+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-31810 | |||||||||
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タイトル | Telomeric Dinucleosome | |||||||||
マップデータ | ||||||||||
試料 |
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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 / epigenetic regulation of gene expression / 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 ...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 / epigenetic regulation of gene expression / 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 / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere organization / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / DNAメチル化 / Condensation of Prophase Chromosomes / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / innate immune response in mucosa / PRC2 methylates histones and DNA / Defective pyroptosis / 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 / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / G2/M DNA damage checkpoint / HDMs demethylate histones / DNA Damage/Telomere Stress Induced Senescence / Metalloprotease DUBs / PKMTs methylate histone lysines / RMTs methylate histone arginines / 遺伝的組換え / Pre-NOTCH Transcription and Translation / nucleosome assembly / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / UCH proteinases / ヌクレオソーム / antimicrobial humoral immune response mediated by antimicrobial peptide / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / RUNX1 regulates transcription of genes involved in differentiation of HSCs / 遺伝子発現 / chromatin organization / Factors involved in megakaryocyte development and platelet production / Processing of DNA double-strand break ends / HATs acetylate histones / antibacterial humoral response / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / killing of cells of another organism / Estrogen-dependent gene expression / defense response to Gram-negative bacterium / 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 / extracellular space / RNA binding / extracellular exosome / extracellular region / 核質 / 生体膜 / 細胞核 / 細胞質基質 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: 3.92 Å | |||||||||
データ登録者 | Soman A | |||||||||
資金援助 | シンガポール, 1件
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引用 | ジャーナル: Nature / 年: 2022 タイトル: Columnar structure of human telomeric chromatin. 著者: Aghil Soman / Sook Yi Wong / Nikolay Korolev / Wahyu Surya / Simon Lattmann / Vinod K Vogirala / Qinming Chen / Nikolay V Berezhnoy / John van Noort / Daniela Rhodes / Lars Nordenskiöld / 要旨: Telomeres, the ends of eukaryotic chromosomes, play pivotal parts in ageing and cancer and are targets of DNA damage and the DNA damage response. Little is known about the structure of telomeric ...Telomeres, the ends of eukaryotic chromosomes, play pivotal parts in ageing and cancer and are targets of DNA damage and the DNA damage response. Little is known about the structure of telomeric chromatin at the molecular level. Here we used negative stain electron microscopy and single-molecule magnetic tweezers to characterize 3-kbp-long telomeric chromatin fibres. We also obtained the cryogenic electron microscopy structure of the condensed telomeric tetranucleosome and its dinucleosome unit. The structure displayed close stacking of nucleosomes with a columnar arrangement, and an unusually short nucleosome repeat length that comprised about 132 bp DNA wound in a continuous superhelix around histone octamers. This columnar structure is primarily stabilized by the H2A carboxy-terminal and histone amino-terminal tails in a synergistic manner. The columnar conformation results in exposure of the DNA helix, which may make it susceptible to both DNA damage and the DNA damage response. The conformation also exists in an alternative open state, in which one nucleosome is unstacked and flipped out, which exposes the acidic patch of the histone surface. The structural features revealed in this work suggest mechanisms by which protein factors involved in telomere maintenance can access telomeric chromatin in its compact form. | |||||||||
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_31810.map.gz | 59 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-31810-v30.xml emd-31810.xml | 20.2 KB 20.2 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_31810_fsc.xml | 9.2 KB | 表示 | FSCデータファイル |
画像 | emd_31810.png | 30.3 KB | ||
マスクデータ | emd_31810_msk_1.map | 64 MB | マスクマップ | |
その他 | emd_31810_half_map_1.map.gz emd_31810_half_map_2.map.gz | 48.5 MB 48.5 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-31810 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31810 | HTTPS FTP |
-関連構造データ
関連構造データ | 7v96MC 7v90C 7v9cC 7v9jC 7v9kC 7v9sC 7va4C C: 同じ文献を引用 (文献) M: このマップから作成された原子モデル |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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_31810.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 0.858 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
-マスク #1
ファイル | emd_31810_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_31810_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_31810_half_map_2.map | ||||||||||||
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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 : Telomeric Dinucleosome
全体 | 名称: Telomeric Dinucleosome |
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要素 |
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-超分子 #1: Telomeric Dinucleosome
超分子 | 名称: Telomeric Dinucleosome / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
組換発現 | 生物種: Escherichia coli (大腸菌) |
-分子 #1: DNA (275-mer)
分子 | 名称: DNA (275-mer) / タイプ: dna / ID: 1 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 87.465484 KDa |
配列 | 文字列: (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) (DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG) (DT) (DT)(DA)(DG)(DG)(DG) ...文字列: (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) (DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG) (DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA) (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA) (DG)(DG)(DG)(DT)(DT)(DA)(DG) (DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) (DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA) (DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG) (DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG) (DG)(DG)(DT)(DT)(DA) (DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT) (DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG) (DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA) (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA) (DG) (DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) (DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA) (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT) (DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG) (DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) (DA) (DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA) (DG)(DG) (DG)(DT)(DT)(DA)(DG)(DG)(DG) (DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT) |
-分子 #2: DNA (275-mer)
分子 | 名称: DNA (275-mer) / タイプ: dna / ID: 2 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 82.365664 KDa |
配列 | 文字列: (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) (DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC) (DC) (DC)(DT)(DA)(DA)(DC) ...文字列: (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) (DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC) (DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT) (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT) (DA)(DA)(DC)(DC)(DC)(DT)(DA) (DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) (DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT) (DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC) (DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA) (DA)(DC)(DC)(DC)(DT) (DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC) (DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC) (DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT) (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT) (DA) (DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) (DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT) (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC) (DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT)(DA) (DA)(DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) (DT) (DA)(DA)(DC)(DC)(DC)(DT)(DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC)(DT) (DA)(DA) (DC)(DC)(DC)(DT)(DA)(DA)(DC) (DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC) |
-分子 #3: Histone H3.1
分子 | 名称: Histone H3.1 / タイプ: protein_or_peptide / ID: 3 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 15.437167 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MARTKQTARK STGGKAPRKQ LATKAARKSA PATGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA VMALQEACEA YLVGLFEDTN LCAIHAKRVT IMPKDIQLAR RIRGERA |
-分子 #4: Histone H4
分子 | 名称: Histone H4 / タイプ: protein_or_peptide / ID: 4 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 11.394426 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG |
-分子 #5: Histone H2A type 1-B/E
分子 | 名称: Histone H2A type 1-B/E / タイプ: protein_or_peptide / ID: 5 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 14.165551 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MSGRGKQGGK ARAKAKTRSS RAGLQFPVGR VHRLLRKGNY SERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIR NDEELNKLLG RVTIAQGGVL PNIQAVLLPK KTESHHKAKG K |
-分子 #6: Histone H2B type 1-K
分子 | 名称: Histone H2B type 1-K / タイプ: protein_or_peptide / ID: 6 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 11.151906 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: KKRKRSRKES YSVYVYKVLK QVHPDTGISS KAMGIMNSFV NDIFERIAGE ASRLAHYNKR STITSREIQT AVRLLLPGEL AKHAVSEGT KAVTKYTSAK |
-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
濃度 | 1 mg/mL |
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緩衝液 | pH: 6 |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELDBright-field microscopy |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 50.0 e/Å2 |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |