+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8z7n | ||||||
---|---|---|---|---|---|---|---|
タイトル | Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules | ||||||
![]() |
| ||||||
![]() | VIRUS / HIV-1 / CRF_07BC / Env / CD4 | ||||||
機能・相同性 | ![]() 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 / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of kinase activity / 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 / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of kinase activity / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / 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 / Co-inhibition by PD-1 / positive regulation of protein kinase activity / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / host cell endosome membrane / protein tyrosine kinase binding / T cell activation / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / positive regulation of T cell activation / cell surface receptor protein tyrosine kinase signaling pathway / positive regulation of peptidyl-tyrosine phosphorylation / transmembrane signaling receptor activity / MHC class II protein complex binding / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / virus receptor activity / defense response to Gram-negative bacterium / positive regulation of canonical NF-kappaB signal transduction / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of MAPK cascade / positive regulation of ERK1 and ERK2 cascade / positive regulation of protein phosphorylation / early endosome / positive regulation of viral entry into host cell / cell surface receptor signaling pathway / viral protein processing / cell adhesion / immune response / membrane raft / endoplasmic reticulum lumen / external side of plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / lipid binding / : / viral envelope / endoplasmic reticulum membrane / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / membrane / plasma membrane 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: 3.58 Å | ||||||
![]() | Li, D. / Wang, T. | ||||||
資金援助 | ![]()
| ||||||
![]() | ![]() タイトル: Intermediate open state of CD4-bound HIV-1 env heterotrimers in asia CRFs. 著者: Dan Li / Li Liu / Xuejun Ye / Yuyang Chen / Qiaoju Ren / ShaoJian Xu / Yan Ren / He Cao / Tao Wang / ![]() 要旨: The HIV-1 envelope glycoprotein (Env) plays crucial role in viral infection by facilitating viral attachment to host cells and inducing fusion of the virus with the host cell membrane. This fusion ...The HIV-1 envelope glycoprotein (Env) plays crucial role in viral infection by facilitating viral attachment to host cells and inducing fusion of the virus with the host cell membrane. This fusion allows the HIV-1 viral genome to enter the target cell then triggering various stages of the viral life cycle. The native Env directly interacts with the main receptor CD4 and the co-receptor (CCR5 or CXCR4) in human cell membrane then induces membrane fusion. The elucidation of the structure of Env with CD4 and co-receptors in different HIV-1 subtypes is essential for the understanding of the mechanism of virus entry. Here we report the Cryo-EM structure of the CD4-bound HIV-1 heterotrimeric Env from Asia prevalent CRF07_BC CH119 strain. In this structure, the binding of three CD4 molecules with Env induced extensively conformational changes in gp120, resulting in the transformation of the Env from close state to intermediate open state. Additionally, the conformational shift of V1/V2 loops of the heterotrimeric Env allosterically expose the V3 loop and promoting the further interactions with co-receptor CCR5 or CXCR4. These findings not only illustrate the structural complexity and plasticity of HIV-1 Env but also give new insights how the biological trimeric Env initialize the immune recognition and membrane fusion. | ||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 400.1 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 310.6 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 | ![]() | 1.8 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 1.9 MB | 表示 | |
XML形式データ | ![]() | 92.4 KB | 表示 | |
CIF形式データ | ![]() | 132.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 39820MC 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 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
#1: タンパク質 | 分子量: 58258.125 Da / 分子数: 3 / 変異: A507C / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: env / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() #2: タンパク質 | 分子量: 18285.703 Da / 分子数: 3 / 変異: I48P,T94C / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: env / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() #3: タンパク質 | 分子量: 44675.320 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | Has protein modification | Y | |
---|
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
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 | 名称: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
---|---|
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
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 |
---|---|
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): 2400 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 50.8 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-
解析
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: 3.58 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1045667 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
|