The dynamics of chromatin carcinogen interactions in the human cell | Zendy

Arend Kootstra | Zendy

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The dynamics of chromatin carcinogen interactions in the human cell

Author(s) -

Arend Kootstra

Publication year - 1986

Publication title -

nucleic acids research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 9.008

H-Index - 537

eISSN - 1362-4954

pISSN - 0305-1048

DOI - 10.1093/nar/14.24.9897

Subject(s) - chromatin , biology , carcinogen , dna , histone , benzo(a)pyrene , biochemistry , microbiology and biotechnology , genetics

Human lung epithelioid cells were treated with Benzo (a) pyrene diol epoxide (anti) in order to establish the binding and removal of covalent adducts in chromosomal components. Isolating two different classes of mononucleosomes, it was found that their DNA contained different concentrations of B(a)PDE-DNA adducts, while in both these mononucleosomal preparations only histones H2A and H3 contained detectable amounts of the carcinogen. Further analysis showed that in the intact human cell the carcinogen-DNA adduct distribution is constantly changing as a function of differential accessibility and repair. These results emphasize the dynamics of chromatin-carcinogen modifications.

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