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基本情報
登録情報 | ![]() | ||||||||||||||||||
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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 (GCase local refinement map) | ||||||||||||||||||
![]() | Focused refinement of GCase in complex with LIMP-2 and two bound Pro-Macrobodies. Sharpened map (b-factor: -143.8) obtained from local refinement. | ||||||||||||||||||
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![]() | Parkinson / lysosome / Gaucher / GCase / SCARB2 / Pro-macrobody / Glucosylceramide / complex / TRANSPORT PROTEIN | ||||||||||||||||||
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 / : / 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 | ![]() | ||||||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.1 Å | ||||||||||||||||||
![]() | Dobert JP / Schaefer JHS / 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. | ||||||||||||||||||
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マップデータ | ![]() | 117.7 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 23.7 KB 23.7 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.5 KB | 表示 | ![]() |
画像 | ![]() | 155.8 KB | ||
Filedesc metadata | ![]() | 7.1 KB | ||
その他 | ![]() ![]() | 116.1 MB 116.1 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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注釈 | Focused refinement of GCase in complex with LIMP-2 and two bound Pro-Macrobodies. Sharpened map (b-factor: -143.8) obtained from local refinement. | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.925 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: Half map B
ファイル | emd_50937_half_map_1.map | ||||||||||||
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注釈 | Half map B | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half Map A
ファイル | emd_50937_half_map_2.map | ||||||||||||
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注釈 | Half Map A | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Lysosomal transporting complex of beta-glucocerebrosidase and lys...
全体 | 名称: Lysosomal transporting complex of beta-glucocerebrosidase and lysosomal integral membrane protein 2 (LIMP-2) with two bound Pro-macrobodies. |
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要素 |
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-超分子 #1: Lysosomal transporting complex of beta-glucocerebrosidase and lys...
超分子 | 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 / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Maltose-binding protein (MBP) domains of Pro-macrobodies were not resolved, only nanobody domains are included in the model. |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 250 KDa |
-分子 #1: Lysosomal acid glucosylceramidase
分子 | 名称: Lysosomal acid glucosylceramidase / タイプ: protein_or_peptide / ID: 1 / 光学異性体: LEVO / EC番号: glucosylceramidase |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() |
配列 | 文字列: ARPCIPKSFG YSSVVCVCNA TYCDSFDPPT FPALGTFSRY ESTRSGRRME LSMGPIQANH TGTGLLLTLQ PEQKFQKVKG FGGAMTDAA ALNILALSPP AQNLLLKSYF SEEGIGYNII RVPMASCDFS IRTYTYADTP DDFQLHNFSL PEEDTKLKIP L IHRALQLA ...文字列: ARPCIPKSFG YSSVVCVCNA TYCDSFDPPT FPALGTFSRY ESTRSGRRME LSMGPIQANH TGTGLLLTLQ PEQKFQKVKG FGGAMTDAA ALNILALSPP AQNLLLKSYF SEEGIGYNII RVPMASCDFS IRTYTYADTP DDFQLHNFSL PEEDTKLKIP L IHRALQLA QRPVSLLASP WTSPTWLKTN GAVNGKGSLK GQPGDIYHQT WARYFVKFLD AYAEHKLQFW AVTAENEPSA GL LSGYPFQ CLGFTPEHQR DFIARDLGPT LANSTHHNVR LLMLDDQRLL LPHWAKVVLT DPEAAKYVHG IAVHWYLDFL APA KATLGE THRLFPNTML FASEACVGSK FWEQSVRLGS WDRGMQYSHS IITNLLYHVV GWTDWNLALN PEGGPNWVRN FVDS PIIVD ITKDTFYKQP MFYHLGHFSK FIPEGSQRVG LVASQKNDLD AVALMHPDGS AVVVVLNRSS KDVPLTIKDP AVGFL ETIS PGYSIHTYLW RRQ UniProtKB: Lysosomal acid glucosylceramidase |
-分子 #2: Nanobody Nb6
