登録情報 データベース : EMDB / ID : EMD-35212 ダウンロードとリンクタイトル Cryo-EM structure of KCTD7 in complex with Cullin3 マップデータcryoEM map of KCTD7/CUL3 詳細 試料複合体 : complex of KCTD7 and Cullin-3複合体 : KCTD7タンパク質・ペプチド : BTB/POZ domain-containing protein KCTD7複合体 : Cullin-3 詳細 キーワード CUL3 / ubiquitination / E3 ligase / SIGNALING PROTEIN機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
positive regulation of transporter activity / positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / 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 ... positive regulation of transporter activity / positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / 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 / intracellular glutamate homeostasis / Neddylation / RHOBTB3 ATPase cycle / positive regulation of mitotic metaphase/anaphase transition / cell projection organization / embryonic cleavage / Antigen processing: Ubiquitination & Proteasome degradation / membrane hyperpolarization / Notch binding / fibroblast apoptotic process / RHOBTB1 GTPase cycle / negative regulation of type I interferon production / stem cell division / Cul3-RING ubiquitin ligase complex / mitotic metaphase chromosome alignment / ubiquitin ligase complex scaffold activity / stress fiber assembly / positive regulation of cytokinesis / negative regulation of Rho protein signal transduction / intracellular potassium ion homeostasis / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / sperm flagellum / RHOBTB2 GTPase cycle / protein K48-linked ubiquitination / protein autoubiquitination / gastrulation / positive regulation of protein ubiquitination / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / intrinsic apoptotic signaling pathway / cyclin binding / Degradation of DVL / integrin-mediated signaling pathway / Hedgehog 'on' state / cellular response to amino acid stimulus / kidney development / G1/S transition of mitotic cell cycle / protein destabilization / protein homooligomerization / Regulation of RAS by GAPs / Wnt signaling pathway / KEAP1-NFE2L2 pathway / protein polyubiquitination / spindle pole / mitotic spindle / Antigen processing: Ubiquitination & Proteasome degradation / ubiquitin protein ligase activity / cell migration / Neddylation / cellular response to oxidative stress / ubiquitin-dependent protein catabolic process / gene expression / proteasome-mediated ubiquitin-dependent protein catabolic process / Potential therapeutics for SARS / postsynapse / protein ubiquitination / inflammatory response / 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 / identical protein binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 Potassium channel tetramerisation-type BTB domain / BTB/POZ domain / Cullin protein neddylation domain / Cullin, conserved site / Cullin family signature. / Cullin repeat-like-containing domain superfamily / Cullin protein, neddylation domain / Cullin / Cullin protein neddylation domain / Cullin ... Potassium channel tetramerisation-type BTB domain / BTB/POZ domain / Cullin protein neddylation domain / Cullin, conserved site / Cullin family signature. / Cullin repeat-like-containing domain superfamily / Cullin protein, neddylation domain / Cullin / Cullin protein neddylation domain / Cullin / Cullin, N-terminal / Cullin homology domain / Cullin homology domain superfamily / Cullin family / Cullin family profile. / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / SKP1/BTB/POZ domain superfamily / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily 類似検索 - ドメイン・相同性 Cullin-3 / BTB/POZ domain-containing protein KCTD7 類似検索 - 構成要素生物種 Mus musculus (ハツカネズミ) / Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 2.8 Å 詳細 データ登録者Jiang W / Wang W / Zheng S 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Science and Technology (MoST, China) 中国
引用ジャーナル : Sci Adv / 年 : 2023タイトル : Structural basis for the ubiquitination of G protein βγ subunits by KCTD5/Cullin3 E3 ligase.著者 : Wentong Jiang / Wei Wang / Yinfei Kong / Sanduo Zheng / 要旨 : G protein-coupled receptor (GPCR) signaling is precisely controlled to avoid overstimulation that results in detrimental consequences. Gβγ signaling is negatively regulated by a Cullin3 (Cul3)- ... G protein-coupled receptor (GPCR) signaling is precisely controlled to avoid overstimulation that results in detrimental consequences. Gβγ signaling is negatively regulated by a Cullin3 (Cul3)-dependent E3 ligase, KCTD5, which triggers ubiquitination and degradation of free Gβγ. Here, we report the cryo-electron microscopy structures of the KCTD5-Gβγ fusion complex and the KCTD7-Cul3 complex. KCTD5 in pentameric form engages symmetrically with five copies of Gβγ through its C-terminal domain. The unique pentameric assembly of the KCTD5/Cul3 E3 ligase places the ubiquitin-conjugating enzyme (E2) and the modification sites of Gβγ in close proximity and allows simultaneous transfer of ubiquitin from E2 to five Gβγ subunits. Moreover, we show that ubiquitination of Gβγ by KCTD5 is important for fine-tuning cyclic adenosine 3´,5´-monophosphate signaling of GPCRs. Our studies provide unprecedented insights into mechanisms of substrate recognition by unusual pentameric E3 ligases and highlight the KCTD family as emerging regulators of GPCR signaling. 履歴 登録 2023年1月31日 - ヘッダ(付随情報) 公開 2023年7月26日 - マップ公開 2023年7月26日 - 更新 2025年6月18日 - 現状 2025年6月18日 処理サイト : PDBj / 状態 : 公開
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