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基本情報
登録情報 | ![]() | |||||||||
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タイトル | The cryo-EM structure of PPP2R5A/HIV-1 Vif/CBFb/EloB/EloC complex | |||||||||
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![]() | HIV Vif / Cul5 E3 ligase / PPP2R5A / VIRAL PROTEIN | |||||||||
機能・相同性 | ![]() 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 / negative regulation of CD4-positive, alpha-beta T cell differentiation / protein phosphatase type 2A complex ...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 / negative regulation of CD4-positive, alpha-beta T cell differentiation / protein phosphatase type 2A complex / lymphocyte differentiation / RUNX1 and FOXP3 control the development of regulatory T lymphocytes (Tregs) / RUNX2 regulates genes involved in cell migration / RUNX2 regulates genes involved in differentiation of myeloid cells / Transcriptional regulation by RUNX2 / protein phosphatase regulator activity / RUNX1 regulates transcription of genes involved in differentiation of keratinocytes / myeloid cell differentiation / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / RUNX3 Regulates Immune Response and Cell Migration / target-directed miRNA degradation / VCB complex / elongin complex / Beta-catenin phosphorylation cascade / Signaling by GSK3beta mutants / CTNNB1 S33 mutants aren't phosphorylated / CTNNB1 S37 mutants aren't phosphorylated / CTNNB1 S45 mutants aren't phosphorylated / CTNNB1 T41 mutants aren't phosphorylated / definitive hemopoiesis / Co-stimulation by CD28 / Regulation of RUNX1 Expression and Activity / RUNX1 regulates transcription of genes involved in differentiation of myeloid cells / M band / Disassembly of the destruction complex and recruitment of AXIN to the membrane / 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 / Co-inhibition by CTLA4 / Platelet sensitization by LDL / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / RUNX2 regulates osteoblast differentiation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / RUNX3 regulates p14-ARF / chromosome, centromeric region / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / negative regulation of protein localization to plasma membrane / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / cell maturation / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / viral life cycle / RNA Polymerase II Pre-transcription Events / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / transcription corepressor binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / RHO GTPases Activate Formins / RAF activation / Vif-mediated degradation of APOBEC3G / Regulation of RUNX3 expression and activity / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Inactivation of CSF3 (G-CSF) signaling / PKR-mediated signaling / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Z disc / virion component / kinase binding / Regulation of expression of SLITs and ROBOs / Transcriptional regulation of granulopoiesis / protein polyubiquitination / Negative regulation of MAPK pathway / Regulation of RUNX2 expression and activity / osteoblast differentiation / Separation of Sister Chromatids / 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 / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein-containing complex assembly / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / Estrogen-dependent gene expression / sequence-specific DNA binding / transcription by RNA polymerase II / host cell 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: 3.58 Å | |||||||||
![]() | Hu Y / Xiong Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into PPP2R5A degradation by HIV-1 Vif. 著者: Yingxia Hu / Krista A Delviks-Frankenberry / Chunxiang Wu / Fidel Arizaga / Vinay K Pathak / Yong Xiong / ![]() 要旨: HIV-1 Vif recruits host cullin-RING-E3 ubiquitin ligase and CBFβ to degrade the cellular APOBEC3 antiviral proteins through diverse interactions. Recent evidence has shown that Vif also degrades the ...HIV-1 Vif recruits host cullin-RING-E3 ubiquitin ligase and CBFβ to degrade the cellular APOBEC3 antiviral proteins through diverse interactions. Recent evidence has shown that Vif also degrades the regulatory subunits PPP2R5(A-E) of cellular protein phosphatase 2A to induce G2/M cell cycle arrest. As PPP2R5 proteins bear no functional or structural resemblance to A3s, it is unclear how Vif can recognize different sets of proteins. Here we report the cryogenic-electron microscopy structure of PPP2R5A in complex with HIV-1 Vif-CBFβ-elongin B-elongin C at 3.58 Å resolution. The structure shows PPP2R5A binds across the Vif molecule, with biochemical and cellular studies confirming a distinct Vif-PPP2R5A interface that partially overlaps with those for A3s. Vif also blocks a canonical PPP2R5A substrate-binding site, indicating that it suppresses the phosphatase activities through both degradation-dependent and degradation-independent mechanisms. Our work identifies critical Vif motifs regulating the recognition of diverse A3 and PPP2R5A substrates, whereby disruption of these host-virus protein interactions could serve as potential targets for HIV-1 therapeutics. | |||||||||
