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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: 8h33 | ||||||
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| タイトル | Cryo-EM Structure of the KBTBD2-Cul3-Rbx1 tetrameric complex | ||||||
要素 |
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キーワード | LIGASE / complex | ||||||
| 機能・相同性 | 機能・相同性情報positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / polar microtubule / regulation protein catabolic process at postsynapse / anaphase-promoting complex-dependent catabolic process / nuclear protein quality control by the ubiquitin-proteasome system / COPII vesicle coating / negative regulation of beige fat cell differentiation ...positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / polar microtubule / regulation protein catabolic process at postsynapse / anaphase-promoting complex-dependent catabolic process / nuclear protein quality control by the ubiquitin-proteasome system / COPII vesicle coating / negative regulation of beige fat cell differentiation / cullin-RING-type E3 NEDD8 transferase / RHOBTB3 ATPase cycle / NEDD8 transferase activity / embryonic cleavage / cullin-RING ubiquitin ligase complex / Cul7-RING ubiquitin ligase complex / cellular response to chemical stress / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of mitotic metaphase/anaphase transition / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / protein neddylation / Notch binding / fibroblast apoptotic process / cell projection organization / NEDD8 ligase activity / negative regulation of Rho protein signal transduction / protein K27-linked ubiquitination / negative regulation of response to oxidative stress / RHOBTB1 GTPase cycle / VCB complex / Cul5-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / stem cell division / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / mitotic metaphase chromosome alignment / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul3-RING ubiquitin ligase complex / negative regulation of type I interferon production / stress fiber assembly / positive regulation of cytokinesis / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Prolactin receptor signaling / negative regulation of mitophagy / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / cullin family protein binding / endoplasmic reticulum to Golgi vesicle-mediated transport / protein monoubiquitination / RHOBTB2 GTPase cycle / sperm flagellum / protein autoubiquitination / ubiquitin-like ligase-substrate adaptor activity / site of DNA damage / signal transduction in response to DNA damage / Nuclear events stimulated by ALK signaling in cancer / protein K48-linked ubiquitination / transcription-coupled nucleotide-excision repair / negative regulation of insulin receptor signaling pathway / gastrulation / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / post-translational protein modification / intrinsic apoptotic signaling pathway / cyclin binding / positive regulation of protein ubiquitination / T cell activation / Regulation of BACH1 activity / integrin-mediated signaling pathway / negative regulation of canonical NF-kappaB signal transduction / lipid metabolic process / kidney development / cellular response to amino acid stimulus / phosphatidylinositol 3-kinase/protein kinase B signal transduction / Degradation of DVL / Degradation of CRY and PER proteins / G1/S transition of mitotic cell cycle / Degradation of GLI1 by the proteasome / negative regulation of canonical Wnt signaling pathway / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Recognition of DNA damage by PCNA-containing replication complex / Hedgehog 'on' state / Vif-mediated degradation of APOBEC3G / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / RING-type E3 ubiquitin transferase / response to insulin / Degradation of beta-catenin by the destruction complex / NOTCH1 Intracellular Domain Regulates Transcription / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / DNA Damage Recognition in GG-NER / protein destabilization / Constitutive Signaling by NOTCH1 PEST Domain Mutants 類似検索 - 分子機能 | ||||||
| 生物種 | 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: 7.86 Å | ||||||
データ登録者 | Hu, Y. / Mao, Q. / Chen, Z. / Sun, L. | ||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2024タイトル: Dynamic molecular architecture and substrate recruitment of cullin3-RING E3 ligase CRL3. 著者: Yuxia Hu / Zhao Zhang / Qiyu Mao / Xiang Zhang / Aihua Hao / Yu Xun / Yeda Wang / Lin Han / Wuqiang Zhan / Qianying Liu / Yue Yin / Chao Peng / Eva Marie Y Moresco / Zhenguo Chen / Bruce Beutler / Lei Sun / ![]() 要旨: Phosphatidylinositol 3-kinase α, a heterodimer of catalytic p110α and one of five regulatory subunits, mediates insulin- and insulin like growth factor-signaling and, frequently, oncogenesis. ...Phosphatidylinositol 3-kinase α, a heterodimer of catalytic p110α and one of five regulatory subunits, mediates insulin- and insulin like growth factor-signaling and, frequently, oncogenesis. Cellular levels of the regulatory p85α subunit are tightly controlled by regulated proteasomal degradation. In adipose tissue and growth plates, failure of K48-linked p85α ubiquitination causes diabetes, lipodystrophy and dwarfism in mice, as in humans with SHORT syndrome. Here we elucidated the structures of the key ubiquitin ligase complexes regulating p85α availability. Specificity is provided by the substrate receptor KBTBD2, which recruits p85α to the cullin3-RING E3 ubiquitin ligase (CRL3). CRL3 forms multimers, which disassemble into dimers upon substrate binding (CRL3-p85α) and/or neddylation by the activator NEDD8 (CRL3~N8), leading to p85α ubiquitination and degradation. Deactivation involves dissociation of NEDD8 mediated by the COP9 signalosome and displacement of KBTBD2 by the inhibitor CAND1. The hereby identified structural basis of p85α regulation opens the way to better understanding disturbances of glucose regulation, growth and cancer. | ||||||
| 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 | 8h33.cif.gz | 963.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8h33.ent.gz | 786.4 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8h33.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/h3/8h33 ftp://data.pdbj.org/pub/pdb/validation_reports/h3/8h33 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 34449MC ![]() 8gq6C ![]() 8h34C ![]() 8h35C ![]() 8h36C ![]() 8h37C ![]() 8h38C ![]() 8h3aC ![]() 8h3fC ![]() 8h3qC ![]() 8h3rC 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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要素
| #1: タンパク質 | 分子量: 71403.367 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() 参照: UniProt: Q8IY47 #2: タンパク質 | 分子量: 13970.756 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RBX1, RNF75, ROC1発現宿主: ![]() 参照: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase #3: タンパク質 | 分子量: 90105.469 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() 参照: UniProt: Q13618 #4: 化合物 | ChemComp-ZN / 研究の焦点であるリガンドがあるか | Y | |
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-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: KBTBD2-Cul3-Rbx1 tetrameric complex / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.8 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: 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 / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm |
| 撮影 | 電子線照射量: 45 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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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 | ||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||
| 3次元再構成 | 解像度: 7.86 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 50236 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
中国, 1件
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FIELD EMISSION GUN