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基本情報
登録情報 | データベース: PDB / ID: 8s9p | ||||||
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タイトル | 1:1:1 agrin/LRP4/MuSK complex | ||||||
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![]() | SIGNALING PROTEIN / agrin / LRP4 / MuSK / NMJ / RTK | ||||||
機能・相同性 | ![]() positive regulation of presynaptic membrane organization / positive regulation of protein geranylgeranylation / histone H2AXY142 kinase activity / Defective B3GALT6 causes EDSP2 and SEMDJL1 / Defective B4GALT7 causes EDS, progeroid type / Defective B3GAT3 causes JDSSDHD / Defective EXT2 causes exostoses 2 / Defective EXT1 causes exostoses 1, TRPS2 and CHDS / positive regulation of synaptic assembly at neuromuscular junction / regulation of synaptic assembly at neuromuscular junction ...positive regulation of presynaptic membrane organization / positive regulation of protein geranylgeranylation / histone H2AXY142 kinase activity / Defective B3GALT6 causes EDSP2 and SEMDJL1 / Defective B4GALT7 causes EDS, progeroid type / Defective B3GAT3 causes JDSSDHD / Defective EXT2 causes exostoses 2 / Defective EXT1 causes exostoses 1, TRPS2 and CHDS / positive regulation of synaptic assembly at neuromuscular junction / regulation of synaptic assembly at neuromuscular junction / clustering of voltage-gated sodium channels / skeletal muscle acetylcholine-gated channel clustering / chondroitin sulfate binding / A tetrasaccharide linker sequence is required for GAG synthesis / postsynaptic membrane assembly / HS-GAG biosynthesis / presynaptic membrane assembly / HS-GAG degradation / negative regulation of axonogenesis / sialic acid binding / positive regulation of skeletal muscle acetylcholine-gated channel clustering / proximal/distal pattern formation / Wnt-protein binding / dystroglycan binding / amyloid-beta clearance by cellular catabolic process / histone H3Y41 kinase activity / NCAM1 interactions / heparan sulfate proteoglycan binding / dorsal/ventral pattern formation / synaptic assembly at neuromuscular junction / limb development / negative regulation of ossification / positive regulation of filopodium assembly / dendrite morphogenesis / positive regulation of peptidyl-tyrosine phosphorylation / embryonic digit morphogenesis / neuromuscular junction development / generation of neurons / enzyme-linked receptor protein signaling pathway / receptor clustering / RSV-host interactions / odontogenesis of dentin-containing tooth / positive regulation of Rac protein signal transduction / Respiratory syncytial virus (RSV) attachment and entry / basement membrane / regulation of postsynapse assembly / Non-integrin membrane-ECM interactions / apolipoprotein binding / plasma membrane raft / hair follicle development / ECM proteoglycans / Integrin cell surface interactions / Retinoid metabolism and transport / coreceptor activity / laminin binding / transmembrane receptor protein tyrosine kinase activity / positive regulation of GTPase activity / lysosomal lumen / cell surface receptor protein tyrosine kinase signaling pathway / kidney development / synaptic membrane / negative regulation of canonical Wnt signaling pathway / synapse organization / placental growth factor receptor activity / insulin receptor activity / vascular endothelial growth factor receptor activity / hepatocyte growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / platelet-derived growth factor beta-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / transmembrane-ephrin receptor activity / GPI-linked ephrin receptor activity / epidermal growth factor receptor activity / fibroblast growth factor receptor activity / insulin-like growth factor receptor activity / receptor protein-tyrosine kinase / neuromuscular junction / positive regulation of neuron projection development / receptor tyrosine kinase binding / structural constituent of cytoskeleton / memory / Golgi lumen / Wnt signaling pathway / G protein-coupled acetylcholine receptor signaling pathway / endocytosis / positive regulation of protein phosphorylation / protein autophosphorylation / protein tyrosine kinase activity / scaffold protein binding / : / postsynaptic membrane / cell differentiation / Attachment and Entry / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / receptor complex / postsynaptic density 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: 3.8 Å | ||||||
![]() | Xie, T. / Xu, G.J. / Liu, Y. / Quade, B. / Lin, W.C. / Bai, X.C. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into the assembly of the agrin/LRP4/MuSK signaling complex. 著者: Tian Xie / Guangjun Xu / Yun Liu / Bradley Quade / Weichun Lin / Xiao-Chen Bai / ![]() 要旨: MuSK is a receptor tyrosine kinase (RTK) that plays essential roles in the formation and maintenance of the neuromuscular junction. Distinct from most members of RTK family, MuSK activation requires ...MuSK is a receptor tyrosine kinase (RTK) that plays essential roles in the formation and maintenance of the neuromuscular junction. Distinct from most members of RTK family, MuSK activation requires not only its cognate ligand agrin but also its coreceptors LRP4. However, how agrin and LRP4 coactivate MuSK remains unclear. Here, we report the cryo-EM structure of the extracellular ternary complex of agrin/LRP4/MuSK in a stoichiometry of 1:1:1. This structure reveals that arc-shaped LRP4 simultaneously recruits both agrin and MuSK to its central cavity, thereby promoting a direct interaction between agrin and MuSK. Our cryo-EM analyses therefore uncover the assembly mechanism of agrin/LRP4/MuSK signaling complex and reveal how MuSK receptor is activated by concurrent binding of agrin and LRP4. | ||||||
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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 | ![]() | 291.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 188.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 40241MC 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
#1: タンパク質 | 分子量: 217553.922 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: 212287.031 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: 97163.227 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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: 1:1:1 agrin/LRP4/MuSK complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 / 詳細: 25 mM HEPES pH 7.4, 150 mM NaCl, and 2 mM CaCl2 |
試料 | 濃度: 0.56 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % |
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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): 2600 nm / 最小 デフォーカス(公称値): 1600 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 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 | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2414116 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 82511 / 対称性のタイプ: POINT |