Histone structures,diagram

Numéro d’image : 11604254
Histone structures,diagram
Histone structures,diagram. Histone cores are cylindrical structures around which the genetic molecule DNA (deoxyribonucleic acid) is wound with other proteins to form chromatin,the form in which DNA is packed into cell nuclei. Each histone core consists of eight histone monomers,of which there are four types (top): H2A,H2B,H3 and H4. At centre,histone assembly has two H3/H4 dimers forming a tetramer,and then combining with two H2A/H2B dimers to form the octamer. Across bottom are various ways in which the histome tail (shown at top) can be modified,and the processes this 'histone code' can affect
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