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Published on: August 15, 2019
A FRMD7 variant in a Japanese family causes congenital nystagmus
Tomohiro Kohmoto1, Nana Okamoto2, Shigeko Satomura3
1Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan; Student Lab, Faculty of Medicine, The University of Tokushima, Tokushima, Japan.
Abstract:
Idiopathic congenital nystagmus (ICN) is a genetically heterogeneous eye movement disorder that causes a large proportion of childhood visual impairment. Here we describe a missense variant (p.L292P) within a mutation-rich region of FRMD7 detected in three affected male siblings in a Japanese family with X-linked ICN. Combining sequence analysis and results from structural and functional predictions, we report p.L292P as a variant potentially disrupting FRMD7 function associated with X-linked ICN.
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