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A systematic analysis of disease-associated variants in the 3′ regulatory regions of human protein-coding genes II: the importance of mRNA secondary structure in assessing the functionality of 3′ UTR variants

Chen, Jian-Min, Férec, Claude and Cooper, David Neil 2006. A systematic analysis of disease-associated variants in the 3′ regulatory regions of human protein-coding genes II: the importance of mRNA secondary structure in assessing the functionality of 3′ UTR variants. Human Genetics 120 (3) , pp. 301-333. 10.1007/s00439-006-0218-x

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Abstract

In an attempt both to catalogue 3′ regulatory region (3′ RR)-mediated disease and to improve our understanding of the structure and function of the 3′ RR, we have performed a systematic analysis of disease-associated variants in the 3′ RRs of human protein-coding genes. We have previously analysed the variants that have occurred in two specific domains/motifs of the 3′ untranslated region (3′ UTR) as well as in the 3′ flanking region. Here we have focused upon 83 known variants within the upstream sequence (USS; between the translational termination codon and the upstream core polyadenylation signal sequence) of the 3′ UTR. To place these variants in their proper context, we first performed a comprehensive survey of known cis-regulatory elements within the USS and the mechanisms by which they effect post-transcriptional gene regulation. Although this survey supports the view that RNA regulatory elements function within the context of specific secondary structures, there are no general rules governing how secondary structure might exert its influence. We have therefore addressed this question by systematically evaluating both functional and non-functional (based upon in vitro reporter gene and/or electrophoretic mobility shift assay data) USS variant-containing sequences against known cis-regulatory motifs within the context of predicted RNA secondary structures. This has allowed us not only to establish a reliable and objective means to perform secondary structure prediction but also to identify consistent patterns of secondary structural change that could potentiate the discrimination of functional USS variants from their non-functional counterparts. The resulting rules were then used to infer potential functionality in the case of some of the remaining functionally uncharacterised USS variants, from their predicted secondary structures. This not only led us to identify further patterns of secondary structural change but also several potential novel cis-regulatory motifs within the 3′ UTRs studied.

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 08:45
URI: http://orca.cf.ac.uk/id/eprint/84111

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