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Hum Mol Genet. 2017 Oct 1;26(R2):R208-R215. doi: 10.1093/hmg/ddx306.

Between form and function: the complexity of genome folding.

Author information

1
MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS, UK.
2
Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA.

Abstract

It has been known for over a century that chromatin is not randomly distributed within the nucleus. However, the question of how DNA is folded and the influence of such folding on nuclear processes remain topics of intensive current research. A longstanding, unanswered question is whether nuclear organization is simply a reflection of nuclear processes such as transcription and replication, or whether chromatin is folded by independent mechanisms and this per se encodes function? Evidence is emerging that both may be true. Here, using the α-globin gene cluster as an illustrative model, we provide an overview of the most recent insights into the layers of genome organization across different scales and how this relates to gene activity.

PMID:
28977451
PMCID:
PMC5886466
DOI:
10.1093/hmg/ddx306
[Indexed for MEDLINE]
Free PMC Article

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