[English] 日本語
Yorodumi
- EMDB-45224: Cryo EM structure of DCAF2 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-45224
TitleCryo EM structure of DCAF2
Map data
Sample
  • Complex: DCAF2
    • Protein or peptide: Denticleless protein homolog
    • Protein or peptide: DNA damage-binding protein 1
KeywordsDCAF2 / E3 ligase / DTL / DDB1 / LIGASE
Function / homology
Function and homology information


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 ...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 / mitotic G2 DNA damage checkpoint signaling / 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 / response to UV / negative regulation of adipose tissue development / regulation of cellular response to stress / viral release from host cell / protein monoubiquitination / cullin family protein binding / regulation of DNA-templated DNA replication initiation / positive regulation of viral genome replication / positive regulation of gluconeogenesis / positive regulation of G2/M transition of mitotic cell cycle / regulation of embryonic development / translesion synthesis / 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 / 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 / regulation of cell population proliferation / rhythmic process / site of double-strand break / chromosome / nuclear membrane / Neddylation / spermatogenesis / ubiquitin-dependent protein catabolic process / damaged DNA binding / proteasome-mediated ubiquitin-dependent protein catabolic process / regulation of apoptotic process / regulation of cell cycle / protein-macromolecule adaptor activity / chromosome, telomeric region / protein ubiquitination / DNA repair / centrosome / DNA damage response / nucleolus / protein-containing complex binding / protein-containing complex / DNA binding / : / extracellular exosome / nucleoplasm / nucleus / cytoplasm
Similarity search - Function
: / : / 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 / WD domain, G-beta repeat / WD40 repeat, conserved site ...: / : / 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 / WD domain, G-beta repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
DNA damage-binding protein 1 / Denticleless protein homolog
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.36 Å
AuthorsMcMahon EJ / Wang W
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Structure / Year: 2025
Title: Structural basis for DCAF2 as a novel E3 ligase for PROTAC-mediated targeted protein degradation.
Authors: Evan J McMahon / Alexander G Cioffi / Patrick R Visperas / Yueqing Lin / Michael Shaghafi / Courtney M Daczkowski / Johannes C Hermann / Robert A Everley / Richard M Neve / Daniel A Erlanson ...Authors: Evan J McMahon / Alexander G Cioffi / Patrick R Visperas / Yueqing Lin / Michael Shaghafi / Courtney M Daczkowski / Johannes C Hermann / Robert A Everley / Richard M Neve / Daniel A Erlanson / Kevin R Webster / Vikram Narayan / Weiru Wang /
Abstract: Targeted protein degradation (TPD) leverages the ubiquitin-proteasome system to eliminate disease-causing proteins via E3 ligases. To date, the field is limited to utilizing a few of the over 600 ...Targeted protein degradation (TPD) leverages the ubiquitin-proteasome system to eliminate disease-causing proteins via E3 ligases. To date, the field is limited to utilizing a few of the over 600 human E3 ligases. To expand this repertoire, we conducted structural and functional validation of DDB1 (Damage-specific DNA binding protein 1) and Cullin-associated factor (DCAF)2 (DTL/CDT2), a Cullin4-RING ligase substrate adaptor implicated in DNA damage response and cancer, as a novel E3 for TPD. Cryoelectron microscopy (cryo-EM) structures of the DCAF2:DDB1:DDA1 complex (3.3 Å), a ligand bound complex (3.1 Å), and a ternary complex with a covalent proteolysis-targeting chimera (PROTAC) and BRD4 (3.4 Å) reveal PROTAC-mediated substrate recruitment. Using covalent bifunctional tool compounds engaging residue C141 in the WD40 domain, we demonstrate robust ubiquitination in biochemical assays and cellular TPD using the COFFEE (covalent functionalization followed by E3 electroporation) method. These findings position DCAF2 as a promising E3 adaptor for PROTAC strategies and identify C141 as a relevant site for future PROTAC discovery.
History
DepositionJun 6, 2024-
Header (metadata) releaseOct 1, 2025-
Map releaseOct 1, 2025-
UpdateDec 17, 2025-
Current statusDec 17, 2025Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_45224.png

Downloads & links

-
Map

FileDownload / File: emd_45224.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 300 pix.
= 250.2 Å		0.83 Å/pix.
x 300 pix.
= 250.2 Å		0.83 Å/pix.
x 300 pix.
= 250.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.834 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.02092
Minimum - Maximum-0.8170004 - 1.3330154
Average (Standard dev.)-0.00025057927 (±0.033611245)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 250.2 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Half map: #1

Fileemd_45224_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_45224_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : DCAF2

EntireName: DCAF2
Components
  • Complex: DCAF2
    • Protein or peptide: Denticleless protein homolog
    • Protein or peptide: DNA damage-binding protein 1

-
Supramolecule #1: DCAF2

SupramoleculeName: DCAF2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

-
Macromolecule #1: Denticleless protein homolog

MacromoleculeName: Denticleless protein homolog / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 51.887121 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MLFNSVLRQP QLGVLRNGWS SQYPLQSLLT GYQCSGNDEH TSYGETGVPV PPFGCTFSSA PNMEHVLAVA NEEGFVRLYN TESQSFRKK CFKEWMAHWN AVFDLAWVPG ELKLVTAAGD QTAKFWDVKA GELIGTCKGH QCSLKSVAFS KFEKAVFCTG G RDGNIMVW ...String:
MLFNSVLRQP QLGVLRNGWS SQYPLQSLLT GYQCSGNDEH TSYGETGVPV PPFGCTFSSA PNMEHVLAVA NEEGFVRLYN TESQSFRKK CFKEWMAHWN AVFDLAWVPG ELKLVTAAGD QTAKFWDVKA GELIGTCKGH QCSLKSVAFS KFEKAVFCTG G RDGNIMVW DTRCNKKDGF YRQVNQISGA HNTSDKQTPS KPKKKQNSKG LAPSVDFQQS VTVVLFQDEN TLVSAGAVDG II KVWDLRK NYTAYRQEPI ASKSFLYPGS STRKLGYSSL ILDSTGSTLF ANCTDDNIYM FNMTGLKTSP VAIFNGHQNS TFY VKSSLS PDDQFLVSGS SDEAAYIWKV STPWQPPTVL LGHSQEVTSV CWCPSDFTKI ATCSDDNTLK IWRLNRGLEE KPGG DKLST VGWASQKKKE SRPGLVTVTS SQSTPAKAPR AKCNPSNSSP SSAACAPSCA GDLENLYFQS HHHHHH

UniProtKB: Denticleless protein homolog

-
Macromolecule #2: DNA damage-binding protein 1

MacromoleculeName: DNA damage-binding protein 1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 127.097469 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACIL EYKQSGESID IITRAHGNVQ DRIGRPSETG IIGIIDPECR MIGLRLYDGL FKVIPLDRDN KELKAFNIRL E ELHVIDVK ...String:
MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACIL EYKQSGESID IITRAHGNVQ DRIGRPSETG IIGIIDPECR MIGLRLYDGL FKVIPLDRDN KELKAFNIRL E ELHVIDVK FLYGCQAPTI CFVYQDPQGR HVKTYEVSLR EKEFNKGPWK QENVEAEASM VIAVPEPFGG AIIIGQESIT YH NGDKYLA IAPPIIKQST IVCHNRVDPN GSRYLLGDME GRLFMLLLEK EEQMDGTVTL KDLRVELLGE TSIAECLTYL DNG VVFVGS RLGDSQLVKL NVDSNEQGSY VVAMETFTNL GPIVDMCVVD LERQGQGQLV TCSGAFKEGS LRIIRNGIGI HEHA SIDLP GIKGLWPLRS DPNRETDDTL VLSFVGQTRV LMLNGEEVEE TELMGFVDDQ QTFFCGNVAH QQLIQITSAS VRLVS QEPK ALVSEWKEPQ AKNISVASCN SSQVVVAVGR ALYYLQIHPQ ELRQISHTEM EHEVACLDIT PLGDSNGLSP LCAIGL WTD ISARILKLPS FELLHKEMLG GEIIPRSILM TTFESSHYLL CALGDGALFY FGLNIETGLL SDRKKVTLGT QPTVLRT FR SLSTTNVFAC SDRPTVIYSS NHKLVFSNVN LKEVNYMCPL NSDGYPDSLA LANNSTLTIG TIDEIQKLHI RTVPLYES P RKICYQEVSQ CFGVLSSRIE VQDTSGGTTA LRPSASTQAL SSSVSSSKLF SSSTAPHETS FGEEVEVHNL LIIDQHTFE VLHAHQFLQN EYALSLVSCK LGKDPNTYFI VGTAMVYPEE AEPKQGRIVV FQYSDGKLQT VAEKEVKGAV YSMVEFNGKL LASINSTVR LYEWTTEKEL RTECNHYNNI MALYLKTKGD FILVGDLMRS VLLLAYKPME GNFEEIARDF NPNWMSAVEI L DDDNFLGA ENAFNLFVCQ KDSAATTDEE RQHLQEVGLF HLGEFVNVFC HGSLVMQNLG ETSTPTQGSV LFGTVNGMIG LV TSLSESW YNLLLDMQNR LNKVIKSVGK IEHSFWRSFH TERKTEPATG FIDGDLIESF LDISRPKMQE VVANLQYDDG SGM KREATA DDLIKVVEEL TRIH

UniProtKB: DNA damage-binding protein 1

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeTFS KRIOS
Specialist opticsPhase plate: VOLTA PHASE PLATE
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 7179 / Average exposure time: 1.4 sec. / Average electron dose: 51.87 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Particle selectionNumber selected: 2057826
CTF correctionSoftware - Name: cryoSPARC / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.36 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 124770
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
FSC plot (resolution estimation)

-
Atomic model buiding 1

Initial modelChain - Source name: AlphaFold / Chain - Initial model type: in silico model
Output model

PDB-9c5t:
Cryo EM structure of DCAF2

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more