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基本情報
登録情報 | データベース: PDB / ID: 7cec | |||||||||
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タイトル | Structure of alpha6beta1 integrin in complex with laminin-511 | |||||||||
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![]() | CELL ADHESION/IMMUNE SYSTEM / Integrin / Laminin / Fv-clasp / CELL ADHESION / CELL ADHESION-IMMUNE SYSTEM complex | |||||||||
機能・相同性 | ![]() laminin-5 complex / laminin-2 complex / neuronal-glial interaction involved in cerebral cortex radial glia guided migration / laminin-8 complex / laminin-11 complex / laminin-1 complex / laminin-10 complex / regulation of basement membrane organization / ectodermal cell differentiation / integrin alpha8-beta1 complex ...laminin-5 complex / laminin-2 complex / neuronal-glial interaction involved in cerebral cortex radial glia guided migration / laminin-8 complex / laminin-11 complex / laminin-1 complex / laminin-10 complex / regulation of basement membrane organization / ectodermal cell differentiation / integrin alpha8-beta1 complex / neuregulin binding / extracellular matrix of synaptic cleft / L1CAM interactions / Type I hemidesmosome assembly / integrin alpha3-beta1 complex / integrin alpha5-beta1 complex / integrin alpha6-beta1 complex / integrin alpha7-beta1 complex / integrin alpha10-beta1 complex / integrin alpha11-beta1 complex / positive regulation of glutamate uptake involved in transmission of nerve impulse / myoblast fate specification / integrin alpha9-beta1 complex / regulation of collagen catabolic process / trunk neural crest cell migration / cardiac cell fate specification / integrin alpha1-beta1 complex / integrin binding involved in cell-matrix adhesion / nail development / hemidesmosome assembly / integrin alpha4-beta1 complex / cell-cell adhesion mediated by integrin / postsynapse organization / Localization of the PINCH-ILK-PARVIN complex to focal adhesions / collagen binding involved in cell-matrix adhesion / integrin alpha2-beta1 complex / cell adhesion mediator activity / reactive gliosis / glycosphingolipid binding / formation of radial glial scaffolds / Other semaphorin interactions / positive regulation of integrin-mediated signaling pathway / cerebellar climbing fiber to Purkinje cell synapse / Formation of the ureteric bud / morphogenesis of embryonic epithelium / myelin sheath abaxonal region / CD40 signaling pathway / calcium-independent cell-matrix adhesion / Fibronectin matrix formation / positive regulation of fibroblast growth factor receptor signaling pathway / integrin alphav-beta1 complex / regulation of synapse pruning / skin morphogenesis / CHL1 interactions / basement membrane organization / cardiac muscle cell myoblast differentiation / MET interacts with TNS proteins / morphogenesis of a polarized epithelium / Laminin interactions / Formation of the dystrophin-glycoprotein complex (DGC) / EGR2 and SOX10-mediated initiation of Schwann cell myelination / protein complex involved in cell-matrix adhesion / cardiac muscle cell differentiation / branching involved in salivary gland morphogenesis / leukocyte tethering or rolling / Platelet Adhesion to exposed collagen / germ cell migration / endoderm development / cell projection organization / insulin-like growth factor I binding / negative regulation of cell adhesion / myoblast fusion / positive regulation of vascular endothelial growth factor signaling pathway / regulation of epithelial cell proliferation / Elastic fibre formation / mesodermal cell differentiation / cell-substrate junction assembly / myoblast differentiation / cell migration involved in sprouting angiogenesis / axon extension / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / central nervous system neuron differentiation / wound healing, spreading of epidermal cells / regulation of spontaneous synaptic transmission / positive regulation of fibroblast migration / integrin complex / odontogenesis / heterotypic cell-cell adhesion / extracellular matrix structural constituent / lamellipodium assembly / sarcomere organization / Assembly of collagen fibrils and other multimeric structures / Molecules associated with elastic fibres / MET activates PTK2 signaling / Basigin interactions / skeletal system morphogenesis / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / branching involved in ureteric bud morphogenesis / leukocyte migration / negative regulation of vasoconstriction 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: 3.9 Å | |||||||||
