Bacheller Biology
Nucleosome
 
Space-filling model of an intact Nucleosome (PDB ID 1aoi). 
 
The nucleosome is the basic unit of structural organization of DNA in a chromosome. 
 
A nucleosome is composed of almost two turns of DNA (purple) wrapped around a set of eight proteins called histones that is referred to as a histome octamer. Each histone octamer is composed of two copies each of the histone proteins H2A (blue) H2B (yellow), H3 (red), and H4 (green).
HomeBiologyHistoryPTK FLClient Login 

3D Protein Image Gallery

Nucleosome
#d animation of an intact nucleosome complex