Library preparation and capture for exome sequencing was performed at the Kinghorn Centre for Clinical Genomics at the Garvan Institute of Medical Research using Agilent SureSelect Clinical Research Exome v2 (Agilent). Sequencing was performed on a HiSeqX (Illumina) to an average depth of coverage of 100× across captured regions. Alignments and variant calls were generated using SoftGenetics NextGene (version 2.4.1, SoftGenetics) to the February 2009 human genome assembly (GRCh37/hg19), and variant calls were restricted to coding regions and the canonical splice sites of an epileptic encephalopathy gene panel. Variants identified were then annotated using Alamut Batch (version 1.9, Interactive Biosoftware) and classified according to the American College of Medical Genetics (ACMG) criteria (Richards et al. 2015 (link)).
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