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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: 9cht | ||||||||||||
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| タイトル | Human E3 ligase E6AP in complex with HPV16-E6 and p53 | ||||||||||||
要素 |
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キーワード | LIGASE / Complex / Viral / Ubiquitination | ||||||||||||
| 機能・相同性 | 機能・相同性情報sperm entry / positive regulation of Golgi lumen acidification / symbiont-mediated suppression of host transcription / regulation of ubiquitin-dependent protein catabolic process / symbiont-mediated suppression of host apoptosis / prostate gland growth / HECT-type E3 ubiquitin transferase / negative regulation of helicase activity / Loss of function of TP53 in cancer due to loss of tetramerization ability / Regulation of TP53 Expression ...sperm entry / positive regulation of Golgi lumen acidification / symbiont-mediated suppression of host transcription / regulation of ubiquitin-dependent protein catabolic process / symbiont-mediated suppression of host apoptosis / prostate gland growth / HECT-type E3 ubiquitin transferase / negative regulation of helicase activity / Loss of function of TP53 in cancer due to loss of tetramerization ability / Regulation of TP53 Expression / signal transduction by p53 class mediator / negative regulation of G1 to G0 transition / negative regulation of glucose catabolic process to lactate via pyruvate / Transcriptional activation of cell cycle inhibitor p21 / regulation of intrinsic apoptotic signaling pathway by p53 class mediator / negative regulation of pentose-phosphate shunt / ATP-dependent DNA/DNA annealing activity / Activation of NOXA and translocation to mitochondria / regulation of cell cycle G2/M phase transition / oligodendrocyte apoptotic process / negative regulation of miRNA processing / intrinsic apoptotic signaling pathway in response to hypoxia / positive regulation of thymocyte apoptotic process / oxidative stress-induced premature senescence / regulation of tissue remodeling / positive regulation of mitochondrial membrane permeability / regulation of fibroblast apoptotic process / mRNA transcription / bone marrow development / circadian behavior / positive regulation of programmed necrotic cell death / T cell proliferation involved in immune response / regulation of Cdc42 protein signal transduction / regulation of mitochondrial membrane permeability involved in apoptotic process / histone deacetylase regulator activity / RUNX3 regulates CDKN1A transcription / germ cell nucleus / homolactic fermentation / TP53 Regulates Transcription of Death Receptors and Ligands / TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain / Activation of PUMA and translocation to mitochondria / IgG binding / Regulation of TP53 Activity through Association with Co-factors / regulation of DNA damage response, signal transduction by p53 class mediator / negative regulation of glial cell proliferation / negative regulation of neuroblast proliferation / mitochondrial DNA repair / T cell lineage commitment / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / thymocyte apoptotic process / ER overload response / TP53 Regulates Transcription of Caspase Activators and Caspases / cardiac septum morphogenesis / entrainment of circadian clock by photoperiod / B cell lineage commitment / androgen receptor signaling pathway / negative regulation of mitophagy / negative regulation of DNA replication / Zygotic genome activation (ZGA) / Association of TriC/CCT with target proteins during biosynthesis / PI5P Regulates TP53 Acetylation / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / necroptotic process / positive regulation of release of cytochrome c from mitochondria / negative regulation of telomere maintenance via telomerase / SUMOylation of transcription factors / TP53 regulates transcription of several additional cell death genes whose specific roles in p53-dependent apoptosis remain uncertain / TFIID-class transcription factor complex binding / cellular response to actinomycin D / intrinsic apoptotic signaling pathway by p53 class mediator / negative regulation of reactive oxygen species metabolic process / rRNA transcription / Transcriptional Regulation by VENTX / cellular response to UV-C / viral process / regulation of proteolysis / general transcription initiation factor binding / replicative senescence / progesterone receptor signaling pathway / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / positive regulation of RNA polymerase II transcription preinitiation complex assembly / neuroblast proliferation / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / Pyroptosis / positive regulation of execution phase of apoptosis / embryonic organ development / hematopoietic stem cell differentiation / chromosome organization / type II interferon-mediated signaling pathway / response to X-ray / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / postsynaptic cytosol / somitogenesis / hematopoietic progenitor cell differentiation / positive regulation of cardiac muscle cell apoptotic process / core promoter sequence-specific DNA binding / glial cell proliferation / negative regulation of stem cell proliferation / ovarian follicle development / protein autoubiquitination 類似検索 - 分子機能 | ||||||||||||
