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基本情報
登録情報 | データベース: PDB / ID: 9fjf | ||||||||||||||||||
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タイトル | Lysosomal transporting complex of beta-glucocerebrosidase (GCase) and lysosomal integral membrane protein 2 (LIMP-2) with bound Pro-macrobodies (Combined focus map) | ||||||||||||||||||
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![]() | TRANSPORT PROTEIN / Parkinson / lysosome / Gaucher / GCase / SCARB2 / Pro-macrobody / Glucosylceramide / complex | ||||||||||||||||||
機能・相同性 | ![]() regulation of glucosylceramide catabolic process / regulation of carbohydrate catabolic process / regulation of endosome organization / steryl-beta-glucosidase activity / positive regulation of neuronal action potential / beta-glucoside catabolic process / cerebellar Purkinje cell layer formation / aminophospholipid transport / termination of signal transduction / galactosylceramidase ...regulation of glucosylceramide catabolic process / regulation of carbohydrate catabolic process / regulation of endosome organization / steryl-beta-glucosidase activity / positive regulation of neuronal action potential / beta-glucoside catabolic process / cerebellar Purkinje cell layer formation / aminophospholipid transport / termination of signal transduction / galactosylceramidase / galactosylceramidase activity / glucosylceramidase / scavenger receptor binding / positive regulation of protein lipidation / lymphocyte migration / glucosylceramide catabolic process / regulation of lysosomal protein catabolic process / glucosylceramidase activity / sphingosine biosynthetic process / autophagosome organization / microglial cell proliferation / glucosyltransferase activity / endosome to plasma membrane protein transport / regulation of TOR signaling / regulation of lysosome organization / protein targeting to lysosome / response to thyroid hormone / Glycosphingolipid catabolism / microglia differentiation / ceramide biosynthetic process / phosphatidylcholine binding / positive regulation of type 2 mitophagy / lipid storage / lipid glycosylation / brain morphogenesis / positive regulation of protein-containing complex disassembly / response to pH / 加水分解酵素; 糖加水分解酵素; 配糖体結合加水分解酵素または糖加水分解酵素 / pyramidal neuron differentiation / cargo receptor activity / negative regulation of protein metabolic process / scavenger receptor activity / motor behavior / lysosome organization / 転移酵素; グリコシル基を移すもの; 六炭糖残基を移すもの / cholesterol binding / neuromuscular process / phosphatidylserine binding / hematopoietic stem cell proliferation / antigen processing and presentation / response to testosterone / Association of TriC/CCT with target proteins during biosynthesis / response to dexamethasone / negative regulation of interleukin-6 production / homeostasis of number of cells / regulation of macroautophagy / establishment of skin barrier / negative regulation of MAPK cascade / negative regulation of protein-containing complex assembly / cell maturation / mitophagy / receptor-mediated endocytosis / cholesterol metabolic process / lysosomal lumen / cellular response to starvation / respiratory electron transport chain / determination of adult lifespan / sensory perception of sound / trans-Golgi network / clathrin-coated endocytic vesicle membrane / positive regulation of neuron projection development / autophagy / negative regulation of inflammatory response / response to estrogen / endocytic vesicle membrane / late endosome membrane / transmembrane signaling receptor activity / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Cargo recognition for clathrin-mediated endocytosis / cellular response to tumor necrosis factor / Clathrin-mediated endocytosis / protein-folding chaperone binding / T cell differentiation in thymus / virus receptor activity / neuron apoptotic process / negative regulation of neuron apoptotic process / proteasome-mediated ubiquitin-dependent protein catabolic process / lysosome / endosome membrane / Golgi membrane / signaling receptor binding / lysosomal membrane / focal adhesion / endoplasmic reticulum membrane / enzyme binding / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / extracellular exosome / membrane 類似検索 - 分子機能 | ||||||||||||||||||
生物種 | ![]() synthetic construct (人工物) | ||||||||||||||||||
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: 3.7 Å | ||||||||||||||||||
