Author: Francis, Nicole J; Sihou, Djamouna
Title: Inheritance of Histone (H3/H4): A Binary Choice? Cord-id: bsi8ofqz Document date: 2020_9_9
ID: bsi8ofqz
Snippet: Histones carry information in the form of post-translational modifications (PTMs). For this information to be propagated through cell cycles, parental histones and their PTMs need to be maintained at the same genomic locations. Yet, during DNA replication, every nucleosome in the genome is disrupted to allow passage of the replisome. Recent data have identified histone chaperone activities that are intrinsic components of the replisome and implicate them in maintaining parental histones during D
Document: Histones carry information in the form of post-translational modifications (PTMs). For this information to be propagated through cell cycles, parental histones and their PTMs need to be maintained at the same genomic locations. Yet, during DNA replication, every nucleosome in the genome is disrupted to allow passage of the replisome. Recent data have identified histone chaperone activities that are intrinsic components of the replisome and implicate them in maintaining parental histones during DNA replication. We propose that structural and kinetic coordination between DNA replication and replisome-associated histone chaperone activities ensures positional inheritance of histones and their PTMs. When this coordination is perturbed, histones may instead be recycled to random genomic locations by alternative histone chaperones.
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