+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-2912 | |||||||||
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タイトル | Cryo-electron tomograms of EB1 conjugated to gold nanoparticles, in interaction with growing microtubule ends | |||||||||
マップデータ | Cryo-electron tomogram of EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with a microtubule growing end | |||||||||
試料 |
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キーワード | End-binding one protein / tubulin / microtubule / functionalized gold nanoparticles / GTP-cap / GTP-hydrolysis | |||||||||
機能・相同性 | 機能・相同性情報 protein localization to mitotic spindle / protein localization to astral microtubule / cortical microtubule cytoskeleton / mitotic spindle astral microtubule end / protein localization to microtubule / mitotic spindle microtubule / microtubule plus-end / cell projection membrane / attachment of mitotic spindle microtubules to kinetochore / microtubule plus-end binding ...protein localization to mitotic spindle / protein localization to astral microtubule / cortical microtubule cytoskeleton / mitotic spindle astral microtubule end / protein localization to microtubule / mitotic spindle microtubule / microtubule plus-end / cell projection membrane / attachment of mitotic spindle microtubules to kinetochore / microtubule plus-end binding / non-motile cilium assembly / microtubule bundle formation / protein localization to centrosome / microtubule organizing center / negative regulation of microtubule polymerization / mitotic spindle pole / cytoplasmic microtubule / establishment of mitotic spindle orientation / microtubule polymerization / microtubule-based process / spindle midzone / spindle assembly / regulation of microtubule polymerization or depolymerization / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / positive regulation of microtubule polymerization / Anchoring of the basal body to the plasma membrane / Resolution of Sister Chromatid Cohesion / AURKA Activation by TPX2 / ciliary basal body / RHO GTPases Activate Formins / structural constituent of cytoskeleton / microtubule cytoskeleton organization / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / Regulation of PLK1 Activity at G2/M Transition / protein localization / cell migration / mitotic cell cycle / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / microtubule / hydrolase activity / cadherin binding / cell division / focal adhesion / GTPase activity / centrosome / GTP binding / protein kinase binding / Golgi apparatus / RNA binding / identical protein binding / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / Sus scrofa (ブタ) | |||||||||
手法 | 電子線トモグラフィー法 / クライオ電子顕微鏡法 / ネガティブ染色法 | |||||||||
データ登録者 | Guesdon A / Bazile F / Buey RM / Mohan R / Monier S / Angevin M / Heichette C / Tampe R / Duchesne L / Akhmanova A ...Guesdon A / Bazile F / Buey RM / Mohan R / Monier S / Angevin M / Heichette C / Tampe R / Duchesne L / Akhmanova A / Steinmetz MO / Chretien D | |||||||||
引用 | ジャーナル: Nat Cell Biol / 年: 2016 タイトル: EB1 interacts with outwardly curved and straight regions of the microtubule lattice. 著者: Audrey Guesdon / Franck Bazile / Rubén M Buey / Renu Mohan / Solange Monier / Ruddi Rodríguez García / Morgane Angevin / Claire Heichette / Ralph Wieneke / Robert Tampé / Laurence ...著者: Audrey Guesdon / Franck Bazile / Rubén M Buey / Renu Mohan / Solange Monier / Ruddi Rodríguez García / Morgane Angevin / Claire Heichette / Ralph Wieneke / Robert Tampé / Laurence Duchesne / Anna Akhmanova / Michel O Steinmetz / Denis Chrétien / 要旨: EB1 is a microtubule plus-end tracking protein that recognizes GTP-tubulin dimers in microtubules and thus represents a unique probe to investigate the architecture of the GTP cap of growing ...EB1 is a microtubule plus-end tracking protein that recognizes GTP-tubulin dimers in microtubules and thus represents a unique probe to investigate the architecture of the GTP cap of growing microtubule ends. Here, we conjugated EB1 to gold nanoparticles (EB1-gold) and imaged by cryo-electron tomography its interaction with dynamic microtubules assembled in vitro from purified tubulin. EB1-gold forms comets at the ends of microtubules assembled in the presence of GTP, and interacts with the outer surface of curved and straight tubulin sheets as well as closed regions of the microtubule lattice. Microtubules assembled in the presence of GTP, different GTP analogues or cell extracts display similarly curved sheets at their growing ends, which gradually straighten as their protofilament number increases until they close into a tube. Together, our data provide unique structural information on the interaction of EB1 with growing microtubule ends. They further offer insights into the conformational changes that tubulin dimers undergo during microtubule assembly and the architecture of the GTP-cap region. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_2912.map.gz | 16.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-2912-v30.xml emd-2912.xml | 14.2 KB 14.2 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_2912.tif | 86.5 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-2912 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-2912 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_2912_validation.pdf.gz | 158.7 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_2912_full_validation.pdf.gz | 157.8 KB | 表示 | |
XML形式データ | emd_2912_validation.xml.gz | 3.9 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-2912 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-2912 | 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_2912.map.gz / 形式: CCP4 / 大きさ: 20.9 MB / タイプ: IMAGE STORED AS SIGNED INTEGER (2 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Cryo-electron tomogram of EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with a microtubule growing end | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 これらの図は立方格子座標系で作成されたものです | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 8.8 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with ...
