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Curr Opin Struct Biol. 2017 Feb;42:162-168. doi: 10.1016/j.sbi.2017.02.004. Epub 2017 Mar 8.

Higher order assembly: folding the chromosome.

Author information

1
Nuclear Dynamics Programme, Babraham Institute, Cambridge CB22 3AT, UK.
2
Nuclear Dynamics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Cambridge Systems Biology Centre, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK. Electronic address: karen.lipkow@babraham.ac.uk.

Abstract

The linear molecules of DNA that constitute a eukaryotic genome have to be carefully organised within the nucleus to be able to correctly direct gene expression. Microscopy and chromosome capture methods have revealed a hierarchical organisation into territories, domains and subdomains that ensure the accessibility of expressed genes and eventually chromatin loops that serve to bring gene enhancers into proximity of their target promoters. A rapidly growing number of genome-wide datasets and their analyses have given detailed information into the conformation of the entire genome, allowing evolutionary insights, observations of genome rearrangements during development and the identification of new gene-to-disease associations. The field is now progressing into using computational models of genome dynamics to investigate the mechanisms that shape genome structure, placing increasing importance on the role of chromatin associated proteins for this process.

PMID:
28284913
DOI:
10.1016/j.sbi.2017.02.004
[Indexed for MEDLINE]
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