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Advanced molecular approaches pave the road to a clear-cut diagnosis of hereditary retinal dystrophies.


ABSTRACT: Purpose:The aim of this study was to identify the molecular genetic basis of hereditary retinal dystrophies (HRDs) in five unrelated Iranian families. Methods:Whole exome sequencing and Sanger sequencing were performed in all families. Variants were analyzed using various bioinformatics databases and software. Results:Based on the selected strategies, we identified potentially causative variants in five families with HRDs: the novel homozygous deletion mutation c.586_589delTTTG (p.F196Sfs*56) in the TTC8 gene of family A, the novel homozygous missense mutation c.2389T>C (p.S797P) in the CRB1 gene in family B, the novel homozygous frameshift mutation c.2707dupA (p.S903Kfs*66) in the LRP5 gene in family C, the novel homozygous splice mutation c.584-1G>T in the MERTK gene in family D, and the novel homozygous missense mutation c.1819G>C (p.G607R) rs61749412 in the ABCA4 gene of family E. Conclusions:This study highlights the presence of five novel variants associated with retinal dystrophies in selected Iranian families with hereditary blindness.

SUBMITTER: Ravesh Z 

PROVIDER: S-EPMC6197863 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Advanced molecular approaches pave the road to a clear-cut diagnosis of hereditary retinal dystrophies.

Ravesh Zeinab Z   Dianatpour Mahdi M   Fardaei Majid M   Taghdiri Maryam M   Hashemi-Gorji Feyzollah F   Yassaee Vahid Reza VR   Miryounesi Mohammad M  

Molecular vision 20181019


<h4>Purpose</h4>The aim of this study was to identify the molecular genetic basis of hereditary retinal dystrophies (HRDs) in five unrelated Iranian families.<h4>Methods</h4>Whole exome sequencing and Sanger sequencing were performed in all families. Variants were analyzed using various bioinformatics databases and software.<h4>Results</h4>Based on the selected strategies, we identified potentially causative variants in five families with HRDs: the novel homozygous deletion mutation c.586_589del  ...[more]

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