![]() | Dobert, J.P. / Schaefer, J.H.S. / Dal Maso, T. / Socher, E. / Versees, W. / Moeller, A. / Zunke, F. / Arnold, P. | ||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-TEM structure of β-glucocerebrosidase in complex with its transporter LIMP-2. 著者: Jan Philipp Dobert / Jan-Hannes Schäfer / Thomas Dal Maso / Priyadarshini Ravindran / Dustin J E Huard / Eileen Socher / Lisa A Schildmeyer / Raquel L Lieberman / Wim Versées / Arne Moeller ...著者: Jan Philipp Dobert / Jan-Hannes Schäfer / Thomas Dal Maso / Priyadarshini Ravindran / Dustin J E Huard / Eileen Socher / Lisa A Schildmeyer / Raquel L Lieberman / Wim Versées / Arne Moeller / Friederike Zunke / Philipp Arnold / ![]() ![]() ![]() 要旨: Targeting proteins to their final cellular destination requires transport mechanisms and nearly all lysosomal enzymes reach the lysosome via the mannose-6-phosphate receptor pathway. One of the few ...Targeting proteins to their final cellular destination requires transport mechanisms and nearly all lysosomal enzymes reach the lysosome via the mannose-6-phosphate receptor pathway. One of the few known exceptions is the enzyme β-glucocerebrosidase (GCase) that requires the lysosomal integral membrane protein type-2 (LIMP-2) as a proprietary lysosomal transporter. Genetic variations in the GCase encoding gene GBA1 cause Gaucher's disease (GD) and present the highest genetic risk factor to develop Parkinson's disease (PD). Activators targeting GCase emerge as a promising therapeutic approach to treat GD and PD, with pre-clinical and clinical trials ongoing. In this study, we resolve the complex of GCase and LIMP-2 using cryo-electron microscopy with the aid of an engineered LIMP-2 shuttle and two GCase-targeted pro-macrobodies. We identify helix 5 and helix 7 of LIMP-2 to interact with a binding pocket in GCase, forming a mostly hydrophobic interaction interface supported by one essential salt bridge. Understanding the interplay of GCase and LIMP-2 on a structural level is crucial to identify potential activation sites and conceptualizing novel therapeutic approaches targeting GCase. Here, we unveil the protein structure of a mannose-6-phosphate-independent lysosomal transport complex and provide fundamental knowledge for translational clinical research to overcome GD and PD. | ||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 221.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 173.6 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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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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要素
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 44862.691 Da / 分子数: 1 変異: aa 36-431; N-terminal IgK leader; C-terminal TEV site and 10xHis tag 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: 55659.219 Da / 分子数: 1 / 変異: none / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: P04062, glucosylceramidase, 転移酵素; グリコシル基を移すもの; 六炭糖残基を移すもの, EC: 3.2.1.104 |
-抗体 , 2種, 2分子 CD
#3: 抗体 | 分子量: 14409.816 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Pro-Macrobody; nanobody fused to maltose-binding protein (MBP) via Pro-Pro linker; MBP not resolved and not modeled. 由来: (組換発現) synthetic construct (人工物) / 発現宿主: ![]() ![]() |
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#4: 抗体 | 分子量: 13145.612 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Pro-Macrobody; nanobody fused to maltose-binding protein (MBP) via Pro-Pro linker; MBP not resolved and not modeled. 由来: (組換発現) synthetic construct (人工物) / 発現宿主: ![]() ![]() |
-糖 , 4種, 13分子 
#5: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||
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#6: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #7: 多糖 | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #8: 糖 | ChemComp-NAG / |
-非ポリマー , 2種, 31分子 


#9: 化合物 | ChemComp-MES / #10: 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 | N |
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Has protein modification | Y |
-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: Lysosomal transporting complex of beta-glucocerebrosidase and lysosomal integral membrane protein 2 (LIMP-2) with two bound Pro-macrobodies. タイプ: COMPLEX 詳細: Maltose-binding protein (MBP) domains of Pro-macrobodies were not resolved, only nanobody domains are included in the model. Entity ID: #2, #4, #1, #3 / 由来: RECOMBINANT | |||||||||||||||
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分子量 | 値: 0.25 MDa / 実験値: NO | |||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||
由来(組換発現) | 生物種: hybrid (その他) | |||||||||||||||
緩衝液 | pH: 7.4 / 詳細: 20 mM MES; 150 mM NaCl, pH: 7.4 | |||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.6 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Monodisperse, complex seperated from monomers via size exclusion chhromatography. | |||||||||||||||
試料支持 | 詳細: Protochips; CF-1.2/1.3-3Cu-50 / グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: C-flat-1.2/1.3 | |||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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電子顕微鏡撮影
顕微鏡 | モデル: TFS GLACIOS |
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電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 130000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 600 nm |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 50 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 1 / 実像数: 10550 |
電子光学装置 | エネルギーフィルター名称: TFS Selectris / エネルギーフィルタースリット幅: 10 eV |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 397385 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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原子モデル構築 | Source name: PDB / タイプ: experimental model
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