+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 1xi5 | ||||||
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タイトル | Clathrin D6 coat with auxilin J-domain | ||||||
要素 |
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キーワード | ENDOCYTOSIS/EXOCYTOSIS / clathrin / alpha-zig-zag / beta-propeller / ENDOCYTOSIS-EXOCYTOSIS COMPLEX | ||||||
機能・相同性 | 機能・相同性情報 regulation of clathrin coat assembly / Retrograde neurotrophin signalling / Recycling pathway of L1 / WNT5A-dependent internalization of FZD4 / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / Gap junction degradation / Formation of annular gap junctions / Golgi Associated Vesicle Biogenesis / RHOU GTPase cycle ...regulation of clathrin coat assembly / Retrograde neurotrophin signalling / Recycling pathway of L1 / WNT5A-dependent internalization of FZD4 / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / Gap junction degradation / Formation of annular gap junctions / Golgi Associated Vesicle Biogenesis / RHOU GTPase cycle / RHOV GTPase cycle / clathrin coat of trans-Golgi network vesicle / Lysosome Vesicle Biogenesis / clathrin light chain binding / synaptic vesicle recycling / clathrin complex / negative regulation of hyaluronan biosynthetic process / MHC class II antigen presentation / VLDLR internalisation and degradation / clathrin heavy chain binding / clathrin coat of coated pit / synaptic vesicle uncoating / Cargo recognition for clathrin-mediated endocytosis / clathrin coat disassembly / clathrin coat assembly / clathrin-coated endocytic vesicle / 加水分解酵素; エステル加水分解酵素; 1価のリン酸エステル加水分解酵素 / membrane coat / Clathrin-mediated endocytosis / clathrin-dependent endocytosis / arrestin family protein binding / clathrin-coated vesicle / clathrin binding / intracellular transport / heat shock protein binding / receptor-mediated endocytosis / protein tyrosine phosphatase activity / intracellular protein transport / SH3 domain binding / autophagy / spindle / disordered domain specific binding / melanosome / presynapse / mitotic cell cycle / vesicle / molecular adaptor activity / postsynaptic density / protein domain specific binding / cell division / intracellular membrane-bounded organelle / structural molecule activity / mitochondrion / identical protein binding / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | 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: 12 Å | ||||||
データ登録者 | Fotin, A. / Cheng, Y. / Grigorieff, N. / Walz, T. / Harrison, S.C. / Kirchhausen, T. | ||||||
引用 | ジャーナル: Nature / 年: 2004 タイトル: Structure of an auxilin-bound clathrin coat and its implications for the mechanism of uncoating. 著者: Alexander Fotin / Yifan Cheng / Nikolaus Grigorieff / Thomas Walz / Stephen C Harrison / Tomas Kirchhausen / 要旨: Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the ...Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the uncoating reaction, and is guided to appropriate locations on clathrin lattices by the J-domain-containing co-chaperone molecule auxilin. This raises the question of how a local event such as ATP hydrolysis by Hsc70 can catalyse a global disassembly. Here, we have used electron cryomicroscopy to determine 12-A-resolution structures of in-vitro-assembled clathrin coats in association with a carboxy-terminal fragment of auxilin that contains both the clathrin-binding region and the J domain. We have located the auxilin fragment by computing differences between these structures and those lacking auxilin (described in an accompanying paper). Auxilin binds within the clathrin lattice near contacts between an inward-projecting C-terminal helical tripod and the crossing of two 'ankle' segments; it also contacts the terminal domain of yet another clathrin 'leg'. It therefore recruits Hsc70 to the neighbourhood of a set of critical interactions. Auxilin binding produces a local change in heavy-chain contacts, creating a detectable global distortion of the clathrin coat. We propose a mechanism by which local destabilization of the lattice promotes general uncoating. #1: ジャーナル: Nature / 年: 2004 タイトル: Molecular model for a complete clathrin lattice from electron cryomicroscopy. 著者: Alexander Fotin / Yifan Cheng / Piotr Sliz / Nikolaus Grigorieff / Stephen C Harrison / Tomas Kirchhausen / Thomas Walz / 要旨: Clathrin-coated vesicles are important vehicles of membrane traffic in cells. We report the structure of a clathrin lattice at subnanometre resolution, obtained from electron cryomicroscopy of coats ...Clathrin-coated vesicles are important vehicles of membrane traffic in cells. We report the structure of a clathrin lattice at subnanometre resolution, obtained from electron cryomicroscopy of coats assembled in vitro. We trace most of the 1,675-residue clathrin heavy chain by fitting known crystal structures of two segments, and homology models of the rest, into the electron microscopy density map. We also define the position of the central helical segment of the light chain. A helical tripod, the carboxy-terminal parts of three heavy chains, projects inward from the vertex of each three-legged clathrin triskelion, linking that vertex to 'ankles' of triskelions centred two vertices away. Analysis of coats with distinct diameters shows an invariant pattern of contacts in the neighbourhood of each vertex, with more variable interactions along the extended parts of the triskelion 'legs'. These invariant local interactions appear to stabilize the lattice, allowing assembly and uncoating to be controlled by events at a few specific sites. | ||||||
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 | 1xi5.cif.gz | 462.3 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb1xi5.ent.gz | 285 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 1xi5.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 | 1xi5_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 1xi5_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 1xi5_validation.xml.gz | 164.2 KB | 表示 | |
CIF形式データ | 1xi5_validation.cif.gz | 251 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/xi/1xi5 ftp://data.pdbj.org/pub/pdb/validation_reports/xi/1xi5 | 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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対称性 | 点対称性: (ヘルマン・モーガン記号: 622 シェーンフリース記号: D6 (2回x6回 2面回転対称)) |
-要素
#1: 抗体 | 分子量: 187145.125 Da / 分子数: 9 / 断片: residues 1-1630 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 組織: brain / 参照: UniProt: P49951 #2: タンパク質 | 分子量: 13383.562 Da / 分子数: 9 / 断片: residues 797-910 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 組織: brain / 参照: UniProt: Q27974 |
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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 |
-試料調製
構成要素 | 名称: CLATHRIN D6 COATS WITH BOUND AUXILIN(547-910) / タイプ: COMPLEX 詳細: COATS ASSEMBLED WITH LIGHT_CHAIN_FREE CLATHRIN AND AP-2. AUXILIN(547-910) THEN ADDED IN EXCESS |
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緩衝液 | 名称: 20MM HEPES / pH: 7 / 詳細: 20MM HEPES |
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: HOLEY CARBON |
急速凍結 | 装置: FEI VITROBOT MARK I / 凍結剤: ETHANE / 詳細: VITRIFIED |
-電子顕微鏡撮影
実験機器 | モデル: Tecnai F20 / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TECNAI F20 / 詳細: LOW DOSE |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 50000 X / 倍率(補正後): 51160 X / 最大 デフォーカス(公称値): 5000 nm / 最小 デフォーカス(公称値): 2000 nm / Cs: 2 mm |
試料ホルダ | 温度: 93 K / 傾斜角・最大: 0 ° / 傾斜角・最小: 0 ° |
撮影 | 電子線照射量: 20 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM |
画像スキャン | デジタル画像の数: 190 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 相対比: 1 |
-解析
EMソフトウェア |
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CTF補正 | 詳細: CTFTILT, FREALIGN V.6.07 | ||||||||||||||||||||||||||||
対称性 | 点対称性: D6 (2回x6回 2面回転対称) | ||||||||||||||||||||||||||||
3次元再構成 | 手法: FOURIER SPACE RECONSTRUCTION / 解像度: 12 Å / 粒子像の数: 900 / ピクセルサイズ(実測値): 2.8 Å 詳細: The coordinates contain only a CA trace. Please see paper(Nature paper reference) for further details. 対称性のタイプ: POINT | ||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL / Target criteria: DENSITY CORRELATION / 詳細: METHOD--VISUAL REFINEMENT PROTOCOL--MAVE | ||||||||||||||||||||||||||||
原子モデル構築 |
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精密化ステップ | サイクル: LAST
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