Effect of p53 protein redox states on binding to supercoiled and linear DNA

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00209805%3A_____%2F99%3A00000013" target="_blank" >RIV/00209805:_____/99:00000013 - isvavai.cz</a>

Alternative codes found

RIV/68081707:_____/99:17990048

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effect of p53 protein redox states on binding to supercoiled and linear DNA

Original language description

The binding of p53 to its DNA consensus sequence is modulated by the redox state of the protein in vitro. We have shown previously that reduced wild-type p53 binds strongly to supercoiled DNA (scDNA) regardless of the presence or absence of p53CON. Herewe compare the effects of oxidation of p53 by azodicarboxylic acid bis[dimethylamide] (diamide) and other agents on p53 binding to p53CON and to scDNA. Oxidation decreases the binding of p53 to scDNA; however, under conditions where binding to p53CON ina DNA fragment is completely abolished, some residual binding to scDNA is still observed. Increasing the concentration of oxidized p53 confers minimal changes in p53 binding to both scDNA and p53CON. Reduction of the oxidized protein by dithiothreitol neither restores its binding to DNA nor to p53CON in DNA fragments. In the presence of excess zinc ions, oxidation of p53 is, however, reversible.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FD - Oncology and haematology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1999

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Biological Chemistry

ISSN

0021-9258

e-ISSN

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Volume of the periodical

274

Issue of the periodical within the volume

neuv.

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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