spindle attachment to meiosis I kinetochore / inner kinetochore / centromeric DNA binding / CENP-A containing nucleosome / protein localization to chromosome, centromeric region / CENP-A containing chromatin assembly / condensed chromosome, centromeric region / attachment of mitotic spindle microtubules to kinetochore / kinetochore assembly / ChAHP complex assembly ...spindle attachment to meiosis I kinetochore / inner kinetochore / centromeric DNA binding / CENP-A containing nucleosome / protein localization to chromosome, centromeric region / CENP-A containing chromatin assembly / condensed chromosome, centromeric region / attachment of mitotic spindle microtubules to kinetochore / kinetochore assembly / ChAHP complex assembly / mitotic cytokinesis / FXIIa activates plasma kallikrein-kinin system / chromosome, centromeric region / mitotic metaphase chromosome alignment / Interaction of NuRD complexes with transcription factors / pericentric heterochromatin / NuRD complex assembly / CHD6, CHD7, CHD8, CHD9 subfamily / CHD1 and CHD2 subfamily / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Replacement of protamines by nucleosomes in the male pronucleus / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / telomere organization / Deposition of new CENPA-containing nucleosomes at the centromere / 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 / Resolution of Sister Chromatid Cohesion / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / chromosome segregation / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Meiotic synapsis / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / establishment of mitotic spindle orientation / HDACs deacetylate histones / Transcriptional regulation by small RNAs / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / RHO GTPases Activate Formins / HDMs demethylate histones / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / PKMTs methylate histone lysines / G2/M DNA damage checkpoint / Formation of the beta-catenin:TCF transactivating complex / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / kinetochore / Pre-NOTCH Transcription and Translation / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / nucleosomal DNA binding / RMTs methylate histone arginines / HCMV Early Events / Metalloprotease DUBs / innate immune response in mucosa / structural constituent of chromatin / Separation of Sister Chromatids / mitotic cell cycle / nucleosome / Regulation of PD-L1(CD274) transcription / nucleosome assembly / UCH proteinases / HATs acetylate histones / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / RUNX1 regulates transcription of genes involved in differentiation of HSCs / chromatin organization / Dengue Virus-Host Interactions / Processing of DNA double-strand break ends / antimicrobial humoral immune response mediated by antimicrobial peptide / Senescence-Associated Secretory Phenotype (SASP) / heterochromatin formation / Oxidative Stress Induced Senescence / antibacterial humoral response / Estrogen-dependent gene expression / nuclear body / chromosome, telomeric region / defense response to Gram-positive bacterium 類似検索 - 分子機能
ジャーナル: EMBO Rep / 年: 2019 タイトル: CENP-C unwraps the human CENP-A nucleosome through the H2A C-terminal tail. 著者: Ahmad Ali-Ahmad / Silvija Bilokapić / Ingmar B Schäfer / Mario Halić / Nikolina Sekulić / 要旨: Centromeres are defined epigenetically by nucleosomes containing the histone H3 variant CENP-A, upon which the constitutive centromere-associated network of proteins (CCAN) is built. CENP-C is ...Centromeres are defined epigenetically by nucleosomes containing the histone H3 variant CENP-A, upon which the constitutive centromere-associated network of proteins (CCAN) is built. CENP-C is considered to be a central organizer of the CCAN. We provide new molecular insights into the structure of human CENP-A nucleosomes, in isolation and in complex with the CENP-C central region (CENP-C ), the main CENP-A binding module of human CENP-C. We establish that the short αN helix of CENP-A promotes DNA flexibility at the nucleosome ends, independently of the sequence it wraps. Furthermore, we show that, in vitro, two regions of human CENP-C (CENP-C and CENP-C ) both bind exclusively to the CENP-A nucleosome. We find CENP-C to bind with high affinity due to an extended hydrophobic area made up of CENP-A and CENP-A . Importantly, we identify two key conformational changes within the CENP-A nucleosome upon CENP-C binding. First, the loose DNA wrapping of CENP-A nucleosomes is further exacerbated, through destabilization of the H2A C-terminal tail. Second, CENP-C rigidifies the N-terminal tail of H4 in the conformation favoring H4 monomethylation, essential for a functional centromere.