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[Age-related peculiarities of acetylation of rat liver nuclear histones].

The intensity of acetylation of different histone fraction is found to change in postnatal ontogenesis of albino rats. The intensity of acetylation of lisine-rich histone (F1) was maximal in 3-and 12-month old animals. The label incorporation into F3 (arginine-rich) histones considerably decreased in the time interval between 1st and 3d months while its incorporation increased into F2 histones furing all the period of postnatal development studied.