Ficheiro:Complete Histone with DNA.png

Summary

Description

Schematic representation of the nucleosome, the smallest subunit of the chromatin. The DNA (grey) is wrapped around the nucleosomal core proteins, the histones H2A (yellow), H2B (red), H3 (blue), and H4 (green). The nucleosomal linker is the section of the DNA that is not wrapped around the core. It is normally attached to the histone H1 (not shown). The total length of the DNA per nucleosome is ~180 bp. Date 21 February 2012 Source File:Nucleosome structure-2.png Autor User:Zephyris

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http://commons.wikimedia.org/wiki/File:Complete_Histone_with_DNA.png