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データを開く
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基本情報
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タイトル | Structure of the human CCAN CENP-A alpha-satellite complex | ||||||||||||
![]() | Local resolution filtered cryosparc homogeneous refinement map | ||||||||||||
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![]() | Chromosome / kinetochore / cell division / centromere / CELL CYCLE | ||||||||||||
機能・相同性 | ![]() FANCM-MHF complex / Mis6-Sim4 complex / positive regulation of protein localization to kinetochore / centromere complex assembly / kinetochore organization / Fanconi anaemia nuclear complex / spindle attachment to meiosis I kinetochore / metaphase chromosome alignment / kinetochore binding / centromeric DNA binding ...FANCM-MHF complex / Mis6-Sim4 complex / positive regulation of protein localization to kinetochore / centromere complex assembly / kinetochore organization / Fanconi anaemia nuclear complex / spindle attachment to meiosis I kinetochore / metaphase chromosome alignment / kinetochore binding / centromeric DNA binding / sex differentiation / CENP-A containing chromatin assembly / resolution of meiotic recombination intermediates / chordate embryonic development / protein localization to chromosome, centromeric region / negative regulation of epithelial cell apoptotic process / kinetochore assembly / attachment of mitotic spindle microtubules to kinetochore / inner kinetochore / condensed chromosome, centromeric region / replication fork processing / establishment of mitotic spindle orientation / mitotic sister chromatid segregation / protein localization to CENP-A containing chromatin / CENP-A containing nucleosome / mitotic cytokinesis / chromosome, centromeric region / centriolar satellite / Replacement of protamines by nucleosomes in the male pronucleus / chromosome organization / arachidonate 15-lipoxygenase / arachidonate 15-lipoxygenase activity / Packaging Of Telomere Ends / lipoxygenase pathway / pericentric heterochromatin / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / arachidonate metabolic process / lipid oxidation / interstrand cross-link repair / 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 / Mitotic Prometaphase / positive regulation of epithelial cell proliferation / linoleic acid metabolic process / EML4 and NUDC in mitotic spindle formation / Meiotic synapsis / Inhibition of DNA recombination at telomere / nucleosomal DNA binding / Resolution of Sister Chromatid Cohesion / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / DNA methylation / NRIF signals cell death from the nucleus / HCMV Late Events / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / mitotic spindle organization / 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 / positive regulation of protein ubiquitination / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / chromosome segregation / RNA Polymerase I Promoter Escape / RHO GTPases Activate Formins / Transcriptional regulation by small RNAs / Fanconi Anemia Pathway / Transcriptional regulation of granulopoiesis / 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 / B-WICH complex positively regulates rRNA expression / PKR-mediated signaling / heterochromatin formation / RMTs methylate histone arginines / Pre-NOTCH Transcription and Translation / Metalloprotease DUBs / kinetochore / Activation of anterior HOX genes in hindbrain development during early embryogenesis / nuclear matrix / structural constituent of chromatin / Separation of Sister Chromatids / chromosome / UCH proteinases / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / actin cytoskeleton / Processing of DNA double-strand break ends 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: 12.0 Å | ||||||||||||
![]() | Yatskevich S / Muir KW / Bellini D / Zhang Z / Yang J / Tischer T / Predin M / Dendooven T / McLaughlin SH / Barford D | ||||||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Structure of the human inner kinetochore bound to a centromeric CENP-A nucleosome. 著者: Stanislau Yatskevich / Kyle W Muir / Dom Bellini / Ziguo Zhang / Jing Yang / Thomas Tischer / Masa Predin / Tom Dendooven / Stephen H McLaughlin / David Barford / ![]() 要旨: Kinetochores assemble onto specialized centromeric CENP-A (centromere protein A) nucleosomes (CENP-A) to mediate attachments between chromosomes and the mitotic spindle. We describe cryo-electron ...Kinetochores assemble onto specialized centromeric CENP-A (centromere protein A) nucleosomes (CENP-A) to mediate attachments between chromosomes and the mitotic spindle. We describe cryo-electron microscopy structures of the human inner kinetochore constitutive centromere associated network (CCAN) complex bound to CENP-A reconstituted onto α-satellite DNA. CCAN forms edge-on contacts with CENP-A, and a linker DNA segment of the α-satellite repeat emerges from the fully wrapped end of the nucleosome to thread through the central CENP-LN channel that tightly grips the DNA. The CENP-TWSX histone-fold module further augments DNA binding and partially wraps the linker DNA in a manner reminiscent of canonical nucleosomes. Our study suggests that the topological entrapment of the linker DNA by CCAN provides a robust mechanism by which kinetochores withstand both pushing and pulling forces exerted by the mitotic spindle. | ||||||||||||
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 | ![]() | 11.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 37.1 KB 37.1 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 6.2 KB | 表示 | ![]() |
画像 | ![]() | 39.3 KB | ||
Filedesc metadata | ![]() | 10.2 KB | ||
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 | ![]() 7ywxMC ![]() 7pb4C ![]() 7pb8C ![]() 7piiC ![]() 7pknC ![]() 7r5rC ![]() 7r5sC ![]() 7r5vC ![]() 7yyhC 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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注釈 | Local resolution filtered cryosparc homogeneous refinement map | ||||||||||||||||||||||||||||||||||||
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: 1.72 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
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試料の構成要素
+全体 : CCAN-CENP-A inner centromere complex
+超分子 #1: CCAN-CENP-A inner centromere complex
+分子 #1: Centromere protein H
+分子 #2: Centromere protein I
+分子 #3: Centromere protein K
+分子 #4: Centromere protein L
+分子 #5: Centromere protein M
+分子 #6: Centromere protein N
+分子 #7: Centromere protein O
+分子 #8: Centromere protein Q
+分子 #9: Centromere protein U
+分子 #10: Centromere protein P
+分子 #11: Centromere protein R
+分子 #12: Centromere protein T
+分子 #13: Centromere protein W
+分子 #14: Centromere protein S
+分子 #15: Centromere protein X
+分子 #18: Histone H3-like centromeric protein A
+分子 #19: Histone H4
+分子 #20: Histone H2A type 1-C
+分子 #21: Histone H2B type 1-C/E/F/G/I
+分子 #22: Centromere protein C
+分子 #16: DNA (171-MER)
+分子 #17: DNA (171-MER)
-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
緩衝液 | pH: 7.8 |
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凍結 | 凍結剤: ETHANE |
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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: 40.0 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: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.6 µm / 最小 デフォーカス(公称値): 1.2 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |