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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: 8h37 | ||||||
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| タイトル | Cryo-EM Structure of the KBTBD2-CUL3-Rbx1-p85a 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 / perinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / nuclear protein quality control by the ubiquitin-proteasome system / polar microtubule / regulation protein catabolic process at postsynapse / COPII vesicle coating ...positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / perinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / nuclear protein quality control by the ubiquitin-proteasome system / polar microtubule / regulation protein catabolic process at postsynapse / COPII vesicle coating / anaphase-promoting complex-dependent catabolic process / phosphatidylinositol kinase activity / positive regulation of focal adhesion disassembly / 1-phosphatidylinositol-3-kinase regulator activity / phosphatidylinositol 3-kinase regulator activity / positive regulation of endoplasmic reticulum unfolded protein response / IRS-mediated signalling / phosphatidylinositol 3-kinase activator activity / interleukin-18-mediated signaling pathway / T follicular helper cell differentiation / phosphatidylinositol 3-kinase complex / PI3K events in ERBB4 signaling / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / phosphatidylinositol 3-kinase regulatory subunit binding / myeloid leukocyte migration / cullin-RING ubiquitin ligase complex / RHOBTB3 ATPase cycle / neurotrophin TRKA receptor binding / positive regulation of mitotic metaphase/anaphase transition / embryonic cleavage / Activated NTRK2 signals through PI3K / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / cis-Golgi network / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Activated NTRK3 signals through PI3K / transmembrane receptor protein tyrosine kinase adaptor activity / cell projection organization / ErbB-3 class receptor binding / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / Signaling by cytosolic FGFR1 fusion mutants / Co-stimulation by ICOS / positive regulation of protein autoubiquitination / RHOD GTPase cycle / RNA polymerase II transcription initiation surveillance / protein neddylation / phosphatidylinositol 3-kinase complex, class IA / Nephrin family interactions / RHOF GTPase cycle / kinase activator activity / Notch binding / Signaling by LTK in cancer / NEDD8 ligase activity / fibroblast apoptotic process / positive regulation of leukocyte migration / Signaling by LTK / MET activates PI3K/AKT signaling / VCB complex / RHOBTB1 GTPase cycle / PI3K/AKT activation / negative regulation of stress fiber assembly / RND1 GTPase cycle / positive regulation of filopodium assembly / negative regulation of response to oxidative stress / RND2 GTPase cycle / Cul5-RING ubiquitin ligase complex / RND3 GTPase cycle / growth hormone receptor signaling pathway / insulin binding / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / negative regulation of type I interferon production / Signaling by ALK / stem cell division / ubiquitin-ubiquitin ligase activity / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / PI-3K cascade:FGFR3 / RHOV GTPase cycle / Cul4A-RING E3 ubiquitin ligase complex / RHOB GTPase cycle / Erythropoietin activates Phosphoinositide-3-kinase (PI3K) / Cul4-RING E3 ubiquitin ligase complex / mitotic metaphase chromosome alignment / Cul3-RING ubiquitin ligase complex / natural killer cell mediated cytotoxicity / GP1b-IX-V activation signalling / PI-3K cascade:FGFR2 / Cul4B-RING E3 ubiquitin ligase complex / stress fiber assembly / PI-3K cascade:FGFR4 / ubiquitin ligase complex scaffold activity / negative regulation of Rho protein signal transduction / negative regulation of mitophagy / PI-3K cascade:FGFR1 / Prolactin receptor signaling / positive regulation of cytokinesis / RHOC GTPase cycle / RHOJ GTPase cycle / intracellular glucose homeostasis 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: 7.52 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. | ||||||
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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 | 8h37.cif.gz | 1.1 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8h37.ent.gz | 897.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8h37.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
| 文書・要旨 | 8h37_validation.pdf.gz | 1 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 8h37_full_validation.pdf.gz | 1.2 MB | 表示 | |
| XML形式データ | 8h37_validation.xml.gz | 154.7 KB | 表示 | |
| CIF形式データ | 8h37_validation.cif.gz | 240.4 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/h3/8h37 ftp://data.pdbj.org/pub/pdb/validation_reports/h3/8h37 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 34453MC ![]() 8gq6C ![]() 8h33C ![]() 8h34C ![]() 8h35C ![]() 8h36C ![]() 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: 89063.328 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: CUL3, KIAA0617発現宿主: ![]() 参照: UniProt: Q13618 #2: タンパク質 | 分子量: 12289.977 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: 71431.375 Da / 分子数: 4 / Mutation: S252D / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: KBTBD2, BKLHD1, KIAA1489, CGI-73発現宿主: ![]() 参照: UniProt: Q8IY47 #4: タンパク質 | 分子量: 83710.281 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: PIK3R1, GRB1発現宿主: ![]() 参照: UniProt: P27986 #5: 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-p85a tetrameric complex / タイプ: COMPLEX / Entity ID: #1-#4 / 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: 8.5 |
| 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: 7.52 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 239068 / 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