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Novel mutation c.980_983delATTA compound with c.986C>A mutation of the FRMD7 gene in a Chinese family with X-linked idiopathic congenital nystagmus.


ABSTRACT: OBJECTIVE: To screen mutations in FERM domain-containing protein 7 (FRMD7) gene in two Chinese families with X-linked idiopathic congenital nystagmus (XLICN). METHODS: Common ophthalmic data and peripheral blood of two Chinese XLICN families (families A and B) were collected after informed consent. Genomic DNA was prepared from the peripheral blood of members of the two families and from 100 normal controls. Mutations in the FRMD7 gene were determined by directly sequencing polymerase chain reaction (PCR) products. RESULTS: We identified a novel mutation c.980_983delATTA compound with c.986C>A mutation in the 11th exon of FRMD7 in family B, and a previously reported splicing mutation c.781C>G (p.R261G) [corrected] in family A. The mutations were detected in patients and female carriers, while they were absent in other relatives or in the 100 normal controls. CONCLUSIONS: Our results expand the spectrum of FRMD7 mutations in association with XLICN, and further confirm that the mutations of FRMD7 are the underlying molecular mechanism for XLICN.

SUBMITTER: Song FW 

PROVIDER: S-EPMC3682163 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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Novel mutation c.980_983delATTA compound with c.986C>A mutation of the FRMD7 gene in a Chinese family with X-linked idiopathic congenital nystagmus.

Song Feng-wei FW   Chen Bin-bin BB   Sun Zhao-hui ZH   Wu Li-ping LP   Zhao Su-juan SJ   Miao Qi Q   Tang Xia-jing XJ  

Journal of Zhejiang University. Science. B 20130601 6


<h4>Objective</h4>To screen mutations in FERM domain-containing protein 7 (FRMD7) gene in two Chinese families with X-linked idiopathic congenital nystagmus (XLICN).<h4>Methods</h4>Common ophthalmic data and peripheral blood of two Chinese XLICN families (families A and B) were collected after informed consent. Genomic DNA was prepared from the peripheral blood of members of the two families and from 100 normal controls. Mutations in the FRMD7 gene were determined by directly sequencing polymera  ...[more]

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