Recognition of non-canonical DNA structures in genomic DNA sequences by p53 proteins
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F09%3A00048866" target="_blank" >RIV/00216224:14330/09:00048866 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Recognition of non-canonical DNA structures in genomic DNA sequences by p53 proteins
Original language description
In our analyses we combined molecular and computational approaches to understand the mutant p53 function in specific gene regulation via binding to non-canonical DNA structures in chromatin DNA. We used two glioblastoma cell lines U251 (R273H) and Onda11(R273C) expressing endogenous mutp53 proteins to isolate natural mutant p53 binding sites (mutp53BS) by genome- wide ChIP-cloning. In our computational work, we developed tools for rapid identification of DNA sequences (among the isolated mutp53BS) tending to form non-B structures (hairpins and triplex DNA) as well as for mapping their genomic locations. These sites are frequently localized in the regulatory first introns of genes and are enriched in repetitive elements. Potential to form triplex and cruciform structures was predicted by developed computational tools and detected by enzymatic and chemical probing.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA204%2F08%2F1560" target="_blank" >GA204/08/1560: In vitro and in silico identification of non-canonical DNA structures in genomic DNA sequences</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů