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An alternative beads‐on‐a‐string chromatin architecture in Thermococcus kodakarensis
Author(s) -
Maruyama Hugo,
Harwood Janet C,
Moore Karen M,
Paszkiewicz Konrad,
Durley Samuel C,
Fukushima Hisanori,
Atomi Haruyuki,
Takeyasu Kunio,
Kent Nicholas A
Publication year - 2013
Publication title -
embo reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.584
H-Index - 184
eISSN - 1469-3178
pISSN - 1469-221X
DOI - 10.1038/embor.2013.94
Subject(s) - chromatin , biology , histone , dna , genetics , archaea , chip sequencing , histone code , computational biology , microbiology and biotechnology , nucleosome , gene
We have applied chromatin sequencing technology to the euryarchaeon Thermococcus kodakarensis , which is known to possess histone‐like proteins. We detect positioned chromatin particles of variable sizes associated with lengths of DNA differing as multiples of 30 bp (ranging from 30 bp to >450 bp) consistent with formation from dynamic polymers of the archaeal histone dimer. T. kodakarensis chromatin particles have distinctive underlying DNA sequence suggesting a genomic particle‐positioning code and are excluded from gene‐regulatory DNA suggesting a functional organization. Beads‐on‐a‐string chromatin is therefore conserved between eukaryotes and archaea but can derive from deployment of histone‐fold proteins in a variety of multimeric forms.