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- PDB-9dhd: The ternary complex of DDB1, DDA1, DET1 -

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Basic information

Entry
Database: PDB / ID: 9dhd
TitleThe ternary complex of DDB1, DDA1, DET1
Components
  • DET1 homolog
  • DET1- and DDB1-associated protein 1
  • DNA damage-binding protein 1
KeywordsPROTEIN BINDING / E3 ubiquitin ligase system / complex / degradation / cul4-ring
Function / homology
Function and homology information


cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Cul4-RING E3 ubiquitin ligase complex / 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 ...cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Cul4-RING E3 ubiquitin ligase complex / 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 / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of reproductive process / negative regulation of developmental process / cullin family protein binding / viral release from host cell / ectopic germ cell programmed cell death / ubiquitin-like ligase-substrate adaptor activity / positive regulation of viral genome replication / proteasomal protein catabolic process / positive regulation of gluconeogenesis / 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 / Wnt signaling pathway / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / protein polyubiquitination / positive regulation of protein catabolic process / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to UV / rhythmic process / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / site of double-strand break / Neddylation / protein-containing complex assembly / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / damaged DNA binding / chromosome, telomeric region / protein ubiquitination / DNA repair / apoptotic process / ubiquitin protein ligase binding / DNA damage response / protein-containing complex binding / negative regulation of apoptotic process / nucleolus / protein-containing complex / DNA binding / extracellular space / extracellular exosome / nucleoplasm / nucleus / cytoplasm
Similarity search - Function
De-etiolated protein 1, Det1 / De-etiolated protein 1 Det1 / DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / Det1 complexing ubiquitin ligase / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region ...De-etiolated protein 1, Det1 / De-etiolated protein 1 Det1 / DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / Det1 complexing ubiquitin ligase / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
DNA damage-binding protein 1 / DET1 homolog / DET1- and DDB1-associated protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsSchubert, A.F. / Kschonsak, M. / Harris, S.F.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Proc Natl Acad Sci U S A / Year: 2025
Title: Impairment of DET1 causes neurological defects and lethality in mice and humans.
Authors: Ozge Karayel / Allison Soung / Hem Gurung / Alexander F Schubert / Susan Klaeger / Marc Kschonsak / Aljazi Al-Maraghi / Ajaz A Bhat / Ammira S Alshabeeb Akil / Debra L Dugger / Joshua D ...Authors: Ozge Karayel / Allison Soung / Hem Gurung / Alexander F Schubert / Susan Klaeger / Marc Kschonsak / Aljazi Al-Maraghi / Ajaz A Bhat / Ammira S Alshabeeb Akil / Debra L Dugger / Joshua D Webster / Dorothy M French / Dhullipala Anand / Naharmal Soni / Khalid A Fakhro / Christopher M Rose / Seth F Harris / Ada Ndoja / Kim Newton / Vishva M Dixit /
Abstract: COP1 and DET1 are components of an E3 ubiquitin ligase that is conserved from plants to humans. Mammalian COP1 binds to DET1 and is a substrate adaptor for the CUL4A-DDB1-RBX1 RING E3 ligase. ...COP1 and DET1 are components of an E3 ubiquitin ligase that is conserved from plants to humans. Mammalian COP1 binds to DET1 and is a substrate adaptor for the CUL4A-DDB1-RBX1 RING E3 ligase. Transcription factor substrates, including c-Jun, ETV4, and ETV5, are targeted for proteasomal degradation to effect rapid transcriptional changes in response to cues such as growth factor deprivation. Here, we link a homozygous mutation to lethal developmental abnormalities in humans. Experimental cryo-electron microscopy of the DET1 complex with DDB1 and DDA1, as well as co-immunoprecipitation experiments, revealed that DET1 impairs binding to DDB1, thereby compromising E3 ligase function. Accordingly, human-induced pluripotent stem cells homozygous for expressed ETV4 and ETV5 highly, and exhibited defective mitochondrial homeostasis and aberrant caspase-dependent cell death when differentiated into neurons. Neuronal cell death was increased further in the presence of -deficient microglia as compared to WT microglia, indicating that the deleterious effects of the p.R26W mutation may stem from the dysregulation of multiple cell types. Mice lacking died during embryogenesis, while deletion just in neural stem cells elicited hydrocephalus, cerebellar dysplasia, and neonatal lethality. Our findings highlight an important role for DET1 in the neurological development of mice and humans.
History
DepositionSep 3, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 5, 2025Provider: repository / Type: Initial release
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: DNA damage-binding protein 1
B: DET1 homolog
C: DET1- and DDB1-associated protein 1


Theoretical massNumber of molelcules
Total (without water)205,6593
Polymers205,6593
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein DNA damage-binding protein 1 / DDB p127 subunit / DNA damage-binding protein a / DDBa / Damage-specific DNA-binding protein 1 / ...DDB p127 subunit / DNA damage-binding protein a / DDBa / Damage-specific DNA-binding protein 1 / HBV X-associated protein 1 / XAP-1 / UV-damaged DNA-binding factor / UV-damaged DNA-binding protein 1 / UV-DDB 1 / XPE-binding factor / XPE-BF / Xeroderma pigmentosum group E-complementing protein / XPCe


Mass: 129054.492 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DDB1, XAP1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q16531
#2: Protein DET1 homolog / De-etiolated-1 homolog


Mass: 64749.027 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DET1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q7L5Y6
#3: Protein DET1- and DDB1-associated protein 1 / Placenta cross-immune reaction antigen 1 / PCIA-1


Mass: 11855.297 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: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9BW61
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: DDB1:DDA1:DET1 / Type: COMPLEX / Details: Ternary complex of DDB1, DDA1, and DET1 / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.205 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
Buffer component
IDConc.NameFormulaBuffer-ID
1200 mMSodium ChlorideNaCl1
225 mMHEPES1
31 mMtris(2-carboxyethyl)phosphine1
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R0./1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm
Image recordingAverage exposure time: 0.25 sec. / Electron dose: 60 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1

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Processing

EM software
IDNameCategory
1cryoSPARCparticle selection
2SerialEMimage acquisition
4cryoSPARCCTF correction
7ISOLDEmodel fitting
9PHENIXmodel refinement
10cryoSPARCinitial Euler assignment
11cryoSPARCfinal Euler assignment
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1805888
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 49212 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00610262
ELECTRON MICROSCOPYf_angle_d0.66313877
ELECTRON MICROSCOPYf_dihedral_angle_d5.0991365
ELECTRON MICROSCOPYf_chiral_restr0.0471558
ELECTRON MICROSCOPYf_plane_restr0.0041794

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