Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/ijms22010076
Keywords
chromatin remodelers; nucleosome repositioning; molecular machines; enzyme mechanism
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The packaging of the eukaryotic genome into chromatin regulates the storage of genetic information, and mechanisms such as chromatin remodeling enzymes have evolved to regulate and modify chromatin structure by using the energy from ATP to reposition and rearrange nucleosomes. This review focuses on the nucleosome mobilization activity of these essential molecular machines.
The packaging of the eukaryotic genome into chromatin regulates the storage of genetic information, including the access of the cell's DNA metabolism machinery. Indeed, since the processes of DNA replication, translation, and repair require access to the underlying DNA, several mechanisms, both active and passive, have evolved by which chromatin structure can be regulated and modified. One mechanism relies upon the function of chromatin remodeling enzymes which couple the free energy obtained from the binding and hydrolysis of ATP to the mechanical work of repositioning and rearranging nucleosomes. Here, we review recent work on the nucleosome mobilization activity of this essential family of molecular machines.
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