» Articles » PMID: 6788105

DNA-histone Interactions in Nucleosomes

Overview
Journal Biophys J
Publisher Cell Press
Specialty Biophysics
Date 1980 Oct 1
PMID 6788105
Citations 19
Authors
Affiliations
Soon will be listed here.
Abstract

We have utilized micrococcal nuclease digestion and thermal denaturation studies to investigate the binding of DNA to the histone core of the nucleosome. We conclude that a total of approximately 168 base pairs (bp) of DNA can interact with the histone core under appropriate solution conditions, even in the absence of lysine-rich histones. The interactions in this total length of DNA can be divided into three classes: (a) approximately 22 bp at the ends is bound only at moderate ionic strength. It is easily displaced, and its removal yields the 146 bp core particle. (b) approximately 46 bp near the ends of the core DNA are quite weakly bound to the core, and are displaced at quite moderate temperatures. (c) The remaining central 100 bp are strongly bound, and interact with all of the sites on the histones which strongly protect DNA against DNAse I digestion. A theoretical analysis of the cleavage of nucleosomal DNA by DNAse I has been used to develop evidence that the pattern of protection offered by the histone core is very similar in nuclei to that in isolated core particles.

Citing Articles

Impact of swabbing solutions on the recovery of biological material from non-porous surfaces.

Kuffel A, Daeid N, Gray A Forensic Sci Int Synerg. 2024; 9:100551.

PMID: 39281425 PMC: 11399651. DOI: 10.1016/j.fsisyn.2024.100551.


Effects of exogenous deoxyribonuclease I in collagen antibody-induced arthritis.

Macakova K, Borbelyova V, Tekelova M, Janko J, Pastorek M, Hoksa R J Inflamm (Lond). 2024; 21(1):36.

PMID: 39251994 PMC: 11386490. DOI: 10.1186/s12950-024-00403-z.


Comparison of swabbing and cutting-out DNA collection methods from cotton, paper, and cardboard surfaces.

Kuffel A, Daeid N, Gray A Forensic Sci Int Synerg. 2024; 8:100453.

PMID: 38283046 PMC: 10821607. DOI: 10.1016/j.fsisyn.2023.100453.


Isolation and Staining Reveal the Presence of Extracellular DNA in Marine Gel Particles.

Al-Wahaibi A, Upstill-Goddard R, Burgess J Gels. 2023; 9(3).

PMID: 36975700 PMC: 10048003. DOI: 10.3390/gels9030251.


Multiple-Monitor HPLC Assays for Rapid Process Development, In-Process Monitoring, and Validation of AAV Production and Purification.

Gagnon P, Goricar B, Mencin N, Zvanut T, Peljhan S, Leskovec M Pharmaceutics. 2021; 13(1).

PMID: 33477351 PMC: 7830902. DOI: 10.3390/pharmaceutics13010113.


References
1.
Hewish D, Burgoyne L . Chromatin sub-structure. The digestion of chromatin DNA at regularly spaced sites by a nuclear deoxyribonuclease. Biochem Biophys Res Commun. 1973; 52(2):504-10. DOI: 10.1016/0006-291x(73)90740-7. View

2.
Olins A, Olins D . Spheroid chromatin units (v bodies). Science. 1974; 183(4122):330-2. DOI: 10.1126/science.183.4122.330. View

3.
Sahasrabuddhe C, VAN Holde K . The effect of trypsin on nuclease-resistant chromatin fragments. J Biol Chem. 1974; 249(1):152-6. View

4.
Kornberg R . Chromatin structure: a repeating unit of histones and DNA. Science. 1974; 184(4139):868-71. DOI: 10.1126/science.184.4139.868. View

5.
Lohr D, VAN Holde K . Yeast chromatin subunit structure. Science. 1975; 188(4184):165-6. DOI: 10.1126/science.1090006. View