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基本情報
| 登録情報 | データベース: PDB / ID: 9e9v | ||||||||||||||||||||||||
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| タイトル | Structural Insights into HIV-1 Vif-Mediated Ubiquitination and Degradation of APOBEC3H | ||||||||||||||||||||||||
要素 |
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キーワード | VIRAL PROTEIN/RNA / APOBEC3H HIV-1 Vif / VIRAL PROTEIN / VIRAL PROTEIN-RNA complex | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報RUNX3 regulates RUNX1-mediated transcription / RUNX1 regulates transcription of genes involved in BCR signaling / RUNX1 regulates transcription of genes involved in interleukin signaling / RUNX2 regulates bone development / core-binding factor complex / RUNX1 regulates expression of components of tight junctions / positive regulation of CD8-positive, alpha-beta T cell differentiation / RUNX2 regulates chondrocyte maturation / single-stranded DNA cytosine deaminase / negative regulation of CD4-positive, alpha-beta T cell differentiation ...RUNX3 regulates RUNX1-mediated transcription / RUNX1 regulates transcription of genes involved in BCR signaling / RUNX1 regulates transcription of genes involved in interleukin signaling / RUNX2 regulates bone development / core-binding factor complex / RUNX1 regulates expression of components of tight junctions / positive regulation of CD8-positive, alpha-beta T cell differentiation / RUNX2 regulates chondrocyte maturation / single-stranded DNA cytosine deaminase / negative regulation of CD4-positive, alpha-beta T cell differentiation / clearance of foreign intracellular DNA / RUNX1 and FOXP3 control the development of regulatory T lymphocytes (Tregs) / cytidine deaminase activity / lymphocyte differentiation / RUNX2 regulates genes involved in cell migration / Transcriptional regulation by RUNX2 / RUNX2 regulates genes involved in differentiation of myeloid cells / RUNX1 regulates transcription of genes involved in differentiation of keratinocytes / transposable element silencing / RUNX3 Regulates Immune Response and Cell Migration / myeloid cell differentiation / definitive hemopoiesis / target-directed miRNA degradation / elongin complex / RUNX1 regulates transcription of genes involved in differentiation of myeloid cells / Regulation of RUNX1 Expression and Activity / VCB complex / Cul5-RING ubiquitin ligase complex / RUNX1 regulates transcription of genes involved in WNT signaling / RUNX1 regulates estrogen receptor mediated transcription / negative regulation of viral genome replication / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Cul2-RING ubiquitin ligase complex / RUNX2 regulates osteoblast differentiation / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / RUNX3 regulates p14-ARF / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / viral life cycle / cell maturation / RNA Polymerase II Pre-transcription Events / transcription corepressor binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / Regulation of RUNX3 expression and activity / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Vif-mediated degradation of APOBEC3G / Inactivation of CSF3 (G-CSF) signaling / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / virion component / Regulation of expression of SLITs and ROBOs / Transcriptional regulation of granulopoiesis / protein polyubiquitination / Regulation of RUNX2 expression and activity / osteoblast differentiation / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / protein-containing complex assembly / transcription by RNA polymerase II / Estrogen-dependent gene expression / sequence-specific DNA binding / defense response to virus / ubiquitin-dependent protein catabolic process / host cell cytoplasm / protein-macromolecule adaptor activity / transcription coactivator activity / protein ubiquitination / ubiquitin protein ligase binding / regulation of transcription by RNA polymerase II / host cell plasma membrane / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / RNA binding / zinc ion binding / nucleoplasm / membrane / cytoplasm / cytosol 類似検索 - 分子機能 | ||||||||||||||||||||||||
| 生物種 | ![]() Homo sapiens (ヒト)![]() 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: 4 Å | ||||||||||||||||||||||||
