biostudies-literatureGerges PHigher Center for Research of the Holy Spirit University of Kaslik (HCR-USEK)National Council for Scientific Research in Lebanon (CNRSL)186https://www.ebi.ac.uk/biostudies/studies/S-EPMC8871811biostudies-literatureUnknown13(2)In our previous study, in which array CGH was used on 19 Lebanese ASD subjects and their parents, we identified rare copy number variants (CNVs) in 14 subjects. The five remaining subjects did not show any CNVs related to autism spectrum disorders (ASD). In the present complementary study, we applied whole-exome sequencing (WES), which allows the identification of rare genetic variations such as single nucleotide variations and small insertions/deletions, to the five negative CNV subjects. After stringent filtering of initial data on the five families, three novel genes potentially related to neurodevelopment were identified, including a <i>de novo</i> mutation in the <i>MIS18BP1</i> gene. In addition, genes already known to be related to ASD contained sequence variations. Our findings outGenesIdentification of Novel Gene Variants for Autism Spectrum Disorders in the Lebanese Population Using Whole-Exome Sequencing.PMC887181190010141S/3541Marouillat SNemer GHleihel WBitar TAndres CRGerges PLaumonnier FfalseIdentification of Novel Gene Variants for Autism Spectrum Disorders in the Lebanese Population Using Whole-Exome Sequencing.In our previous study, in which array CGH was used on 19 Lebanese ASD subjects and their parents, we identified rare copy number variants (CNVs) in 14 subjects. The five remaining subjects did not show any CNVs related to autism spectrum disorders (ASD). In the present complementary study, we applied whole-exome sequencing (WES), which allows the identification of rare genetic variations such as single nucleotide variations and small insertions/deletions, to the five negative CNV subjects. After stringent filtering of initial data on the five families, three novel genes potentially related to neurodevelopment were identified, including a <i>de novo</i> mutation in the <i>MIS18BP1</i> gene. In addition, genes already known to be related to ASD contained sequence variations. Our findings out2022-01-01T00:00:00Z2022 Jan2026-04-08T17:52:29.283Z2025-04-21T17:10:32.461ZS-EPMC88718113520523110.3390/genes13020186