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基本情報
登録情報 | データベース: PDB / ID: 3zee | |||||||||
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タイトル | Electron cyro-microscopy helical reconstruction of Par-3 N terminal domain | |||||||||
![]() | PARTITIONING DEFECTIVE 3 HOMOLOG | |||||||||
![]() | CELL CYCLE | |||||||||
機能・相同性 | ![]() Tight junction interactions / regulation of actin filament-based process / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / internode region of axon / regulation of cellular localization / PAR polarity complex / apical constriction / establishment of centrosome localization / establishment of epithelial cell polarity / positive regulation of myelination ...Tight junction interactions / regulation of actin filament-based process / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / internode region of axon / regulation of cellular localization / PAR polarity complex / apical constriction / establishment of centrosome localization / establishment of epithelial cell polarity / positive regulation of myelination / lateral loop / bicellular tight junction assembly / Schmidt-Lanterman incisure / myelination in peripheral nervous system / establishment or maintenance of epithelial cell apical/basal polarity / phosphatidylinositol-3-phosphate binding / protein targeting to membrane / wound healing, spreading of cells / apical junction complex / centrosome localization / establishment of cell polarity / negative regulation of peptidyl-threonine phosphorylation / phosphatidylinositol-3,4,5-trisphosphate binding / positive regulation of receptor internalization / bicellular tight junction / axonal growth cone / endomembrane system / phosphatidylinositol-4,5-bisphosphate binding / phosphatidylinositol binding / adherens junction / microtubule cytoskeleton organization / spindle / cell-cell junction / protein localization / apical part of cell / cell junction / cell cortex / protein phosphatase binding / cell adhesion / apical plasma membrane / cell division / neuronal cell body / protein-containing complex / identical protein binding / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 電子顕微鏡法 / らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 6.1 Å | |||||||||
![]() | Zhang, Y. / Wang, W. / Chen, J. / Zhang, K. / Gao, F. / Gong, W. / Zhang, M. / Sun, F. / Feng, W. | |||||||||
![]() | ![]() タイトル: Structural insights into the intrinsic self-assembly of Par-3 N-terminal domain. 著者: Yan Zhang / Wenjuan Wang / Jia Chen / Kai Zhang / Feng Gao / Bingquan Gao / Shuai Zhang / Mingdong Dong / Flemming Besenbacher / Weimin Gong / Mingjie Zhang / Fei Sun / Wei Feng / ![]() 要旨: Par-3, the central organizer of the Par-3/Par-6/atypical protein kinase C complex, is a multimodular scaffold protein that is essential for cell polarity establishment and maintenance. The N-terminal ...Par-3, the central organizer of the Par-3/Par-6/atypical protein kinase C complex, is a multimodular scaffold protein that is essential for cell polarity establishment and maintenance. The N-terminal domain (NTD) of Par-3 is capable of self-association to form filament-like structures, although the underlying mechanism is poorly understood. Here, we determined the crystal structure of Par-3 NTD and solved the filament structure by cryoelectron microscopy. We found that an intrinsic "front-to-back" interaction mode is important for Par-3 NTD self-association and that both the lateral and longitudinal packing within the filament are mediated by electrostatic interactions. Disruptions of the lateral or longitudinal packing significantly impaired Par-3 NTD self-association and thereby impacted the Par-3-mediated epithelial polarization. We finally demonstrated that a Par-3 NTD-like domain from histidine ammonia-lyase also harbors a similar self-association capacity. This work unequivocally provides the structural basis for Par-3 NTD self-association and characterizes one type of protein domain that can self-assemble via electrostatic interactions. | |||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 28.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 17.2 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 847.7 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 852.7 KB | 表示 | |
XML形式データ | ![]() | 12.5 KB | 表示 | |
CIF形式データ | ![]() | 16 KB | 表示 | |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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1 | ![]()
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3 | ![]()
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対称性 | らせん対称: (回転対称性: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 49 / Rise per n subunits: 3.532 Å / Rotation per n subunits: -43.835 °) |
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要素
#1: タンパク質 | 分子量: 9552.906 Da / 分子数: 1 / 断片: N-TERMINAL DUF3534 DOMAIN, RESIDUES 2-82 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
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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: らせん対称体再構成法 |
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試料調製
構成要素 | 名称: PAR-3 N-TERMINAL DUF3534 DOMAIN / タイプ: COMPLEX / 詳細: SUPPORTING FILM IS GIG HOLELY GRID. |
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緩衝液 | 名称: 50 MM TRIS, 100 MM NACL, 1 MM DTT AND 1 MM EDTA / pH: 8 / 詳細: 50 MM TRIS, 100 MM NACL, 1 MM DTT AND 1 MM EDTA |
試料 | 濃度: 2 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: CARBON |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 詳細: LIQUID ETHANE |
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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: FEI TITAN KRIOS / 日付: 2010年12月1日 詳細: THE MICROSCOPE MODEL IS FEI TITAN KRIOS. 6460 RAW IMAGES WERE COLLECTED AUTOMATICALLY USING THE PACKAGE LEGINON. GOOD MICROGRAPHS WERE SELECTED ONE BY ONE |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 96000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1800 nm / Cs: 2.7 mm |
試料ホルダ | 温度: 95 K |
撮影 | 電子線照射量: 20 e/Å2 フィルム・検出器のモデル: GATAN ULTRASCAN 4000 (4k x 4k) |
画像スキャン | デジタル画像の数: 6460 |
放射波長 | 相対比: 1 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: INDIVIDUAL MICROGRAPHS | ||||||||||||||||
3次元再構成 | 手法: THE INITIAL MODEL WAS OBTAINED USING IHRSR. THEN THE FINAL RECONSTRUCTION WERE OBTAINED BY PROJECTION MATCHING IN EMAN. 解像度: 6.1 Å / 解像度の算出法: FSC 0.5 CUT-OFF / 粒子像の数: 84000 / ピクセルサイズ(実測値): 0.933 Å 詳細: THE INITIAL MODEL WAS OBTAINED USING IHRSR. THEN THE FINAL RECONSTRUCTION WERE OBTAINED BY PROJECTION MATCHING IN EMAN. THE RESOLUTION CRITERIA USED WAS GOLDEN CRITERIA FSC 0.5. SUBMISSION ...詳細: THE INITIAL MODEL WAS OBTAINED USING IHRSR. THEN THE FINAL RECONSTRUCTION WERE OBTAINED BY PROJECTION MATCHING IN EMAN. THE RESOLUTION CRITERIA USED WAS GOLDEN CRITERIA FSC 0.5. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2237. (DEPOSITION ID: 11249). Refinement type: HALF-MAPS REFINED INDEPENDENTLY / 対称性のタイプ: HELICAL | ||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL / Target criteria: ENERGY FUNCTION IN NAMD2 詳細: METHOD--CROSS CORRELATION REFINEMENT PROTOCOL--X-RAY | ||||||||||||||||
原子モデル構築 | PDB-ID: 4I6P Accession code: 4I6P / Source name: PDB / タイプ: experimental model | ||||||||||||||||
精密化 | 最高解像度: 6.1 Å | ||||||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 6.1 Å
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