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REVIEW

Dynamics and interplay of nuclear architecture, genome organization, and gene expression

Max Planck Institute of Immunobiology, 79108 Freiburg, Germany

The organization of the genome in the nucleus of a eukaryotic cell is fairly complex and dynamic. Various features of the nuclear architecture, including compartmentalization of molecular machines and the spatial arrangement of genomic sequences, help to carry out and regulate nuclear processes, such as DNA replication, DNA repair, gene transcription, RNA processing, and mRNA transport. Compartmentalized multiprotein complexes undergo extensive modifications or exchange of protein subunits, allowing for an exquisite dynamics of structural components and functional processes of the nucleus. The architecture of the interphase nucleus is linked to the spatial arrangement of genes and gene clusters, the structure of chromatin, and the accessibility of regulatory DNA elements. In this review, we discuss recent studies that have provided exciting insight into the interplay between nuclear architecture, genome organization, and gene expression.

[Keywords: Nuclear organization; chromatin; gene localization; chromosomal interactions]]

E-MAIL grosschedl{at}immunbio.mpg.de; FAX 49-761-5108798.

Article is online at http://www.genesdev.org/cgi/doi/10.1101/gad.1604607

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