman cerebral cortexCortical neuronal migrationΒ-catenin signalingCerebral cortexPotential disease mechanismsDevelopmental brain defectsBiallelic truncating mutationsNeuronal phenotypeBiallelic lossBrain defectsBiallelic mutationsTruncating mutationsDisease mechanismsΒ-cateninPachygyriaRecessive formNeurite stabilityNeuronsFamily membersCTNNA2OveractivityPatientsDe Novo Mutation in Genes Regulating Neural Stem Cell Fate in Human Congenital Hydrocephalus
Furey CG, Choi J, Jin SC, Zeng X, Timberlake AT, Nelson-Williams C, Mansuri MS, Lu Q, Duran D, Panchagnula S, Allocco A, Karimy JK, Khanna A, Gaillard JR, DeSpenza T, Antwi P, Loring E, Butler WE, Smith ER, Warf BC, Strahle JM, Limbrick DD, Storm PB, Heuer G, Jackson EM, Iskandar BJ, Johnston JM, Tikhonova I, Castaldi C, López-Giráldez F, Bjornson RD, Knight JR, Bilguvar K, Mane S, Alper SL, Haider S, Guclu B, Bayri Y, Sahin Y, Apuzzo MLJ, Duncan CC, DiLuna ML, Günel M, Lifton RP, Kahle KT. De Novo Mutation in Genes Regulating Neural Stem Cell Fate in Human Congenital Hydrocephalus. Neuron 2018, 99: 302-314.e4. PMID: 29983323, PMCID: PMC7839075, DOI: 10.1016/j.neuron.2018.06.019.Peer-Reviewed Original ResearchConceptsCongenital hydrocephalusNeural stem cell fateHuman congenital hydrocephalusDamaging de novoCerebrospinal fluid homeostasisSubstantial morbidityCH patientsTherapeutic ramificationsSignificant burdenBrain ventriclesCH pathogenesisNeural tube developmentFluid homeostasisDe novo mutationsExome sequencingAdditional probandsHydrocephalusPathogenesisNovo mutationsNovo duplicationProbandsDe novoCell fateMorbidityPatients
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
2016
Impaired Amino Acid Transport at the Blood Brain Barrier Is a Cause of Autism Spectrum Disorder
Tărlungeanu DC, Deliu E, Dotter CP, Kara M, Janiesch PC, Scalise M, Galluccio M, Tesulov M, Morelli E, Sonmez FM, Bilguvar K, Ohgaki R, Kanai Y, Johansen A, Esharif S, Ben-Omran T, Topcu M, Schlessinger A, Indiveri C, Duncan KE, Caglayan AO, Gunel M, Gleeson JG, Novarino G. Impaired Amino Acid Transport at the Blood Brain Barrier Is a Cause of Autism Spectrum Disorder. Cell 2016, 167: 1481-1494.e18. PMID: 27912058, PMCID: PMC5554935, DOI: 10.1016/j.cell.2016.11.013.Peer-Reviewed Original ResearchConceptsBlood-brain barrierBrain barrierBrain amino acid profilesLarge neutral amino acid transporterAutism spectrum disorderAdult mutant miceBranched-chain amino acid (BCAA) catabolic pathwaySevere neurological abnormalitiesNeutral amino acid transporterIntracerebroventricular administrationNeurological syndromeNeurological abnormalitiesNeurological conditionsSpectrum disorderSLC7A5 geneMotor delayAmino acid transportAmino acid transportersMutant miceNormal levelsBrain functionHuman brain functionEndothelial cellsHomozygous mutationCauses of ASDBiallelic 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 phosphokinaseFamilial occurrence of brain arteriovenous malformation: a novel ACVRL1 mutation detected by whole exome sequencing.
