All detected point variants were harmonized according to the canonical KDM6A transcript NM_021140.3 using MutationTaster2 (http://www.mutationtaster.org/). InterVar (http://wintervar.wglab.org/) was used to apply the 2015 American College of Medical Genetics and Genomics/Association for Molecular Pathology (ACMG/AMP) guidelines for variant interpretation.19 (link) Protein altering variants (PAVs) were analyzed by the Variant Effect Predictor (http://grch37.ensembl.org/Homo_sapiens/Tools/VEP) to obtain minor allele frequencies (MAFs) in controls, exon location, in silico predictions, previous reports, and evolutionary conservation. Alamut® Visual 2.11 (Interactive Biosoftware, France) and UniProtKB (https://www.uniprot.org/uniprot/O15550) were used for exon-skipping analyses and determining affected domains, respectively. PAVs with decreased in vitro demethylation were obtained from the work of Shpargel et al.20 (link) To analyze copy-number variants (CNVs) encompassing KDM6A, the University of California–Santa Cruz (UCSC) Genome Browser (GRCh37) was used.
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