Data from: Chromatin is an ancient innovation conserved between Archaea and Eukarya

Ron Ammar, Dax Torti, Kyle Tsui, Marinella Gebbia, Tanja Durbic, Gary D. Bader, Guri Giaever & Corey Nislow
The eukaryotic nucleosome is the fundamental unit of chromatin, comprising a protein octamer that wraps ~147bp of DNA and has essential roles in DNA compaction, replication and gene expression. Nucleosomes and chromatin have long been considered to be unique to eukaryotes, yet studies of select archaea have identified homologs of histone proteins that assemble into tetrameric nucleosomes. Here we report the first archaeal genome-wide nucleosome occupancy map, as observed in the halophile Haloferax volcanii. Nucleosome...
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