Tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA) induces a protein in human lymphocytes binding satellite DNA

Svetlova, M.P.; Fedortseva, R.F.; Tomilin, N.V.

Tsitologiia 25(5): 572-580

1983


ISSN/ISBN: 0041-3771
PMID: 6349062
Document Number: 205145
Interactions between a satellite DNA fragment (SH3, 1.8 kb) cloned in pBR325 plasmid and DEAE-protein fractions from human lymphocytes treated with phorbol-12-myristate-13-acetate (TPA) have been studied by filtration technique through nitrocellulose filters. The 0.3 M fraction was found to have a protein which binds SH3 DNA specifically. Cytogenetic studies have shown an increased frequency of chromosome endoreduplications which may be due to the binding of TPA-induced protein to centromeres.

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