{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:19:26Z","timestamp":1753888766517,"version":"3.41.2"},"reference-count":57,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,8,10]],"date-time":"2024-08-10T00:00:00Z","timestamp":1723248000000},"content-version":"vor","delay-in-days":222,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001411","name":"Indian Council of Medical Research","doi-asserted-by":"publisher","award":["2020-9065\/CMB-BMS"],"award-info":[{"award-number":["2020-9065\/CMB-BMS"]}],"id":[{"id":"10.13039\/501100001411","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Genomics"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> Progressive myoclonus epilepsy (PME) is a neurodegenerative disorder marked by recurrent seizures and progressive myoclonus. To date, based on the phenotypes and causal genes, more than 40 subtypes of PMEs have been identified, and more remain to be characterized. Our study is aimed at identifying the aberrant gene(s) possibly associated with PMEs in two siblings born to asymptomatic parents, in the absence of known genetic mutations.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Clinical assessments and molecular analyses, such as the repeat expansion test for <jats:italic>CSTB<\/jats:italic>; SCA1, 2, 3, 6, and 7; whole exome sequencing (WES); and mitochondrial genome sequencing coupled with computational analysis, were performed.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> A family\u2010based segregation analysis of WES data was performed to identify novel genes associated with PMEs. The potassium channel, <jats:italic>KCNH8<\/jats:italic> [c.298T&gt;C; (p.Tyr100His)], a DNA repair gene, regulator of telomere elongation helicase 1 (<jats:italic>RTEL1<\/jats:italic>) [c.691G&gt;T; (p.Asp231Tyr)] and long noncoding RNA, <jats:italic>RTEL1-TNFRSF6B<\/jats:italic> [chr20:62298898_G&gt;T; NR_037882.1, hg19] were among the candidate genes that were found to be associated with PMEs. These homozygous variations in siblings belong to genes with a loss\u2010of\u2010function intolerant (pLI) score of \u2264\u20090.86, expected to be detrimental by multiple computational analyses, and were heterozygous in parents. Additionally, computational analysis and the expression of <jats:italic>RTEL1<\/jats:italic> and <jats:italic>RTEL1-TNFRSF6B<\/jats:italic> revealed that <jats:italic>RTEL1-TNFRSF6B<\/jats:italic> may modulate <jats:italic>RTEL1<\/jats:italic> via hsa\u2010miR\u20103529\u20103p. In the patient with the severe phenotype, a further deleterious mutation in <jats:italic>SLC22A17<\/jats:italic> was identified. No de novo variants specific to these probands were identified in the mitochondrial genome.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> Our study is the first to report variants in <jats:italic>KCNH8<\/jats:italic>, <jats:italic>RTEL1<\/jats:italic>, and <jats:italic>RTEL1-TNFRSF6B<\/jats:italic> among PME cases. These genes when characterized fully may shed light on pathogenicity and have the potential to be used in the diagnosis of PME.<\/jats:p>","DOI":"10.1155\/2024\/7518528","type":"journal-article","created":{"date-parts":[[2024,8,10]],"date-time":"2024-08-10T20:48:47Z","timestamp":1723322927000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Discovery of a Novel Shared Variant Among <i>RTEL1<\/i> Gene and <i>RTEL1-TNFRSF6B<\/i> lncRNA at Chromosome 20q13.33 in Familial Progressive Myoclonus Epilepsy"],"prefix":"10.1155","volume":"2024","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7830-0407","authenticated-orcid":false,"given":"Sima","family":"Chaudhari","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1316-2933","authenticated-orcid":false,"given":"Lavanya 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