Studies on liver chromatin from rats treated with dimethylnitrosamine.

Biochimica Et Biophysica Acta
H K Cooper, R F Itzhaki

Abstract

Shortly after injecting a single low dose of N,N-dimethylnitrosamine into rats, the DNA, RNA and histones are methylated, the level in the DNA greatly exceeding that in the histones. The composition of the chromatin and the electrophoretic profiles of the histone and non-histone proteins are not detectably different from those obtained from control animals. Electric birefringence studies suggest that methylation may result in both interparticle cross-linking and some localised loosening of the DNA-protein complex complex.

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Jan 1, 1978·Zeitschrift Für Krebsforschung Und Klinische Onkologie. Cancer Research and Clinical Oncology·R Tsanev, D Hadjiolov
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