+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-20608 | |||||||||
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タイトル | Asymmetrically open conformational state (Class II) of HIV-1 Env trimer BG505 SOSIP.664 in complex with sCD4 and E51 Fab | |||||||||
マップデータ | local-resolution filtered EM map of class-2 open conformation of BG505 SOSIP.664-sCD4-E51 complex | |||||||||
試料 |
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キーワード | BG505 SOSIP.664 / E51 / sCD4 / Env / Env open conformation / asymmetrically open Env / VIRAL PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / interleukin-15-mediated signaling pathway / regulation of T cell activation / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation ...helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / interleukin-15-mediated signaling pathway / regulation of T cell activation / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation / positive regulation of kinase activity / Nef Mediated CD4 Down-regulation / Alpha-defensins / extracellular matrix structural constituent / T cell receptor complex / Other interleukin signaling / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / regulation of calcium ion transport / macrophage differentiation / Generation of second messenger molecules / T cell differentiation / PD-1 signaling / positive regulation of protein kinase activity / Binding and entry of HIV virion / coreceptor activity / cell surface receptor protein tyrosine kinase signaling pathway / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / protein tyrosine kinase binding / host cell endosome membrane / T cell activation / Vpu mediated degradation of CD4 / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / positive regulation of peptidyl-tyrosine phosphorylation / positive regulation of T cell activation / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / MHC class II protein complex binding / Clathrin-mediated endocytosis / signaling receptor activity / virus receptor activity / clathrin-dependent endocytosis of virus by host cell / positive regulation of canonical NF-kappaB signal transduction / defense response to Gram-negative bacterium / adaptive immune response / positive regulation of MAPK cascade / positive regulation of ERK1 and ERK2 cascade / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / viral protein processing / cell adhesion / immune response / positive regulation of protein phosphorylation / membrane raft / endoplasmic reticulum lumen / external side of plasma membrane / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / lipid binding / viral envelope / endoplasmic reticulum membrane / virion attachment to host cell / apoptotic process / protein kinase binding / host cell plasma membrane / positive regulation of DNA-templated transcription / structural molecule activity / virion membrane / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) / Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.5 Å | |||||||||
データ登録者 | Yang Z / Bjorkman PJ | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2019 タイトル: Asymmetric opening of HIV-1 Env bound to CD4 and a coreceptor-mimicking antibody. 著者: Zhi Yang / Haoqing Wang / Albert Z Liu / Harry B Gristick / Pamela J Bjorkman / 要旨: The human immunodeficiency virus (HIV-1) envelope (Env) glycoprotein, a (gp120-gp41) trimer, mediates fusion of viral and host cell membranes after gp120 binding to host receptor CD4. Receptor ...The human immunodeficiency virus (HIV-1) envelope (Env) glycoprotein, a (gp120-gp41) trimer, mediates fusion of viral and host cell membranes after gp120 binding to host receptor CD4. Receptor binding triggers conformational changes allowing coreceptor (CCR5) recognition through CCR5's tyrosine-sulfated amino (N) terminus, release of the gp41 fusion peptide and fusion. We present 3.3 Å and 3.5 Å cryo-EM structures of E51, a tyrosine-sulfated coreceptor-mimicking antibody, complexed with a CD4-bound open HIV-1 native-like Env trimer. Two classes of asymmetric Env interact with E51, revealing tyrosine-sulfated interactions with gp120 mimicking CCR5 interactions, and two conformations of gp120-gp41 protomers (A and B protomers in AAB and ABB trimers) that differ in their degree of CD4-induced trimer opening and induction of changes to the fusion peptide. By integrating the new structural information with previous closed and open envelope trimer structures, we modeled the order of conformational changes on the path to coreceptor binding site exposure and subsequent viral-host cell membrane fusion. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_20608.map.gz | 105.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-20608-v30.xml emd-20608.xml | 22.1 KB 22.1 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_20608_fsc.xml | 12.8 KB | 表示 | FSCデータファイル |
画像 | emd_20608.png | 68.6 KB | ||
マスクデータ | emd_20608_msk_1.map | 178 MB | マスクマップ | |
Filedesc metadata | emd-20608.cif.gz | 7 KB | ||
その他 | emd_20608_additional.map.gz | 11.5 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-20608 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20608 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_20608_validation.pdf.gz | 468.2 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_20608_full_validation.pdf.gz | 467.7 KB | 表示 | |
XML形式データ | emd_20608_validation.xml.gz | 13.1 KB | 表示 | |
CIF形式データ | emd_20608_validation.cif.gz | 17.7 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20608 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20608 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_20608.map.gz / 形式: CCP4 / 大きさ: 178 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | local-resolution filtered EM map of class-2 open conformation of BG505 SOSIP.664-sCD4-E51 complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 1.057 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-マスク #1
ファイル | emd_20608_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: masked, sharpened EM map (with B-factor -72) of...
ファイル | emd_20608_additional.map | ||||||||||||
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注釈 | masked, sharpened EM map (with B-factor -72) of the class-2 open conformation | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : Cryo-EM map for class-1 asymmetric open conformation of HIV-1 Env...
+超分子 #1: Cryo-EM map for class-1 asymmetric open conformation of HIV-1 Env...
+超分子 #2: Envelope glycoprotein gp120
+超分子 #3: T-cell surface glycoprotein CD4
+超分子 #4: E51 Fab
+超分子 #5: Envelope glycoprotein gp41
+分子 #1: Envelope glycoprotein gp120
+分子 #2: T-cell surface glycoprotein CD4
+分子 #3: E51 Fab heavy chain
+分子 #4: E51 Fab light chain
+分子 #5: Envelope glycoprotein gp41
+分子 #8: 2-acetamido-2-deoxy-beta-D-glucopyranose
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 1.2 mg/mL |
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緩衝液 | pH: 8 |
グリッド | 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 詳細: unspecified |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 実像数: 3128 / 平均電子線量: 64.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | C2レンズ絞り径: 70.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm 最大 デフォーカス(公称値): 2.8000000000000003 µm 最小 デフォーカス(公称値): 1.0 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |