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- EMDB-55108: Cryo-EM structure of the DDB1deltaB-CRBN-ALV2 complex bound to HELIOS -

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Basic information

Entry
Database: EMDB / ID: EMD-55108
TitleCryo-EM structure of the DDB1deltaB-CRBN-ALV2 complex bound to HELIOS
Map data
Sample
  • Complex: SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: Protein cereblon
    • Protein or peptide: Zinc finger protein Helios
  • Ligand: ZINC ION
  • Ligand: ~{N}-[2-[3-[[1-[(3~{S})-2,6-bis(oxidanylidene)piperidin-3-yl]-2,5-bis(oxidanylidene)pyrrol-3-yl]amino]phenyl]propan-2-yl]-2-[(3-chloranyl-4-methyl-phenyl)amino]ethanamide
KeywordsLIGASE
Function / homology
Function and homology information


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 / limb development / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / Cul4A-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 / limb development / 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 / viral release from host cell / cullin family protein binding / ectopic germ cell programmed cell death / positive regulation of viral genome replication / positive regulation of Wnt signaling pathway / negative regulation of protein-containing complex assembly / proteasomal protein catabolic process / positive regulation of gluconeogenesis / nucleotide-excision repair / sperm end piece / positive regulation of protein-containing complex assembly / sensory perception of sound / regulation of circadian rhythm / Recognition of DNA damage by PCNA-containing replication complex / DNA Damage Recognition in GG-NER / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Wnt signaling pathway / Formation of TC-NER Pre-Incision Complex / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / positive regulation of protein catabolic process / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to UV / rhythmic process / site of double-strand break / sperm principal piece / Neddylation / sperm midpiece / Potential therapeutics for SARS / ubiquitin-dependent protein catabolic process / damaged DNA binding / transmembrane transporter binding / proteasome-mediated ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / chromosome, telomeric region / RNA polymerase II cis-regulatory region sequence-specific DNA binding / protein ubiquitination / DNA-binding transcription factor activity / DNA repair / apoptotic process / DNA damage response / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / DNA-templated transcription / protein-containing complex binding / nucleolus / perinuclear region of cytoplasm / positive regulation of transcription by RNA polymerase II / protein-containing complex / : / DNA binding / extracellular exosome / zinc ion binding / nucleoplasm / membrane / metal ion binding / identical protein binding / nucleus / cytoplasm / cytosol
Similarity search - Function
: / Yippee/Mis18/Cereblon / Yippee zinc-binding/DNA-binding /Mis18, centromere assembly / CULT domain / CULT domain profile. / Lon N-terminal domain profile. / Lon protease, N-terminal domain / Lon protease, N-terminal domain superfamily / ATP-dependent protease La (LON) substrate-binding domain / Found in ATP-dependent protease La (LON) ...: / Yippee/Mis18/Cereblon / Yippee zinc-binding/DNA-binding /Mis18, centromere assembly / CULT domain / CULT domain profile. / Lon N-terminal domain profile. / Lon protease, N-terminal domain / Lon protease, N-terminal domain superfamily / ATP-dependent protease La (LON) substrate-binding domain / Found in ATP-dependent protease La (LON) / : / 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 / PUA-like superfamily / Zinc finger, C2H2 type / zinc finger / Zinc finger C2H2 type domain profile. / Zinc finger C2H2 superfamily / Zinc finger C2H2 type domain signature. / Zinc finger C2H2-type / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
DNA damage-binding protein 1 / Protein cereblon / Zinc finger protein Helios
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.64 Å
AuthorsGalli P / Kater L / Kempf G / Cavadini S / Thoma NH
Funding supportEuropean Union, Switzerland, 4 items
OrganizationGrant numberCountry
European Research Council (ERC)European Union
Swiss National Science Foundation Switzerland
Other private
Other private
CitationJournal: To Be Published
Title: Cryo-EM structure of the DDB1deltaB-CRBN-ALV2 complex bound to HELIOS
Authors: Galli P / Thoma NH
History
DepositionSep 19, 2025-
Header (metadata) releaseJun 17, 2026-
Map releaseJun 17, 2026-
UpdateJun 17, 2026-
Current statusJun 17, 2026Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_55108.png

Downloads & links

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Map

FileDownload / File: emd_55108.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.85 Å/pix.
x 384 pix.
= 324.48 Å		0.85 Å/pix.
x 384 pix.
= 324.48 Å		0.85 Å/pix.
x 384 pix.
= 324.48 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.845 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0444
Minimum - Maximum-0.0017465015 - 1.8349416
Average (Standard dev.)0.0005890947 (±0.018073305)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 324.48 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: #1

Fileemd_55108_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_55108_half_map_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_55108_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE

EntireName: SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE
Components
  • Complex: SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: Protein cereblon
    • Protein or peptide: Zinc finger protein Helios
  • Ligand: ZINC ION
  • Ligand: ~{N}-[2-[3-[[1-[(3~{S})-2,6-bis(oxidanylidene)piperidin-3-yl]-2,5-bis(oxidanylidene)pyrrol-3-yl]amino]phenyl]propan-2-yl]-2-[(3-chloranyl-4-methyl-phenyl)amino]ethanamide

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Supramolecule #1: SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE

SupramoleculeName: SALL4 bound to DDB1/CRBN in the presence of POMALIDOMIDE
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: DNA damage-binding protein 1

