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 / cellular response to L-leucine ...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 / cellular response to L-leucine / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / RHOBTB3 ATPase cycle / cell projection organization / cullin-RING ubiquitin ligase complex / positive regulation of mitotic metaphase/anaphase transition / positive regulation of T cell mediated immune response to tumor cell / embryonic cleavage / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / stem cell division / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / protein neddylation / Notch binding / NEDD8 ligase activity / fibroblast apoptotic process / RHOBTB1 GTPase cycle / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / Cul4A-RING E3 ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / mitotic metaphase chromosome alignment / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / mitotic spindle assembly checkpoint signaling / negative regulation of mitophagy / negative regulation of Rho protein signal transduction / stress fiber assembly / Prolactin receptor signaling / positive regulation of cytokinesis / cullin family protein binding / mitotic sister chromatid segregation / sperm flagellum / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / ubiquitin-like ligase-substrate adaptor activity / RHOBTB2 GTPase cycle / protein K48-linked ubiquitination / intercellular bridge / protein autoubiquitination / Nuclear events stimulated by ALK signaling in cancer / gastrulation / 14-3-3 protein binding / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / negative regulation of insulin receptor signaling pathway / post-translational protein modification / negative regulation of autophagy / intrinsic apoptotic signaling pathway / cyclin binding / T cell activation / Regulation of BACH1 activity / positive regulation of protein ubiquitination / kidney development / integrin-mediated signaling pathway / Degradation of DVL / cellular response to amino acid stimulus / Degradation of GLI1 by the proteasome / Recognition of DNA damage by PCNA-containing replication complex / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / negative regulation of canonical Wnt signaling pathway / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / DNA Damage Recognition in GG-NER / protein destabilization / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / NOTCH1 Intracellular Domain Regulates Transcription / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / positive regulation of T cell activation / Wnt signaling pathway / G1/S transition of mitotic cell cycle / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Regulation of expression of SLITs and ROBOs 類似検索 - 分子機能
ジャーナル: Structure / 年: 2023 タイトル: Cryo-EM structure of the KLHL22 E3 ligase bound to an oligomeric metabolic enzyme. 著者: Fei Teng / Yang Wang / Ming Liu / Shuyun Tian / Goran Stjepanovic / Ming-Yuan Su / 要旨: CULLIN-RING ligases constitute the largest group of E3 ubiquitin ligases. While some CULLIN family members recruit adapters before engaging further with different substrate receptors, homo-dimeric ...CULLIN-RING ligases constitute the largest group of E3 ubiquitin ligases. While some CULLIN family members recruit adapters before engaging further with different substrate receptors, homo-dimeric BTB-Kelch family proteins combine adapter and substrate receptor into a single polypeptide for the CULLIN3 family. However, the entire structural assembly and molecular details have not been elucidated to date. Here, we present a cryo-EM structure of the CULLIN3 in complex with Kelch-like protein 22 (KLHL22) and a mitochondrial glutamate dehydrogenase complex I (GDH1) at 3.06 Å resolution. The structure adopts a W-shaped architecture formed by E3 ligase dimers. Three CULLIN3 dimers were found to be dynamically associated with a single GDH1 hexamer. CULLIN3 ligase mediated the polyubiquitination of GDH1 in vitro. Together, these results enabled the establishment of a structural model for understanding the complete assembly of BTB-Kelch proteins with CULLIN3 and how together they recognize oligomeric substrates and target them for ubiquitination.