履歴 |
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構造の表示
添付画像 |
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-EMDBアーカイブ
マップデータ | ![]() | 27.3 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 20.1 KB 20.1 KB | 表示 表示 | ![]() |
画像 | ![]() | 44.3 KB | ||
Filedesc metadata | ![]() | 6.6 KB | ||
その他 | ![]() ![]() | 28.4 MB 28.4 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8szkMC M: このマップから作成された原子モデル 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 ![]() |
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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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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.1 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
-ハーフマップ: #2
ファイル | emd_40919_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_40919_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : PPP2R5A in complex with HIV-1 Vif/CBFb/EloB/EloC
全体 | 名称: PPP2R5A in complex with HIV-1 Vif/CBFb/EloB/EloC |
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要素 |
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-超分子 #1: PPP2R5A in complex with HIV-1 Vif/CBFb/EloB/EloC
超分子 | 名称: PPP2R5A in complex with HIV-1 Vif/CBFb/EloB/EloC / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Elongin-B
分子 | 名称: Elongin-B / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 13.147781 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MDVFLMIRRH KTTIFTDAKE SSTVFELKRI VEGILKRPPD EQRLYKDDQL LDDGKTLGEC GFTSQTARPQ APATVGLAFR ADDTFEALC IEPFSSPPEL PDVMKPQDSG SSANEQAVQ UniProtKB: Elongin-B |
-分子 #2: Elongin-C
分子 | 名称: Elongin-C / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 10.84342 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MYVKLISSDG HEFIVKREHA LTSGTIKAML SGPGQFAENE TNEVNFREIP SHVLSKVCMY FTYKVRYTNS STEIPEFPIA PEIALELLM AANFLDC UniProtKB: Elongin-C |
-分子 #3: Core-binding factor subunit beta
分子 | 名称: Core-binding factor subunit beta / タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 23.644197 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGSSHHHHHH SQDPMPRVVP DQRSKFENEE FFRKLSRECE IKYTGFRDRP HEERQARFQN ACRDGRSEIA FVATGTNLSL QFFPASWQG EQRQTPSREY VDLEREAGKV YLKAPMILNG VCVIWKGWID LQRLDGMGCL EFDEERAQQE DALAQQAFEE A RRRTREFE ...文字列: MGSSHHHHHH SQDPMPRVVP DQRSKFENEE FFRKLSRECE IKYTGFRDRP HEERQARFQN ACRDGRSEIA FVATGTNLSL QFFPASWQG EQRQTPSREY VDLEREAGKV YLKAPMILNG VCVIWKGWID LQRLDGMGCL EFDEERAQQE DALAQQAFEE A RRRTREFE DRDRSHREEM EARRQQDPSP GSNLGGGDDL KLR UniProtKB: Core-binding factor subunit beta |
-分子 #4: Virion infectivity factor
分子 | 名称: Virion infectivity factor / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 20.98224 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MENRWQVMIV WQVDRMRINT WKRLVKHHMY ISRKAKDWFY RHHYESTNPK ISSEVHIPLG DAKLVITTYW GLHTGERDWH LGQGVSIEW RKKRYSTQVD PDLADQLIHL HYFDCFSESA IRNTILGRIV SPRCEYQAGH NKVGSLQYLA LAALIKPKQI K PPLPSVRK LTEDRWNK UniProtKB: Virion infectivity factor |
-分子 #5: Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit...
分子 | 名称: Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 56.266555 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSSSSPPAGA ASAAISASEK VDGFTRKSVR KAQRQKRSQG SSQFRSQGSQ AELHPLPQLK DATSNEQQEL FCQKLQQCCI LFDFMDSVS DLKSKEIKRA TLNELVEYVS TNRGVIVESA YSDIVKMISA NIFRTLPPSD NPDFDPEEDE PTLEASWPHI Q LVYEFFLR ...文字列: MSSSSPPAGA ASAAISASEK VDGFTRKSVR KAQRQKRSQG SSQFRSQGSQ AELHPLPQLK DATSNEQQEL FCQKLQQCCI LFDFMDSVS DLKSKEIKRA TLNELVEYVS TNRGVIVESA YSDIVKMISA NIFRTLPPSD NPDFDPEEDE PTLEASWPHI Q LVYEFFLR FLESPDFQPS IAKRYIDQKF VQQLLELFDS EDPRERDFLK TVLHRIYGKF LGLRAFIRKQ INNIFLRFIY ET EHFNGVA ELLEILGSII NGFALPLKAE HKQFLMKVLI PMHTAKGLAL FHAQLAYCVV QFLEKDTTLT EPVIRGLLKF WPK TCSQKE VMFLGEIEEI LDVIEPTQFK KIEEPLFKQI SKCVSSSHFQ VAERALYFWN NEYILSLIEE NIDKILPIMF ASLY KISKE HWNPTIVALV YNVLKTLMEM NGKLFDDLTS SYKAERQREK KKELEREELW KKLEELKLKK ALEKQNSAYN MHSIL SNTS AE UniProtKB: Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform |
-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
緩衝液 | pH: 8 |
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凍結 | 凍結剤: ETHANE |
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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) / 平均電子線量: 60.0 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 / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 0.8 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |