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基本情報
登録情報 | データベース: PDB / ID: 7u6f | ||||||
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タイトル | Mouse retromer (VPS26/VPS35/VPS29) heterotrimers | ||||||
![]() | (Vacuolar protein sorting-associated protein ...) x 3 | ||||||
![]() | TRANSPORT PROTEIN / retromer / membrane trafficking / endosomal trafficking / membrane coat complexes / PROTEIN TRANSPORT | ||||||
機能・相同性 | ![]() WNT ligand biogenesis and trafficking / neurotransmitter receptor transport, endosome to plasma membrane / negative regulation of protein localization / regulation of dendritic spine maintenance / mitochondrion-derived vesicle / negative regulation of protein homooligomerization / tubular endosome / regulation of terminal button organization / positive regulation of Wnt protein secretion / mitochondrion to lysosome vesicle-mediated transport ...WNT ligand biogenesis and trafficking / neurotransmitter receptor transport, endosome to plasma membrane / negative regulation of protein localization / regulation of dendritic spine maintenance / mitochondrion-derived vesicle / negative regulation of protein homooligomerization / tubular endosome / regulation of terminal button organization / positive regulation of Wnt protein secretion / mitochondrion to lysosome vesicle-mediated transport / vacuolar protein processing / retromer, cargo-selective complex / Golgi to vacuole transport / protein localization to organelle / negative regulation of lysosomal protein catabolic process / positive regulation of locomotion involved in locomotory behavior / negative regulation of late endosome to lysosome transport / positive regulation of dopamine biosynthetic process / positive regulation of dopamine receptor signaling pathway / neurotransmitter receptor transport, endosome to postsynaptic membrane / protein localization to endosome / retromer complex / vesicle-mediated transport in synapse / voluntary musculoskeletal movement / mitochondrial fragmentation involved in apoptotic process / transcytosis / dopaminergic synapse / regulation of synapse maturation / endocytic recycling / retrograde transport, endosome to Golgi / positive regulation of protein localization to cell periphery / lysosome organization / positive regulation of mitochondrial fission / regulation of postsynapse assembly / D1 dopamine receptor binding / intracellular protein transport / protein destabilization / modulation of chemical synaptic transmission / negative regulation of inflammatory response / positive regulation of protein catabolic process / positive regulation of canonical Wnt signaling pathway / late endosome / protein transport / presynapse / vesicle / early endosome / neuron projection / endosome membrane / lysosome / postsynapse / endosome / postsynaptic density / negative regulation of gene expression / neuronal cell body / synapse / positive regulation of gene expression / perinuclear region of cytoplasm / glutamatergic synapse / mitochondrion / metal ion binding / membrane / cytosol / cytoplasm 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: 4.9 Å | ||||||
![]() | Kendall, A.K. / Chandra, M. / Jackson, L.P. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Improved mammalian retromer cryo-EM structures reveal a new assembly interface. 著者: Amy K Kendall / Mintu Chandra / Boyang Xie / William Wan / Lauren P Jackson / ![]() 要旨: Retromer (VPS26/VPS35/VPS29 subunits) assembles with multiple sorting nexin proteins on membranes to mediate endosomal recycling of transmembrane protein cargoes. Retromer has been implicated in ...Retromer (VPS26/VPS35/VPS29 subunits) assembles with multiple sorting nexin proteins on membranes to mediate endosomal recycling of transmembrane protein cargoes. Retromer has been implicated in other cellular processes, including mitochondrial homeostasis, nutrient sensing, autophagy, and fission events. Mechanisms for mammalian retromer assembly remain undefined, and retromer engages multiple sorting nexin proteins to sort cargoes to different destinations. Published structures demonstrate mammalian retromer forms oligomers in vitro, but several structures were poorly resolved. We report here improved retromer oligomer structures using single-particle cryo-EM by combining data collected from tilted specimens with multiple advancements in data processing, including using a 3D starting model for enhanced automated particle picking in RELION. We used a retromer mutant (3KE retromer) that breaks VPS35-mediated interfaces to determine a structure of a new assembly interface formed by the VPS26A and VPS35 N-termini. The interface reveals how an N-terminal VPS26A arrestin saddle can link retromer chains by engaging a neighboring VPS35 N- terminus, on the opposite side from the well-characterized C-VPS26/N-VPS35 interaction observed within heterotrimers. The new interaction interface exhibits substantial buried surface area (∼7000 Å) and further suggests that metazoan retromer may serve as an adaptable scaffold. | ||||||
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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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PDBx/mmCIF形式 | ![]() | 232.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 924.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 966.7 KB | 表示 | |
XML形式データ | ![]() | 43.7 KB | 表示 | |
CIF形式データ | ![]() | 63.8 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 | 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
-Vacuolar protein sorting-associated protein ... , 3種, 3分子 D1B3B4
#1: タンパク質 | 分子量: 91821.727 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: 38167.789 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: 20521.668 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
-非ポリマー , 4種, 99分子 






#4: 化合物 | ChemComp-GOL / #5: 化合物 | #6: 化合物 | ChemComp-EDO / #7: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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: Mouse retromer (VPS26/VPS35/VPS29) heterotrimer / タイプ: COMPLEX / Entity ID: #1-#3 / 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: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: 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 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 4700 nm / 最小 デフォーカス(公称値): 700 nm |
撮影 | 電子線照射量: 72 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 4.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 43808 / 対称性のタイプ: POINT |