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Assessment of sequence-based p53 gene analysis in human breast cancer: messenger RNA in comparison with genomic DNA targets.
KTH, School of Biotechnology (BIO), Proteomics and Nanobiotechnology.ORCID iD: 0000-0002-0602-2062
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1998 (English)In: Clinical Chemistry, ISSN 0009-9147, E-ISSN 1530-8561, Vol. 44, no 3Article in journal (Refereed) Published
Abstract [en]

The high prevalence of p53 mutations in human cancers and the suggestion from several groups that the presence or absence of p53 mutations might have both prognostic and therapeutic consequences point to the importance of optimal methods for p53 determination. Several strategies exploring this have been described, based either on mRNA or genomic DNA as a template. However, no comparative study on the reliability of the two templates has been performed. The principal aim of this study was to study the concordance of RNA- and DNA-based direct sequencing methods in detecting p53 mutations in breast tumors. In 100 tumors, 22 mutations were detected by both methods. Furthermore, one stop mutation, two splice-site mutations, and one intron alteration were found only by genomic sequencing. In addition, the comparative study suggests that cells with missense mutations have increased steady-state concentrations of p53-specific mRNA, in contrast to cells with a gene encoding a truncated protein.

Place, publisher, year, edition, pages
1998. Vol. 44, no 3
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Cell and Molecular Biology
Identifiers
URN: urn:nbn:se:kth:diva-197607PubMedID: 9510848OAI: oai:DiVA.org:kth-197607DiVA: diva2:1052158
Note

QC 20161206

Available from: 2016-12-05 Created: 2016-12-05 Last updated: 2016-12-06Bibliographically approved

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