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  • Title: A novel mutation in the CLN1 gene in a patient with juvenile neuronal ceroid lipofuscinosis.
    Author: Mazzei R, Conforti FL, Magariello A, Bravaccio C, Militerni R, Gabriele AL, Sampaolo S, Patitucci A, Di Iorio G, Muglia M, Quattrone A.
    Journal: J Neurol; 2002 Oct; 249(10):1398-400. PubMed ID: 12382155.
    Abstract:
    We describe the clinical, neuropathological and molecular findings from a patient affected with neuronal ceroid lipofuscinosis with a juvenile onset (JNCL). She was a 9-year-old right-handed girl with a normal birth and early developmental milestones. At the age of 4 the early symptoms began. Skin biopsy showed granular osmiophilic deposits (GRODs). Because JNCL with GRODs is caused by mutations in the CNL1 gene, we performed a molecular investigation by direct sequencing of nine exons of the CNL1 gene. This analysis revealed a novel mutation in homozygous form in the exon 7 that caused an aminoacid substitution at codon 222 (Leu --> Pro). Direct sequencing of the exon 7 in both parents showed the same substitution in heterozygous form.
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