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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 3j6m | ||||||
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| タイトル | Kinetic and Structural Analysis of Coxsackievirus B3 Receptor Interactions and Formation of the A-particle | ||||||
要素 | Coxsackievirus and adenovirus receptor | ||||||
キーワード | CELL ADHESION / Coxsackievirus B3 / CVB3 / CAR | ||||||
| 機能・相同性 | 機能・相同性情報AV node cell-bundle of His cell adhesion involved in cell communication / cell adhesive protein binding involved in AV node cell-bundle of His cell communication / AV node cell to bundle of His cell communication / homotypic cell-cell adhesion / epithelial structure maintenance / regulation of AV node cell action potential / gamma-delta T cell activation / apicolateral plasma membrane / germ cell migration / connexin binding ...AV node cell-bundle of His cell adhesion involved in cell communication / cell adhesive protein binding involved in AV node cell-bundle of His cell communication / AV node cell to bundle of His cell communication / homotypic cell-cell adhesion / epithelial structure maintenance / regulation of AV node cell action potential / gamma-delta T cell activation / apicolateral plasma membrane / germ cell migration / connexin binding / transepithelial transport / cell-cell junction organization / cardiac muscle cell development / heterophilic cell-cell adhesion / intercalated disc / bicellular tight junction / cell adhesion molecule binding / neutrophil chemotaxis / acrosomal vesicle / Cell surface interactions at the vascular wall / mitochondrion organization / filopodium / adherens junction / PDZ domain binding / neuromuscular junction / beta-catenin binding / integrin binding / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / cell-cell junction / cell junction / heart development / cell body / growth cone / virus receptor activity / actin cytoskeleton organization / basolateral plasma membrane / defense response to virus / neuron projection / membrane raft / signaling receptor binding / protein-containing complex / extracellular space / extracellular region / nucleoplasm / identical protein binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 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: 9 Å | ||||||
データ登録者 | Organtini, L.J. / Makhov, A.M. / Conway, J.F. / Hafenstein, S. / Carson, S.D. | ||||||
引用 | ジャーナル: J Virol / 年: 2014タイトル: Kinetic and structural analysis of coxsackievirus B3 receptor interactions and formation of the A-particle. 著者: Lindsey J Organtini / Alexander M Makhov / James F Conway / Susan Hafenstein / Steven D Carson / ![]() 要旨: The coxsackievirus and adenovirus receptor (CAR) has been identified as the cellular receptor for group B coxsackieviruses, including serotype 3 (CVB3). CAR mediates infection by binding to CVB3 and ...The coxsackievirus and adenovirus receptor (CAR) has been identified as the cellular receptor for group B coxsackieviruses, including serotype 3 (CVB3). CAR mediates infection by binding to CVB3 and catalyzing conformational changes in the virus that result in formation of the altered, noninfectious A-particle. Kinetic analyses show that the apparent first-order rate constant for the inactivation of CVB3 by soluble CAR (sCAR) at physiological temperatures varies nonlinearly with sCAR concentration. Cryo-electron microscopy (cryo-EM) reconstruction of the CVB3-CAR complex resulted in a 9.0-Å resolution map that was interpreted with the four available crystal structures of CAR, providing a consensus footprint for the receptor binding site. The analysis of the cryo-EM structure identifies important virus-receptor interactions that are conserved across picornavirus species. These conserved interactions map to variable antigenic sites or structurally conserved regions, suggesting a combination of evolutionary mechanisms for receptor site preservation. The CAR-catalyzed A-particle structure was solved to a 6.6-Å resolution and shows significant rearrangement of internal features and symmetric interactions with the RNA genome. IMPORTANCE: This report presents new information about receptor use by picornaviruses and highlights the importance of attaining at least an ∼9-Å resolution for the interpretation of cryo-EM ...IMPORTANCE: This report presents new information about receptor use by picornaviruses and highlights the importance of attaining at least an ∼9-Å resolution for the interpretation of cryo-EM complex maps. The analysis of receptor binding elucidates two complementary mechanisms for preservation of the low-affinity (initial) interaction of the receptor and defines the kinetics of receptor-catalyzed conformational change to the A-particle. | ||||||
