- EMDB-17253: Structure of TRF1core in complex with telomeric nucleosome (4:1 c... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-17253
タイトル
Structure of TRF1core in complex with telomeric nucleosome (4:1 complex)
マップデータ
Postprocess map of TRF1-TeloNCP 4:1 complex
試料
複合体: TRF1core in complex with telomeric nucleosome
複合体: Human telomeric nucleosome
タンパク質・ペプチド: Human Histone H3
タンパク質・ペプチド: Human histone H4
タンパク質・ペプチド: Human Histone H2A
タンパク質・ペプチド: Human histone H2B
DNA: Telomeric DNA G strand
DNA: Telomeric DNA C strand
複合体: Human TRF1core complex
タンパク質・ペプチド: Human TRF1 protein
キーワード
Telomeric nucleosome / shelterin / telomere / DNA BINDING PROTEIN
機能・相同性
機能・相同性情報
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 / 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 / Recognition and association of DNA glycosylase with site containing an affected pyrimidine ...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 / 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 / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / telomere organization / Interleukin-7 signaling / Inhibition of DNA recombination at telomere / RNA Polymerase I Promoter Opening / Meiotic synapsis / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / epigenetic regulation of gene expression / 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 / innate immune response in mucosa / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDMs demethylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / Metalloprotease DUBs / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / UCH proteinases / HCMV Early Events / antimicrobial humoral immune response mediated by antimicrobial peptide / structural constituent of chromatin / antibacterial humoral response / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / nucleosome / heterochromatin formation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / nucleosome assembly / Processing of DNA double-strand break ends / HATs acetylate histones / Senescence-Associated Secretory Phenotype (SASP) / Factors involved in megakaryocyte development and platelet production / chromatin organization / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Oxidative Stress Induced Senescence / gene expression / Estrogen-dependent gene expression / 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 / extracellular space / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / identical protein binding / nucleus / membrane / cytosol 類似検索 - 分子機能
ジャーナル: Sci Adv / 年: 2023 タイトル: Structural basis of telomeric nucleosome recognition by shelterin factor TRF1. 著者: Hongmiao Hu / Anne-Marie M van Roon / George E Ghanim / Bilal Ahsan / Abraham O Oluwole / Sew-Yeu Peak-Chew / Carol V Robinson / Thi Hoang Duong Nguyen / 要旨: Shelterin and nucleosomes are the key players that organize mammalian chromosome ends into the protective telomere caps. However, how they interact with each other at telomeres remains unknown. We ...Shelterin and nucleosomes are the key players that organize mammalian chromosome ends into the protective telomere caps. However, how they interact with each other at telomeres remains unknown. We report cryo-electron microscopy structures of a human telomeric nucleosome both unbound and bound to the shelterin factor TRF1. Our structures reveal that TRF1 binds unwrapped nucleosomal DNA ends by engaging both the nucleosomal DNA and the histone octamer. Unexpectedly, TRF1 binding shifts the register of the nucleosomal DNA by 1 bp. We discovered that phosphorylation of the TRF1 C terminus and a noncanomical DNA binding surface on TRF1 are critical for its association with telomeric nucleosomes. These insights into shelterin-chromatin interactions have crucial implications for understanding telomeric chromatin organization and other roles of shelterin at telomeres including replication and transcription.
全体 : TRF1core in complex with telomeric nucleosome
全体
名称: TRF1core in complex with telomeric nucleosome
要素
複合体: TRF1core in complex with telomeric nucleosome
複合体: Human telomeric nucleosome
タンパク質・ペプチド: Human Histone H3
タンパク質・ペプチド: Human histone H4
タンパク質・ペプチド: Human Histone H2A
タンパク質・ペプチド: Human histone H2B
DNA: Telomeric DNA G strand
DNA: Telomeric DNA C strand
複合体: Human TRF1core complex
タンパク質・ペプチド: Human TRF1 protein
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超分子 #1: TRF1core in complex with telomeric nucleosome
超分子
名称: TRF1core in complex with telomeric nucleosome / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#7
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超分子 #2: Human telomeric nucleosome
超分子
名称: Human telomeric nucleosome / タイプ: complex / ID: 2 / 親要素: 1 / 含まれる分子: #1-#6 詳細: Human telomeric nucleosome with 145 bp DNA and human histone octamer. 145 bp DNA consists of 23 copies of TTAGGG repeats. Histone octamer consists of 2 copies of H2A, H2B, H3 and H4