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- PDB-8rhz: Structure of CUL9-RBX1 ubiquitin E3 ligase complex in unneddylate... -
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Basic information
Entry | Database: PDB / ID: 8rhz | |||||||||
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Title | Structure of CUL9-RBX1 ubiquitin E3 ligase complex in unneddylated conformation - symmetry expanded unneddylated dimer | |||||||||
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![]() | LIGASE / Cullin-RING RBR E3 Ligase | |||||||||
Function / homology | ![]() cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / protein neddylation / NEDD8 ligase activity ...cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / protein neddylation / NEDD8 ligase activity / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / regulation of mitotic nuclear division / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / Prolactin receptor signaling / cullin family protein binding / protein monoubiquitination / protein K48-linked ubiquitination / Nuclear events stimulated by ALK signaling in cancer / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / post-translational protein modification / T cell activation / Regulation of BACH1 activity / Degradation of DVL / cellular response to amino acid stimulus / Degradation of GLI1 by the proteasome / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / negative regulation of canonical Wnt signaling pathway / Recognition of DNA damage by PCNA-containing replication complex / 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 / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Evasion by RSV of host interferon responses / Dual Incision in GG-NER / NOTCH1 Intracellular Domain Regulates Transcription / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / microtubule cytoskeleton organization / Regulation of expression of SLITs and ROBOs / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Formation of Incision Complex in GG-NER / Interleukin-1 signaling / Orc1 removal from chromatin / Regulation of RAS by GAPs / Dual incision in TC-NER / protein polyubiquitination / positive regulation of protein catabolic process / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RUNX2 expression and activity / cellular response to UV / MAPK cascade / ubiquitin protein ligase activity / KEAP1-NFE2L2 pathway / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Neddylation / cellular response to oxidative stress / ubiquitin-dependent protein catabolic process / spermatogenesis / molecular adaptor activity / RNA polymerase II-specific DNA-binding transcription factor binding / proteasome-mediated ubiquitin-dependent protein catabolic process / positive regulation of canonical NF-kappaB signal transduction / Potential therapeutics for SARS / protein ubiquitination / DNA repair / ubiquitin protein ligase binding / DNA damage response / zinc ion binding / nucleoplasm / ATP binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.37 Å | |||||||||
![]() | Hopf, L.V.M. / Horn-Ghetko, D. / Prabu, J.R. / Schulman, B.A. | |||||||||
Funding support | European Union, ![]()
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![]() | ![]() Title: Noncanonical assembly, neddylation and chimeric cullin-RING/RBR ubiquitylation by the 1.8 MDa CUL9 E3 ligase complex. Authors: Daniel Horn-Ghetko / Linus V M Hopf / Ishita Tripathi-Giesgen / Jiale Du / Sebastian Kostrhon / D Tung Vu / Viola Beier / Barbara Steigenberger / J Rajan Prabu / Luca Stier / Elias M Bruss / ...Authors: Daniel Horn-Ghetko / Linus V M Hopf / Ishita Tripathi-Giesgen / Jiale Du / Sebastian Kostrhon / D Tung Vu / Viola Beier / Barbara Steigenberger / J Rajan Prabu / Luca Stier / Elias M Bruss / Matthias Mann / Yue Xiong / Brenda A Schulman / ![]() ![]() Abstract: Ubiquitin ligation is typically executed by hallmark E3 catalytic domains. Two such domains, 'cullin-RING' and 'RBR', are individually found in several hundred human E3 ligases, and collaborate with ...Ubiquitin ligation is typically executed by hallmark E3 catalytic domains. Two such domains, 'cullin-RING' and 'RBR', are individually found in several hundred human E3 ligases, and collaborate with E2 enzymes to catalyze ubiquitylation. However, the vertebrate-specific CUL9 complex with RBX1 (also called ROC1), of interest due to its tumor suppressive interaction with TP53, uniquely encompasses both cullin-RING and RBR domains. Here, cryo-EM, biochemistry and cellular assays elucidate a 1.8-MDa hexameric human CUL9-RBX1 assembly. Within one dimeric subcomplex, an E2-bound RBR domain is activated by neddylation of its own cullin domain and positioning from the adjacent CUL9-RBX1 in trans. Our data show CUL9 as unique among RBX1-bound cullins in dependence on the metazoan-specific UBE2F neddylation enzyme, while the RBR domain protects it from deneddylation. Substrates are recruited to various upstream domains, while ubiquitylation relies on both CUL9's neddylated cullin and RBR domains achieving self-assembled and chimeric cullin-RING/RBR E3 ligase activity. | |||||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 439.9 KB | Display | ![]() |
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PDB format | ![]() | 300 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 1 MB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 74.2 KB | Display | |
Data in CIF | ![]() | 117.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 19179MC ![]() 8q7eC ![]() 8q7hC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 281686.062 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Protein | Mass: 12289.977 Da / Num. of mol.: 2 / Mutation: p.M1_A4del Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase #3: Chemical | ChemComp-ZN / Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Structure of CUL9-RBX1 ubiquitin E3 ligase complex in unneddylated conformation - symmetry expanded unneddylated dimer Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2800 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
EM software | Name: PHENIX / Version: 1.17.1_3660: / Category: model refinement |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3D reconstruction | Resolution: 3.37 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 661706 / Symmetry type: POINT |