+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6u0n | |||||||||
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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 | |||||||||
要素 |
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キーワード | VIRAL PROTEIN / BG505 SOSIP.664 / E51 / sCD4 / Env / Env open conformation / asymmetrically open Env | |||||||||
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 | 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: 3.5 Å | |||||||||
データ登録者 | Yang, Z. / Bjorkman, P.J. | |||||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6u0n.cif.gz | 459.2 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6u0n.ent.gz | 365.9 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6u0n.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 | 6u0n_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6u0n_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 6u0n_validation.xml.gz | 74.9 KB | 表示 | |
CIF形式データ | 6u0n_validation.cif.gz | 114.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/u0/6u0n ftp://data.pdbj.org/pub/pdb/validation_reports/u0/6u0n | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Envelope glycoprotein ... , 2種, 6分子 ABCXYZ
#1: タンパク質 | 分子量: 53864.086 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) 遺伝子: env / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q2N0S6 #5: タンパク質 | 分子量: 17146.482 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) 遺伝子: env / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q2N0S6 |
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-タンパク質 , 1種, 3分子 DEF
#2: タンパク質 | 分子量: 21472.350 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CD4 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P01730 |
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-抗体 , 2種, 6分子 HIPJLQ
#3: 抗体 | 分子量: 24891.582 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) #4: 抗体 | 分子量: 22352.635 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) |
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-糖 , 3種, 29分子
#6: 多糖 | #7: 多糖 | #8: 糖 | ChemComp-NAG / |
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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 |
-試料調製
構成要素 |
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分子量 | 単位: MEGADALTONS / 実験値: NO | ||||||||||||||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 8 | ||||||||||||||||||||||||||||||||||||
試料 | 濃度: 1.2 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: unspecified | ||||||||||||||||||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE |
-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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2800 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm / C2レンズ絞り径: 70 µm |
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: 64 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 3128 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 182970 / 対称性のタイプ: POINT |