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Yorodumi- PDB-9dqd: cryo-EM structure of human Cereblon/DDB1 in complex with a non-tr... -
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Basic information
| Entry | Database: PDB / ID: 9dqd | ||||||
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| Title | cryo-EM structure of human Cereblon/DDB1 in complex with a non-traditional CRBN binder | ||||||
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Keywords | LIGASE / CRL4 / UBIQUITIN / E3 / CEREBLON | ||||||
| Function / homology | Function and homology informationnegative regulation of monoatomic ion transmembrane transport / 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 cell cycle phase transition / WD40-repeat domain binding / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex ...negative regulation of monoatomic ion transmembrane transport / 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 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 / negative regulation of reproductive process / negative regulation of developmental process / locomotory exploration behavior / cullin family protein binding / viral release from host cell / positive regulation of Wnt signaling pathway / ectopic germ cell programmed cell death / negative regulation of protein-containing complex assembly / positive regulation of viral genome replication / proteasomal protein catabolic process / positive regulation of gluconeogenesis / nucleotide-excision repair / positive regulation of protein-containing complex assembly / 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 / Formation of Incision Complex in GG-NER / Wnt signaling pathway / 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 / site of double-strand break / Neddylation / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / Potential therapeutics for SARS / proteasome-mediated ubiquitin-dependent protein catabolic process / damaged DNA binding / transmembrane transporter binding / chromosome, telomeric region / protein ubiquitination / DNA repair / apoptotic process / DNA damage response / negative regulation of apoptotic process / protein-containing complex binding / nucleolus / perinuclear region of cytoplasm / protein-containing complex / extracellular space / DNA binding / extracellular exosome / nucleoplasm / metal ion binding / nucleus / membrane / cytoplasm / cytosol Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | ||||||
Authors | Zhu, J. / Pagarigan, B. | ||||||
| Funding support | 1items
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Citation | Journal: ACS Med Chem Lett / Year: 2025Title: Development of a Buchwald-Hartwig Amination for an Accelerated Library Synthesis of Cereblon Binders. Authors: Anastasia Lejava / Giulianna A Miseo / Thomas Phan / Jinyi Zhu / Hannah L Powers / Jianqing Li / Deborah S Mortensen / Christoph W Zapf / Gody Khambatta / Jennifer Buenviaje / Natalie Holmberg-Douglas / ![]() Abstract: In recent years, targeted protein degradation (TPD) has emerged as a powerful therapeutic modality utilizing both heterobifunctional ligand-directed degraders (LDDs) and molecular glues (e.g., ...In recent years, targeted protein degradation (TPD) has emerged as a powerful therapeutic modality utilizing both heterobifunctional ligand-directed degraders (LDDs) and molecular glues (e.g., CELMoDs) to recruit E3 ligases for inducing polyubiquitination and subsequent proteasomal degradation of target proteins. The immunomodulatory drugs lenalidomide and pomalidomide bind to cereblon (CRBN), a substrate receptor of the CRL4A E3 ligase complex, to initiate degradation of neosubstrates critical for cell survival. Recently, nonlenalidomide or pomalidomide CRBN binders, known as alternate glutarimides, have gained popularity, offering potential degraders with varying physicochemical properties. Specifically, 3-substituted indazole derivatives have emerged as potent CRBN binders. We developed conditions for the direct cross-coupling of unprotected glutarimides with amines, streamlining the synthesis of alternative CRBN binders. This manuscript describes the rapid synthesis of 30 CRBN binders, their characterization as potential degraders and a cryo-EM structure of the CRBN/DDB1 with a representative compound (). | ||||||
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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 | 9dqd.cif.gz | 255.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9dqd.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9dqd.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9dqd_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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| Full document | 9dqd_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 9dqd_validation.xml.gz | 52.2 KB | Display | |
| Data in CIF | 9dqd_validation.cif.gz | 77 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dq/9dqd ftp://data.pdbj.org/pub/pdb/validation_reports/dq/9dqd | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 47111MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 53581.984 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CRBN, AD-006 / Cell (production host): SF9 / Production host: ![]() |
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| #2: Protein | Mass: 93347.078 Da / Num. of mol.: 1 / Mutation: deletion of residues 396-705 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DDB1, XAP1 / Production host: ![]() |
| #3: Chemical | ChemComp-ZN / |
| #4: Chemical | ChemComp-A1BEP / ( Mass: 341.408 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C18H23N5O2 / Feature type: SUBJECT OF INVESTIGATION |
| Has ligand of interest | Y |
| Has protein modification | N |
-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: CREBN-DDB1 plus a non-traditional CRBN binder / Type: COMPLEX Details: co-expressed in sf9 cells. beta-propeller domain of DDB1 replaced by a linker. Entity ID: #1-#2 / Source: RECOMBINANT | ||||||||||||||||||||||||||||||
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| Source (natural) | Organism: Homo sapiens (human) | ||||||||||||||||||||||||||||||
| Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||||||||
| Buffer solution | pH: 7 | ||||||||||||||||||||||||||||||
| Buffer component |
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| Specimen | Conc.: 3.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
| Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R0.6/1 | ||||||||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 278 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company | |||||||||||||||
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| Microscopy | Model: TFS KRIOS | |||||||||||||||
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM | |||||||||||||||
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 75000 X / Nominal defocus max: 1400 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE | |||||||||||||||
| Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | |||||||||||||||
| Image recording | Imaging-ID: 1 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1
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Processing
| EM software |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 7881094 | ||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 81146 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 8D81 Accession code: 8D81 / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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Homo sapiens (human)
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FIELD EMISSION GUN