分子 | 名称: Nanobody Nb6 / タイプ: protein_or_peptide / ID: 2 詳細: Pro-Macrobody; nanobody fused to maltose-binding protein (MBP) via Pro-Pro linker; MBP not resolved and not modeled. 光学異性体: LEVO |
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由来(天然) | 生物種: unidentified (未定義) |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: QVQLVESGGG LVQPGGSLRL SCAASGSIFS INTMGWYRQA PGKEREMVAY IITFGSTNYA DSVKGRFTIS GDNANNTMWL QMNSLKPED TAVYYCYAAI RPTDSSTYTS YWGQGTQVTV PP |
-分子 #3: Lysosomal membrane protein 2
分子 | 名称: Lysosomal membrane protein 2 / タイプ: protein_or_peptide / ID: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() |
配列 | 文字列: KKIVLRNGTE AFDSWEKPPL PVYTQFYFFN VTNPEEILRG ETPRVEEVGP YTYRELRNKA NIQFGDNGTT ISAVSNKAYV FERDQSVGD PKIDLIRTLN IPVLTVIEWS QVHFLREIIE AMLKAYQQKL FVTHTVDELL WGYKDEILSL IHVFRPDISP Y FGLFYEKN ...文字列: KKIVLRNGTE AFDSWEKPPL PVYTQFYFFN VTNPEEILRG ETPRVEEVGP YTYRELRNKA NIQFGDNGTT ISAVSNKAYV FERDQSVGD PKIDLIRTLN IPVLTVIEWS QVHFLREIIE AMLKAYQQKL FVTHTVDELL WGYKDEILSL IHVFRPDISP Y FGLFYEKN GTNDGDYVFL TGEDSYLNFT KIVEWNGKTS LDWWITDKCN MINGTDGDSF HPLITKDEVL YVFPSDFCRS VY ITFSDYE SVQGLPAFRY KVPAEILANT SDNAGFCIPE GNCLGSGVLN VSICKNGAPI IMSFPHFYQA DERFVSYLDF LAP NQEDHE TFVDINPLTG IILKAAKRFQ INIYVKKLDD FVETGDIRTM VFPVMYLNES VHIDKETASR LKSMI UniProtKB: Lysosome membrane protein 2 |
-分子 #4: Nanobody Nb1
分子 | 名称: Nanobody Nb1 / タイプ: protein_or_peptide / ID: 4 詳細: Pro-Macrobody; nanobody fused to maltose-binding protein (MBP) via Pro-Pro linker; MBP not resolved and not modeled. 光学異性体: LEVO |
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由来(天然) | 生物種: unidentified (未定義) |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: QVQLVESGGG LVQPGGSLRL SCAASGFTLD YYAIGWFRQA PGKEREGVSC ISSSDGSTYY ADSAKGRFTI SRDNAKNTVY LQMNSLKPE DTAVYYCATD RGQCTYYSSG YYRDLRWYDY WGQGTQVTVP P |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.6 mg/mL | |||||||||
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緩衝液 | pH: 7.4 構成要素:
詳細: 20 mM MES; 150 mM NaCl, pH: 7.4 | |||||||||
グリッド | モデル: C-flat-1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 支持フィルム - Film thickness: 2 | |||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV | |||||||||
詳細 | Monodisperse, complex seperated from monomers via size exclusion chhromatography. |
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電子顕微鏡法
顕微鏡 | TFS GLACIOS |
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特殊光学系 | 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 |
撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 検出モード: COUNTING / 撮影したグリッド数: 1 / 実像数: 10550 / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 0.6 µm / 倍率(公称値): 130000 |
試料ステージ | ホルダー冷却材: NITROGEN |
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画像解析
-原子モデル構築 1
初期モデル | PDB ID: Chain - Chain ID: AAA / Chain - Residue range: 1-497 / Chain - Source name: PDB / Chain - Initial model type: experimental model / 詳細: GCase |
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詳細 | Initial fitting with ChimeraX, manual flexible fitting with Coot, refinement with Phenix |
精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT |
-原子モデル構築 2
初期モデル | PDB ID: Chain - Chain ID: A / Chain - Residue range: 37-430 / Chain - Source name: PDB / Chain - Initial model type: experimental model / 詳細: LIMP-2 |
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詳細 | Initial fitting with ChimeraX, manual flexible fitting with Coot, refinement with Phenix |
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
-原子モデル構築 3
初期モデル | PDB ID: Chain - Source name: PDB / Chain - Initial model type: experimental model / 詳細: Nanobody Nb1; Unpublished |
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詳細 | Initial fitting with ChimeraX, manual flexible fitting with Coot, refinement with Phenix |
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |