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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: 9cnv | ||||||||||||||||||||||||
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| タイトル | HIV-2 CA hexamer bound with CPSF6 peptide; assembled via liposome templating | ||||||||||||||||||||||||
要素 |
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キーワード | VIRAL PROTEIN / HIV-2 / Capsid / IP6 / CPSF6 | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報exon-exon junction complex binding / HIV-2 retropepsin / positive regulation of RNA export from nucleus / mRNA cleavage factor complex / co-transcriptional mRNA 3'-end processing, cleavage and polyadenylation pathway / interchromatin granule / perichromatin fibrils / Processing of Intronless Pre-mRNAs / mRNA alternative polyadenylation / mRNA cleavage and polyadenylation specificity factor complex ...exon-exon junction complex binding / HIV-2 retropepsin / positive regulation of RNA export from nucleus / mRNA cleavage factor complex / co-transcriptional mRNA 3'-end processing, cleavage and polyadenylation pathway / interchromatin granule / perichromatin fibrils / Processing of Intronless Pre-mRNAs / mRNA alternative polyadenylation / mRNA cleavage and polyadenylation specificity factor complex / mRNA 3'-end processing / Signaling by cytosolic FGFR1 fusion mutants / paraspeckles / mRNA 3'-end processing / RNA Polymerase II Transcription Termination / protein heterotetramerization / ribosomal large subunit binding / Processing of Capped Intron-Containing Pre-mRNA / Signaling by FGFR1 in disease / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / protein tetramerization / DNA integration / viral genome integration into host DNA / establishment of integrated proviral latency / RNA-directed DNA polymerase / RNA stem-loop binding / viral penetration into host nucleus / host multivesicular body / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / mRNA processing / 転移酵素; リンを含む基を移すもの; 核酸を移すもの / host cell / viral nucleocapsid / DNA recombination / DNA-directed DNA polymerase / aspartic-type endopeptidase activity / 加水分解酵素; エステル加水分解酵素 / DNA-directed DNA polymerase activity / nuclear speck / ribonucleoprotein complex / symbiont-mediated suppression of host gene expression / viral translational frameshifting / mRNA binding / symbiont entry into host cell / lipid binding / host cell plasma membrane / host cell nucleus / virion membrane / structural molecule activity / proteolysis / DNA binding / RNA binding / zinc ion binding / nucleoplasm / membrane / nucleus / cytoplasm 類似検索 - 分子機能 | ||||||||||||||||||||||||
| 生物種 | Human immunodeficiency virus 2 (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: 3.16 Å | ||||||||||||||||||||||||
データ登録者 | Cook, M. / Freniere, C. / Xiong, Y. | ||||||||||||||||||||||||
| 資金援助 | 米国, 3件
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引用 | ジャーナル: Cell Rep / 年: 2025タイトル: Structural insights into HIV-2 CA lattice formation and FG-pocket binding revealed by single-particle cryo-EM. 著者: Matthew Cook / Christian Freniere / Chunxiang Wu / Faith Lozano / Yong Xiong / ![]() 要旨: One of the striking features of human immunodeficiency virus (HIV) is the capsid, a fullerene cone comprised of pleomorphic capsid protein (CA) that shields the viral genome and recruits cofactors. ...One of the striking features of human immunodeficiency virus (HIV) is the capsid, a fullerene cone comprised of pleomorphic capsid protein (CA) that shields the viral genome and recruits cofactors. Despite significant advances in understanding the mechanisms of HIV-1 CA assembly and host factor interactions, HIV-2 CA assembly remains poorly understood. By templating the assembly of HIV-2 CA on functionalized liposomes, we report high-resolution structures of the HIV-2 CA lattice, including both CA hexamers and pentamers, alone and with peptides of host phenylalanine-glycine (FG)-motif proteins Nup153 and CPSF6. While the overall fold and mode of FG-peptide binding is conserved with HIV-1, this study reveals distinctive features of the HIV-2 CA lattice, including differing structural character at regions of host factor interactions and divergence in the mechanism of formation of CA hexamers and pentamers. This study extends our understanding of HIV capsids and highlights an approach facilitating the study of lentiviral capsid biology. | ||||||||||||||||||||||||
