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基本情報
登録情報 | データベース: PDB / ID: 9qvm | |||||||||
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タイトル | Cryo-EM reconstruction of the NEDD1 anchor protein and CDK5RAP2 bound to the gamma-tubulin ring complex | |||||||||
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![]() | STRUCTURAL PROTEIN / Tubulin complex | |||||||||
機能・相同性 | ![]() microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / microtubule nucleator activity / positive regulation of norepinephrine uptake / polar microtubule / cellular response to cytochalasin B / interphase microtubule organizing center / bBAF complex / gamma-tubulin complex / npBAF complex ...microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / microtubule nucleator activity / positive regulation of norepinephrine uptake / polar microtubule / cellular response to cytochalasin B / interphase microtubule organizing center / bBAF complex / gamma-tubulin complex / npBAF complex / gamma-tubulin ring complex / nBAF complex / brahma complex / mitotic spindle microtubule / regulation of transepithelial transport / meiotic spindle organization / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / GBAF complex / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / protein localization to adherens junction / Gap junction degradation / regulation of G0 to G1 transition / Folding of actin by CCT/TriC / dense body / Cell-extracellular matrix interactions / postsynaptic actin cytoskeleton / Tat protein binding / microtubule nucleation / Prefoldin mediated transfer of substrate to CCT/TriC / RSC-type complex / regulation of nucleotide-excision repair / regulation of double-strand break repair / gamma-tubulin binding / adherens junction assembly / RHOF GTPase cycle / Adherens junctions interactions / apical protein localization / non-motile cilium / Sensory processing of sound by outer hair cells of the cochlea / tight junction / Interaction between L1 and Ankyrins / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / Sensory processing of sound by inner hair cells of the cochlea / positive regulation of T cell differentiation / regulation of norepinephrine uptake / apical junction complex / transporter regulator activity / positive regulation of double-strand break repair / maintenance of blood-brain barrier / nitric-oxide synthase binding / establishment or maintenance of cell polarity / cortical cytoskeleton / NuA4 histone acetyltransferase complex / positive regulation of stem cell population maintenance / cell leading edge / Regulation of MITF-M-dependent genes involved in pigmentation / pericentriolar material / Recycling pathway of L1 / microtubule organizing center / brush border / regulation of G1/S transition of mitotic cell cycle / mitotic sister chromatid segregation / kinesin binding / EPH-ephrin mediated repulsion of cells / negative regulation of cell differentiation / mitotic spindle assembly / regulation of synaptic vesicle endocytosis / RHO GTPases Activate WASPs and WAVEs / positive regulation of myoblast differentiation / RHO GTPases activate IQGAPs / single fertilization / regulation of protein localization to plasma membrane / positive regulation of double-strand break repair via homologous recombination / spindle assembly / cytoplasmic microtubule / cytoplasmic microtubule organization / cytoskeleton organization / EPHB-mediated forward signaling / centriole / substantia nigra development / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / axonogenesis / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / calyx of Held / AURKA Activation by TPX2 / nitric-oxide synthase regulator activity / condensed nuclear chromosome / mitotic spindle organization / meiotic cell cycle / DNA Damage Recognition in GG-NER / Translocation of SLC2A4 (GLUT4) to the plasma membrane / actin filament / adherens junction / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.8 Å | |||||||||
![]() | Munoz-Hernandez, H. / Xu, Y. / Wieczorek, M. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of the microtubule-anchoring factor NEDD1 bound to the γ-tubulin ring complex. 著者: Hugo Muñoz-Hernández / Yixin Xu / Aitor Pellicer Camardiel / Daniel Zhang / Allen Xue / Amol Aher / Ellie Walker / Florina Marxer / Tarun M Kapoor / Michal Wieczorek / ![]() ![]() 要旨: The γ-tubulin ring complex (γ-TuRC) is an essential multiprotein assembly that provides a template for microtubule nucleation. The γ-TuRC is recruited to microtubule-organizing centers (MTOCs) by ...The γ-tubulin ring complex (γ-TuRC) is an essential multiprotein assembly that provides a template for microtubule nucleation. The γ-TuRC is recruited to microtubule-organizing centers (MTOCs) by the evolutionarily conserved attachment factor NEDD1. However, the structural basis of the NEDD1-γ-TuRC interaction is not known. Here, we report cryo-EM structures of NEDD1 bound to the human γ-TuRC in the absence or presence of the activating factor CDK5RAP2. We found that the C-terminus of NEDD1 forms a tetrameric α-helical assembly that contacts the lumen of the γ-TuRC cone and orients its microtubule-binding domain away from the complex. The structure of the γ-TuRC simultaneously bound to NEDD1 and CDK5RAP2 reveals that both factors can associate with the "open" conformation of the complex. Our results show that NEDD1 does not induce substantial conformational changes in the γ-TuRC but suggest that anchoring of γ-TuRC-capped microtubules by NEDD1 would be structurally compatible with the significant conformational changes experienced by the γ-TuRC during microtubule nucleation. #1: ジャーナル: bioRxiv / 年: 2024 タイトル: Structure of the microtubule anchoring factor NEDD1 bound to the γ-tubulin ring complex. 