+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 5m50 | |||||||||||||||||||||
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タイトル | Mechanism of microtubule minus-end recognition and protection by CAMSAP proteins | |||||||||||||||||||||
要素 |
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キーワード | STRUCTURAL PROTEIN / CAMSAP CKK Microtubule Tubulin | |||||||||||||||||||||
機能・相同性 | 機能・相同性情報 regulation of organelle organization / zonula adherens maintenance / microtubule minus-end / protein transport along microtubule / microtubule minus-end binding / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Intraflagellar transport / Carboxyterminal post-translational modifications of tubulin / Sealing of the nuclear envelope (NE) by ESCRT-III ...regulation of organelle organization / zonula adherens maintenance / microtubule minus-end / protein transport along microtubule / microtubule minus-end binding / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Intraflagellar transport / Carboxyterminal post-translational modifications of tubulin / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / microtubule anchoring / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / COPI-dependent Golgi-to-ER retrograde traffic / COPI-independent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / RHO GTPases activate IQGAPs / regulation of Golgi organization / RHO GTPases Activate Formins / establishment or maintenance of microtubule cytoskeleton polarity / MHC class II antigen presentation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / cilium movement / Aggrephagy / epithelial cell-cell adhesion / zonula adherens / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Recruitment of NuMA to mitotic centrosomes / Regulation of PLK1 Activity at G2/M Transition / Hedgehog 'off' state / negative regulation of microtubule depolymerization / establishment of epithelial cell apical/basal polarity / motile cilium / positive regulation of axon guidance / embryo development ending in birth or egg hatching / regulation of focal adhesion assembly / spectrin binding / regulation of microtubule polymerization / axoneme / microtubule-based process / regulation of microtubule cytoskeleton organization / cytoplasmic microtubule organization / regulation of cell migration / ciliary basal body / structural constituent of cytoskeleton / microtubule cytoskeleton organization / microtubule cytoskeleton / neuron projection development / actin filament binding / mitotic cell cycle / nervous system development / 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 / in utero embryonic development / microtubule / calmodulin binding / hydrolase activity / protein heterodimerization activity / GTPase activity / centrosome / GTP binding / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||
生物種 | Mus musculus (ハツカネズミ) Bos taurus (ウシ) | |||||||||||||||||||||
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: 5.3 Å | |||||||||||||||||||||
データ登録者 | Akhmanova, A. / Moores, C.A. / Baldus, M. / Steinmetz, M.O. / Topf, M. / Roberts, A.J. / Grant, B.J. / Scarabelli, G. / Joseph, A.-P. / van Hooff, J.J.E. ...Akhmanova, A. / Moores, C.A. / Baldus, M. / Steinmetz, M.O. / Topf, M. / Roberts, A.J. / Grant, B.J. / Scarabelli, G. / Joseph, A.-P. / van Hooff, J.J.E. / Houben, K. / Hua, S. / Luo, Y. / Stangier, M.M. / Jiang, K. / Atherton, J. | |||||||||||||||||||||
資金援助 | 英国, 米国, オランダ, スイス, 6件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2017 タイトル: A structural model for microtubule minus-end recognition and protection by CAMSAP proteins. 著者: Joseph Atherton / Kai Jiang / Marcel M Stangier / Yanzhang Luo / Shasha Hua / Klaartje Houben / Jolien J E van Hooff / Agnel-Praveen Joseph / Guido Scarabelli / Barry J Grant / Anthony J ...著者: Joseph Atherton / Kai Jiang / Marcel M Stangier / Yanzhang Luo / Shasha Hua / Klaartje Houben / Jolien J E van Hooff / Agnel-Praveen Joseph / Guido Scarabelli / Barry J Grant / Anthony J Roberts / Maya Topf / Michel O Steinmetz / Marc Baldus / Carolyn A Moores / Anna Akhmanova / 要旨: CAMSAP and Patronin family members regulate microtubule minus-end stability and localization and thus organize noncentrosomal microtubule networks, which are essential for cell division, polarization ...CAMSAP and Patronin family members regulate microtubule minus-end stability and localization and thus organize noncentrosomal microtubule networks, which are essential for cell division, polarization and differentiation. Here, we found that the CAMSAP C-terminal CKK domain is widely present among eukaryotes and autonomously recognizes microtubule minus ends. Through a combination of structural approaches, we uncovered how mammalian CKK binds between two tubulin dimers at the interprotofilament interface on the outer microtubule surface. In vitro reconstitution assays combined with high-resolution fluorescence microscopy and cryo-electron tomography suggested that CKK preferentially associates with the transition zone between curved protofilaments and the regular microtubule lattice. We propose that minus-end-specific features of the interprotofilament interface at this site serve as the basis for CKK's minus-end preference. The steric clash between microtubule-bound CKK and kinesin motors explains how CKK protects microtubule minus ends against kinesin-13-induced depolymerization and thus controls the stability of free microtubule minus ends. | |||||||||||||||||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 5m50.cif.gz | 335.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb5m50.ent.gz | 267.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 5m50.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 5m50_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 5m50_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 5m50_validation.xml.gz | 53.4 KB | 表示 | |
CIF形式データ | 5m50_validation.cif.gz | 79 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/m5/5m50 ftp://data.pdbj.org/pub/pdb/validation_reports/m5/5m50 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-タンパク質 , 3種, 5分子 DAEBC
#1: タンパク質 | 分子量: 48769.988 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: F2Z4C1, UniProt: P81947*PLUS #2: タンパク質 | 分子量: 47940.945 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: Q6B856 #3: タンパク質 | | 分子量: 13431.391 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Camsap3, Kiaa1543 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q80VC9 |
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-非ポリマー , 5種, 16分子
#4: 化合物 | #5: 化合物 | #6: 化合物 | #7: 化合物 | #8: 水 | ChemComp-HOH / | |
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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: FILAMENT / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 |
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由来(天然) |
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由来(組換発現) | 生物種: Escherichia coli (大腸菌) | ||||||||||||||||||||||||
緩衝液 | pH: 6.8 / 詳細: BRB80 | ||||||||||||||||||||||||
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: 13pf Microtubules | ||||||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのタイプ: C-flat-2/2 | ||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Tecnai Polara / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI POLARA 300 |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 25 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: DIRECT ELECTRON DE-20 (5k x 3k) 詳細: 25e-/A2 used in final reconstuctions |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.11.1_2575: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 5.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 6530 詳細: Gold-standard noise substitution test used to asses for over fitting (Chen et al., 2013) 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER | ||||||||||||||||||||||||
拘束条件 |
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