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Open data
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Basic information
| Entry | Database: PDB / ID: 6q0r | |||||||||
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| Title | Structure of DDB1-DDA1-DCAF15 complex bound to E7820 and RBM39 | |||||||||
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Keywords | LIGASE / Ubiquitin / homeostasis / targeted protein degradation | |||||||||
| Function / homology | Function and homology informationRS domain binding / regulation of natural killer cell activation / positive regulation by virus of viral protein levels in host cell / U1 snRNP binding / regulation of mRNA splicing, via spliceosome / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition ...RS domain binding / regulation of natural killer cell activation / positive regulation by virus of viral protein levels in host cell / U1 snRNP binding / regulation of mRNA splicing, via spliceosome / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / small molecule binding / negative regulation of reproductive process / negative regulation of developmental process / cullin family protein binding / viral release from host cell / immune system process / ectopic germ cell programmed cell death / positive regulation of viral genome replication / RNA processing / proteasomal protein catabolic process / positive regulation of gluconeogenesis / mRNA Splicing - Major Pathway / RNA splicing / nucleotide-excision repair / Recognition of DNA damage by PCNA-containing replication complex / regulation of circadian rhythm / DNA Damage Recognition in GG-NER / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / centriolar satellite / Formation of Incision Complex in GG-NER / Wnt signaling pathway / mRNA processing / protein polyubiquitination / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / positive regulation of protein catabolic process / cellular response to UV / rhythmic process / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / site of double-strand break / Neddylation / microtubule cytoskeleton / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / damaged DNA binding / chromosome, telomeric region / nuclear speck / protein ubiquitination / DNA repair / apoptotic process / DNA damage response / negative regulation of apoptotic process / protein-containing complex binding / nucleolus / protein-containing complex / extracellular space / DNA binding / RNA binding / extracellular exosome / nucleoplasm / metal ion binding / nucleus / cytoplasm Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å | |||||||||
Authors | Faust, T. / Yoon, H. / Nowak, R.P. / Donovan, K.A. / Li, Z. / Cai, Q. / Eleuteri, N.A. / Zhang, T. / Gray, N.S. / Fischer, E.S. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Nat Chem Biol / Year: 2020Title: Structural complementarity facilitates E7820-mediated degradation of RBM39 by DCAF15. Authors: Tyler B Faust / Hojong Yoon / Radosław P Nowak / Katherine A Donovan / Zhengnian Li / Quan Cai / Nicholas A Eleuteri / Tinghu Zhang / Nathanael S Gray / Eric S Fischer / ![]() Abstract: The investigational drugs E7820, indisulam and tasisulam (aryl-sulfonamides) promote the degradation of the splicing factor RBM39 in a proteasome-dependent mechanism. While the activity critically ...The investigational drugs E7820, indisulam and tasisulam (aryl-sulfonamides) promote the degradation of the splicing factor RBM39 in a proteasome-dependent mechanism. While the activity critically depends on the cullin RING ligase substrate receptor DCAF15, the molecular details remain elusive. Here we present the cryo-EM structure of the DDB1-DCAF15-DDA1 core ligase complex bound to RBM39 and E7820 at a resolution of 4.4 Å, together with crystal structures of engineered subcomplexes. We show that DCAF15 adopts a new fold stabilized by DDA1, and that extensive protein-protein contacts between the ligase and substrate mitigate low affinity interactions between aryl-sulfonamides and DCAF15. Our data demonstrate how aryl-sulfonamides neo-functionalize a shallow, non-conserved pocket on DCAF15 to selectively bind and degrade RBM39 and the closely related splicing factor RBM23 without the requirement for a high-affinity ligand, which has broad implications for the de novo discovery of molecular glue degraders. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6q0r.cif.gz | 549.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6q0r.ent.gz | 447.5 KB | Display | PDB format |
| PDBx/mmJSON format | 6q0r.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6q0r_validation.pdf.gz | 359.5 KB | Display | wwPDB validaton report |
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| Full document | 6q0r_full_validation.pdf.gz | 359.6 KB | Display | |
| Data in XML | 6q0r_validation.xml.gz | 1.5 KB | Display | |
| Data in CIF | 6q0r_validation.cif.gz | 14.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/q0/6q0r ftp://data.pdbj.org/pub/pdb/validation_reports/q0/6q0r | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6q0vC ![]() 6q0wC ![]() 5fqdS S: Starting model for refinement C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| Unit cell |
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Components
-Protein , 3 types, 3 molecules ADE
| #1: Protein | Mass: 96425.586 Da / Num. of mol.: 1 / Fragment: internal deletion of the BPB domain 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 |
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| #4: Protein | Mass: 12062.565 Da / Num. of mol.: 1 / Fragment: RRM2 domain Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RBM39, HCC1, RNPC2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q14498 |
| #5: Protein | Mass: 14542.154 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDA1, C19orf58, PCIA1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9BW61 |
-DDB1- and CUL4-associated factor ... , 2 types, 2 molecules BC
| #2: Protein | Mass: 31611.043 Da / Num. of mol.: 1 / Fragment: N-terminal domain Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DCAF15, C19orf72 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q66K64 |
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| #3: Protein | Mass: 29893.537 Da / Num. of mol.: 1 / Fragment: C-terminal domain Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DCAF15, C19orf72 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q66K64 |
-Non-polymers , 4 types, 19 molecules 






| #6: Chemical | ChemComp-OXM / |
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| #7: Chemical | ChemComp-O6M / |
| #8: Chemical | ChemComp-ZN / |
| #9: Water | ChemComp-HOH / |
-Details
| Has ligand of interest | Y |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.65 Å3/Da / Density % sol: 53.62 % |
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| Crystal grow | Temperature: 300 K / Method: vapor diffusion / Details: 20% PEG 4000 |
-Data collection
| Diffraction | Mean temperature: 100 K / Ambient temp details: N2 / Serial crystal experiment: N |
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| Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 24-ID-C / Wavelength: 0.9792 Å |
| Detector | Type: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Feb 8, 2019 |
| Radiation | Monochromator: Cryo cooled double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.9792 Å / Relative weight: 1 |
| Reflection | Resolution: 2.9→50 Å / Num. obs: 44491 / % possible obs: 99.5 % / Redundancy: 6.7 % / Biso Wilson estimate: 102.82 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.03 / Net I/σ(I): 14.7 |
| Reflection shell | Resolution: 2.9→3 Å / Rmerge(I) obs: 0.8 / Num. unique obs: 4381 / CC1/2: 0.69 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: 5fqd chain A Resolution: 2.9→46.05 Å / Cor.coef. Fo:Fc: 0.933 / Cor.coef. Fo:Fc free: 0.9 / SU R Cruickshank DPI: 1.016 / Cross valid method: THROUGHOUT / SU R Blow DPI: 0.936 / SU Rfree Blow DPI: 0.341 / SU Rfree Cruickshank DPI: 0.349
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| Displacement parameters | Biso mean: 133.23 Å2
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| Refine analyze | Luzzati coordinate error obs: 0.44 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.9→46.05 Å
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| LS refinement shell | Resolution: 2.9→2.92 Å
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| Refinement TLS params. | Refine-ID: X-RAY DIFFRACTION
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| Refinement TLS group |
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About Yorodumi




Homo sapiens (human)
X-RAY DIFFRACTION
United States, 2items
Citation














PDBj







Trichoplusia ni (cabbage looper)