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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Human APOBEC3H bound to HIV-1 Vif in complex with CBF-beta, ELOB, ELOC, and CUL5 | |||||||||
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![]() | virus-host protein complex / ANTIVIRAL PROTEIN | |||||||||
機能・相同性 | ![]() RUNX3 regulates RUNX1-mediated transcription / RUNX1 regulates transcription of genes involved in BCR signaling / mRNA Editing: C to U Conversion / Formation of the Editosome / 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 ...RUNX3 regulates RUNX1-mediated transcription / RUNX1 regulates transcription of genes involved in BCR signaling / mRNA Editing: C to U Conversion / Formation of the Editosome / 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 / negative regulation of single stranded viral RNA replication via double stranded DNA intermediate / DNA cytosine deamination / cytidine to uridine editing / host-mediated suppression of viral genome replication / lymphocyte differentiation / clearance of foreign intracellular DNA / RUNX1 and FOXP3 control the development of regulatory T lymphocytes (Tregs) / cytidine deaminase activity / 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 / cullin-RING ubiquitin ligase complex / RUNX3 Regulates Immune Response and Cell Migration / myeloid cell differentiation / target-directed miRNA degradation / elongin complex / definitive hemopoiesis / RUNX1 regulates transcription of genes involved in differentiation of myeloid cells / Regulation of RUNX1 Expression and Activity / VCB complex / Cul5-RING ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / RUNX1 regulates transcription of genes involved in WNT signaling / RUNX1 regulates estrogen receptor mediated transcription / 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 / proteasomal protein catabolic process / cell maturation / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / viral life cycle / RNA Polymerase II Pre-transcription Events / transcription corepressor binding / Vif-mediated degradation of APOBEC3G / Regulation of RUNX3 expression and activity / TP53 Regulates Transcription of DNA Repair Genes / Inactivation of CSF3 (G-CSF) signaling / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / P-body / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Regulation of expression of SLITs and ROBOs / virion component / Regulation of RUNX2 expression and activity / Transcriptional regulation of granulopoiesis / protein polyubiquitination / osteoblast differentiation / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Neddylation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / protein-containing complex assembly / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / defense response to virus / Estrogen-dependent gene expression / sequence-specific DNA binding / transcription by RNA polymerase II / host cell cytoplasm / transcription coactivator activity / protein ubiquitination / innate immune response / 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 / nucleus / membrane / cytosol / cytoplasm 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: 3.24 Å | |||||||||
![]() | Ito F / Alvarez-Cabrera AL / Zhou ZH / Chen XS | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis of HIV-1 Vif-mediated E3 ligase targeting of host APOBEC3H. 著者: Fumiaki Ito / Ana L Alvarez-Cabrera / Kyumin Kim / Z Hong Zhou / Xiaojiang S Chen / ![]() 要旨: Human APOBEC3 (A3) cytidine deaminases are antiviral factors that are particularly potent against retroviruses. As a countermeasure, HIV-1 uses a viral infectivity factor (Vif) to target specific ...Human APOBEC3 (A3) cytidine deaminases are antiviral factors that are particularly potent against retroviruses. As a countermeasure, HIV-1 uses a viral infectivity factor (Vif) to target specific human A3s for proteasomal degradation. Vif recruits cellular transcription cofactor CBF-β and Cullin-5 (CUL5) RING E3 ubiquitin ligase to bind different A3s distinctively, but how this is accomplished remains unclear in the absence of the atomic structure of the complex. Here, we present the cryo-EM structures of HIV-1 Vif in complex with human A3H, CBF-β and components of CUL5 ubiquitin ligase (CUL5, ELOB, and ELOC). Vif nucleates the entire complex by directly binding four human proteins, A3H, CBF-β, CUL5, and ELOC. The structures reveal a large interface area between A3H and Vif, primarily mediated by an α-helical side of A3H and a five-stranded β-sheet of Vif. This A3H-Vif interface unveils the basis for sensitivity-modulating polymorphism of both proteins, including a previously reported gain-of-function mutation in Vif isolated from HIV/AIDS patients. Our structural and functional results provide insights into the remarkable interplay between HIV and humans and would inform development efforts for anti-HIV therapeutics. | |||||||||
履歴 |
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構造の表示
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マップデータ | ![]() | 1.3 GB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 27.2 KB 27.2 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 23.8 KB | 表示 | ![]() |
画像 | ![]() | 86.1 KB | ||
Filedesc metadata | ![]() | 7.5 KB | ||
その他 | ![]() ![]() | 1.3 GB 1.3 GB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1 MB | 表示 | |
XML形式データ | ![]() | 33.5 KB | 表示 | |
CIF形式データ | ![]() | 44.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-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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ボクセルのサイズ | X=Y=Z: 0.51 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 : Hetero-hexameric complex of HIV-1 Vif and human APOBEC3H, CBF-bet...
+超分子 #1: Hetero-hexameric complex of HIV-1 Vif and human APOBEC3H, CBF-bet...
+分子 #1: Core-binding factor subunit beta
+分子 #2: Virion infectivity factor
+分子 #3: DNA dC->dU-editing enzyme APOBEC-3H
+分子 #6: Cullin 5
+分子 #7: Elongin-B
+分子 #8: Elongin-C
+分子 #4: RNA(5'-R(AP*UP*UP*UP*UP*UP*UP*UP*UP*U)-3')
+分子 #5: RNA(5'-R(*AP*AP*AP*AP*AP*AP*AP*AP*A)-3')
+分子 #9: ZINC ION
+分子 #10: water
-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 | 0.15 mg/mL |
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緩衝液 | pH: 7.5 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV |
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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) / 撮影したグリッド数: 1 / 実像数: 14725 / 平均露光時間: 3.5 sec. / 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 | 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): 3.0 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 165000 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |