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Open data
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Basic information
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| Title | protein structure of DDB1-DDA1-DET1-Ube2e2 bound to COP1 dimer | |||||||||
Map data | full map | |||||||||
Sample |
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Keywords | E3 ligase / LIGASE | |||||||||
| Function / homology | Function and homology informationISG15 transferase activity / ISG15-protein conjugation / cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / protein K11-linked ubiquitination / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / E2 ubiquitin-conjugating enzyme / biological process involved in interaction with symbiont ...ISG15 transferase activity / ISG15-protein conjugation / cullin-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / protein K11-linked ubiquitination / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / E2 ubiquitin-conjugating enzyme / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / response to ionizing radiation / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / ubiquitin conjugating enzyme activity / negative regulation of reproductive process / negative regulation of developmental process / viral release from host cell / cullin family protein binding / protein K63-linked ubiquitination / protein monoubiquitination / positive regulation of G1/S transition of mitotic cell cycle / ectopic germ cell programmed cell death / positive regulation of viral genome replication / ubiquitin-like ligase-substrate adaptor activity / protein K48-linked ubiquitination / proteasomal protein catabolic process / positive regulation of gluconeogenesis / nucleotide-excision repair / Autodegradation of the E3 ubiquitin ligase COP1 / Recognition of DNA damage by PCNA-containing replication complex / regulation of circadian rhythm / RING-type E3 ubiquitin transferase / 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 / protein polyubiquitination / Dual incision in TC-NER / ubiquitin-protein transferase activity / Gap-filling DNA repair synthesis and ligation in TC-NER / positive regulation of protein catabolic process / ubiquitin protein ligase activity / cellular response to UV / rhythmic process / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Antigen processing: Ubiquitination & Proteasome degradation / 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 / nuclear speck / protein ubiquitination / Golgi membrane / DNA repair / apoptotic process / DNA damage response / ubiquitin protein ligase binding / negative regulation of apoptotic process / protein-containing complex binding / nucleolus / protein-containing complex / extracellular space / DNA binding / extracellular exosome / zinc ion binding / nucleoplasm / ATP binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.62 Å | |||||||||
Authors | Su M-Y / Wang S / Teng F | |||||||||
| Funding support | China, 1 items
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Citation | Journal: Nat Commun / Year: 2026Title: Cryo-EM structure of the human COP1-DET1 ubiquitin ligase complex. Authors: Shan Wang / Fei Teng / Goran Stjepanovic / Feng Rao / Ming-Yuan Su / ![]() Abstract: Ubiquitin modifications regulate fundamental cellular activities by modulating protein stability and function. The ubiquitin ligase COP1, which is present across species from plants to humans, plays ...Ubiquitin modifications regulate fundamental cellular activities by modulating protein stability and function. The ubiquitin ligase COP1, which is present across species from plants to humans, plays a crucial role in the ubiquitination of developmental transcription factors. While COP1 can function independently, it can also be incorporated into CULLIN4-RING ubiquitin ligase (CRL4) complexes through the DET1 adaptor protein. Despite its biological significance, the structural and functional mechanisms of COP1 and DET1-containing complexes remains poorly understood. Here we present the cryo-electron microscopy structures of human COP1 in complex with DDB1-DDA1-DET1 and Ube2e2, revealing an inactive stacked assembly state. Co-expression with COP1 substrates including c-Jun or ETS2 disrupts this configuration, inducing a conformational rearrangement into a distinct dimeric state that allows substrate access. Structural modelling identifies the spatial organization of COP1 WD40 domains where substrate recruits. DET1 serves as a structural scaffold, bridging COP1 and Ube2e2 to initiate potential ubiquitin addition on substrates, while DDB1 recruits the CULLIN4-RBX1 complex to facilitate Ube2d3-mediated ubiquitin chain elongation. These results reveal the dynamic interplay between the structural states of the CRL4 E3 ligase complex and its substrate specific activation mechanism, offering mechanistic insights into ubiquitination regulation and a basis for future studies on E3 ligase dynamics. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_63386.map.gz | 410.5 MB | EMDB map data format | |
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| Header (meta data) | emd-63386-v30.xml emd-63386.xml | 25.2 KB 25.2 KB | Display Display | EMDB header |
| Images | emd_63386.png | 35.7 KB | ||
| Filedesc metadata | emd-63386.cif.gz | 7.5 KB | ||
| Others | emd_63386_additional_1.map.gz emd_63386_half_map_1.map.gz emd_63386_half_map_2.map.gz | 726.7 MB 764.6 MB 764.6 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-63386 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-63386 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9lu1MC ![]() 9ltjC ![]() 9ltlC ![]() 9ltoC ![]() 9ltrC ![]() 9ltwC ![]() 9ltzC ![]() 9lulC ![]() 9m0yC ![]() 9w90C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_63386.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | full map | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: deepemhancer post-processing map
| File | emd_63386_additional_1.map | ||||||||||||
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| Annotation | deepemhancer post-processing map | ||||||||||||
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-Half map: half map - B
| File | emd_63386_half_map_1.map | ||||||||||||
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| Annotation | half map - B | ||||||||||||
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| Density Histograms |
-Half map: half map - A
| File | emd_63386_half_map_2.map | ||||||||||||
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| Annotation | half map - A | ||||||||||||
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| Density Histograms |
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Sample components
-Entire : protein complex of DDB1-DDA1-DET1-Ube2e2 bound to COP1 dimer
| Entire | Name: protein complex of DDB1-DDA1-DET1-Ube2e2 bound to COP1 dimer |
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| Components |
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-Supramolecule #1: protein complex of DDB1-DDA1-DET1-Ube2e2 bound to COP1 dimer
| Supramolecule | Name: protein complex of DDB1-DDA1-DET1-Ube2e2 bound to COP1 dimer type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1, #4-#5, #3, #2 |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 390 KDa |
-Macromolecule #1: E3 ubiquitin-protein ligase COP1
