Search results for " Rubinstein–Taybi syndrome"

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Expanding the phenotype associated to KMT2A variants: overlapping clinical signs between Wiedemann–Steiner and Rubinstein–Taybi syndromes

2020

Lysine-specific methyltransferase 2A (KMT2A) is responsible for methylation of histone H3 (K4H3me) and contributes to chromatin remodeling, acting as “writer” of the epigenetic machinery. Mutations in KMT2A were first reported in Wiedemann–Steiner syndrome (WDSTS). More recently, KMT2A variants have been described in probands with a specific clinical diagnosis comprised in the so-called chromatinopathies. Such conditions, including WDSTS, are a group of overlapping disorders caused by mutations in genes coding for the epigenetic machinery. Among them, Rubinstein–Taybi syndrome (RSTS) is mainly caused by heterozygous pathogenic variants in CREBBP or EP300. In this work, we used next generati…

AdultMaleRubinstein-Taybi SyndromeAdolescentHistone-Lysine N-MethyltransferaseWiedemann–SteinerArticlePhenotypeSettore MED/03 - Genetica MedicaSettore MED/38 - PEDIATRIA GENERALE E SPECIALISTICAKMT2A variantsMutationHumansFemaleEpigeneticsRubinstein–Taybi syndromesChildKMT2A Gene Wiedemann–Steiner syndrome Rubinstein–Taybi syndromeMyeloid-Lymphoid Leukemia Protein
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Exploring by whole exome sequencing patients with initial diagnosis of Rubinstein-Taybi syndrome: the interconnections of epigenetic machinery disord…

2019

Rubinstein–Taybi syndrome (RSTS) is an autosomal-dominant neurodevelopmental disease affecting 1:125,000 newborns characterized by intellectual disability, growth retardation, facial dysmorphisms and skeletal abnormalities. RSTS is caused by mutations in genes encoding for writers of the epigenetic machinery: CREBBP (~ 60%) or its homologous EP300 (~ 10%). No causative mutation is identified in up to 30% of patients. We performed whole-exome sequencing (WES) on eight RSTS-like individuals who had normal high-resolution array CGH testing and were CREBBP- and EP300-mutation -negative, to identify the molecular cause. In four cases, we identified putatively causal variants in three genes (ASXL…

MaleGenetic Association StudieCompound heterozygosityWhole Exome SequencingArticleEpigenesis Genetic03 medical and health scienceswhole exome sequencing Rubinstein–Taybi syndrome epigenetic mutationsExome SequencingGeneticsmedicineHumansEpigeneticsEP300ChildGenetics (clinical)Exome sequencingGenetic Association Studies030304 developmental biologyGeneticsRubinstein-Taybi Syndrome0303 health sciencesComparative Genomic HybridizationbiologyRubinstein–Taybi syndrome030305 genetics & heredityInfant NewbornFaciesInfantmedicine.diseaseFacieCREB-Binding ProteinHuman geneticsRSTSKMT2APhenotypeChild PreschoolMutationbiology.proteinNeurodegenerative disordersFemaleHaploinsufficiencyE1A-Associated p300 ProteinHumanHuman genetics
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