+Open data
-Basic information
Entry | Database: PDB / ID: 7okq | ||||||
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Title | Cryo-EM Structure of the DDB1-DCAF1-CUL4A-RBX1 Complex | ||||||
Components |
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Keywords | LIGASE / ubiquitin / E3 / protein degradation | ||||||
Function / homology | Function and homology information histone H2AT120 kinase activity / cell competition in a multicellular organism / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / V(D)J recombination / regulation of DNA damage checkpoint ...histone H2AT120 kinase activity / cell competition in a multicellular organism / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / V(D)J recombination / regulation of DNA damage checkpoint / regulation of nucleotide-excision repair / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / Cul4-RING E3 ubiquitin ligase complex / UV-damage excision repair / positive regulation of protein autoubiquitination / protein neddylation / NEDD8 ligase activity / biological process involved in interaction with symbiont / Cul5-RING ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / ubiquitin-ubiquitin ligase activity / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / Cul4A-RING E3 ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / negative regulation of type I interferon production / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / Cul3-RING ubiquitin ligase complex / Prolactin receptor signaling / negative regulation of reproductive process / negative regulation of developmental process / protein monoubiquitination / cullin family protein binding / somatic stem cell population maintenance / hemopoiesis / ubiquitin-like ligase-substrate adaptor activity / viral release from host cell / positive regulation of G1/S transition of mitotic cell cycle / protein K48-linked ubiquitination / ectopic germ cell programmed cell death / positive regulation of viral genome replication / Nuclear events stimulated by ALK signaling in cancer / positive regulation of gluconeogenesis / positive regulation of TORC1 signaling / Regulation of BACH1 activity / T cell activation / post-translational protein modification / intrinsic apoptotic signaling pathway / B cell differentiation / nuclear estrogen receptor binding / Degradation of DVL / proteasomal protein catabolic process / Recognition of DNA damage by PCNA-containing replication complex / nucleotide-excision repair / cellular response to amino acid stimulus / Degradation of GLI1 by the proteasome / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / DNA Damage Recognition in GG-NER / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / G1/S transition of mitotic cell cycle / negative regulation of canonical Wnt signaling pathway / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Dual Incision in GG-NER / regulation of circadian rhythm / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / NOTCH1 Intracellular Domain Regulates Transcription / Formation of TC-NER Pre-Incision Complex / fibrillar center / Wnt signaling pathway / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Formation of Incision Complex in GG-NER / Regulation of expression of SLITs and ROBOs / Interleukin-1 signaling / Dual incision in TC-NER / protein polyubiquitination / Orc1 removal from chromatin / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RAS by GAPs / positive regulation of protein catabolic process / Regulation of RUNX2 expression and activity / cellular response to UV / rhythmic process / ubiquitin protein ligase activity / KEAP1-NFE2L2 pathway / MAPK cascade / protein-macromolecule adaptor activity 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: 2021 Title: 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. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7okq.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7okq.ent.gz | 869.2 KB | Display | PDB format |
PDBx/mmJSON format | 7okq.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ok/7okq ftp://data.pdbj.org/pub/pdb/validation_reports/ok/7okq | HTTPS FTP |
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-Related structure data
Related structure data | 12964MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-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 |
-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 |
-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 FIELDBright-field microscopy |
Image recording | Electron dose: 45 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
EM software |
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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 | ||||||||||||
Atomic model building |
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