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B-DNA superhelical turn. 140-bp fragment.
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Description (Edit): B-DNA superhelical turn. 140-bp fragment. 1. The right-handed B-DNA superhelix on the outside contains several sharp bends and makes numerous interactions with the histone octamer within. The central turn of superhelix and H3 . H4 tetramer have dyad symmetry, but the H2A . H2B dimers show departures due to interparticle associations. more....
Reference (Edit): 1. http://lib.bioinfo.pl/meid:29667
Channels: Molecular Biology  Structural Bology  Biophysics