منابع مشابه
Chromatin dynamics during DNA replication.
Chromatin is composed of DNA and histones, which provide a unified platform for regulating DNA-related processes, mostly through their post-translational modification. During DNA replication, histone arrangement is perturbed, first to allow progression of DNA polymerase and then during repackaging of the replicated DNA. To study how DNA replication influences the pattern of histone modification...
متن کاملChromatin Challenges during DNA Replication and Repair
Inheritance and maintenance of the DNA sequence and its organization into chromatin are central for eukaryotic life. To orchestrate DNA-replication and -repair processes in the context of chromatin is a challenge, both in terms of accessibility and maintenance of chromatin organization. To meet the challenge of maintenance, cells have evolved efficient nucleosome-assembly pathways and chromatin...
متن کاملChromatin: Nucleosome assembly during DNA replication
In the cells of higher eukaryotes, the genomic DNA, which is of a few metres in length, is compacted in such a way as to be confined within a nucleus only micrometres in diameter. This impressive compaction is brought about by association of the DNA with nuclear proteins, of which histones are the most prevalent. The resulting complex nucleoprotein structure is known as chromatin, and the basic...
متن کاملKnotting dynamics during DNA replication.
The topology of plasmid DNA changes continuously as replication progresses. But the dynamics of the process remains to be fully understood. Knotted bubbles form when topo IV knots the daughter duplexes behind the fork in response to their degree of intertwining. Here, we show that knotted bubbles can form during unimpaired DNA replication, but they become more evident in partially replicated in...
متن کاملChromatin and DNA replication.
The size of a eukaryotic genome presents a unique challenge to the cell: package and organize the DNA to fit within the confines of the nucleus while at the same time ensuring sufficient dynamics to allow access to specific sequences and features such as genes and regulatory elements. This is achieved via the dynamic nucleoprotein organization of eukaryotic DNA into chromatin. The basic unit of...
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ژورنال
عنوان ژورنال: Genome Research
سال: 2016
ISSN: 1088-9051,1549-5469
DOI: 10.1101/gr.201244.115