| 生物種 | Homo sapiens (ヒト) Streptococcus sp. group G (バクテリア) Human papillomavirus 16 (パピローマウイルス) | ||||||||||||
| 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: 3.54 Å | ||||||||||||
データ登録者 | Kenny, S. / Das, C. | ||||||||||||
| 資金援助 | 米国, 3件
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引用 | ジャーナル: Structure / 年: 2025タイトル: Structure of E6AP in complex with HPV16-E6 and p53 reveals a novel ordered domain important for E3 ligase activation. 著者: Sebastian Kenny / Shalini Iyer / Clinton A Gabel / Natalia Tegenfeldt / Andrew G DeMarco / Mark C Hall / Leifu Chang / V Jo Davisson / Scott Vande Pol / Chittaranjan Das / ![]() 要旨: High-risk human papillomavirus E6 oncoprotein is a model system for the recognition and degradation of cellular p53 tumor suppressor protein. There remains a gap in the understanding of the ubiquitin ...High-risk human papillomavirus E6 oncoprotein is a model system for the recognition and degradation of cellular p53 tumor suppressor protein. There remains a gap in the understanding of the ubiquitin transfer reaction, including placement of the E6AP catalytic HECT domain of the ligase concerning the p53 substrate and how E6 itself is protected from ubiquitination. We determined the cryoelectron microscopy (cryo-EM) structure of the E6AP/E6/p53 complex, related the structure to in vivo modeling of the tri-molecular complex, and identified structural interactions associated with activation of the ubiquitin ligase function. The structure reveals that the N-terminal ordered domain (NOD) in E6AP has a terminal alpha helix that mediates the interaction of the NOD with the HECT domain of E6AP and protects the HPV-E6 protein from ubiquitination. In addition, this NOD helix is required for E6AP ligase function by contributing to the affinity of the E6-E6AP association, modulating E6 substrate recognition, while displacing UbcH7. | ||||||||||||
| 履歴 |
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| Remark 650 | HELIX DETERMINATION METHOD: AUTHOR | ||||||||||||
| Remark 700 | SHEET DETERMINATION METHOD: AUTHOR |
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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 | 9cht.cif.gz | 206.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9cht.ent.gz | 156.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9cht.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/ch/9cht ftp://data.pdbj.org/pub/pdb/validation_reports/ch/9cht | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 45601MC 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 |
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要素
| #1: タンパク質 | 分子量: 102982.867 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: UBE3A, E6AP, EPVE6AP, HPVE6A / 発現宿主: ![]() |
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| #2: 抗体 | 分子量: 43801.734 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Streptococcus sp. group G (バクテリア), (組換発現) Homo sapiens (ヒト)遺伝子: spg, TP53, P53 / 発現宿主: ![]() |
| #3: タンパク質 | 分子量: 18365.369 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Human papillomavirus 16 (パピローマウイルス)遺伝子: E6 / 発現宿主: ![]() |
| 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 | 名称: Ternary complex of E6AP with viral factor E6 and neosubstrate p53 タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.4 |
| 試料 | 濃度: 0.25 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: monodisperse, further purified by SEC |
| 試料支持 | グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 279 K |
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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 / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 600 nm |
| 撮影 | 平均露光時間: 3.192 sec. / 電子線照射量: 1.52 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 1 / 実像数: 5548 |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 1591147 | ||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.54 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 238679 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: Cross-correlation coefficient | ||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | Source name: AlphaFold / タイプ: in silico model | ||||||||||||||||||||||||||||||||||||
| 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)
Streptococcus sp. group G (バクテリア)
Human papillomavirus 16 (パピローマウイルス)
米国, 3件
引用
PDBj


















FIELD EMISSION GUN