| Macromolecule | Name: E3 ubiquitin-protein ligase COP1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: RING-type E3 ubiquitin transferase |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 80.569242 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MSGSRQAGSG SAGTSPGSSA ASSVTSASSS LSSSPSPPSV AVSAAALVSG GVAQAAGSGG LGGPVRPVLV APAVSGSGGG AVSTGLSRH SCAARPSAGV GGSSSSLGSG SRKRPLLAPL CNGLINSYED KSNDFVCPIC FDMIEEAYMT KCGHSFCYKC I HQSLEDNN ...String: MSGSRQAGSG SAGTSPGSSA ASSVTSASSS LSSSPSPPSV AVSAAALVSG GVAQAAGSGG LGGPVRPVLV APAVSGSGGG AVSTGLSRH SCAARPSAGV GGSSSSLGSG SRKRPLLAPL CNGLINSYED KSNDFVCPIC FDMIEEAYMT KCGHSFCYKC I HQSLEDNN RCPKCNYVVD NIDHLYPNFL VNELILKQKQ RFEEKRFKLD HSVSSTNGHR WQIFQDWLGT DQDNLDLANV NL MLELLVQ KKKQLEAESH AAQLQILMEF LKVARRNKRE QLEQIQKELS VLEEDIKRVE EMSGLYSPVS EDSTVPQFEA PSP SHSSII DSTEYSQPPG FSGSSQTKKQ PWYNSTLASR RKRLTAHFED LEQCYFSTRM SRISDDSRTA SQLDEFQECL SKFT RYNSV RPLATLSYAS DLYNGSSIVS SIEFDRDCDY FAIAGVTKKI KVYEYDTVIQ DAVDIHYPEN EMTCNSKISC ISWSS YHKN LLASSDYEGT VILWDGFTGQ RSKVYQEHEK RCWSVDFNLM DPKLLASGSD DAKVKLWSTN LDNSVASIEA KANVCC VKF SPSSRYHLAF GCADHCVHYY DLRNTKQPIM VFKGHRKAVS YAKFVSGEEI VSASTDSQLK LWNVGKPYCL RSFKGHI NE KNFVGLASNG DYIACGSENN SLYLYYKGLS KTLLTFKFDT VKSVLDKDRK EDDTNEFVSA VCWRALPDGE SNVLIAAN S QGTIKVLELV UniProtKB: E3 ubiquitin-protein ligase COP1 |
-Macromolecule #2: DET1- and DDB1-associated protein 1
| Macromolecule | Name: DET1- and DDB1-associated protein 1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 11.855297 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MADFLKGLPV YNKSNFSRFH ADSVCKASNR RPSVYLPTRE YPSEQIIVTE KTNILLRYLH QQWDKKNAAK KRDQEQVELE GESSAPPRK VARTDSPDMH EDT UniProtKB: DET1- and DDB1-associated protein 1 |
-Macromolecule #3: Ubiquitin-conjugating enzyme E2 E2
| Macromolecule | Name: Ubiquitin-conjugating enzyme E2 E2 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: E2 ubiquitin-conjugating enzyme |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 22.236002 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MSTEAQRVDD SPSTSGGSSD GDQRESVQQE PEREQVQPKK KEGKISSKTA AKLSTSAKRI QKELAEITLD PPPNCGAGPK GDNIYEWRS TILGPPGSVY EGGVFFLDIT FSPDYPFKPP KVTFRTRIYH CNINSQGVIS LDILKDNWSP ALTISKVLLS I CSLLTDCN ...String: MSTEAQRVDD SPSTSGGSSD GDQRESVQQE PEREQVQPKK KEGKISSKTA AKLSTSAKRI QKELAEITLD PPPNCGAGPK GDNIYEWRS TILGPPGSVY EGGVFFLDIT FSPDYPFKPP KVTFRTRIYH CNINSQGVIS LDILKDNWSP ALTISKVLLS I CSLLTDCN PADPLVGSIA TQYMTNRAEH DRMARQWTKR YAT UniProtKB: Ubiquitin-conjugating enzyme E2 E2 |
-Macromolecule #4: DET1 homolog
| Macromolecule | Name: DET1 homolog / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 63.931367 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MDHHVSTIKP RRIQNQNVIH RLERRRISSG KAGTHWHQVR VFHQNVFPNF TVVNVEKPPC FLRKFSPDGR YFIAFSSDQT SLEIYEYQG CQAAEDLLQG YEGEILSNGN DQRSVNIRGR LFERFFVLLH ITNVAANGEH LNRECSLFTD DCRCVIVGSA A YLPDEPHP ...String: MDHHVSTIKP RRIQNQNVIH RLERRRISSG KAGTHWHQVR VFHQNVFPNF TVVNVEKPPC FLRKFSPDGR YFIAFSSDQT SLEIYEYQG CQAAEDLLQG YEGEILSNGN DQRSVNIRGR LFERFFVLLH ITNVAANGEH LNRECSLFTD DCRCVIVGSA A YLPDEPHP PFFEVYRNSE SVTPNPRSPL EDYSLHIIDL HTGRLCDTRT FKCDKVVLSH NQGLYLYKNI LAILSVQQQT IH VFQVTPE GTFIDVRTIG RFCYEDDLLT VSAVFPEVQR DSQTGMANPF RDPFINSLKH RLLVYLWRRA EQDGSAMAKR RFF QYFDQL RQLRMWKMQL LDENHLFIKY TSEDVVTLRV TDPSQASFFV VYNMVTTEVI AVFENTSDEL LELFENFCDL FRNA TLHSE VQFPCSASSN NFARQIQRRF KDTIINAKYG GHTEAVRRLL GQLPISAQSY SGSPYLDLSL FSYDDKWVSV MERPK TCGD HPIRFYARDS GLLKFEIQAG LLGRPINHTV RRLVAFTFHP FEPFAISVQR TNAEYVVNFH MRHCCT UniProtKB: DET1 homolog |
-Macromolecule #5: DNA damage-binding protein 1
| Macromolecule | Name: DNA damage-binding protein 1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 127.097469 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: 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
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.225 mg/mL |
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| Buffer | pH: 7.4 |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 48.89 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.2 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
China, 1 items
Citation























Z (Sec.)
Y (Row.)
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Processing
FIELD EMISSION GUN

