Abstract:
:X-linked inheritance is very rare and is estimated to account for only 1-5% of all nonsyndromic hearing loss cases. We found a multiplex family from China segregating with X-linked nonsyndromic hearing loss. After exclusive analysis of 10 common variations of three hearing loss-related genes, GJB2, mtDNA12srRNA and SLC26A4, a novel truncated variant of SMPX, c.87dupA (p.Gly30Argfs*12) (NCBI ClinVar Submission ID: SUB3136126), was identified by whole-exome sequencing. This variant was co-segregated with hearing loss in the entire family and was absent in 576 unrelated ethnically and geographically matched controls. We also detected a single nucleotide variation in two male controls with normal hearing, SMPX c.55A>G (p.Asn19Asp), which has been annotated as a rare variant in the Single Nucleotide Polymorphism (dbSNP) (rs759552778) and Exome Aggregation Consortium (ExAC) databases. This study has enriched the mutation spectrum of the SMPX gene.
journal_name
J Hum Genetjournal_title
Journal of human geneticsauthors
Deng Y,Niu Z,Fan L,Ling J,Chen H,Cai X,Mei L,He C,Zhang X,Wen J,Li M,Li W,Li T,Sang S,Liu Y,Feng Ydoi
10.1038/s10038-018-0443-xsubject
Has Abstractpub_date
2018-06-01 00:00:00pages
723-730issue
6eissn
1434-5161issn
1435-232Xpii
10.1038/s10038-018-0443-xjournal_volume
63pub_type
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