A Novel Mutation in the <i>TSEN2</i> Gene Among Two Iranian Families with Pontocerebellar Hypoplasia Type 2B

Simple item page
AuthorAtefeh Khoshnevisanen
AuthorMohammad Shafieien
AuthorJavad Mohammadiaslen
AuthorSeyed Javad Mowlaen
AuthorShahram Nasirien
Issued Date2022-06-30en
AbstractBackground: Pontocerebellar hypoplasia is an autosomal recessive and neurodegenerative disorder divided into sixteen subtypes. Pontocerebellar hypoplasia type 2B (PCH2B) shows microcephaly combined with epilepsy extrapyramidal dyskinesia and chorea due to different homozygous or compound heterozygous pathogenic mutations in the TSEN2 gene. Objectives: This study was aimed to find the mutation responsible for pontocerebellar hypoplasia in two families with similar patients using the next-generation sequencing technique. Methods: Whole exome sequencing (WES) was performed for two individuals in families with microcephaly and developmental delay. A novel mutation was confirmed by Sanger sequencing and segregation analysis. Pathogenicity and the effect of mutation were investigated using different bioinformatics analyses. Results: WES showed a novel and potential pathogenic mutation in TSEN2 (p.R350Q: c.1049G>A). Sanger sequencing verified that both individuals were homozygote and that their parents were heterozygote for this variant. Conclusions: Our data can help enhance knowledge about the role of the TSEN2 gene in pontocerebellar hypoplasia. Also, our results can extend the list of mutations responsible for PCH2B and help find the correlation between the genotypes and phenotypes for this disorder.en
DOIhttps://doi.org/10.5812/jjcmb-129541en
KeywordPontocerebellar Hypoplasiaen
Keyword<i>TSEN2</i>en
KeywordNovel Mutationen
KeywordWhole Exome Sequencingen
PublisherBrieflandsen
TitleA Novel Mutation in the <i>TSEN2</i> Gene Among Two Iranian Families with Pontocerebellar Hypoplasia Type 2Ben
TypeResearch Articleen

Files

Collections

Jentashapir Journal of Cellular and Molecular Biology