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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: 8fae | |||||||||
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| タイトル | Asymmetric structure of cleaved HIV-1 AE2 envelope glycoprotein trimer in styrene-maleic acid lipid nanoparticles (AE2.1) | |||||||||
要素 | (Envelope glycoprotein ...) x 2 | |||||||||
キーワード | VIRAL PROTEIN / HIV-1 / envelope glycoprotein | |||||||||
| 機能・相同性 | 機能・相同性情報symbiont-mediated perturbation of host defense response / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell ...symbiont-mediated perturbation of host defense response / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / 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) | |||||||||
| 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: 3.8 Å | |||||||||
データ登録者 | Wang, K. / Zhang, S. / Sodroski, J. / Mao, Y. | |||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Commun Biol / 年: 2023タイトル: Asymmetric conformations of cleaved HIV-1 envelope glycoprotein trimers in styrene-maleic acid lipid nanoparticles. 著者: Kunyu Wang / Shijian Zhang / Eden P Go / Haitao Ding / Wei Li Wang / Hanh T Nguyen / John C Kappes / Heather Desaire / Joseph Sodroski / Youdong Mao / ![]() 要旨: During virus entry, the pretriggered human immunodeficiency virus (HIV-1) envelope glycoprotein (Env) trimer initially transits into a default intermediate state (DIS) that remains structurally ...During virus entry, the pretriggered human immunodeficiency virus (HIV-1) envelope glycoprotein (Env) trimer initially transits into a default intermediate state (DIS) that remains structurally uncharacterized. Here, we present cryo-EM structures at near-atomic resolution of two cleaved full-length HIV-1 Env trimers purified from cell membranes in styrene-maleic acid lipid nanoparticles without antibodies or receptors. The cleaved Env trimers exhibited tighter subunit packing than uncleaved trimers. Cleaved and uncleaved Env trimers assumed remarkably consistent yet distinct asymmetric conformations, with one smaller and two larger opening angles. Breaking conformational symmetry is allosterically coupled with dynamic helical transformations of the gp41 N-terminal heptad repeat (HR1) regions in two protomers and with trimer tilting in the membrane. The broken symmetry of the DIS potentially assists Env binding to two CD4 receptors-while resisting antibody binding-and promotes extension of the gp41 HR1 helical coiled-coil, which relocates the fusion peptide closer to the target cell membrane. | |||||||||
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構造の表示
| 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 | 8fae.cif.gz | 402 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8fae.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 8fae.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/fa/8fae ftp://data.pdbj.org/pub/pdb/validation_reports/fa/8fae | HTTPS FTP |
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-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
-Envelope glycoprotein ... , 2種, 6分子 BDFCEA
| #1: タンパク質 | 分子量: 16639.076 Da / 分子数: 3 / 変異: Q567K, A582T / 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)細胞株 (発現宿主): A549 / 器官 (発現宿主): lung / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O40222#2: タンパク質 | 分子量: 53025.961 Da / 分子数: 3 / 変異: Q114E / 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)細胞株 (発現宿主): A549 / 器官 (発現宿主): lung / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O40222 |
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-糖 , 16種, 73分子 
| #3: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose #5: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #6: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #7: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #8: 多糖 | #9: 多糖 | #10: 多糖 | alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose | #11: 多糖 | #12: 多糖 | #13: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #14: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #15: 多糖 | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #16: 多糖 | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[alpha-D- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #17: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #19: 糖 | |
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-非ポリマー , 1種, 3分子 
| #18: 化合物 |
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-詳細
| 研究の焦点であるリガンドがあるか | Y |
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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 |
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試料調製
| 構成要素 | 名称: HIV-1 Env AE2.1 / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: ![]() Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 8 |
| 試料 | 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 |
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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 / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 57 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 140035 / 対称性のタイプ: POINT |
ムービー
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)
米国, 2件
引用




PDBj




Homo sapiens (ヒト)
FIELD EMISSION GUN