Usher syndrome type IV: clinically and molecularly confirmed by novel ARSG variants
Citation:
Velde, H.M. and Reurink, J. and Held, S. and Li, C.H.Z. and Yzer, S. and Oostrik, J. and Weeda, J. and Haer-Wigman, L. and Yntema, H.G. and Roosing, S. and Pauleikhoff, L. and Lange, C. and Whelan, L. and Dockery, A. and Zhu, J. and Keegan, D.J. and Farrar, G.J. and Kremer, H. and Lanting, C.P. and Damme, M. and Pennings, R.J.E., Usher syndrome type IV: clinically and molecularly confirmed by novel ARSG variants, Human Genetics, 2022 Feb 28Download Item:
Abstract:
Usher syndrome (USH) is an autosomal recessively inherited disease characterized by sensorineural hearing loss (SNHL) and retinitis pigmentosa (RP) with or without vestibular dysfunction. It is highly heterogeneous both clinically and genetically. Recently, variants in the arylsulfatase G (ARSG) gene have been reported to underlie USH type IV. This distinct type of USH is characterized by late-onset RP with predominantly pericentral and macular changes, and late onset SNHL without vestibular dysfunction. In this study, we describe the USH type IV phenotype in three unrelated subjects. We identified three novel pathogenic variants, two novel likely pathogenic variants, and one previously described pathogenic variant in ARSG. Functional experiments indicated a loss of sulfatase activity of the mutant proteins. Our findings confirm that ARSG variants cause the newly defined USH type IV and support the proposed extension of the phenotypic USH classification
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http://people.tcd.ie/gjfarrar
Author: Farrar, Gwyneth
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Human Genetics;Availability:
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Usher syndrome (USH), autosomal recessively inherited disease, sensorineural hearing loss (SNHL)DOI:
http://dx.doi.org/10.1007/s00439-022-02441-0Metadata
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