Human mutation · 2013
A homozygous mutation in the TUB gene associated with retinal dystrophy and obesity.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Borman Arundhati Dev, Pearce Laura R, Mackay Donna S, Nagel-Wolfrum Kerstin, Davidson Alice E, Henderson Robert, Garg Sumedha, Waseem Naushin H, Webster Andrew R, Plagnol Vincent, Wolfrum Uwe, Farooqi I Sadaf, Moore Anthony T
Аннотация
Inherited retinal dystrophies are a major cause of childhood blindness. Here, we describe the identification of a homozygous frameshift mutation (c.1194_1195delAG, p.Arg398Serfs*9) in TUB in a child from a consanguineous UK Caucasian family investigated using autozygosity mapping and whole-exome sequencing. The proband presented with obesity, night blindness, decreased visual acuity, and electrophysiological features of a rod cone dystrophy. The mutation was also found in two of the proband's siblings with retinal dystrophy and resulted in mislocalization of the truncated protein. In contrast to known forms of retinal dystrophy, including those caused by mutations in the tubby-like protein TULP-1, loss of function of TUB in the proband and two affected family members was associated with early-onset obesity, consistent with an additional role for TUB in energy homeostasis.