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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Gag CA-SP1 immature lattice bound with Lenacapavir and Bevirimat from enveloped virus like particles | |||||||||
![]() | The physical pixel size is 1.068 | |||||||||
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![]() | HIV-1 / Gag / CA-SP1 / Inhibitor / virion assembly / VIRUS LIKE PARTICLE | |||||||||
機能・相同性 | ![]() Synthesis And Processing Of GAG, GAGPOL Polyproteins / host cellular component / host cell nuclear membrane / Integration of viral DNA into host genomic DNA / Autointegration results in viral DNA circles / Minus-strand DNA synthesis / Plus-strand DNA synthesis / 2-LTR circle formation / Uncoating of the HIV Virion / Vpr-mediated nuclear import of PICs ...Synthesis And Processing Of GAG, GAGPOL Polyproteins / host cellular component / host cell nuclear membrane / Integration of viral DNA into host genomic DNA / Autointegration results in viral DNA circles / Minus-strand DNA synthesis / Plus-strand DNA synthesis / 2-LTR circle formation / Uncoating of the HIV Virion / Vpr-mediated nuclear import of PICs / viral budding via host ESCRT complex / Early Phase of HIV Life Cycle / Integration of provirus / APOBEC3G mediated resistance to HIV-1 infection / Binding and entry of HIV virion / Membrane binding and targetting of GAG proteins / Assembly Of The HIV Virion / Budding and maturation of HIV virion / host multivesicular body / viral nucleocapsid / viral translational frameshifting / host cell plasma membrane / virion membrane / structural molecule activity / RNA binding / zinc ion binding / 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: 2.1 Å | |||||||||
![]() | Wu C / Meuser ME / Xiong Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into inhibitor mechanisms on immature HIV-1 Gag lattice revealed by high-resolution single-particle cryo-EM. 著者: Chunxiang Wu / Megan E Meuser / Juan S Rey / Hamed Meshkin / Rachel Yang / Swapnil Chandrakant Devarkar / Christian Freniere / Jiong Shi / Christopher Aiken / Juan R Perilla / Yong Xiong / ![]() 要旨: HIV-1 inhibitors, such as Bevirimat (BVM) and Lenacapavir (LEN), block the production and maturation of infectious virions. However, their mechanisms remain unclear due to the absence of high- ...HIV-1 inhibitors, such as Bevirimat (BVM) and Lenacapavir (LEN), block the production and maturation of infectious virions. However, their mechanisms remain unclear due to the absence of high-resolution structures for BVM complexes and LEN's structural data being limited to the mature capsid. Utilizing perforated virus-like particles (VLPs) produced from mammalian cells, we developed an approach to determine cryo-electron microscopy (cryo-EM) structures of HIV-1 with inhibitors. This allowed for the first structural determination of the native immature HIV-1 particle with BVM and LEN bound inside the VLPs at high resolutions. Our findings offer a more accurate model of BVM engaging the Gag lattice and, importantly, demonstrate that LEN not only binds the mature capsid but also targets the immature lattice in a distinct manner. The binding of LEN induces a conformational change in the capsid protein (CA) region and alters the architecture of the Gag lattice, which may affect the maturation process. These insights expand our understanding of the inhibitory mechanisms of BVM and LEN on HIV-1 and provide valuable clues for the design of future inhibitors. | |||||||||
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FSC (解像度算出) | ![]() | 11 KB | 表示 | ![]() |
画像 | ![]() | 250.4 KB | ||
マスクデータ | ![]() | 144.7 MB | ![]() | |
Filedesc metadata | ![]() | 6.9 KB | ||
その他 | ![]() ![]() ![]() | 134.8 MB 131 MB 131 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 999.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 999.1 KB | 表示 | |
XML形式データ | ![]() | 18.8 KB | 表示 | |
CIF形式データ | ![]() | 24.3 KB | 表示 | |
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-関連構造データ