著者: Hugo Muñoz-Hernández / Yixin Xu / Daniel Zhang / Allen Xue / Amol Aher / Aitor Pellicer Camardiel / Ellie Walker / Florina Marxer / Tarun M Kapoor / Michal Wieczorek / ![]() ![]() 要旨: The γ-tubulin ring complex (γ-TuRC) is an essential multiprotein assembly, in which γ-tubulin, GCP2-6, actin, MZT1 and MZT2 form an asymmetric cone-shaped structure that provides a template for ...The γ-tubulin ring complex (γ-TuRC) is an essential multiprotein assembly, in which γ-tubulin, GCP2-6, actin, MZT1 and MZT2 form an asymmetric cone-shaped structure that provides a template for microtubule nucleation. The γ-TuRC is recruited to microtubule organizing centers (MTOCs), such as centrosomes and pre-existing mitotic spindle microtubules, via the evolutionarily-conserved attachment factor NEDD1. NEDD1 contains an N-terminal WD40 domain that binds to microtubules, and a C-terminal domain that associates with the γ-TuRC. However, the structural basis of the NEDD1-γ-TuRC interaction is not known. Here, we report cryo-electron microscopy (cryo-EM) structures of NEDD1 bound to the human γ-TuRC in the absence or presence of the activating factor CDK5RAP2, which interacts with GCP2 to induce conformational changes in the γ-TuRC and promote its microtubule nucleating function. We found that the C-terminus of NEDD1 forms a tetrameric α-helical assembly that contacts the lumen of the γ-TuRC cone, is anchored to GCP4, 5 and 6 via protein modules consisting of MZT1 & GCP3 subcomplexes, and orients its microtubule-binding WD40 domains away from the complex. We biochemically tested our structural models by identifying NEDD1 mutants unable to pull-down -tubulin from cultured cells. The structure of the γ-TuRC simultaneously bound to NEDD1 and CDK5RAP2 reveals that both factors can associate with the "open" conformation of the complex. Our results show that NEDD1 does not induce conformational changes in the γ-TuRC, but suggest that anchoring of γ-TuRC-capped microtubules by NEDD1 would be structurally compatible with the significant conformational changes experienced by the γ-TuRC during microtubule nucleation. | |||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 2.6 MB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.9 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2 MB | 表示 | |
XML形式データ | ![]() | 327.1 KB | 表示 | |
CIF形式データ | ![]() | 578.8 KB | 表示 | |
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 | ![]() 53399MC ![]() 9qvnC M: このデータのモデリングに利用したマップデータ 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
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集合体
登録構造単位 | ![]()
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要素
-Gamma-tubulin complex component ... , 3種, 13分子 DFHrstuvBNKIJ
#1: タンパク質 | 分子量: 103710.102 Da / 分子数: 10 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #6: タンパク質 | 分子量: 76179.969 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #9: タンパク質 | | 分子量: 118467.547 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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-Mitotic-spindle organizing protein ... , 2種, 8分子 OPQRSTUp
#2: タンパク質 | 分子量: 8485.724 Da / 分子数: 7 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #10: タンパク質 | | 分子量: 16246.650 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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-タンパク質 , 6種, 27分子 WXVYZabcefghijklmndGCAEMLxw
#3: タンパク質 | 分子量: 72050.984 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質 | | 分子量: 41782.660 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #5: タンパク質 | 分子量: 52022.617 Da / 分子数: 14 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #7: タンパク質 | 分子量: 105765.719 Da / 分子数: 5 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #8: タンパク質 | | 分子量: 199732.516 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #11: タンパク質 | 分子量: 189905.844 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-詳細
Has protein modification | N |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Cryo-EM reconstruction of the NEDD1 and CDK5RAP2 bound to the gamma-tubulin ring complex タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドのタイプ: PELCO Ultrathin Carbon with Lacey Carbon |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE-PROPANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 130000 X / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 800 nm / アライメント法: COMA FREE |
試料ホルダ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 62 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
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解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 6.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 71778 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | Source name: AlphaFold / タイプ: in silico model | ||||||||||||||||||||||||||||||||||||
精密化 | 最高解像度: 6.8 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||||||||||||||
拘束条件 |
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