Varshavsky AJ, Georgiev GP. Redistribution of histones during unfolding of chromosomal DNA.
Mol Biol Rep 1973;
1:143-8. [PMID:
24197509 DOI:
10.1007/bf00357154]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/1973] [Indexed: 11/26/2022]
Abstract
Just in the course of unfolding of chromosomal deoxyribonucleoproteins performed in the absence of magnesium ions all DNA-bound histones may be redistributed. This type of redistribution is completely blocked in already 'unfolded' DNP preparations. If the unfolding-induced histone redistribution is allowed it leads to a significant decrease of the average length of free DNA segments in the unfolded, histone F1-depleted DNP. The implications of these data on the mode of DNA packing in chromatin are discussed.
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