全体 | 名称: EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with a microtubule growing end |
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要素 |
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-超分子 #1000: EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with ...
超分子 | 名称: EB1 conjugated to 6.5 nm gold nanoparticles, in interaction with a microtubule growing end タイプ: sample / ID: 1000 / 詳細: The sample was monodisperse 集合状態: EB1: homodimer. Microtubule: polymer of tubulin. Number unique components: 3 |
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-分子 #1: End-binding protein one
分子 | 名称: End-binding protein one / タイプ: protein_or_peptide / ID: 1 / Name.synonym: EB1 詳細: EB1 with a haxa-histidine tag inserted into its C-terminal extremity was conjugated to 6.5 nanometer gold nanoparticles functionalized with tris-NiNTA groups 集合状態: Homodimer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human / 細胞中の位置: Cytoplasm |
分子量 | 実験値: 30 KDa / 理論値: 30 KDa |
組換発現 | 生物種: Escherichia coli BL21 (大腸菌) / 組換プラスミド: pET-3D |
配列 | UniProtKB: Microtubule-associated protein RP/EB family member 1 |
-分子 #2: Tubulin alpha chain
分子 | 名称: Tubulin alpha chain / タイプ: protein_or_peptide / ID: 2 詳細: Heterodimer alpha-beta polymerized into microtubules 組換発現: No / データベース: NCBI |
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由来(天然) | 生物種: Sus scrofa (ブタ) / 別称: Pig / 組織: Brain / 細胞: Neurons / 細胞中の位置: Cytoplasm |
分子量 | 理論値: 500.68 KDa |
配列 | UniProtKB: Tubulin alpha-1A chain / GO: microtubule-based process / InterPro: Tubulin |
-分子 #3: Tubulin beta chain
分子 | 名称: Tubulin beta chain / タイプ: protein_or_peptide / ID: 3 詳細: Heterodimer alpha-beta polymerized into microtubules 組換発現: No / データベース: NCBI |
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由来(天然) | 生物種: Sus scrofa (ブタ) / 別称: Pig / 組織: Brain / 細胞: Neurons / 細胞中の位置: Cytoplasm |
分子量 | 理論値: 498.61 KDa |
配列 | UniProtKB: Tubulin beta chain / GO: microtubule-based process / InterPro: Tubulin, conserved site |
-実験情報
-構造解析
手法 | ネガティブ染色法, クライオ電子顕微鏡法 |
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解析 | 電子線トモグラフィー法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 6.8 詳細: 80 mM Pipes, 1 mM MgCl2, 50 mM KCl, 1mM EGTA, 1 mM GTP |
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染色 | タイプ: NEGATIVE / 詳細: Vitrified specimen. |
グリッド | 詳細: 300 mesh grid coated with home-made holey-carbon film. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 93 K / 装置: HOMEMADE PLUNGER 詳細: Specimen maintained at 35 degrees celcius in saturated humidity conditions before vitrification. Timed resolved state: Specimen frozen ~3 min after the beginning of assembly. 手法: Assembly in a test tube at 35 degrees celcius for ~3 min, deposit of a 4 microliter onto the grid, blotting for ~2 seconds and rapid plunging into liquid ethane. |
-電子顕微鏡法
顕微鏡 | FEI TECNAI 20 |
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温度 | 平均: 174 K |
アライメント法 | Legacy - 非点収差: Astigmatism corrected at high magnification |
詳細 | Tilt serie started from zero. Saxton acquisition scheme with 2 degrees increments. 75 images acquired in post-tracking mode. Tilt series between -56.44 and 62.43 degrees after correction.Camera used in binning mode 2, 0.88 nm pixel size. |
日付 | 2012年4月4日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: GATAN ULTRASCAN 1000 (2k x 2k) 実像数: 75 / 平均電子線量: 0.3 e/Å2 詳細: Camera used in binning mode 2, at a final pixel size of 0.88 nm. ビット/ピクセル: 16 |
電子線 | 加速電圧: 200 kV / 電子線源: LAB6 |
電子光学系 | 倍率(補正後): 31818 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 1.5 µm / 最小 デフォーカス(公称値): 1.5 µm / 倍率(公称値): 25000 |
試料ステージ | 試料ホルダー: Liquid nitrogen cooled / 試料ホルダーモデル: GATAN LIQUID NITROGEN / Tilt series - Axis1 - Min angle: -60 ° / Tilt series - Axis1 - Max angle: 60 ° / Tilt series - Axis1 - Angle increment: 2 ° |
-画像解析
詳細 | 3D reconstruction performed using eTomo from IMOD software. Reconstruction by backprojection, using a Radial filter cutoffof 0.15 and a faloff of 0.05. |
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最終 再構成 | アルゴリズム: OTHER / ソフトウェア - 名称: eTomo, from, IMOD, software 詳細: Backprojection using a radial filter cutoff of 0.15 and a faloff of 0.05. 使用した粒子像数: 75 |