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Sulfolobus synthesizes large amounts of small chromatin proteins Cren7 and Sul7d. The two proteins share overall structural similarity, but differ distinctly in the DNA-binding region between β3- and β4-strands. While Sul7d possesses a hinge of two amino acid residues, Cren7 contains a flexible seven-residue loop (loop β3–β4) in the region. Here, we report the role of loop β3–β4 in the interaction...
Archaea, along with Bacteria and Eukarya, are the three domains of life. In all living cells, chromatin proteins serve a crucial role in maintaining the integrity of the structure and function of the genome. An array of small, abundant and basic DNA-binding proteins, considered candidates for chromatin proteins, has been isolated from the Euryarchaeota and the Crenarchaeota, the two major phyla in...
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