データ登録者 | Matsuo, H. / Skorupka, K.A. | ||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: HIV-1 vif mediates ubiquitination of the proximal protomer in the APOBEC3H dimer to induce degradation. 著者: Katarzyna A Skorupka / Kazuhiro Matsuoka / Bakar Hassan / Rodolfo Ghirlando / Vanivilasini Balachandran / Ting-Hua Chen / Kylie J Walters / Celia A Schiffer / Matthias Wolf / Yasumasa Iwatani ...著者: Katarzyna A Skorupka / Kazuhiro Matsuoka / Bakar Hassan / Rodolfo Ghirlando / Vanivilasini Balachandran / Ting-Hua Chen / Kylie J Walters / Celia A Schiffer / Matthias Wolf / Yasumasa Iwatani / Hiroshi Matsuo / ![]() 要旨: The APOBEC3 family of cytidine deaminases restricts retroviruses like HIV-1 by mutating viral DNA. HIV-1 evades this restriction by producing Vif, which recruits the Cullin-5 (CUL5) E3 ubiquitin ...The APOBEC3 family of cytidine deaminases restricts retroviruses like HIV-1 by mutating viral DNA. HIV-1 evades this restriction by producing Vif, which recruits the Cullin-5 (CUL5) E3 ubiquitin ligase complex to promote APOBEC3 degradation. Here we resolve key aspects of this counter-defense mechanism by determining a 3.6 Å cryo-EM structure of chimpanzee APOBEC3H (cpzA3H) in complex with HIV-1 Vif and three components of the CUL5 E3 ligase-CBFβ, EloB, and EloC (VCBC). The structure captures cpzA3H as an RNA-mediated dimer within the cpzA3H-VCBC complex, allowing us to examine the role of dimerization. We find that ubiquitination occurs specifically at two lysine residues on the Vif-proximal protomer, while the distal protomer remains unmodified. The structural model of the active cpzA3H-Vif-CUL5 E3 ligase holoenzyme reveals spatial preferences for ubiquitin transfer to the targeted lysine residues. These findings enhance our understanding of A3H degradation and suggest new antiviral strategies targeting this host-virus interface. | ||||||||||||||||||||||||
| 履歴 |
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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 | 9e9v.cif.gz | 255.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9e9v.ent.gz | 201.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9e9v.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/e9/9e9v ftp://data.pdbj.org/pub/pdb/validation_reports/e9/9e9v | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 47805MC ![]() 9e93C C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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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要素
-タンパク質 , 5種, 9分子 ABEnmptos
| #1: タンパク質 | 分子量: 21768.180 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: B7T0U6, single-stranded DNA cytosine deaminase #4: タンパク質 | | 分子量: 10843.420 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ELOC, TCEB1 / 発現宿主: ![]() #5: タンパク質 | | 分子量: 11488.030 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ELOB, TCEB2 / 発現宿主: ![]() #6: タンパク質 | 分子量: 20982.240 Da / 分子数: 2 / 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: vif / Variant: NL4-3 / 発現宿主: ![]() #7: タンパク質 | 分子量: 20272.629 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CBFB / 発現宿主: ![]() |
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-RNA鎖 , 2種, 4分子 DHCG
| #2: RNA鎖 | 分子量: 3159.965 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #3: RNA鎖 | 分子量: 2887.767 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-非ポリマー , 1種, 4分子 
| #8: 化合物 | ChemComp-ZN / |
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-詳細
| 研究の焦点であるリガンドがあるか | N |
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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: Ternary complex of APOBEC3H and Vif of HIV-1 / タイプ: COMPLEX / Entity ID: #2-#3 / 由来: MULTIPLE SOURCES | |||||||||||||||||||||||||
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| 由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
| 由来(組換発現) | 生物種: ![]() | |||||||||||||||||||||||||
| 緩衝液 | pH: 7.4 | |||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 0.3 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||
| 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: 281 K |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TECNAI ARCTICA |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 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): 2200 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: 50 µm / アライメント法: COMA FREE |
| 試料ホルダ | 凍結剤: NITROGEN |
| 撮影 | 電子線照射量: 45 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 3 / 実像数: 44142 |
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解析
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| CTF補正 | タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 215818 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | B value: 135 / プロトコル: RIGID BODY FIT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | 3D fitting-ID: 1 / Source name: PDB / タイプ: experimental model
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| 拘束条件 |
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ムービー
コントローラー
万見について





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

米国, 1件
引用




PDBj



















FIELD EMISSION GUN