![]() | Arimori, T. / Miyazaki, N. / Takagi, J. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural mechanism of laminin recognition by integrin. 著者: Takao Arimori / Naoyuki Miyazaki / Emiko Mihara / Mamoru Takizawa / Yukimasa Taniguchi / Carlos Cabañas / Kiyotoshi Sekiguchi / Junichi Takagi / ![]() ![]() 要旨: Recognition of laminin by integrin receptors is central to the epithelial cell adhesion to basement membrane, but the structural background of this molecular interaction remained elusive. Here, we ...Recognition of laminin by integrin receptors is central to the epithelial cell adhesion to basement membrane, but the structural background of this molecular interaction remained elusive. Here, we report the structures of the prototypic laminin receptor α6β1 integrin alone and in complex with three-chain laminin-511 fragment determined via crystallography and cryo-electron microscopy, respectively. The laminin-integrin interface is made up of several binding sites located on all five subunits, with the laminin γ1 chain C-terminal portion providing focal interaction using two carboxylate anchor points to bridge metal-ion dependent adhesion site of integrin β1 subunit and Asn189 of integrin α6 subunit. Laminin α5 chain also contributes to the affinity and specificity by making electrostatic interactions with large surface on the β-propeller domain of α6, part of which comprises an alternatively spliced X1 region. The propeller sheet corresponding to this region shows unusually high mobility, suggesting its unique role in ligand capture. | |||||||||
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構造の表示
ムービー |
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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 | ![]() | 426.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 325.8 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 | ![]() | 881.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 924.3 KB | 表示 | |
XML形式データ | ![]() | 67.5 KB | 表示 | |
CIF形式データ | ![]() | 101.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-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: 69776.023 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: 50510.930 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-Laminin subunit ... , 3種, 3分子 CDE
#3: タンパク質 | 分子量: 73414.203 Da / 分子数: 1 / Fragment: E8 fragment / Mutation: I2723C / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#4: タンパク質 | 分子量: 8552.753 Da / 分子数: 1 / Fragment: E8 fragment / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#5: タンパク質 | 分子量: 9483.724 Da / 分子数: 1 / Fragment: E8 fragment / Mutation: D1585C / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-抗体 , 4種, 4分子 FGHI
#6: 抗体 | 分子量: 19463.992 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: chimera of TS2/16 VH(S112C)-SARAH 由来: (組換発現) ![]() ![]() ![]() 発現宿主: ![]() ![]() |
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#7: 抗体 | 分子量: 18270.742 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: chimera of TS2/16 VL-SARAH(S37C) 由来: (組換発現) ![]() ![]() ![]() 発現宿主: ![]() ![]() |
#8: 抗体 | 分子量: 19760.207 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: chimera of HUTS-4 VH(S112C)-SARAH 由来: (組換発現) ![]() ![]() ![]() 発現宿主: ![]() ![]() |
#9: 抗体 | 分子量: 17701.023 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: chimera of HUTS-4 VL(C87Y)-SARAH(S37C) 由来: (組換発現) ![]() ![]() ![]() 発現宿主: ![]() ![]() |
-糖 , 2種, 7分子 
#10: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
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#12: 糖 | ChemComp-NAG / |
-非ポリマー , 2種, 7分子 


#11: 化合物 | ChemComp-CA / #13: 化合物 | |
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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: Quaternary complex of alpha6beta1 integrin, laminin-511, TS2/16 Fv-clasp, and HUTS-4 Fv-clasp タイプ: COMPLEX / Entity ID: #1-#9 / 由来: RECOMBINANT | |||||||||||||||||||||||||
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分子量 | 値: 0.286 MDa / 実験値: NO | |||||||||||||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.07 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: MOLYBDENUM / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | |||||||||||||||||||||||||
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
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 / 倍率(公称値): 59000 X / 最大 デフォーカス(公称値): 800 nm / 最小 デフォーカス(公称値): 600 nm / アライメント法: ZEMLIN TABLEAU |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 40 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 撮影したグリッド数: 1 / 実像数: 7768 |
電子光学装置 | 位相板: VOLTA PHASE PLATE |
画像スキャン | 横: 4096 / 縦: 4096 |
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解析
ソフトウェア |
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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: 2660283 | ||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 429521 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||
精密化 | 立体化学のターゲット値: CDL v1.2 | ||||||||||||||||||||||||||||
拘束条件 |
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