A novel stop codon mutation of TSPAN12 gene in Chinese patients with familial exudative vitreoretinopathy.

TitleA novel stop codon mutation of TSPAN12 gene in Chinese patients with familial exudative vitreoretinopathy.
Publication TypeJournal Article
Year of Publication2021
AuthorsZou, G, Qi, R, Ma, M, Fu, S, Liang, Q, Bi, X, Wang, C, Hu, X, Cai, Y, Sheng, X
JournalOphthalmic Genet
Pagination1-8
Date Published2021 Nov 05
ISSN1744-5094
Abstract

BACKGROUND: Familial exudative vitreoretinopathy (FEVR) is a group of inherited eye diseases characterized by premature arrest of retinal vessel development. The purpose of our study was to characterize the genetic causes and clinical features in eight Chinese families with FEVR using next-generation sequencing (NGS) technology.

MATERIALS AND METHODS: Eight families with FEVR were included in genetic and clinical analyses. We screened the proband and the parents in eight pedigrees with FEVR using targeted NGS approach and in silico analysis to determine the causative mutation for their family's phenotype.

RESULTS: Four cases (4/8, 50.0%) were confirmed to harbor mutations in known genes, including 3 novel mutations and one previously reported mutation. Among the detected mutations, accounted for 75% (3/4). We identified a novel stop codon of , a heterozygous missense mutation NM_012338.4:c.633T>A, NP_036470.1:p.Tyr211Ter involved in highly conserved residues in the proband. Retrospective analysis of its clinical manifestation showed that the mutant carrier presented mild clinical features.

CONCLUSIONS: We found the novel stop codon mutation p.Tyr211Ter in the , which creates a milder phenotype. Discovery of this novel mutation expands the mutation spectrum of , and would be valuable for future genetic disease diagnosis.

DOI10.1080/13816810.2021.1998555
Alternate JournalOphthalmic Genet
PubMed ID34738848