Rat liver chromatin digested in situ with endogeneous Mg(2+)-dependent deoxyribonuclease exhibits two distinct DNA repeats.

No Thumbnail Available
Date
1992-02-01
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Incubation of rat liver nuclei in the presence of 1.0-5.0 mM Mg2+ at 37 degrees C releases oligonucleosomes containing at least two distinct chromatin-DNA repeat elements. The 'short' repeat is derived from the dimer to pentamer series, while the 'long' repeat is found in the monomer and hexamer to decanucleosomes. Both repeat lengths decrease during enzymatic hydrolysis but in 5.0 mM Mg2+, which is optimal concentration, the 'long' repeat is degraded faster.
Description
Keywords
Citation
Bhui AJ, Modak SP. Rat liver chromatin digested in situ with endogeneous Mg(2+)-dependent deoxyribonuclease exhibits two distinct DNA repeats. Indian Journal of Biochemistry & Biophysics. 1992 Feb; 29(1): 42-8