@article{4086, keywords = {Animals, Humans, Transcription Factors, Protein Binding, Mutation, Gene Library, Transcriptional Activation, Cell Differentiation, Histones, Nucleosomes, Chromatin, Neoplasms, Chromatin Assembly and Disassembly, Protein Domains}, author = {John Bagert and Michelle Mitchener and Agata Patriotis and Barbara Dul and Felix Wojcik and Benjamin Nacev and Lijuan Feng and C David Allis and Tom Muir}, title = {Oncohistone mutations enhance chromatin remodeling and alter cell fates.}, abstract = {

Whole-genome sequencing data mining efforts have revealed numerous histone mutations in a wide range of cancer types. These occur in all four core histones in both the tail and globular domains and remain largely uncharacterized. Here we used two high-throughput approaches, a DNA-barcoded mononucleosome library and a humanized yeast library, to profile the biochemical and cellular effects of these mutations. We identified cancer-associated mutations in the histone globular domains that enhance fundamental chromatin remodeling processes, histone exchange and nucleosome sliding, and are lethal in yeast. In mammalian cells, these mutations upregulate cancer-associated gene pathways and inhibit cellular differentiation by altering expression of lineage-specific transcription factors. This work represents a comprehensive functional analysis of the histone mutational landscape in human cancers and leads to a model in which histone mutations that perturb nucleosome remodeling may contribute to disease development and/or progression.

}, year = {2021}, journal = {Nat Chem Biol}, volume = {17}, pages = {403-411}, month = {2021 Apr}, issn = {1552-4469}, doi = {10.1038/s41589-021-00738-1}, language = {eng}, }