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基本情報
登録情報 | データベース: PDB / ID: 8t1o | |||||||||||||||||||||||||||||||||||||||||||||
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タイトル | AP2 bound to MSP2N2 nanodisc with Tgn38 cargo peptide; composite map | |||||||||||||||||||||||||||||||||||||||||||||
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![]() | ENDOCYTOSIS / Clathrin-mediated endocytosis / peripheral membrane protein | |||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() postsynaptic Golgi apparatus / Post-translational protein phosphorylation / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Retrograde transport at the Trans-Golgi-Network / Formation of annular gap junctions / Gap junction degradation / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / WNT5A-dependent internalization of FZD4 / Trafficking of GluR2-containing AMPA receptors ...postsynaptic Golgi apparatus / Post-translational protein phosphorylation / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Retrograde transport at the Trans-Golgi-Network / Formation of annular gap junctions / Gap junction degradation / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / WNT5A-dependent internalization of FZD4 / Trafficking of GluR2-containing AMPA receptors / Retrograde neurotrophin signalling / VLDLR internalisation and degradation / clathrin adaptor complex / cardiac septum development / Golgi to endosome transport / Golgi Associated Vesicle Biogenesis / Recycling pathway of L1 / extrinsic component of presynaptic endocytic zone membrane / regulation of vesicle size / AP-2 adaptor complex / postsynaptic endocytic zone / postsynaptic neurotransmitter receptor internalization / Cargo recognition for clathrin-mediated endocytosis / membrane coat / Clathrin-mediated endocytosis / positive regulation of synaptic vesicle endocytosis / clathrin coat assembly / Cargo recognition for clathrin-mediated endocytosis / clathrin adaptor activity / Clathrin-mediated endocytosis / vesicle budding from membrane / trans-Golgi network transport vesicle / clathrin-dependent endocytosis / MHC class II antigen presentation / signal sequence binding / coronary vasculature development / neurotransmitter secretion / positive regulation of protein localization to membrane / regulation of hematopoietic stem cell differentiation / aorta development / ventricular septum development / low-density lipoprotein particle receptor binding / clathrin binding / positive regulation of endocytosis / positive regulation of receptor internalization / synaptic vesicle endocytosis / negative regulation of protein localization to plasma membrane / vesicle-mediated transport / Neutrophil degranulation / secretory granule / intracellular protein transport / kidney development / trans-Golgi network / kinase binding / cytoplasmic side of plasma membrane / disordered domain specific binding / synaptic vesicle / presynapse / heart development / protein-containing complex assembly / cytoplasmic vesicle / transmembrane transporter binding / postsynapse / endosome / protein domain specific binding / synapse / lipid binding / protein-containing complex binding / protein kinase binding / glutamatergic synapse / Golgi apparatus / mitochondrion / membrane / cytosol 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: 3.3 Å | |||||||||||||||||||||||||||||||||||||||||||||
![]() | Baker, R.W. / Cannon, K.S. / Reta, S. | |||||||||||||||||||||||||||||||||||||||||||||
資金援助 | 1件
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![]() | ![]() タイトル: Lipid nanodiscs as a template for high-resolution cryo-EM structures of peripheral membrane proteins. 著者: Kevin S Cannon / Reta D Sarsam / Tanita Tedamrongwanish / Kevin Zhang / Richard W Baker / ![]() 要旨: Peripheral membrane proteins are ubiquitous throughout cell biology and are required for a variety of cellular processes such as signal transduction, membrane trafficking, and autophagy. Transient ...Peripheral membrane proteins are ubiquitous throughout cell biology and are required for a variety of cellular processes such as signal transduction, membrane trafficking, and autophagy. Transient binding to the membrane has a profound impact on protein function, serving to induce conformational changes and alter biochemical and biophysical parameters by increasing the local concentration of factors and restricting diffusion to two dimensions. Despite the centrality of the membrane in serving as a template for cell biology, there are few reported high-resolution structures of peripheral membrane proteins bound to the membrane. We analyzed the utility of lipid nanodiscs to serve as a template for cryo-EM analysis of peripheral membrane proteins. We tested a variety of nanodiscs and we report a 3.3 Å structure of the AP2 clathrin adaptor complex bound to a 17-nm nanodisc, with sufficient resolution to visualize a bound lipid head group. Our data demonstrate that lipid nanodiscs are amenable to high-resolution structure determination of peripheral membrane proteins and provide a framework for extending this analysis to other systems. | |||||||||||||||||||||||||||||||||||||||||||||
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 | ![]() | 350.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 278.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 58.7 KB | 表示 | |
CIF形式データ | ![]() | 86.3 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 | ![]() 40973MC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
-AP-2 complex subunit ... , 4種, 4分子 ABMS
#1: タンパク質 | 分子量: 70573.320 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
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#2: タンパク質 | 分子量: 66953.195 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
#3: タンパク質 | 分子量: 49726.641 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
#4: タンパク質 | 分子量: 17038.688 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
-タンパク質・ペプチド / 非ポリマー , 2種, 2分子 P

#5: タンパク質・ペプチド | 分子量: 1723.009 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Synthesized cargo peptide with an N-terminal oleic acid modification 由来: (組換発現) ![]() ![]() ![]() ![]() |
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#6: 化合物 | ChemComp-PIO / [( |
-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | N |
-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: AP2 bound to MSP2N2 nanodisc with Tgn38 cargo peptide タイプ: COMPLEX 詳細: Nanodiscs were assembled with a lipid mixture containing 75 mol% DOPC, 15 mol% DOPS, 10 mol% PIP2. Complex was formed by co-elution via gel filtration chromatography. Entity ID: #1-#5 / 由来: MULTIPLE SOURCES | ||||||||||||
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分子量 | 値: 0.2 MDa / 実験値: NO | ||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: ![]() ![]() | ||||||||||||
緩衝液 | pH: 7.4 / 詳細: 20 mM HEPES pH 7.4, 100 mM NaCl | ||||||||||||
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Nanodiscs were assembled with a lipid mixture containing 75 mol% DOPC, 15 mol% DOPS, 10 mol% PIP2. Complex was formed by co-elution via gel filtration chromatography. | ||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE-PROPANE / 湿度: 100 % / 凍結前の試料温度: 277 K / 詳細: Two applications of sample. |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TALOS ARCTICA |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 45000 X / 倍率(補正後): 45000 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): 500 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 55 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア |
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画像処理 | 詳細: Data collected in counting mode | ||||||||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2100000 詳細: General model gmodel_phosnet_202005_N63_c17.h5 used for crYOLO picking. | ||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 268232 詳細: Composite map was made using the phenix.combine_focused_maps function. Three separate local refinements were combined to make the final map. 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||
拘束条件 |
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