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基本情報
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タイトル | Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules | |||||||||
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![]() | HIV-1 / CRF_07BC / Env / CD4 / VIRUS | |||||||||
機能・相同性 | ![]() 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 / response to vitamin D / regulation of T cell activation / 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 calcium ion transport into cytosol / positive regulation of protein kinase activity / regulation of calcium ion transport / Generation of second messenger molecules / macrophage differentiation / T cell differentiation / immunoglobulin binding / 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 / protein tyrosine kinase binding / cell surface receptor protein tyrosine kinase signaling pathway / Vpu mediated degradation of CD4 / host cell endosome membrane / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / positive regulation of protein phosphorylation / MHC class II protein complex binding / Cargo recognition for clathrin-mediated endocytosis / Downstream TCR signaling / transmembrane signaling receptor activity / Clathrin-mediated endocytosis / response to estradiol / signaling receptor activity / 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 / lipid binding / viral envelope / endoplasmic reticulum membrane / symbiont entry into host cell / 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 | 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 | ![]()
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![]() | ![]() 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. | |||||||||
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マップデータ | ![]() | 450.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 19.1 KB 19.1 KB | 表示 表示 | ![]() |
画像 | ![]() | 23.3 KB | ||
Filedesc metadata | ![]() | 6.4 KB | ||
その他 | ![]() ![]() | 441.9 MB 441.9 MB | ||
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-検証レポート
文書・要旨 | ![]() | 976.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 976.1 KB | 表示 | |
XML形式データ | ![]() | 18.2 KB | 表示 | |
CIF形式データ | ![]() | 21.7 KB | 表示 | |
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-関連構造データ
関連構造データ | ![]() 8z7nMC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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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: 0.83 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_39820_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_39820_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 mol...
全体 | 名称: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules |
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要素 |
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-超分子 #1: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 mol...
超分子 | 名称: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 |
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由来(天然) | 生物種: ![]() ![]() |
-分子 #1: Envelope glycoprotein gp160
分子 | 名称: Envelope glycoprotein gp160 / タイプ: protein_or_peptide / ID: 1 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 58.258125 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MDAMKRGLCC VLLLCGAVFV SPSQEIHARF RRGARAVGNL WVTVYYGVPV WKEATTTLFC ASDAKAYDTE VHNVWATHAC VPTDPSPQE LVLENVTENF NMWKNEMVNQ MHEDVISLWD QSLKPCVKLT PLCVTLECSK VSNNETDKYN GTEEMKNCSF N ATTVVRDR ...文字列: MDAMKRGLCC VLLLCGAVFV SPSQEIHARF RRGARAVGNL WVTVYYGVPV WKEATTTLFC ASDAKAYDTE VHNVWATHAC VPTDPSPQE LVLENVTENF NMWKNEMVNQ MHEDVISLWD QSLKPCVKLT PLCVTLECSK VSNNETDKYN GTEEMKNCSF N ATTVVRDR QQKVYALFYR LDIVPLTEKN SSENSSKYYR LINCNTSAIT QACPKVSFEP IPIHYCTPAG YAILKCNDKT FN GTGPCHN VSTVQCTHGI KPVVSTQLLL NGSLAEGEII IRSENLTNNV KTILVHLNQS VEIVCTRPNN NTRKSIRIGP GQT FYATGD IIGDIRQAHC NISKWHETLK RVSEKLAEHF PNKTINFTSS SGGDLEITTH SFTCRGEFFY CNTSGLFNST YMPN GTYLH GDTNSNSSIT IPCRIKQIIN MWQEVGRAMY APPIEGNITC KSNITGLLLV RDGGTESNNT ETNNTEIFRP GGGDM RDNW RSELYKYKVV EIKPLGVAPT ACKRRVVERR RRRR UniProtKB: Envelope glycoprotein gp160 |
-分子 #2: Envelope glycoprotein gp160
分子 | 名称: Envelope glycoprotein gp160 / タイプ: protein_or_peptide / ID: 2 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 18.285703 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: AVGIGAVFLG FLGVAGSTMG AASMTLTVQA RQLLSGIVQQ QSNLLRAPEA QQHLLQLTVW GIKQLQTRVL AIERYLKDQQ LLGIWGCSG KLICCTAVPW NSSWSNKSQK EIWDNMTWMQ WDKEISNYTN TIYKLLEDSQ NQQESNEKDL LALDGGGGGH H HHHH UniProtKB: Envelope glycoprotein gp160 |
-分子 #3: T-cell surface glycoprotein CD4
分子 | 名称: T-cell surface glycoprotein CD4 / タイプ: protein_or_peptide / ID: 3 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 44.67532 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MNRGVPFRHL LLVLQLALLP AATQGKKVVL GKKGDTVELT CTASQKKSIQ FHWKNSNQIK ILGNQGSFLT KGPSKLNDRA DSRRSLWDQ GNFPLIIKNL KIEDSDTYIC EVEDQKEEVQ LLVFGLTANS DTHLLQGQSL TLTLESPPGS SPSVQCRSPR G KNIQGGKT ...文字列: MNRGVPFRHL LLVLQLALLP AATQGKKVVL GKKGDTVELT CTASQKKSIQ FHWKNSNQIK ILGNQGSFLT KGPSKLNDRA DSRRSLWDQ GNFPLIIKNL KIEDSDTYIC EVEDQKEEVQ LLVFGLTANS DTHLLQGQSL TLTLESPPGS SPSVQCRSPR G KNIQGGKT LSVSQLELQD SGTWTCTVLQ NQKKVEFKID IVVLAFQKAS SIVYKKEGEQ VEFSFPLAFT VEKLTGSGEL WW QAERASS SKSWITFDLK NKEVSVKRVT QDPKLQMGKK LPLHLTLPQA LPQYAGSGNL TLALEAKTGK LHQEVNLVVM RAT QLQKNL TCEVWGPTSP KLMLSLKLEN KEAKVSKREK AVWVLNPEAG MWQCLLSDSG QVLLESNIKV LPTWSTGSGH HHHH H UniProtKB: T-cell surface glycoprotein CD4 |
-分子 #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 4 / コピー数: 18 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 1 mg/mL |
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緩衝液 | pH: 7.5 |
凍結 | 凍結剤: ETHANE |
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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 K3 (6k x 4k) / 平均電子線量: 50.8 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.4 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
初期モデル | モデルのタイプ: NONE |
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最終 再構成 | 想定した対称性 - 点群: C1 (非対称) / 解像度のタイプ: BY AUTHOR / 解像度: 3.58 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 1045667 |
初期 角度割当 | タイプ: RANDOM ASSIGNMENT |
最終 角度割当 | タイプ: PROJECTION MATCHING |