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Chromosome organization in bacteria: mechanistic insights into genome structure and function
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Journal Article
Chromosome organization in bacteria: mechanistic insights into genome structure and function
2020
Overview
Bacterial chromosomes are folded to compact DNA and facilitate cellular processes. Studying model bacteria has revealed aspects of chromosome folding that are applicable to many species. Primarily controlled by nucleoid-associated proteins, chromosome folding is hierarchical, from large-scale macrodomains to smaller-scale structures that influence DNA transactions, including replication and transcription. Here we review the environmentally regulated, architectural and regulatory roles of nucleoid-associated proteins and the implications for bacterial cell biology. We also highlight similarities and differences in the chromosome folding mechanisms of bacteria and eukaryotes.Advances in sequencing- and imaging-based techniques for chromosome structure analysis have led to a mature understanding of bacterial chromosome structure and dynamics. In this Review, Dame, Rashid and Grainger discuss the hierarchical nature of bacterial chromosome structure and how it is influenced by diverse types of nucleoid-associated proteins. Furthermore, they describe roles for nucleoid-associated proteins and chromosome structure, including in gene expression, chromosome segregation and cell cycle regulation.
Publisher
Nature Publishing Group
Subject
