DNA nucleosome,molecular model

Numéro d’image : 11818309
DNA nucleosome,molecular model
DNA nucleosome. Computer model based on X-ray diffraction data of the structure of a nucleosome. A nucleosome is a complex of DNA (deoxyribonucleic acid,red,orange and yellow) and proteins called histones (blue and green helices). The nucleosomes form "beads on a string" of DNA,which are coiled in turn to form a fibre of chromatin,the form in which DNA is stored inside cell nuclei. The structure of chromatin allows huge lengths of DNA to be stored in a very small volume. During DNA replication or the expression of genes in the DNA,the chromatin unwinds into a form that allows regulatory proteins and RNA complexes access to the genes
Licence : Droits gérés
Crédit: Science Photo Library / Laguna Design
Taille de l’image : 4000 px × 3000 px
Model Release : Non requis
Property Release : Non requis
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