Yılmaz B, Toktaş ZO, Akakın A, Işık S, Bilguvar K, Kılıç T, Günel M. Familial occurrence of brain arteriovenous malformation: a novel ACVRL1 mutation detected by whole exome sequencing. Journal Of Neurosurgery 2016, 126: 1879-1883. PMID: 27611203, DOI: 10.3171/2016.6.jns16665.Peer-Reviewed Original ResearchConceptsBrain arteriovenous malformationsHereditary hemorrhagic telangiectasiaWhole-exome sequencingArteriovenous malformationsExome sequencingWhole-exome sequencing analysisSpinal arteriovenous malformationsDiagnostic classification schemesExome sequencing analysisComprehensive genomic characterizationConclusion Study resultsCranial MRIDirect Sanger sequencingHemorrhagic telangiectasiaBlood samplesFamilial occurrenceHeterozygous mutationsACVRL1 mutationsPatientsThree SiblingsFourth siblingVariant segregationSanger sequencingMalformationsSiblingsBiallelic Mutations in Citron Kinase Link Mitotic Cytokinesis to Human Primary Microcephaly
Li H, Bielas SL, Zaki MS, Ismail S, Farfara D, Um K, Rosti RO, Scott EC, Tu S, C. NC, Gabriel S, Erson-Omay EZ, Ercan-Sencicek AG, Yasuno K, Çağlayan AO, Kaymakçalan H, Ekici B, Bilguvar K, Gunel M, Gleeson JG. Biallelic Mutations in Citron Kinase Link Mitotic Cytokinesis to Human Primary Microcephaly. American Journal Of Human Genetics 2016, 99: 501-510. PMID: 27453578, PMCID: PMC4974110, DOI: 10.1016/j.ajhg.2016.07.004.Peer-Reviewed Original ResearchConceptsInduced pluripotent stem cellsPrimary microcephalyHuman primary microcephalyAutosomal recessive primary microcephalyNon-progressive intellectual disabilityAmino acid residuesPluripotent stem cellsMitotic cytokinesisCellular functionsGenome editingCell divisionKinase domainAbnormal cytokinesisCRISPR/Homozygous missense mutationCytokinesisKinase activityMultipolar spindlesNeural progenitorsAcid residuesFunction mutationsMissense mutationsStem cellsMultiple rolesMutations
2014
Homozygous 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 volumeCLP1 Founder Mutation Links tRNA Splicing and Maturation to Cerebellar Development and Neurodegeneration
Schaffer AE, Eggens VR, Caglayan AO, Reuter MS, Scott E, Coufal NG, Silhavy JL, Xue Y, Kayserili H, Yasuno K, Rosti RO, Abdellateef M, Caglar C, Kasher PR, Cazemier JL, Weterman MA, Cantagrel V, Cai N, Zweier C, Altunoglu U, Satkin NB, Aktar F, Tuysuz B, Yalcinkaya C, Caksen H, Bilguvar K, Fu XD, Trotta CR, Gabriel S, Reis A, Gunel M, Baas F, Gleeson JG. CLP1 Founder Mutation Links tRNA Splicing and Maturation to Cerebellar Development and Neurodegeneration. Cell 2014, 157: 651-663. PMID: 24766810, PMCID: PMC4128918, DOI: 10.1016/j.cell.2014.03.049.Peer-Reviewed Original ResearchConceptsPre-tRNA cleavagePolyadenylation factor INull zebrafishTRNA splicingMultifunctional kinaseTRNA maturationMature tRNAEndonuclease complexMutant proteinsKinase activityOxidative stress-induced reductionInduced neuronsNeuronal developmentCell survivalIndependent pedigreesPatient cellsConsanguineous familyCerebellar neurodegenerationTRNACerebellar developmentNeurodegenerative diseasesMaturationNeurodegenerationStress-induced reductionFactor I
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
2010
L-Histidine Decarboxylase and Tourette's Syndrome
Ercan-Sencicek AG, Stillman AA, Ghosh AK, Bilguvar K, O'Roak BJ, Mason CE, Abbott T, Gupta A, King RA, Pauls DL, Tischfield JA, Heiman GA, Singer HS, Gilbert DL, Hoekstra PJ, Morgan TM, Loring E, Yasuno K, Fernandez T, Sanders S, Louvi A, Cho JH, Mane S, Colangelo CM, Biederer T, Lifton RP, Gunel M, State MW. L-Histidine Decarboxylase and Tourette's Syndrome. New England Journal Of Medicine 2010, 362: 1901-1908. PMID: 20445167, PMCID: PMC2894694, DOI: 10.1056/nejmoa0907006.Peer-Reviewed Original ResearchConceptsRare functional mutationsL-histidine decarboxylaseRate-limiting enzymeHDC geneTwo-generation pedigreeFunctional mutationsStrong genetic contributionHistamine biosynthesisAnalysis of linkageGenetic contributionModel systemRisk allelesDevelopmental neuropsychiatric disordersDecarboxylaseBiosynthesisGenesTourette syndromeMutationsAllelesEnzymeInheritanceNeuropsychiatric disordersPedigree