- EMDB-17252: Structure of TRF1core in complex with telomeric nucleosome -
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基本情報
登録情報
データベース: EMDB / ID: EMD-17252
タイトル
Structure of TRF1core in complex with telomeric nucleosome
マップデータ
Postprocess map of TRF1core-TeloNCP 2:1 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: Histone H3.1
タンパク質・ペプチド: Histone H4
タンパク質・ペプチド: Histone H2A type 1-C
タンパク質・ペプチド: Histone H2B type 1-C/E/F/G/I
DNA: Telomeric DNA C strand
DNA: Telomeric DNA G strand
複合体: Human TRF1core complex
タンパク質・ペプチド: Telomeric repeat-binding factor 1
タンパク質・ペプチド: Telomeric repeat-binding factor 1
リガンド: water
キーワード
Telomeric nucleosome / shelterin / telomere / DNA BINDING PROTEIN
機能・相同性
機能・相同性情報
positive regulation of shelterin complex assembly / negative regulation of establishment of protein localization to telomere / negative regulation of establishment of RNA localization to telomere / negative regulation of establishment of protein-containing complex localization to telomere / negative regulation of telomere maintenance via semi-conservative replication / negative regulation of telomeric D-loop disassembly / meiotic telomere clustering / telomeric D-loop disassembly / shelterin complex / Telomere C-strand synthesis initiation ...positive regulation of shelterin complex assembly / negative regulation of establishment of protein localization to telomere / negative regulation of establishment of RNA localization to telomere / negative regulation of establishment of protein-containing complex localization to telomere / negative regulation of telomere maintenance via semi-conservative replication / negative regulation of telomeric D-loop disassembly / meiotic telomere clustering / telomeric D-loop disassembly / shelterin complex / Telomere C-strand synthesis initiation / t-circle formation / double-stranded telomeric DNA binding / ankyrin repeat binding / Telomere C-strand (Lagging Strand) Synthesis / nuclear telomere cap complex / G-rich strand telomeric DNA binding / telomere capping / Polymerase switching on the C-strand of the telomere / Processive synthesis on the C-strand of the telomere / Removal of the Flap Intermediate from the C-strand / DNA binding, bending / negative regulation of telomere maintenance via telomere lengthening / negative regulation of DNA replication / telomeric repeat DNA binding / negative regulation of telomere maintenance via telomerase / positive regulation of telomere maintenance / Telomere Extension By Telomerase / telomere maintenance via telomerase / 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 / 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 / telomere maintenance / 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 / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / 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 / spindle / Activation of anterior HOX genes in hindbrain development during early embryogenesis / fibrillar center / 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 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: Histone H3.1
タンパク質・ペプチド: Histone H4
タンパク質・ペプチド: Histone H2A type 1-C
タンパク質・ペプチド: Histone H2B type 1-C/E/F/G/I
DNA: Telomeric DNA C strand
DNA: Telomeric DNA G strand
複合体: Human TRF1core complex
タンパク質・ペプチド: Telomeric repeat-binding factor 1
タンパク質・ペプチド: Telomeric repeat-binding factor 1
リガンド: water
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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-#8
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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