- EMDB-54793: Structure of Neddylated CUL5 C-terminal region-RBX2-ARIH2~L3A2-1~Ub -
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Basic information
Entry
Database: EMDB / ID: EMD-54793
Title
Structure of Neddylated CUL5 C-terminal region-RBX2-ARIH2~L3A2-1~Ub
Map data
Sample
Complex: NEDD8-CUL5-RBX2-ARIH2~E2V~Ub
Protein or peptide: NEDD8
Protein or peptide: RING-box protein 2
Protein or peptide: Ubiquitin
Protein or peptide: L3A2-1
Protein or peptide: Cullin-5
Protein or peptide: E3 ubiquitin-protein ligase ARIH2
Ligand: ZINC ION
Ligand: 5-azanylpentan-2-one
Keywords
Complex / Ligase
Function / homology
Function and homology information
developmental cell growth / RBR-type E3 ubiquitin transferase / ERBB2 signaling pathway / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / regulation of neuron migration / protein K11-linked ubiquitination / protein neddylation / ubiquitin conjugating enzyme binding ...developmental cell growth / RBR-type E3 ubiquitin transferase / ERBB2 signaling pathway / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / regulation of neuron migration / protein K11-linked ubiquitination / protein neddylation / ubiquitin conjugating enzyme binding / NEDD8 ligase activity / response to redox state / : / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / hematopoietic stem cell proliferation / ubiquitin ligase complex scaffold activity / TGF-beta receptor signaling activates SMADs / regulation of proteolysis / cullin family protein binding / regulation of postsynapse assembly / protein K63-linked ubiquitination / anatomical structure morphogenesis / ubiquitin ligase complex / site of DNA damage / endoplasmic reticulum unfolded protein response / protein K48-linked ubiquitination / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Constitutive Signaling by NOTCH1 HD Domain Mutants / IRAK2 mediated activation of TAK1 complex / Prevention of phagosomal-lysosomal fusion / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Endosomal Sorting Complex Required For Transport (ESCRT) / Membrane binding and targetting of GAG proteins / Negative regulation of FLT3 / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / intrinsic apoptotic signaling pathway / post-translational protein modification / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / p75NTR recruits signalling complexes / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Regulation of pyruvate metabolism / NF-kB is activated and signals survival / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Downregulation of ERBB2:ERBB3 signaling / Regulation of innate immune responses to cytosolic DNA / Pexophagy / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of PTEN localization / VLDLR internalisation and degradation / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / TICAM1, RIP1-mediated IKK complex recruitment / Regulation of BACH1 activity / Translesion synthesis by REV1 / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Degradation of CDH1 / Translesion synthesis by POLK / InlB-mediated entry of Listeria monocytogenes into host cell / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Josephin domain DUBs / Downregulation of TGF-beta receptor signaling / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / IKK complex recruitment mediated by RIP1 / Degradation of CRY and PER proteins / Regulation of activated PAK-2p34 by proteasome mediated degradation / PINK1-PRKN Mediated Mitophagy / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / TNFR1-induced NF-kappa-B signaling pathway / Autodegradation of Cdh1 by Cdh1:APC/C / TCF dependent signaling in response to WNT / Regulation of NF-kappa B signaling / APC/C:Cdc20 mediated degradation of Securin / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / activated TAK1 mediates p38 MAPK activation / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / Regulation of signaling by CBL Similarity search - Function
Journal: Proc Natl Acad Sci U S A / Year: 2026 Title: E2 variants for probing E3 ubiquitin ligase activities. Authors: Jiale Du / Gisele A Andree / Daniel Horn-Ghetko / Luca Stier / Jaspal Singh / Sebastian Kostrhon / Leo Kiss / Matthias Mann / Sachdev S Sidhu / Brenda A Schulman / Abstract: E3 ligases partner with E2 enzymes to regulate vast eukaryotic biology. The hierarchical nature of these pairings, with >600 E3s and ~40 E2s in humans, necessitates that E2s cofunction with numerous ...E3 ligases partner with E2 enzymes to regulate vast eukaryotic biology. The hierarchical nature of these pairings, with >600 E3s and ~40 E2s in humans, necessitates that E2s cofunction with numerous different E3s. Here, focusing on E3s in the RING-between-RING (RBR) family and their partner UBE2L3 and UBE2D-family E2s, we report an approach to interrogate selected pathways. We screened phage-displayed libraries of structure-based E2 variants (E2Vs) to discover enzymes with enhanced affinity and specificity toward half of all RBR E3 ligases (ARIH1, ARIH2, ANKIB1, CUL9, HOIL1, HOIP, and RNF14). Collectively, these E2Vs allowed distinguishing actions of different cofunctioning E3s, obtaining high-resolution cryogenic Electron Microscopy (cryo-EM) structures of an RBR E3 in the context of a substrate-bound multiprotein complex, and profiling an endogenous RBR E3 response to an extracellular stimulus. Overall, we anticipate that E2V technology will be a generalizable tool to enable in-depth mechanistic and structural analysis of E3 ligase functions, and mapping their activity states and protein partners in cellular signaling cascades.
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