The many faces of chromatin assembly factor 1.
Chromatin organization requires that histones associate with DNA in the form of nucleosomes the position and composition of which is crucial for chromatin dynamics. Histone chaperones help to deliver specific histone proteins to the sites where chromatin is being newly formed or remodeled. Association of H3-H4 during DNA replication depends on the chromatin assembly factor 1. The study of Arabidopsis plants carrying loss-of-function alleles in each of the three chromatin assembly factor 1 subunits has highlighted the links between chromatin assembly in proliferating cells and other cellular processes. These are the G2 DNA damage checkpoint, homologous recombination, endoreplication control and transcriptional regulation of specific gene sets, all contributing to the plasticity of plants in dealing with alterations in DNA replication-associated chromatin assembly.
Ramirez-Parra
Elena
E
Centro de Biologia Molecular Severo Ochoa, Consejo Superior de Investigaciones Cientificas, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
Gutierrez
Crisanto
C
D000818:Animals; D056504:Chromatin Assembly Factor-1; D002868:Chromosomal Proteins, Non-Histone / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D044127:Epigenesis, Genetic; D018506:Gene Expression Regulation, Plant; D006657:Histones / Q000378:metabolism; D059828:Plant Cells; D010944:Plants / Q000235:genetics / Q000378:metabolism; D011995:Recombination, Genetic
D056504:Chromatin Assembly Factor-1; D002868:Chromosomal Proteins, Non-Histone; D004268:DNA-Binding Proteins; D006657:Histones