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Scenes for Projection in Biochemistry Classes
1aoi, resolution 2.80Å
1. : DNA, Protein.
H2a H2b H3 H4
contains two copies of each histone protein (H2A, H2B, H3, H4) and 146 basepairs (bp) of superhelical DNA wrapped around this histone octamer. It represents the first order of DNA packaging in the nucleus and as such is the principal structure that determines DNA accessibility (this scene was created by David Marcey, Eran Hodis, Jaime Prilusky).
Examples of Archaeal_Histones
3D structures of histone
For Additional Information, See: Nucleic Acids