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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 | 9cnv.cif.gz | 55.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9cnv.ent.gz | 37.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9cnv.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/cn/9cnv ftp://data.pdbj.org/pub/pdb/validation_reports/cn/9cnv | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 45761MC ![]() 9cljC ![]() 9cnsC ![]() 9cntC ![]() 9cnuC 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 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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| 1 | x 6![]()
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| 対称性 | 点対称性: (シェーンフリース記号: C1 (非対称)) |
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要素
| #1: タンパク質 | 分子量: 26809.490 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: HIV-2 capsid protein with C-terminal Gly-Ser-Ser linker to hexahistidine tag following proteolytic processing of the N-terminal Met. 由来: (組換発現) Human immunodeficiency virus 2 (ヒト免疫不全ウイルス)株: GL-AN / 遺伝子: gag-pol / 発現宿主: ![]() | ||||
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| #2: タンパク質・ペプチド | 分子量: 1550.796 Da / 分子数: 1 / Mutation: Delta(1-312) and Delta(328-358) / 由来タイプ: 合成 / 詳細: Truncation peptide of CPSF6 (313-327) / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: Q16630 | ||||
| #3: 化合物 | | 研究の焦点であるリガンドがあるか | N | Has protein modification | N | |
-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 |
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| 分子量 | 値: 0.0269 MDa / 実験値: NO | ||||||||||||||||||||||||||||
| 由来(天然) |
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| 由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||||||||||
| 緩衝液 | pH: 7 詳細: The mixed buffer of storage buffer for the protein and lipid components with IP6 supplemented. | ||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 10.7 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Sample was prepared with 400 uM HIV-2 CA-6xHis protein, 5.9 mM lipid mix (described in publication), and 4 mM IP6 as final concentrations following subsequent addition of CPSF6 peptide. After ...詳細: Sample was prepared with 400 uM HIV-2 CA-6xHis protein, 5.9 mM lipid mix (described in publication), and 4 mM IP6 as final concentrations following subsequent addition of CPSF6 peptide. After assembly, CPSF6 was added to a final concentration of 400 uM. Sample was well-distributed on the grid, mostly monodisperse. Perhaps slightly more particles on carbon versus in the hole. | ||||||||||||||||||||||||||||
| 試料支持 | 詳細: 15 mA discharge current. / グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | ||||||||||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 298 K 詳細: Grids were dual-side blotted with blot force 0 for 5.5 sec before plunge freezing in liquid 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 / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm / C2レンズ絞り径: 30 µm / アライメント法: COMA FREE |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
| 電子光学装置 | エネルギーフィルター名称: GIF Quantum LS / エネルギーフィルタースリット幅: 15 eV |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 23033474 | ||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C6 (6回回転対称) | ||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.16 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 2537344 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: OTHER / 空間: REAL / Target criteria: Cross-correlation coefficient 詳細: The HIV-2 CA pentamer chain derived from micelle-templated icosahedra described in this publication was used as an initial model for fitting. Flexible fitting was used to move the CTD into ...詳細: The HIV-2 CA pentamer chain derived from micelle-templated icosahedra described in this publication was used as an initial model for fitting. Flexible fitting was used to move the CTD into its proper location. Backbone tracing was used to model the CPSF6 peptide. | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | Accession code: 9CLJ / Chain residue range: 1-223 / 詳細: NTDs matched well, but the CTD had to be realigned. / Source name: Other / タイプ: experimental model |
ムービー
コントローラー
万見について




Human immunodeficiency virus 2 (ヒト免疫不全ウイルス)
Homo sapiens (ヒト)
米国, 3件
引用











PDBj












FIELD EMISSION GUN