MacromoleculeName: DNA damage-binding protein 1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 96.425586 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MGSSHHHHHH SAAHIVMVDA YKPTKGGRMS YNYVVTAQKP TAVNGCVTGH FTSAEDLNLL IAKNTRLEIY VVTAEGLRPV KEVGMYGKI AVMELFRPKG ESKDLLFILT AKYNACILEY KQSGESIDII TRAHGNVQDR IGRPSETGII GIIDPECRMI G LRLYDGLF ...String:
MGSSHHHHHH SAAHIVMVDA YKPTKGGRMS YNYVVTAQKP TAVNGCVTGH FTSAEDLNLL IAKNTRLEIY VVTAEGLRPV KEVGMYGKI AVMELFRPKG ESKDLLFILT AKYNACILEY KQSGESIDII TRAHGNVQDR IGRPSETGII GIIDPECRMI G LRLYDGLF KVIPLDRDNK ELKAFNIRLE ELHVIDVKFL YGCQAPTICF VYQDPQGRHV KTYEVSLREK EFNKGPWKQE NV EAEASMV IAVPEPFGGA IIIGQESITY HNGDKYLAIA PPIIKQSTIV CHNRVDPNGS RYLLGDMEGR LFMLLLEKEE QMD GTVTLK DLRVELLGET SIAECLTYLD NGVVFVGSRL GDSQLVKLNV DSNEQGSYVV AMETFTNLGP IVDMCVVDLE RQGQ GQLVT CSGAFKEGSL RIIRNGIGGN GNSGEIQKLH IRTVPLYESP RKICYQEVSQ CFGVLSSRIE VQDTSGGTTA LRPSA STQA LSSSVSSSKL FSSSTAPHET SFGEEVEVHN LLIIDQHTFE VLHAHQFLQN EYALSLVSCK LGKDPNTYFI VGTAMV YPE EAEPKQGRIV VFQYSDGKLQ TVAEKEVKGA VYSMVEFNGK LLASINSTVR LYEWTTEKEL RTECNHYNNI MALYLKT KG DFILVGDLMR SVLLLAYKPM EGNFEEIARD FNPNWMSAVE ILDDDNFLGA ENAFNLFVCQ KDSAATTDEE RQHLQEVG L FHLGEFVNVF CHGSLVMQNL GETSTPTQGS VLFGTVNGMI GLVTSLSESW YNLLLDMQNR LNKVIKSVGK IEHSFWRSF HTERKTEPAT GFIDGDLIES FLDISRPKMQ EVVANLQYDD GSGMKREATA DDLIKVVEEL TRIH

UniProtKB: DNA damage-binding protein 1, DNA damage-binding protein 1

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Macromolecule #2: Protein cereblon

MacromoleculeName: Protein cereblon / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 53.290535 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MGSSHHHHHH SAVDENLYFQ GGGRMAGEGD QQDAAHNMGN HLPLLPAESE EEDEMEVEDQ DSKEAKKPNI INFDTSLPTS HTYLGADME EFHGRTLHDD DSCQVIPVLP QVMMILIPGQ TLPLQLFHPQ EVSMVRNLIQ KDRTFAVLAY SNVQEREAQF G TTAEIYAY ...String:
MGSSHHHHHH SAVDENLYFQ GGGRMAGEGD QQDAAHNMGN HLPLLPAESE EEDEMEVEDQ DSKEAKKPNI INFDTSLPTS HTYLGADME EFHGRTLHDD DSCQVIPVLP QVMMILIPGQ TLPLQLFHPQ EVSMVRNLIQ KDRTFAVLAY SNVQEREAQF G TTAEIYAY REEQDFGIEI VKVKAIGRQR FKVLELRTQS DGIQQAKVQI LPECVLPSTM SAVQLESLNK CQIFPSKPVS RE DQCSYKW WQKYQKRKFH CANLTSWPRW LYSLYDAETL MDRIKKQLRE WDENLKDDSL PSNPIDFSYR VAACLPIDDV LRI QLLKIG SAIQRLRCEL DIMNKCTSLC CKQCQETEIT TKNEIFSLSL CGPMAAYVNP HGYVHETLTV YKACNLNLIG RPST EHSWF PGYAWTVAQC KICASHIGWK FTATKKDMSP QKFWGLTRSA LLPTIPDTED EISPDKVILC L

UniProtKB: Protein cereblon

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Macromolecule #3: Zinc finger protein Helios

MacromoleculeName: Zinc finger protein Helios / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.92009 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MDWSHPQFEK SAVDENLYFQ GGGRKVQELQ GEGGIRLPNG KLKCDVCGMV CIGPNVLMVH KRSHTGERPF HCNQCGASFT QKGNLLRHI KLHSGEKPFK CPFCSYACRR RDALTGHLRT HSVGK

UniProtKB: Zinc finger protein Helios

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Macromolecule #4: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 4 / Number of copies: 3 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #5: ~{N}-[2-[3-[[1-[(3~{S})-2,6-bis(oxidanylidene)piperidin-3-yl]-2,5...

MacromoleculeName: ~{N}-[2-[3-[[1-[(3~{S})-2,6-bis(oxidanylidene)piperidin-3-yl]-2,5-bis(oxidanylidene)pyrrol-3-yl]amino]phenyl]propan-2-yl]-2-[(3-chloranyl-4-methyl-phenyl)amino]ethanamide
type: ligand / ID: 5 / Number of copies: 1 / Formula: A1JPR
Molecular weightTheoretical: 537.995 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.64 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 87668
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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