Cryo-electron microscopy of the chromatin fiber.
Fiche publication
Date publication
juillet 2020
Journal
Current opinion in structural biology
Auteurs
Membres identifiés du Cancéropôle Est :
Dr HAMICHE Ali
Tous les auteurs :
Boopathi R, Dimitrov S, Hamiche A, Petosa C, Bednar J
Lien Pubmed
Résumé
The three-dimensional (3D) organization of chromatin plays a crucial role in the regulation of gene expression. Chromatin conformation is strongly affected by the composition, structural features and dynamic properties of the nucleosome, which in turn determine the nature and geometry of interactions that can occur between neighboring nucleosomes. Understanding how chromatin is spatially organized above the nucleosome level is thus essential for understanding how gene regulation is achieved. Towards this end, great effort has been made to understand how an array of nucleosomes folds into a regular chromatin fiber. This review summarizes new insights into the 3D structure of the chromatin fiber that were made possible by recent advances in cryo-electron microscopy.
Référence
Curr. Opin. Struct. Biol.. 2020 Jul 24;64:97-103