On the de novo formation of compact oligonucleosomes at high ionic strength. Evidence for nucleosomal sliding in high salt
- PMID: 493146
- PMCID: PMC328018
- DOI: 10.1093/nar/7.2.291
On the de novo formation of compact oligonucleosomes at high ionic strength. Evidence for nucleosomal sliding in high salt
Abstract
Histone H 1-depleted chromatin made from acid extracted, intact nuclei was exposed to various ionic strengths. NaCl concentrations above 0.3 M sufficed to generate novel oligonucleosomes formerly characterized as "compact oligomers" and "spacerless dinucleosomes". Such particles could not be identified within H 1-depleted nuclei or chromatin at low ionic strengths. Their formation, proceeding within days at 0 degrees C, was accelerated by increasing ionic strengths. The data was discussed in terms of a salt-induced motion of nucleosomal core particles along the DNA to form compact oligomers.
References
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
