Effect of nonsense mutations on PTEN mRNA stability.

Abstract:

:Cowden disease is an autosomal dominant disorder associated with an elevated risk of breast, thyroid and skin cancers, in which germline mutations of a tumour suppressor gene (PTEN) have been identified. PTEN has a dual-specificity tyrosine phosphatase domain thought to be essential for tumour suppression. Previous genotype/phenotype correlations have identified several potential associations, for example that truncating mutations result in increased breast cancer risk. Such associations are useful in evaluating the phenotypic functions of PTEN sub-domains. However, genotype/phenotype correlations are likely to be complicated by nonsense mediated mRNA degradation. We report here that three out of four mutations do not significantly affect PTEN transcript stability. Furthermore, we show that manual sequencing methods are better than current dye-based sequencing technologies for detecting heterozygous mutations in PTEN transcripts.

journal_name

Hum Genet

journal_title

Human genetics

authors

Raizis AM,Ferguson MM,George PM

doi

10.1007/s004390000317

keywords:

subject

Has Abstract

pub_date

2000-07-01 00:00:00

pages

24-7

issue

1

eissn

0340-6717

issn

1432-1203

journal_volume

107

pub_type

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