maintenance of CRISPR repeat elements / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / 3'-5' exonuclease activity / Recognition and association of DNA glycosylase with site containing an affected purine ...maintenance of CRISPR repeat elements / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / 3'-5' exonuclease activity / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / epigenetic regulation of gene expression / telomere organization / Interleukin-7 signaling / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / RNA Polymerase I Promoter Opening / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / Meiotic synapsis / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / innate immune response in mucosa / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDACs deacetylate histones / DNA endonuclease activity / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / HDMs demethylate histones / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / G2/M DNA damage checkpoint / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / PKMTs methylate histone lysines / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Pre-NOTCH Transcription and Translation / Meiotic recombination / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / Metalloprotease DUBs / RMTs methylate histone arginines / HCMV Early Events / structural constituent of chromatin / UCH proteinases / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / heterochromatin formation / nucleosome assembly / antibacterial humoral response / E3 ubiquitin ligases ubiquitinate target proteins / HATs acetylate histones / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / chromatin organization / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / killing of cells of another organism / defense response to virus / defense response to Gram-negative bacterium / 加水分解酵素; エステル加水分解酵素 / chromosome, telomeric region / Ub-specific processing proteases / defense response to Gram-positive bacterium / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / negative regulation of cell population proliferation / protein-containing complex / : / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / metal ion binding / nucleus / cytosol 類似検索 - 分子機能
Japan Agency for Medical Research and Development (AMED)
JPJ008000
日本
引用
ジャーナル: Nat Commun / 年: 2024 タイトル: Structural insights into how Cas9 targets nucleosomes. 著者: Reina Nagamura / Tomoya Kujirai / Junko Kato / Yutaro Shuto / Tsukasa Kusakizako / Hisato Hirano / Masaki Endo / Seiichi Toki / Hiroaki Saika / Hitoshi Kurumizaka / Osamu Nureki / 要旨: The CRISPR-associated endonuclease Cas9 derived from prokaryotes is used as a genome editing, which targets specific genomic loci by single guide RNAs (sgRNAs). The eukaryotes, the target of genome ...The CRISPR-associated endonuclease Cas9 derived from prokaryotes is used as a genome editing, which targets specific genomic loci by single guide RNAs (sgRNAs). The eukaryotes, the target of genome editing, store their genome DNA in chromatin, in which the nucleosome is a basic unit. Despite previous structural analyses focusing on Cas9 cleaving free DNA, structural insights into Cas9 targeting of DNA within nucleosomes are limited, leading to uncertainties in understanding how Cas9 operates in the eukaryotic genome. In the present study, we perform native-polyacrylamide gel electrophoresis (PAGE) analyses and find that Cas9 targets the linker DNA and the entry-exit DNA region of the nucleosome but not the DNA tightly wrapped around the histone octamer. We further determine cryo-electron microscopy (cryo-EM) structure of the Cas9-sgRNA-nucleosome ternary complex that targets linker DNA in nucleosomes. The structure suggests interactions between Cas9 and nucleosomes at multiple sites. Mutants that reduce the interaction between nucleosomal DNA and Cas9 improve nucleosomal DNA cleavage activity in vitro, although inhibition by the interaction between Cas9 and nucleosomes is limited in vivo. These findings will contribute to the development of novel genome editing tools in chromatin.