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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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注釈 | The physical pixel size is 1.068 | ||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.894 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
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試料の構成要素
-全体 : Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE)
全体 | 名称: ![]() |
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要素 |
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-超分子 #1: Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE)
超分子 | 名称: Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE) タイプ: virus / ID: 1 / 親要素: 0 / 含まれる分子: #1 詳細: A codon-optimized Gag plasmid with T8I mutation in the SP1 domain (pCMV-Gag-opt) was expressed in HEK293T cells. The enveloped virion like particles were purified by filtration and ...詳細: A codon-optimized Gag plasmid with T8I mutation in the SP1 domain (pCMV-Gag-opt) was expressed in HEK293T cells. The enveloped virion like particles were purified by filtration and ultracentrifugation, and directly used as cryo-EM sample. NCBI-ID: 11698 生物種: Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE) Sci species strain: Clone pNL4-3 / ウイルスタイプ: VIRUS-LIKE PARTICLE / ウイルス・単離状態: STRAIN / ウイルス・エンベロープ: Yes / ウイルス・中空状態: Yes |
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宿主 | 生物種: ![]() |
ウイルス殻 | Shell ID: 1 / 名称: Gag |
-分子 #1: Gag
分子 | 名称: Gag / タイプ: protein_or_peptide / ID: 1 / コピー数: 18 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() 株: isolate HXB2 |
分子量 | 理論値: 25.700475 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: QMVHQAISPR TLNAWVKVVE EKAFSPEVIP MFSALSEGAT PQDLNTMLNT VGGHQAAMQM LKETINEEAA EWDRVHPVHA GPIAPGQMR EPRGSDIAGT TSTLQEQIGW MTNNPPIPVG EIYKRWIILG LNKIVRMYSP TSILDIRQGP KEPFRDYVDR F YKTLRAEQ ...文字列: QMVHQAISPR TLNAWVKVVE EKAFSPEVIP MFSALSEGAT PQDLNTMLNT VGGHQAAMQM LKETINEEAA EWDRVHPVHA GPIAPGQMR EPRGSDIAGT TSTLQEQIGW MTNNPPIPVG EIYKRWIILG LNKIVRMYSP TSILDIRQGP KEPFRDYVDR F YKTLRAEQ ASQEVKNWMT ETLLVQNANP DCKTILKALG PAATLEEMMT ACQGVGGPGH KARVLAEAMS QVIN UniProtKB: Gag polyprotein |
-分子 #2: Lenacapavir
分子 | 名称: Lenacapavir / タイプ: ligand / ID: 2 / コピー数: 18 / 式: QNG |
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分子量 | 理論値: 968.282 Da |
-分子 #3: 3alpha-[(3-carboxy-3-methylbutanoyl)oxy]-8alpha,9beta,10alpha,13a...
分子 | 名称: 3alpha-[(3-carboxy-3-methylbutanoyl)oxy]-8alpha,9beta,10alpha,13alpha,17alpha,19beta-lup-20(29)-en-28-oic acid タイプ: ligand / ID: 3 / コピー数: 7 / 式: 2I4 |
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分子量 | 理論値: 584.826 Da |
Chemical component information | ![]() ChemComp-2I4: |
-分子 #4: INOSITOL HEXAKISPHOSPHATE
分子 | 名称: INOSITOL HEXAKISPHOSPHATE / タイプ: ligand / ID: 4 / コピー数: 7 / 式: IHP |
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分子量 | 理論値: 660.035 Da |
Chemical component information | ![]() ChemComp-IHP: |
-分子 #5: water
分子 | 名称: water / タイプ: ligand / ID: 5 / コピー数: 378 / 式: HOH |
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分子量 | 理論値: 18.015 Da |
Chemical component information | ![]() ChemComp-HOH: |
-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 | 2 mg/mL | ||||||||||||
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緩衝液 | pH: 7.4 構成要素:
詳細: This is the final buffer in which the enveloped viral like particle was resuspended. The Gag-CA-SP1 lattice is inside the viral like particle and thus not in the direct environment of this buffer. | ||||||||||||
グリッド | モデル: Quantifoil R2/1 / 材質: COPPER / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 30 sec. / 詳細: 15 mA current | ||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 295 K / 装置: FEI VITROBOT MARK III | ||||||||||||
詳細 | A codon-optimized Gag plasmid with T8I mutation in the SP1 domain (pCMV-Gag-opt) was expressed in HEK293T cells. The enveloped virion like particles were purified by filtration and ultracentrifugation, and directly used as cryo-EM sample. |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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ソフトウェア | 名称: SerialEM |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 1.2 µm / 倍率(公称値): 81000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |