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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Telomeric mononucleosome | |||||||||
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![]() | Telomere / nucleosome / chromatin / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||
機能・相同性 | ![]() protein localization to CENP-A containing chromatin / CENP-A containing nucleosome / Replacement of protamines by nucleosomes in the male pronucleus / arachidonate 15-lipoxygenase / arachidonate 15-lipoxygenase activity / Packaging Of Telomere Ends / lipoxygenase pathway / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / telomere organization ...protein localization to CENP-A containing chromatin / CENP-A containing nucleosome / Replacement of protamines by nucleosomes in the male pronucleus / arachidonate 15-lipoxygenase / arachidonate 15-lipoxygenase activity / Packaging Of Telomere Ends / lipoxygenase pathway / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / telomere organization / arachidonate metabolic process / Chromatin modifying enzymes / lipid oxidation / Deposition of new CENPA-containing nucleosomes at the centromere / hepoxilin biosynthetic process / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / linoleic acid metabolic process / Meiotic synapsis / Inhibition of DNA recombination at telomere / nucleosomal DNA binding / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Interleukin-7 signaling / epigenetic regulation of gene expression / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Defective pyroptosis / Meiotic recombination / innate immune response in mucosa / DNA Damage/Telomere Stress Induced Senescence / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / Transcriptional regulation of granulopoiesis / HDMs demethylate histones / Formation of the beta-catenin:TCF transactivating complex / HCMV Early Events / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / G2/M DNA damage checkpoint / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / PKMTs methylate histone lysines / B-WICH complex positively regulates rRNA expression / heterochromatin formation / RMTs methylate histone arginines / Pre-NOTCH Transcription and Translation / Metalloprotease DUBs / Activation of anterior HOX genes in hindbrain development during early embryogenesis / structural constituent of chromatin / UCH proteinases / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / Factors involved in megakaryocyte development and platelet production / Processing of DNA double-strand break ends / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / E3 ubiquitin ligases ubiquitinate target proteins / Senescence-Associated Secretory Phenotype (SASP) / RUNX1 regulates transcription of genes involved in differentiation of HSCs / HATs acetylate histones / gene expression / antibacterial humoral response / Oxidative Stress Induced Senescence / defense response to Gram-negative bacterium / Estrogen-dependent gene expression / killing of cells of another organism / 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 / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / metal ion binding / cytosol 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.5 Å | |||||||||
![]() | Soman A | |||||||||
資金援助 | ![]()
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![]() | ![]() 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 | ![]() | 59.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 21 KB 21 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 9.2 KB | 表示 | ![]() |
画像 | ![]() | 58.4 KB | ||
マスクデータ | ![]() | 64 MB | ![]() | |
Filedesc metadata | ![]() | 6 KB | ||
その他 | ![]() ![]() | 49.7 MB 49.7 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7v90MC ![]() 7v96C ![]() 7v9cC ![]() 7v9jC ![]() 7v9kC ![]() 7v9sC ![]() 7va4C M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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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 | ![]() | ||||||||||||
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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_31806_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: #2
ファイル | emd_31806_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 |
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試料の構成要素
-全体 : Telomeric Mononucleosome
全体 | 名称: Telomeric Mononucleosome |
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要素 |
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-超分子 #1: Telomeric Mononucleosome
超分子 | 名称: Telomeric Mononucleosome / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Mononucleosome in open statae in a telomeric tetranucleosome |
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由来(天然) | 生物種: ![]() |
-分子 #1: Histone H3.1
分子 | 名称: Histone H3.1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 15.437167 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MARTKQTARK STGGKAPRKQ LATKAARKSA PATGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA VMALQEACEA YLVGLFEDTN LCAIHAKRVT IMPKDIQLAR RIRGERA UniProtKB: Histone H3.1 |
-分子 #2: Histone H4
分子 | 名称: Histone H4 / タイプ: protein_or_peptide / ID: 2 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 11.394426 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG UniProtKB: Arachidonate 15-lipoxygenase |
-分子 #3: Histone H2A type 1-B/E
分子 | 名称: Histone H2A type 1-B/E / タイプ: protein_or_peptide / ID: 3 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 14.165551 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSGRGKQGGK ARAKAKTRSS RAGLQFPVGR VHRLLRKGNY SERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIR NDEELNKLLG RVTIAQGGVL PNIQAVLLPK KTESHHKAKG K UniProtKB: Histone H2A type 1-B/E |
-分子 #4: Histone H2B type 1-K
分子 | 名称: Histone H2B type 1-K / タイプ: protein_or_peptide / ID: 4 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 11.151906 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: KKRKRSRKES YSVYVYKVLK QVHPDTGISS KAMGIMNSFV NDIFERIAGE ASRLAHYNKR STITSREIQT AVRLLLPGEL AKHAVSEGT KAVTKYTSAK UniProtKB: Histone H2B type 1-K |
-分子 #5: DNA (145-mer)
分子 | 名称: DNA (145-mer) / タイプ: dna / ID: 5 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 46.105293 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) |
-分子 #6: DNA (145-mer)
分子 | 名称: DNA (145-mer) / タイプ: dna / ID: 6 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 43.399848 KDa |
配列 | 文字列: (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) ...文字列: (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) |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 1 mg/mL |
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緩衝液 | pH: 6 |
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 400 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 60 sec. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |