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Open data
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Basic information
| Entry | Database: PDB / ID: 7okq | ||||||
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| Title | Cryo-EM Structure of the DDB1-DCAF1-CUL4A-RBX1 Complex | ||||||
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Keywords | LIGASE / ubiquitin / E3 / protein degradation | ||||||
| Function / homology | Function and homology informationcell competition in a multicellular organism / histone H2AT120 kinase activity / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / V(D)J recombination / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / regulation of DNA damage checkpoint ...cell competition in a multicellular organism / histone H2AT120 kinase activity / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / V(D)J recombination / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / regulation of DNA damage checkpoint / cellular response to chemical stress / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation by virus of viral protein levels in host cell / positive regulation of protein autoubiquitination / regulation of nucleotide-excision repair / RNA polymerase II transcription initiation surveillance / protein neddylation / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / NEDD8 ligase activity / UV-damage excision repair / VCB complex / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul2-RING ubiquitin ligase complex / WD40-repeat domain binding / Cul3-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / negative regulation of mitophagy / Prolactin receptor signaling / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of reproductive process / negative regulation of developmental process / hemopoiesis / viral release from host cell / cullin family protein binding / somatic stem cell population maintenance / protein monoubiquitination / positive regulation of G1/S transition of mitotic cell cycle / ectopic germ cell programmed cell death / positive regulation of viral genome replication / ubiquitin-like ligase-substrate adaptor activity / protein K48-linked ubiquitination / proteasomal protein catabolic process / Nuclear events stimulated by ALK signaling in cancer / transcription-coupled nucleotide-excision repair / positive regulation of TORC1 signaling / regulation of cellular response to insulin stimulus / positive regulation of gluconeogenesis / negative regulation of insulin receptor signaling pathway / intrinsic apoptotic signaling pathway / post-translational protein modification / B cell differentiation / T cell activation / Regulation of BACH1 activity / nuclear estrogen receptor binding / nucleotide-excision repair / cellular response to amino acid stimulus / Degradation of DVL / Degradation of GLI1 by the proteasome / G1/S transition of mitotic cell cycle / negative regulation of canonical Wnt signaling pathway / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Recognition of DNA damage by PCNA-containing replication complex / Hedgehog 'on' state / Vif-mediated degradation of APOBEC3G / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / regulation of circadian rhythm / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / DNA Damage Recognition in GG-NER / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Evasion by RSV of host interferon responses / NOTCH1 Intracellular Domain Regulates Transcription / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Regulation of expression of SLITs and ROBOs / fibrillar center / Formation of Incision Complex in GG-NER / Wnt signaling pathway / Interleukin-1 signaling / protein polyubiquitination / Orc1 removal from chromatin / Regulation of RAS by GAPs / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.4 Å | ||||||
Authors | Mohamed, W.I. / Schenk, A.D. / Kempf, G. / Cavadini, S. / Thoma, N.H. | ||||||
Citation | Journal: EMBO J / Year: 2021Title: The CRL4 cullin-RING ubiquitin ligase is activated following a switch in oligomerization state. Authors: Weaam I Mohamed / Andreas D Schenk / Georg Kempf / Simone Cavadini / Anja Basters / Alessandro Potenza / Wassim Abdul Rahman / Julius Rabl / Kurt Reichermeier / Nicolas H Thomä / ![]() Abstract: The cullin-4-based RING-type (CRL4) family of E3 ubiquitin ligases functions together with dedicated substrate receptors. Out of the ˜29 CRL4 substrate receptors reported, the DDB1- and CUL4- ...The cullin-4-based RING-type (CRL4) family of E3 ubiquitin ligases functions together with dedicated substrate receptors. Out of the ˜29 CRL4 substrate receptors reported, the DDB1- and CUL4-associated factor 1 (DCAF1) is essential for cellular survival and growth, and its deregulation has been implicated in tumorigenesis. We carried out biochemical and structural studies to examine the structure and mechanism of the CRL4 ligase. In the 8.4 Å cryo-EM map of CRL4 , four CUL4-RBX1-DDB1-DCAF1 protomers are organized into two dimeric sub-assemblies. In this arrangement, the WD40 domain of DCAF1 mediates binding with the cullin C-terminal domain (CTD) and the RBX1 subunit of a neighboring CRL4 protomer. This renders RBX1, the catalytic subunit of the ligase, inaccessible to the E2 ubiquitin-conjugating enzymes. Upon CRL4 activation by neddylation, the interaction between the cullin CTD and the neighboring DCAF1 protomer is broken, and the complex assumes an active dimeric conformation. Accordingly, a tetramerization-deficient CRL4 mutant has higher ubiquitin ligase activity compared to the wild-type. This study identifies a novel mechanism by which unneddylated and substrate-free CUL4 ligases can be maintained in an inactive state. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7okq.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7okq.ent.gz | 839.3 KB | Display | PDB format |
| PDBx/mmJSON format | 7okq.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7okq_validation.pdf.gz | 1004.4 KB | Display | wwPDB validaton report |
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| Full document | 7okq_full_validation.pdf.gz | 1009.7 KB | Display | |
| Data in XML | 7okq_validation.xml.gz | 160.9 KB | Display | |
| Data in CIF | 7okq_validation.cif.gz | 280.9 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ok/7okq ftp://data.pdbj.org/pub/pdb/validation_reports/ok/7okq | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 12964MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 129394.898 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDB1, XAP1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q16531#2: Protein | Mass: 171279.094 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DCAF1, KIAA0800, RIP, VPRBP / Production host: Trichoplusia ni (cabbage looper)References: UniProt: Q9Y4B6, non-specific serine/threonine protein kinase #3: Protein | Mass: 86702.836 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CUL4A / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q13619#4: Protein | Mass: 13497.240 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RBX1, RNF75, ROC1 / Production host: Trichoplusia ni (cabbage looper)References: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase |
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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: CRL4(DCAF1) / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Trichoplusia ni (cabbage looper) |
| Buffer solution | pH: 7.4 |
| Specimen | 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 45 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||
| 3D reconstruction | Resolution: 8.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 14000 / Symmetry type: POINT | |||||||||||||||||||||
| Atomic model building | B value: 596 / Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: Real-space cross-correlation | |||||||||||||||||||||
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About Yorodumi




Homo sapiens (human)
Citation

UCSF Chimera






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Trichoplusia ni (cabbage looper)


