Unlabelled: Intoduction: Inherited cataract, opacification of the lens, is the most common worldwide cause of blindness in children. We aimed to identify the genetic cause of autosomal dominant (AD) posterior nuclear cataract in a four generation British family.
Methods: Whole genome sequence (WGS) was performed on two affected and one unaffected individual of the family and further validated by direct sequencing. Haplotype analysis was performed via genotying.
Results: A splice-site mutation c.2826-9G>A in the gene EPHA2, encoding EPH receptor A2 was identified and found to co-segregate with disease.
Conclusions: We have identified a recurrent splice-site mutation c.2826-9G>A in EPHA2 causing isolated posterior nuclear cataract, providing evidence of further phenotypic heterogeneity associated with this variant.
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http://dx.doi.org/10.1080/13816810.2017.1381977 | DOI Listing |
Sci Rep
January 2025
Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, Sfax, Tunisia.
Developmental language disorder (DLD) is a neurodevelopmental disorder involving impaired language abilities. Its genetic etiology is heterogeneous, involving rare variations in multiple susceptibility loci. However, family-based studies on gene mutations are scarce.
View Article and Find Full Text PDFIndian J Med Res
November 2024
Department of Clinical Genetics, Christian Medical College, Vellore, Tamil Nadu, India.
Background & objectives Alkaptonuria (AKU) is an autosomal recessive disease wherein biallelic pathogenic variants in the homogentisate 1,2- dioxygenase (HGD) gene encoding the enzyme homogentisate 1,2 dioxygenase cause high levels of homogentisic acid (HGA) to circulate within the body leading to its deposition in connective tissues and excretion in urine. A homozygous splice donor variant (c.87+1G>A) has been identified to be the founder variant causing alkaptonuria among Narikuravars, a group of gypsies settled in Tamil Nadu.
View Article and Find Full Text PDFMamm Genome
December 2024
Department of Nephrology and Laboratory of Kidney Disease, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), No. 61# Jiefang West Road, Changsha, 410005, Hunan, China.
Exonuclease 1 (EXO1) is an evolutionarily conserved exonuclease, which have function on maintaining genomic stability. Elevated expression of EXO1 has been reported in certain cancers. However, a comprehensive pan-cancer analysis of EXO1 is still lacking and its role in human cancer development remains poorly understood.
View Article and Find Full Text PDFNeurol Genet
February 2025
Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira.
Background And Objectives: Becker muscular dystrophy (BMD) is an allelic disorder of Duchenne muscular dystrophy (DMD) in which pathogenic variants in cause progressive worsening of motor dysfunction, muscle weakness and atrophy, and death due to respiratory and cardiac failure. BMD often has in-frame deletions that preserve the amino acid reading frame, but there are some cases with microvariants or duplications. In recent years, the importance of therapeutic development and care for BMD has been emphasized.
View Article and Find Full Text PDFExp Anim
December 2024
Deafness Project, Department of Basic Medical Sciences, Tokyo Metropolitan Institute of Medical Science.
An unconventional myosin, myosin VI gene (MYO6), contributes to recessive and dominant hearing loss in humans and mice. The Kumamoto shaker/waltzer (ksv) mouse is a model of deafness resulting from a splice-site mutation in Myo6. While ksv/ksv homozygous mice are deaf due to cochlear hair cell stereocilia fusion at the neonatal stage, the hearing phenotypes of ksv/+ heterozygous mice have been less clear.
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