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Mechanisms of insertional mutagenesis in human genes causing genetic disease

Cooper, David Neil and Krawczak, Michael 1991. Mechanisms of insertional mutagenesis in human genes causing genetic disease. Human Genetics 87 (4) , pp. 409-415. 10.1007/BF00197158

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Examples of the insertion of < 10 bp of DNA sequence into human gene-coding regions causing genetic disease were collated in order to study the underlying causative mechanisms. The nature of these insertions was found to be consistent with several mechanisms of mutagenesis including: (1) slipped mispairing mediated by direct repeats or runs of identical bases and (2) the templated misincorporation of bases by secondary-structure intermediates whose formation is facilitated by palindomic (inverted repeat) sequences, quasi-palindromic sequences or symmetric elements. Both the size and position of insertions were found to be non-random and highly dependent upon the surrounding DNA sequence. Inferred mechanisms of insertional mutagenesis thus appear to be very similar to those involved in the causation of gene deletions.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Springer
ISSN: 0340-6717
Last Modified: 04 Jun 2017 06:33

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