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Functional analysis of polymorphic variation within the promoter and 5' untranslated region of the neurofibromatosis type 1 (NF1) gene

Horan, M. P., Osborn, M., Cooper, David Neil and Upadhyaya, Meena 2004. Functional analysis of polymorphic variation within the promoter and 5' untranslated region of the neurofibromatosis type 1 (NF1) gene. American Journal of Medical Genetics 131 (3) , pp. 227-231. 10.1002/ajmg.a.30358

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Abstract

The regulatory regions of the neurofibromatosis type 1 (NF1) gene have scarcely been screened either for mutations of potential pathological importance or for functional polymorphisms. To address this question, a 987 bp sequence spanning the promoter and 5' flanking sequence of the human NF1 gene was screened for sequence variants in 570 unrelated NF1 patients and 105 controls. Five novel sequence variants were identified, comprising a 14 bp deletion at -142 within the promoter region, three single nucleotide substitutions in the 5'UTR (C + 247T, C + 261G, G + 462C), and a substitution (C + 514T) at the 5' end of the coding region that served to generate a Stop codon. The latter is likely to be of pathological significance since it is predicted to lead to the synthesis of a truncated protein. The functional significance of three of the other variants (14 bp del, C + 261G, G + 462C) was explored by luciferase reporter gene expression and electrophoretic mobility shift assays. The del14 variant demonstrated allele-specific protein binding without altered reporter gene expression and the G + 462C allele showed slightly decreased reporter gene expression.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
R Medicine > RZ Other systems of medicine
Publisher: Wiley
ISSN: 0148-7299
Last Modified: 04 Jun 2017 06:29
URI: http://orca.cf.ac.uk/id/eprint/60922

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