2024
Exploring molecular and cellular mechanisms and phenotypic characteristics of NAGLU Arg234Gly and Asp312Asn variants
Kaymakcalan Celebiler H, Barak T, Rai D, Kaya I, Erbilgin S, Cikili Uytun M, Oztop D, Gumus H, Per H, Ceylaner S, Bozkurt I, Kontaridis M, Bilguvar K, Akhun N, Kilincaslan A, Caglayan A, Erson-Omay E, Gunel M, Ercan-Sencicek A. Exploring molecular and cellular mechanisms and phenotypic characteristics of NAGLU Arg234Gly and Asp312Asn variants. Molecular Syndromology 2024, 1-15. DOI: 10.1159/000542367.Peer-Reviewed Original ResearchWhole-exome sequencingStandard Sanger sequencingMucopolysaccharidosis type IIIBExome sequencingProgressive neurodegenerative disorderConsanguineous familySanger sequencingNAGLU genePhenotypic characteristicsMagnetic resonance imagingEnzymatic assayNeurodegenerative disordersAffected individualsLoss of activityNeurodegenerative symptomsAutosomal recessive lysosomal disorderCellular mechanismsVariantsLysosomal disorderEnzymeNormal MRI findingsSequenceMPS IIIBMRI findingsType IIIB
2022
Mutation spectrum of congenital heart disease in a consanguineous Turkish population
Dong W, Kaymakcalan H, Jin SC, Diab NS, Tanıdır C, Yalcin ASY, Ercan‐Sencicek A, Mane S, Gunel M, Lifton RP, Bilguvar K, Brueckner M. Mutation spectrum of congenital heart disease in a consanguineous Turkish population. Molecular Genetics & Genomic Medicine 2022, 10: e1944. PMID: 35481623, PMCID: PMC9184665, DOI: 10.1002/mgg3.1944.Peer-Reviewed Original ResearchConceptsWhole-exome sequencingLaterality defectsUnique genetic architectureCongenital heart diseaseConsanguineous familyGenetic architectureCausal genesCHD genesGenome analysisHomozygous variantGenetic landscapeGenetic lesionsGenomic alterationsHeart diseaseConsanguineous populationFunction variantsRecessive variantsCHD probandsGenesType of CHDMutation spectrumStructural congenital heart diseaseVariantsCHD subjectsAdditional patients
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
2014
CLP1 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
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 atrophyFamily
2007
Apparently novel genetic syndrome of pachygyria, mental retardation, seizure, and arachnoid cysts
Guzel A, Tatli M, Bilguvar K, DiLuna ML, Bakkaloglu B, Ozturk AK, Bayrakli F, Gunel M. Apparently novel genetic syndrome of pachygyria, mental retardation, seizure, and arachnoid cysts. American Journal Of Medical Genetics Part A 2007, 143A: 672-677. PMID: 17343267, DOI: 10.1002/ajmg.a.31640.Peer-Reviewed Original ResearchConceptsArachnoid cystCerebral anomaliesMental retardationAutosomal recessive inheritanceSeizure disorderNovel genetic syndromeCentrum semiovaleLack of mutationsPerivascular spacesWhite matterNew syndromeGenetic syndromesLissencephaly geneSyndromeCystsRecessive inheritancePachygyriaSeizuresConsanguineous familyRetardationNew phenotypesPatients