A study of strong nucleosomes in the human genome

Micrococcal nuclease (MNase) is widely used to map nucleosomes. However, nucleosomes are highly dynamic and susceptible to experimental conditions, resulting in extreme variability across nucleosome maps, which complicates the generation of accurate nucleosome organization data. We mapped nucleosome...

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Bibliographic Details
Main Authors: Cong, B. (Author), Dong, C. (Author), Fu, L. (Author), Li, S. (Author), Lu, C. (Author), Wang, L. (Author)
Format: Article
Language:English
Published: Elsevier Inc. 2022
Subjects:
Online Access:View Fulltext in Publisher
LEADER 01797nam a2200253Ia 4500
001 10.1016-j.isci.2022.104593
008 220706s2022 CNT 000 0 und d
020 |a 25890042 (ISSN) 
245 1 0 |a A study of strong nucleosomes in the human genome 
260 0 |b Elsevier Inc.  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1016/j.isci.2022.104593 
520 3 |a Micrococcal nuclease (MNase) is widely used to map nucleosomes. However, nucleosomes are highly dynamic and susceptible to experimental conditions, resulting in extreme variability across nucleosome maps, which complicates the generation of accurate nucleosome organization data. We mapped nucleosomes from different individuals using improved MNase-seq. The improvements included setting different digestion levels (low, medium, high) and naked DNA correction to remove the noise caused by experimental manipulation and comparing maps to obtain the accurate position and occupancy of strong nucleosomes (SNs) in the whole genome. In addition, the characteristics of SNs were further excavated. SNs were enriched in Alu elements and near the centromere of Chr12. SNs contain some specific sequences, and the GC content of SNs is different from that of dynamic nucleosomes. The findings suggest that nucleosome location in the genome and the DNA sequence may affect nucleosome stability. © 2022 The Author(s) 
650 0 4 |a Bioinformatics 
650 0 4 |a Biological sciences 
650 0 4 |a Biological sciences research methodologies 
650 0 4 |a Molecular biology 
650 0 4 |a Molecular biology experimental approach 
700 1 |a Cong, B.  |e author 
700 1 |a Dong, C.  |e author 
700 1 |a Fu, L.  |e author 
700 1 |a Li, S.  |e author 
700 1 |a Lu, C.  |e author 
700 1 |a Wang, L.  |e author 
773 |t iScience