McMurray CT, van Holde KE. Binding of ethidium bromide causes dissociation of the nucleosome core particle.
Proc Natl Acad Sci U S A 1986;
83:8472-6. [PMID:
3464964 PMCID:
PMC386952 DOI:
10.1073/pnas.83.22.8472]
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Abstract
The binding of ethidium bromide to chicken erythrocyte core particles results in a step-wise dissociation of the structure that involves the initial release of one copy each of histones H2A and H2B. Quantitation of the dissociated DNA reveals that a critical amount of drug is required for the dissociation. Above the critical value, the dissociation is time dependent, reversible, and independent of DNA concentration.
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