- EMDB-41995: KCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinement of KCTD5(BTB... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-41995
タイトル
KCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinement of KCTD5(BTB)/Cullin3(NTD)
マップデータ
KCTD5:Cullin3:GBetaGamma Complex High Resolution Bottom: Full Map
試料
複合体: Complex of substrate adaptor KCTD5 with Cullin-3 and substrate Gbeta-gamma
キーワード
cullin family protein / proteasome-mediated ubiquitin-dependent protein catabolic process / complex / ubiquitin-dependent protein catabolic process / CYTOSOLIC PROTEIN
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 / nuclear protein quality control by the ubiquitin-proteasome system / polar microtubule / COPII vesicle coating / anaphase-promoting complex-dependent catabolic process / regulation protein catabolic process at postsynapse / RHOBTB3 ATPase cycle ...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 / COPII vesicle coating / anaphase-promoting complex-dependent catabolic process / regulation protein catabolic process at postsynapse / RHOBTB3 ATPase cycle / cell projection organization / positive regulation of mitotic metaphase/anaphase transition / embryonic cleavage / stem cell division / Notch binding / fibroblast apoptotic process / RHOBTB1 GTPase cycle / negative regulation of type I interferon production / Cul3-RING ubiquitin ligase complex / mitotic metaphase chromosome alignment / ubiquitin ligase complex scaffold activity / negative regulation of Rho protein signal transduction / stress fiber assembly / positive regulation of cytokinesis / cullin family protein binding / sperm flagellum / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / protein K48-linked ubiquitination / RHOBTB2 GTPase cycle / protein autoubiquitination / gastrulation / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / intrinsic apoptotic signaling pathway / cyclin binding / positive regulation of protein ubiquitination / kidney development / integrin-mediated signaling pathway / cellular response to amino acid stimulus / Degradation of DVL / Hedgehog 'on' state / protein destabilization / protein homooligomerization / Wnt signaling pathway / G1/S transition of mitotic cell cycle / Regulation of RAS by GAPs / protein polyubiquitination / spindle pole / mitotic spindle / KEAP1-NFE2L2 pathway / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / 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 / centrosome / ubiquitin protein ligase binding / protein-containing complex binding / 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
ジャーナル: Proc Natl Acad Sci U S A / 年: 2024 タイトル: Structure and dynamics of a pentameric KCTD5/CUL3/Gβγ E3 ubiquitin ligase complex. 著者: Duc Minh Nguyen / Deanna H Rath / Dominic Devost / Darlaine Pétrin / Robert Rizk / Alan X Ji / Naveen Narayanan / Darren Yong / Andrew Zhai / Douglas A Kuntz / Maha U Q Mian / Neil C Pomroy ...著者: Duc Minh Nguyen / Deanna H Rath / Dominic Devost / Darlaine Pétrin / Robert Rizk / Alan X Ji / Naveen Narayanan / Darren Yong / Andrew Zhai / Douglas A Kuntz / Maha U Q Mian / Neil C Pomroy / Alexander F A Keszei / Samir Benlekbir / Mohammad T Mazhab-Jafari / John L Rubinstein / Terence E Hébert / Gilbert G Privé / 要旨: Heterotrimeric G proteins can be regulated by posttranslational modifications, including ubiquitylation. KCTD5, a pentameric substrate receptor protein consisting of an N-terminal BTB domain and a C- ...Heterotrimeric G proteins can be regulated by posttranslational modifications, including ubiquitylation. KCTD5, a pentameric substrate receptor protein consisting of an N-terminal BTB domain and a C-terminal domain, engages CUL3 to form the central scaffold of a cullin-RING E3 ligase complex (CRL3) that ubiquitylates Gβγ and reduces Gβγ protein levels in cells. The cryo-EM structure of a 5:5:5 KCTD5/CUL3/Gβγ assembly reveals a highly dynamic complex with rotations of over 60° between the KCTD5/CUL3 and KCTD5/Gβγ moieties of the structure. CRL3 engages the E3 ligase ARIH1 to ubiquitylate Gβγ in an E3-E3 superassembly, and extension of the structure to include full-length CUL3 with RBX1 and an ARIH1~ubiquitin conjugate reveals that some conformational states position the ARIH1~ubiquitin thioester bond to within 10 Å of lysine-23 of Gβ and likely represent priming complexes. Most previously described CRL/substrate structures have consisted of monovalent complexes and have involved flexible peptide substrates. The structure of the KCTD5/CUL3/Gβγ complex shows that the oligomerization of a substrate receptor can generate a polyvalent E3 ligase complex and that the internal dynamics of the substrate receptor can position a structured target for ubiquitylation in a CRL3 complex.