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Yorodumi- PDB-6sj7: Structure of the human DDB1-DDA1-DCAF15 E3 ubiquitin ligase bound... -
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Basic information
| Entry | Database: PDB / ID: 6sj7 | ||||||
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| Title | Structure of the human DDB1-DDA1-DCAF15 E3 ubiquitin ligase bound to RBM39 and Indisulam | ||||||
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Keywords | ONCOPROTEIN / DDB1 | ||||||
| Function / homology | Function and homology informationRS domain binding / U1 snRNP binding / regulation of mRNA splicing, via spliceosome / positive regulation by virus of viral protein levels in host cell / 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 cytokinesis / regulation of mitotic cell cycle phase transition ...RS domain binding / U1 snRNP binding / regulation of mRNA splicing, via spliceosome / positive regulation by virus of viral protein levels in host cell / 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 cytokinesis / regulation of mitotic cell cycle phase transition / regulation of miRNA-mediated gene silencing / regulation of natural killer cell activation / WD40-repeat domain binding / small molecule binding / regulation of cell cycle phase transition / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / regulation of stem cell population maintenance / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of adipose tissue development / regulation of cellular response to stress / viral release from host cell / cullin family protein binding / regulation of DNA-templated DNA replication initiation / RNA processing / positive regulation of viral genome replication / positive regulation of gluconeogenesis / immune system process / mRNA Splicing - Major Pathway / RNA splicing / regulation of embryonic development / replication fork processing / proteasomal protein catabolic process / epigenetic regulation of gene expression / nucleotide-excision repair / regulation of autophagy / Recognition of DNA damage by PCNA-containing replication complex / regulation of circadian rhythm / cell population proliferation / 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 / mRNA processing / mRNA Polyadenylation / protein polyubiquitination / Formation of Incision Complex in GG-NER / positive regulation of protein catabolic process / cellular response to UV / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / rhythmic process / regulation of cell population proliferation / site of double-strand break / Neddylation / spermatogenesis / ubiquitin-dependent protein catabolic process / damaged DNA binding / proteasome-mediated ubiquitin-dependent protein catabolic process / regulation of apoptotic process / protein-macromolecule adaptor activity / chromosome, telomeric region / nuclear speck / protein ubiquitination / DNA repair / DNA damage response / nucleolus / protein-containing complex binding / protein-containing complex / DNA binding / : / DNA-templated transcription / RNA binding / extracellular exosome / nucleoplasm / metal ion binding / nucleus / cytoplasm Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.54 Å | ||||||
Authors | Srinivas, H. | ||||||
Citation | Journal: Nat Chem Biol / Year: 2020Title: Structural basis of indisulam-mediated RBM39 recruitment to DCAF15 E3 ligase complex. Authors: Dirksen E Bussiere / Lili Xie / Honnappa Srinivas / Wei Shu / Ashley Burke / Celine Be / Junping Zhao / Adarsh Godbole / Dan King / Rajeshri G Karki / Viktor Hornak / Fangmin Xu / Jennifer ...Authors: Dirksen E Bussiere / Lili Xie / Honnappa Srinivas / Wei Shu / Ashley Burke / Celine Be / Junping Zhao / Adarsh Godbole / Dan King / Rajeshri G Karki / Viktor Hornak / Fangmin Xu / Jennifer Cobb / Nathalie Carte / Andreas O Frank / Alexandra Frommlet / Patrick Graff / Mark Knapp / Aleem Fazal / Barun Okram / Songchun Jiang / Pierre-Yves Michellys / Rohan Beckwith / Hans Voshol / Christian Wiesmann / Jonathan M Solomon / Joshiawa Paulk / ![]() Abstract: The anticancer agent indisulam inhibits cell proliferation by causing degradation of RBM39, an essential mRNA splicing factor. Indisulam promotes an interaction between RBM39 and the DCAF15 E3 ligase ...The anticancer agent indisulam inhibits cell proliferation by causing degradation of RBM39, an essential mRNA splicing factor. Indisulam promotes an interaction between RBM39 and the DCAF15 E3 ligase substrate receptor, leading to RBM39 ubiquitination and proteasome-mediated degradation. To delineate the precise mechanism by which indisulam mediates the DCAF15-RBM39 interaction, we solved the DCAF15-DDB1-DDA1-indisulam-RBM39(RRM2) complex structure to a resolution of 2.3 Å. DCAF15 has a distinct topology that embraces the RBM39(RRM2) domain largely via non-polar interactions, and indisulam binds between DCAF15 and RBM39(RRM2), coordinating additional interactions between the two proteins. Studies with RBM39 point mutants and indisulam analogs validated the structural model and defined the RBM39 α-helical degron motif. The degron is found only in RBM23 and RBM39, and only these proteins were detectably downregulated in indisulam-treated HCT116 cells. This work further explains how indisulam induces RBM39 degradation and defines the challenge of harnessing DCAF15 to degrade additional targets. | ||||||
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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 | 6sj7.cif.gz | 254.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6sj7.ent.gz | 189.8 KB | Display | PDB format |
| PDBx/mmJSON format | 6sj7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/sj/6sj7 ftp://data.pdbj.org/pub/pdb/validation_reports/sj/6sj7 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 10213MC ![]() 6ud7C ![]() 6ue5C M: map data used to model this data 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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Components
| #1: Protein | Mass: 66563.297 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DCAF15, C19orf72 / Cell line (production host): Sf21 / Production host: ![]() |
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| #2: Protein | Mass: 127097.469 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDB1, XAP1 / Cell line (production host): Sf21 / Production host: ![]() |
| #3: Protein | Mass: 9085.409 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DKFZp781I1140 / Production host: ![]() |
| #4: Protein | Mass: 11724.102 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDA1, C19orf58, PCIA1 / Cell line (production host): Sf21 / Production host: ![]() |
| #5: Chemical | ChemComp-EF6 / |
| Has ligand of interest | Y |
| Has protein modification | Y |
-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
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| Molecular weight | Value: 0.21 MDa / Experimental value: YES | ||||||||||||||||||||||||
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| Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
| 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: 40 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 3.54 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 380000 / Symmetry type: POINT |
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