+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-17253 | ||||||||||||
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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 |
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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 / nucleosomal DNA binding ...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 / nucleosomal DNA binding / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / telomere organization / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / epigenetic regulation of gene expression / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / 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 / 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 / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / heterochromatin formation / PKMTs methylate histone lysines / Metalloprotease DUBs / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / UCH proteinases / antimicrobial humoral immune response mediated by antimicrobial peptide / nucleosome / antibacterial humoral response / nucleosome assembly / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / HATs acetylate histones / Processing of DNA double-strand break ends / gene expression / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / chromosome, telomeric region / Ub-specific processing proteases / defense response to Gram-positive bacterium / cadherin binding / protein heterodimerization activity / Amyloid fiber formation / negative regulation of cell population proliferation / protein-containing complex / DNA binding / RNA binding / extracellular space / extracellular exosome / extracellular region / nucleoplasm / identical protein binding / membrane / nucleus / cytosol 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) | ||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.67 Å | ||||||||||||
データ登録者 | Hu H / van Roon AMM / Ghanim GE / Ahsan B / Oluwole A / Peak-Chew S / Robinson CV / Nguyen THD | ||||||||||||
資金援助 | 英国, European Union, 米国, 3件
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引用 | 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. | ||||||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_17253.map.gz | 257.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-17253-v30.xml emd-17253.xml | 29.1 KB 29.1 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_17253_fsc.xml | 15 KB | 表示 | FSCデータファイル |
画像 | emd_17253.png | 85 KB | ||
その他 | emd_17253_additional_1.map.gz emd_17253_half_map_1.map.gz emd_17253_half_map_2.map.gz | 225.4 MB 226.6 MB 226.6 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-17253 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-17253 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_17253_validation.pdf.gz | 1.1 MB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_17253_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | emd_17253_validation.xml.gz | 22.1 KB | 表示 | |
CIF形式データ | emd_17253_validation.cif.gz | 29.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17253 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17253 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_17253.map.gz / 形式: CCP4 / 大きさ: 282.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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注釈 | Postprocess map of TRF1-TeloNCP 4:1 complex | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.826 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-追加マップ: Refine3D map of TRF1-TeloNCP 4:1 complex
ファイル | emd_17253_additional_1.map | ||||||||||||
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注釈 | Refine3D map of TRF1-TeloNCP 4:1 complex | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: half map of TRF1-TeloNCP 4:1 complex
ファイル | emd_17253_half_map_1.map | ||||||||||||
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注釈 | half map of TRF1-TeloNCP 4:1 complex | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: half map of TRF1-TeloNCP 4:1 complex
ファイル | emd_17253_half_map_2.map | ||||||||||||
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注釈 | half map of TRF1-TeloNCP 4:1 complex | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : TRF1core in complex with telomeric nucleosome
+超分子 #1: TRF1core in complex with telomeric nucleosome
+超分子 #2: Human telomeric nucleosome
+超分子 #3: Human TRF1core complex
+分子 #1: Human Histone H3
+分子 #2: Human histone H4
+分子 #3: Human Histone H2A
+分子 #4: Human histone H2B
+分子 #7: Human TRF1 protein
+分子 #5: Telomeric DNA G strand
+分子 #6: Telomeric DNA C strand
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 8 構成要素:
詳細: 25 mM HEPES-KOH pH 8.0, 150 mM KCl, 1 mM MgCl2, 1% glycerol, 0.01% Igepal CA-630, 1 mM DTT | |||||||||||||||||||||
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グリッド | モデル: C-flat-1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY | |||||||||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV / 詳細: Blot Force: -15 Blot Time: 2.5 s. |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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温度 | 最低: 78.0 K |
特殊光学系 | エネルギーフィルター - 名称: GIF Quantum LS / エネルギーフィルター - スリット幅: 20 eV |
ソフトウェア | 名称: EPU (ver. 2.13.0.3175REL) |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 24566 / 平均露光時間: 2.25 sec. / 平均電子線量: 56.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 105000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |