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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: 8k8t | |||||||||||||||
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| タイトル | Structure of CUL3-RBX1-KLHL22 complex | |||||||||||||||
要素 |
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キーワード | LIGASE / Cullin Ring E3 ubiquitin ligase | |||||||||||||||
| 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 / cellular response to L-leucine ...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 / cellular response to L-leucine / RHOBTB3 ATPase cycle / positive regulation of T cell mediated immune response to tumor cell / embryonic cleavage / positive regulation of mitotic metaphase/anaphase transition / Notch binding / fibroblast apoptotic process / cell projection organization / negative regulation of Rho protein signal transduction / RHOBTB1 GTPase cycle / stem cell division / mitotic metaphase chromosome alignment / mitotic spindle assembly checkpoint signaling / Cul3-RING ubiquitin ligase complex / stress fiber assembly / negative regulation of type I interferon production / positive regulation of cytokinesis / ubiquitin ligase complex scaffold activity / mitotic sister chromatid segregation / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / RHOBTB2 GTPase cycle / sperm flagellum / protein autoubiquitination / intercellular bridge / ubiquitin-like ligase-substrate adaptor activity / protein K48-linked ubiquitination / gastrulation / 14-3-3 protein binding / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / intrinsic apoptotic signaling pathway / cyclin binding / positive regulation of protein ubiquitination / negative regulation of autophagy / integrin-mediated signaling pathway / kidney development / cellular response to amino acid stimulus / Degradation of DVL / G1/S transition of mitotic cell cycle / Hedgehog 'on' state / protein destabilization / positive regulation of T cell activation / Wnt signaling pathway / spindle pole / protein polyubiquitination / Regulation of RAS by GAPs / mitotic spindle / ubiquitin protein ligase activity / KEAP1-NFE2L2 pathway / cell migration / Antigen processing: Ubiquitination & Proteasome degradation / microtubule cytoskeleton / Neddylation / positive regulation of cell growth / cellular response to oxidative stress / gene expression / Potential therapeutics for SARS / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / lysosome / postsynapse / protein ubiquitination / inflammatory response / cell division / positive regulation of cell population proliferation / ubiquitin protein ligase binding / centrosome / glutamatergic synapse / negative regulation of transcription by RNA polymerase II / Golgi apparatus / extracellular exosome / nucleoplasm / membrane / identical protein binding / nucleus / plasma membrane / cytoplasm / cytosol 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: 3.8 Å | |||||||||||||||
データ登録者 | Wang, W. / Ling, L. / Dai, Z. / Zuo, P. / Yin, Y. | |||||||||||||||
| 資金援助 | 中国, 4件
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引用 | ジャーナル: Nat Commun / 年: 2024タイトル: A conserved N-terminal motif of CUL3 contributes to assembly and E3 ligase activity of CRL3. 著者: Weize Wang / Ling Liang / Zonglin Dai / Peng Zuo / Shang Yu / Yishuo Lu / Dian Ding / Hongyi Chen / Hui Shan / Yan Jin / Youdong Mao / Yuxin Yin / ![]() 要旨: The CUL3-RING E3 ubiquitin ligases (CRL3s) play an essential role in response to extracellular nutrition and stress stimuli. The ubiquitin ligase function of CRL3s is activated through dimerization. ...The CUL3-RING E3 ubiquitin ligases (CRL3s) play an essential role in response to extracellular nutrition and stress stimuli. The ubiquitin ligase function of CRL3s is activated through dimerization. However, how and why such a dimeric assembly is required for its ligase activity remains elusive. Here, we report the cryo-EM structure of the dimeric CRL3 complex and reveal a conserved N-terminal motif in CUL3 that contributes to the dimerization assembly and the E3 ligase activity of CRL3. We show that deletion of the CUL3 N-terminal motif impairs dimeric assembly and the E3 ligase activity of both CRL3 and several other CRL3s. In addition, we found that the dynamics of dimeric assembly of CRL3 generates a variable ubiquitination zone, potentially facilitating substrate recognition and ubiquitination. These findings demonstrate that a CUL3 N-terminal motif participates in the assembly process and provide insights into the assembly and activation of CRL3s. | |||||||||||||||
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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 | 8k8t.cif.gz | 252.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8k8t.ent.gz | 187.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8k8t.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/k8/8k8t ftp://data.pdbj.org/pub/pdb/validation_reports/k8/8k8t | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 36961MC ![]() 8k9iC 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: 90134.555 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CUL3発現宿主: ![]() 参照: UniProt: Q13618 #2: タンパク質 | 分子量: 74978.117 Da / 分子数: 2 / 由来タイプ: 組換発現 / 詳細: his-tev cleave site-klhl22 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: KLHL22発現宿主: ![]() 参照: UniProt: Q53GT1 |
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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: CUL3-RBX1-KLHL22 complex without CUL3 NA motif / 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: 7.5 | ||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
| 試料支持 | グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 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: DIFFRACTION / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1500 nm |
| 撮影 | 電子線照射量: 50 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
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 142416 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 98.32 Å2 | ||||||||||||||||||||||||
| 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)
中国, 4件
引用





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