A neurodevelopmental disorder with a nonsense mutation in the Ox-2 antigen domain of the amyloid precursor protein (APP) gene

作者: Khue Vu Nguyen , Karen Leydiker , Raymond Wang , Jose Abdenur , William L. Nyhan

DOI: 10.1080/15257770.2016.1267361

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摘要: ABSTRACTWe report a patient, an infant with neurodevelopmental disorder manifesting intractable complex partial epilepsy, bull's eye maculopathy, microcephaly, bilateral cataracts, truncal hypotonia, and spasticity of all four extremities. Sequencing genomic DNA revealed mutations in (a) exon 8 (Ox-2 antigen domain) the amyloid precursor protein (APP) gene: c.1075C>T, p.Arg359* (b) senataxin (SETX) c.4738C>T, p.Arg1580Cys, (c) 2 ceroid-lipofuscinosis, neuronal (CLN8) c.685C>G, p.Pro229Ala. Using quantitative method for measurement various APP-mRNA isoforms, we found that isoform 624 bp deletion starting after 49 bp 5′ end 3 followed by complete exons 4–15, 1: c.22C>T, p.L18F, 3: c.269A>G, p.Q90R encoding APP207 was most abundant one, would appear to be responsible clinical manifestations. This is first example may underline role the...

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