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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: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 3j6m.cif.gz | 39.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb3j6m.ent.gz | 25.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 3j6m.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| 文書・要旨 | 3j6m_validation.pdf.gz | 851.8 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 3j6m_full_validation.pdf.gz | 855.7 KB | 表示 | |
| XML形式データ | 3j6m_validation.xml.gz | 13.4 KB | 表示 | |
| CIF形式データ | 3j6m_validation.cif.gz | 17.7 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/j6/3j6m ftp://data.pdbj.org/pub/pdb/validation_reports/j6/3j6m | 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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| 1 | x 60![]()
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| 3 | x 5![]()
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| 4 | x 6![]()
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| 5 | ![]()
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| 対称性 | 点対称性: (シェーンフリース記号: I (正20面体型対称)) |
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要素
| #1: タンパク質 | 分子量: 13640.500 Da / 分子数: 1 / 断片: UNP residues 21-144 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CXADR, CAR / 発現宿主: ![]() |
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| #2: 水 | ChemComp-HOH / |
| 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 |
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| 分子量 | 値: 7 MDa / 実験値: YES | ||||||||||||||||||||
| ウイルスについての詳細 | 中空か: NO / エンベロープを持つか: NO / ホストのカテゴリ: VERTEBRATES / 単離: STRAIN / タイプ: VIRION | ||||||||||||||||||||
| 天然宿主 | 生物種: Homo sapiens | ||||||||||||||||||||
| 緩衝液 | 名称: 50 mM MES, 100 mM NaCl / pH: 6 / 詳細: 50 mM MES, 100 mM NaCl | ||||||||||||||||||||
| 試料 | 濃度: 0.1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
| 試料支持 | 詳細: glow-discharged holey carbon Quantifoil electron microscopy grids | ||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: OTHER / Temp: 95 K / 湿度: 95 % / 詳細: Plunged into ethane-propane (FEI VITROBOT MARK III) |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TECNAI F20 / 日付: 2012年8月1日 |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: SPOT SCAN |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 50000 X / 倍率(補正後): 50000 X / 最大 デフォーカス(公称値): 3660 nm / 最小 デフォーカス(公称値): 1980 nm / Cs: 2 mm / 非点収差: CTFFIND3 / カメラ長: 0 mm |
| 試料ホルダ | 試料ホルダーモデル: GATAN LIQUID NITROGEN / 傾斜角・最大: 0 ° / 傾斜角・最小: 0 ° |
| 撮影 | 電子線照射量: 15 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM |
| 画像スキャン | デジタル画像の数: 96 |
| 放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
| 放射波長 | 相対比: 1 |
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解析
| EMソフトウェア |
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| CTF補正 | 詳細: AUTO3DEM | ||||||||||||
| 対称性 | 点対称性: I (正20面体型対称) | ||||||||||||
| 3次元再構成 | 手法: Common Lines / 解像度: 9 Å / 解像度の算出法: FSC 0.5 CUT-OFF / 粒子像の数: 9302 / ピクセルサイズ(公称値): 1.25 Å / ピクセルサイズ(実測値): 1.25 Å 詳細: (Single particle details: Particles were selected using EMAN) (Single particle--Applied symmetry: I) 対称性のタイプ: POINT | ||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: correlation coefficient / 詳細: REFINEMENT PROTOCOL--rigid body | ||||||||||||
| 原子モデル構築 | PDB-ID: 1KAC PDB chain-ID: B / Accession code: 1KAC / Source name: PDB / タイプ: experimental model | ||||||||||||
| 精密化ステップ | サイクル: LAST
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万見について




Homo sapiens (ヒト)
引用
UCSF Chimera










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