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User:Eran Hodis/Sandbox3
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===The Histone Octamer=== | ===The Histone Octamer=== | ||
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| + | <jmol> | ||
| + | <jmolbutton> | ||
| + | <text>load molecule</text> | ||
| + | <script>background [xffffff]; load 1aoi.pdb; set frank off; set echo bottom center; echo PDB ID: 1AOI; color echo black; select all; spin off; wireframe off; spacefill off; trace off; set ambient 40; set specpower 40; slab off; ribbons off; cartoons off; label off; monitor off; rotate x 5; rotate y 180; rotate z -2; zoom 110; translate y -4; select dna; color cpk; spacefill; select DNA and backbone; color violet; select protein; spacefill; color tan; select t1; wireframe off; select a1; wireframe off; move 0 360 0 0 0 0 0 0 6</script> | ||
| + | </jmolbutton> | ||
| + | </jmol> | ||
Revision as of 13:13, 12 May 2010
Nucleosome Structure
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Introduction
The nucleosome core particle contains two copies of each histone protein (H2A, H2B, H3 and 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.
The Histone Octamer
