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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: 5u1f | ||||||
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| タイトル | Initial contact of HIV-1 Env with CD4: Cryo-EM structure of BG505 DS-SOSIP trimer in complex with CD4 and antibody PGT145 | ||||||
要素 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / HIV-1 Entry early intermediate / CD4 binding site / VIRAL PROTEIN-IMMUNE SYSTEM complex | ||||||
| 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 / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / T cell selection / MHC class II protein binding / positive regulation of kinase activity / interleukin-15-mediated signaling pathway ...helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / T cell selection / MHC class II protein binding / positive regulation of kinase activity / interleukin-15-mediated signaling pathway / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / response to vitamin D / extracellular matrix structural constituent / Other interleukin signaling / T cell receptor complex / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / positive regulation of protein kinase activity / regulation of calcium ion transport / positive regulation of calcium ion transport into cytosol / macrophage differentiation / Generation of second messenger molecules / immunoglobulin binding / T cell differentiation / Co-inhibition by PD-1 / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of T cell proliferation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / host cell endosome membrane / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / positive regulation of protein phosphorylation / MHC class II protein complex binding / transmembrane signaling receptor activity / Downstream TCR signaling / response to estradiol / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / virus receptor activity / response to ethanol / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of canonical NF-kappaB signal transduction / cell adhesion / positive regulation of MAPK cascade / viral protein processing / immune response / membrane raft / endoplasmic reticulum lumen / fusion of virus membrane with host plasma membrane / external side of plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / lipid binding / symbiont entry into host cell / 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 | ![]() 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: 6.8 Å | ||||||
データ登録者 | Acharya, P. / Kwong, P.D. / Potter, C.S. / Carragher, B. | ||||||
引用 | ジャーナル: Nat Struct Mol Biol / 年: 2017タイトル: Quaternary contact in the initial interaction of CD4 with the HIV-1 envelope trimer. 著者: Qingbo Liu / Priyamvada Acharya / Michael A Dolan / Peng Zhang / Christina Guzzo / Jacky Lu / Alice Kwon / Deepali Gururani / Huiyi Miao / Tatsiana Bylund / Gwo-Yu Chuang / Aliaksandr Druz / ...著者: Qingbo Liu / Priyamvada Acharya / Michael A Dolan / Peng Zhang / Christina Guzzo / Jacky Lu / Alice Kwon / Deepali Gururani / Huiyi Miao / Tatsiana Bylund / Gwo-Yu Chuang / Aliaksandr Druz / Tongqing Zhou / William J Rice / Christoph Wigge / Bridget Carragher / Clinton S Potter / Peter D Kwong / Paolo Lusso / ![]() 要旨: Binding of the gp120 envelope (Env) glycoprotein to the CD4 receptor is the first step in the HIV-1 infectious cycle. Although the CD4-binding site has been extensively characterized, the initial ...Binding of the gp120 envelope (Env) glycoprotein to the CD4 receptor is the first step in the HIV-1 infectious cycle. Although the CD4-binding site has been extensively characterized, the initial receptor interaction has been difficult to study because of major CD4-induced structural rearrangements. Here we used cryogenic electron microscopy (cryo-EM) to visualize the initial contact of CD4 with the HIV-1 Env trimer at 6.8-Å resolution. A single CD4 molecule is embraced by a quaternary HIV-1-Env surface formed by coalescence of the previously defined CD4-contact region with a second CD4-binding site (CD4-BS2) in the inner domain of a neighboring gp120 protomer. Disruption of CD4-BS2 destabilized CD4-trimer interaction and abrogated HIV-1 infectivity by preventing the acquisition of coreceptor-binding competence. A corresponding reduction in HIV-1 infectivity occurred after the mutation of CD4 residues that interact with CD4-BS2. Our results document the critical role of quaternary interactions in the initial HIV-Env-receptor contact, with implications for treatment and vaccine design. | ||||||
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構造の表示
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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 | 5u1f.cif.gz | 446.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb5u1f.ent.gz | 308.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 5u1f.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 | 5u1f_validation.pdf.gz | 719.1 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 5u1f_full_validation.pdf.gz | 736.3 KB | 表示 | |
| XML形式データ | 5u1f_validation.xml.gz | 62.2 KB | 表示 | |
| CIF形式データ | 5u1f_validation.cif.gz | 101.1 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/u1/5u1f ftp://data.pdbj.org/pub/pdb/validation_reports/u1/5u1f | 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
| #1: タンパク質 | 分子量: 55875.484 Da / 分子数: 3 / 断片: UNP residues 29-502 / 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 / プラスミド: pVRC8400 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q2N0S6#2: タンパク質 | 分子量: 20202.158 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#3: 抗体 | | 分子量: 28953.285 Da / 分子数: 1 / 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: 26050.344 Da / 分子数: 1 / 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)#5: タンパク質 | | 分子量: 40455.477 Da / 分子数: 1 / 断片: UNP residues 26-388 / 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: P01730Has protein modification | Y | |
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-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
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| 緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
| 緩衝液成分 | 濃度: 5 mM / 名称: HEPES | ||||||||||||||||||||||||||||||
| 試料 | 濃度: 0.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Monodisperse specimen | ||||||||||||||||||||||||||||||
| 試料支持 | グリッドの材料: GOLD | ||||||||||||||||||||||||||||||
| 急速凍結 | 凍結剤: ETHANE |
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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: 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 |
| 撮影 | 電子線照射量: 8.6 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) 撮影したグリッド数: 3 / 実像数: 1900 |
| 画像スキャン | 動画フレーム数/画像: 40 / 利用したフレーム数/画像: 1-30 |
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解析
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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: 6.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 55000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / Target criteria: Correlation Coefficient | ||||||||||||||||||||||||||||||||
| 精密化 | 最高解像度: 6.8 Å |
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コントローラー
万見について





Human immunodeficiency virus 1 (ヒト免疫不全ウイルス)
Homo sapiens (ヒト)
引用
UCSF Chimera






PDBj





















