Delineation of a Phenotype Caused by a <b><i>KAT6B</i></b> Missense Variant Not Resembling Say-Barber-Biesecker-Young-Simpson and Genitopatellar Syndromes
Abstract:Say-Barber-Biesecker-Young-Simpson syndrome (SBBYSS) and genitopatellar syndrome (GPS) are caused by variants of lysine acetyltransferase 6B (KAT6B). These variants tend to occur in the terminal exons of KAT6B. Here, we report a patient with global developmental delay, intellectual disability, autistic behavior, muscular hypotonia, facial dysmorphism, and seizures caused by a novel missense variant in exon 7 of KAT6B. The patient showed a phenotype differing from those of SBBYSS and GPS. We also report patient… Show more
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