Nucleosomes: Difference between revisions
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<scene name='1aoi/Introduction/2'>The nucleosome core particle</scene> contains two copies of each histone <font color=tan>'''protein'''</font> (<font color=tan>'''H2A, H2B, H3, H4'''</font>) and 146 basepairs (bp) of superhelical <font color=purple>'''DNA'''</font> 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.<br /> | |||
Examples of [[Archaeal_Histones]] | Examples of [[Archaeal_Histones]] | ||
<br clear='right'> | <br clear='right'> | ||
Revision as of 13:04, 3 June 2012
For a general introduction beyond what is provided below, please see Wikipedia: Nucleosome. For a list of nucleosome structures, see Category: Nucleosome.
Scenes for Projection in Biochemistry ClassesScenes for Projection in Biochemistry Classes
This section offers some large scenes of a nucleosome (1aoi), as determined in Tim Richmond's lab, suitable for projection in biochemistry classes.
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1. : DNA, Protein.
2.
3.
H2a
H2b
H3
H4
4.
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.
Examples of Archaeal_Histones
3D structures of histone3D structures of histone
Additional ResourcesAdditional Resources
For Additional Information, See: Nucleic Acids