0000000000187632

AUTHOR

Fernando Kok

showing 3 related works from this author

Mutation-specific pathophysiological mechanisms define different neurodevelopmental disorders associated with SATB1 dysfunction

2021

AbstractWhereas large-scale statistical analyses can robustly identify disease-gene relationships, they do not accurately capture genotype-phenotype correlations or disease mechanisms. We use multiple lines of independent evidence to show that different variant types in a single gene,SATB1, cause clinically overlapping but distinct neurodevelopmental disorders. Clinical evaluation of 42 individuals carryingSATB1variants identified overt genotype-phenotype relationships, associated with different pathophysiological mechanisms, established by functional assays. Missense variants in the CUT1 and CUT2 DNA-binding domains result in stronger chromatin binding, increased transcriptional repression…

0301 basic medicineMaleModels MolecularMISSENSE MUTATIONSCHROMATINTranscription GeneticCellMedizinDiseaseHaploinsufficiencymedicine.disease_cause0302 clinical medicineMissense mutationde novo variantsGenetics (clinical)INTERLEUKIN-2seizuresGenetics0303 health sciencesMutationChromatin bindingneurodevelopmental disordersMetabolic Disorders Radboud Institute for Molecular Life Sciences [Radboudumc 6]SATB1Phenotypemedicine.anatomical_structureintellectual disabilityFemaleHaploinsufficiencyteeth abnormalitiesProtein BindingNeuroinformaticsEXPRESSIONGENESMutation MissenseBiologyBINDING PROTEINREGION03 medical and health sciencesSATB1Protein DomainsReportGeneticsmedicineHPO-based analysisHumansGenetic Association StudiesHpo-based Analysis ; Satb1 ; Cell-based Functional Assays ; De Novo Variants ; Intellectual Disability ; Neurodevelopmental Disorders ; Seizures ; Teeth Abnormalities030304 developmental biology[SDV.GEN]Life Sciences [q-bio]/GeneticsNeurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]Matrix Attachment Region Binding Proteins030104 developmental biologyNeurodevelopmental DisordersMutationNanomedicine Radboud Institute for Molecular Life Sciences [Radboudumc 19]030217 neurology & neurosurgerycell-based functional assays
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HCN1 mutation spectrum: from neonatal epileptic encephalopathy to benign generalized epilepsy and beyond

2018

International audience; Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels control neuronal excitability and their dysfunction has been linked to epileptogenesis but few individuals with neurological disorders related to variants altering HCN channels have been reported so far. In 2014, we described five individuals with epileptic encephalopathy due to de novo HCN1 variants. To delineate HCN1-related disorders and investigate genotype-phenotype correlations further, we assembled a cohort of 33 unpublished patients with novel pathogenic or likely pathogenic variants: 19 probands carrying 14 different de novo mutations and four families with dominantly inherited variants segre…

0301 basic medicineProbandMaleModels MolecularPotassium Channels[SDV]Life Sciences [q-bio]Medizinmedicine.disease_causeEpileptogenesisMembrane PotentialsEpilepsy0302 clinical medicineHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsMissense mutationChildGeneticsMutationMiddle AgedPhenotype3. Good healthTransmembrane domainclinical spectrum; epilepsy; HCN1; intellectual disability; ion channelintellectual disabilityChild PreschoolEpilepsy GeneralizedFemaleSpasms InfantileAdultAdolescentCHO CellsBiology03 medical and health sciencesYoung AdultCricetulusHCN1medicineAnimalsHumansGeneralized epilepsyGenetic Association StudiesAgedInfantmedicine.diseaseElectric Stimulationclinical spectrum030104 developmental biologyMutationion channelMutagenesis Site-DirectedepilepsyNeurology (clinical)030217 neurology & neurosurgery
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SPEN haploinsufficiency causes a neurodevelopmental disorder overlapping proximal 1p36 deletion syndrome with an episignature of X chromosomes in fem…

2021

Contains fulltext : 231702.pdf (Publisher’s version ) (Closed access) Deletion 1p36 (del1p36) syndrome is the most common human disorder resulting from a terminal autosomal deletion. This condition is molecularly and clinically heterogeneous. Deletions involving two non-overlapping regions, known as the distal (telomeric) and proximal (centromeric) critical regions, are sufficient to cause the majority of the recurrent clinical features, although with different facial features and dysmorphisms. SPEN encodes a transcriptional repressor commonly deleted in proximal del1p36 syndrome and is located centromeric to the proximal 1p36 critical region. Here, we used clinical data from 34 individuals…

0301 basic medicineSHARPMaleobesitygenotype-phenotype correlationsAutism Spectrum DisorderPROTEINChromosome DisordersHaploinsufficiencyRNA-Binding ProteinPHENOTYPE CORRELATIONS1p36; distal 1p36 deletion syndrome; DNA methylome analysis; episignature; genotype-phenotype correlations; neurodevelopmental disorder; obesity; proximal 1p36 deletion syndrome; SPEN; X chromosome; Adolescent; Autism Spectrum Disorder; Child; Child Preschool; Chromosome Deletion; Chromosome Disorders; Chromosomes Human Pair 1; Chromosomes Human X; DNA Methylation; DNA-Binding Proteins; Epigenesis Genetic; Female; Haploinsufficiency; Humans; Intellectual Disability; Male; Neurodevelopmental Disorders; Phenotype; RNA-Binding Proteins; Young AdultEpigenesis GeneticX chromosome0302 clinical medicineNeurodevelopmental disorderNeurodevelopmental DisorderIntellectual disabilityMOLECULAR CHARACTERIZATIONdistal 1p36 deletion syndromeChildGenetics (clinical)X chromosomeGeneticsXDNA methylome analysiRNA-Binding ProteinsSPLIT-ENDSHypotoniaDNA-Binding ProteinsPhenotypeAutism spectrum disorderChromosomes Human Pair 1Child PreschoolDNA methylome analysisMONOSOMY 1P36Pair 1SPENFemalemedicine.symptomChromosome DeletionHaploinsufficiencyRare cancers Radboud Institute for Health Sciences [Radboudumc 9]HumanAdolescentDNA-Binding ProteinBiologygenotype-phenotype correlationChromosomes03 medical and health sciencesYoung AdultGeneticSDG 3 - Good Health and Well-beingReportIntellectual DisabilityREVEALSGeneticsmedicineHumansEpigeneticsPreschoolChromosomes Human XNeurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]1p361p36 deletion syndromeIDENTIFICATIONMUTATIONSproximal 1p36 deletion syndromeDNA Methylationmedicine.diseaseneurodevelopmental disorderGENEepisignature030104 developmental biologyChromosome DisorderNeurodevelopmental Disorders030217 neurology & neurosurgeryEpigenesis
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