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- EMDB-37736: Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-d... -
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Basic information
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Title | Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CCDC89 (conformation 1) | |||||||||
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![]() | E3 ubiquitin ligase / Pro/C-degron / LIGASE | |||||||||
Function / homology | ![]() regulation of ubiquitin-protein transferase activity / epithelial cell maturation involved in prostate gland development / branching involved in prostate gland morphogenesis / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway ...regulation of ubiquitin-protein transferase activity / epithelial cell maturation involved in prostate gland development / branching involved in prostate gland morphogenesis / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / VCB complex / elongin complex / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / protein neddylation / death receptor binding / regulation of extrinsic apoptotic signaling pathway via death domain receptors / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / Prolactin receptor signaling / cullin family protein binding / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / protein monoubiquitination / ubiquitin ligase complex / Tat-mediated elongation of the HIV-1 transcript / ubiquitin-like ligase-substrate adaptor activity / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / protein K48-linked ubiquitination / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / positive regulation of TORC1 signaling / regulation of cellular response to insulin stimulus / post-translational protein modification / intrinsic apoptotic signaling pathway / Regulation of BACH1 activity / T cell activation / transcription corepressor binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / Degradation of DVL / cellular response to amino acid stimulus / transcription elongation by RNA polymerase II / Degradation of GLI1 by the proteasome / Recognition of DNA damage by PCNA-containing replication complex / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / negative regulation of canonical Wnt signaling pathway / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / DNA Damage Recognition in GG-NER / Degradation of beta-catenin by the destruction complex / RING-type E3 ubiquitin transferase / Inactivation of CSF3 (G-CSF) signaling / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Evasion by RSV of host interferon responses / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / NOTCH1 Intracellular Domain Regulates Transcription / Formation of TC-NER Pre-Incision Complex / Regulation of expression of SLITs and ROBOs / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Formation of Incision Complex in GG-NER / G1/S transition of mitotic cell cycle / Interleukin-1 signaling / Orc1 removal from chromatin / Dual incision in TC-NER / Regulation of RAS by GAPs / Gap-filling DNA repair synthesis and ligation in TC-NER / protein polyubiquitination / positive regulation of protein catabolic process / ubiquitin-protein transferase activity / Regulation of RUNX2 expression and activity / cellular response to UV / MAPK cascade / KEAP1-NFE2L2 pathway / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Neddylation Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.39 Å | |||||||||
![]() | Chen X / Zhang K / Xu C | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Mechanism of Ψ-Pro/C-degron recognition by the CRL2 ubiquitin ligase. Authors: Xinyan Chen / Anat Raiff / Shanshan Li / Qiong Guo / Jiahai Zhang / Hualin Zhou / Richard T Timms / Xuebiao Yao / Stephen J Elledge / Itay Koren / Kaiming Zhang / Chao Xu / ![]() ![]() ![]() ![]() Abstract: The E3 ligase-degron interaction determines the specificity of the ubiquitin‒proteasome system. We recently discovered that FEM1B, a substrate receptor of Cullin 2-RING ligase (CRL2), recognizes C- ...The E3 ligase-degron interaction determines the specificity of the ubiquitin‒proteasome system. We recently discovered that FEM1B, a substrate receptor of Cullin 2-RING ligase (CRL2), recognizes C-degrons containing a C-terminal proline. By solving several cryo-EM structures of CRL2 bound to different C-degrons, we elucidate the dimeric assembly of the complex. Furthermore, we reveal distinct dimerization states of unmodified and neddylated CRL2 to uncover the NEDD8-mediated activation mechanism of CRL2. Our research also indicates that, FEM1B utilizes a bipartite mechanism to recognize both the C-terminal proline and an upstream aromatic residue within the substrate. These structural findings, complemented by in vitro ubiquitination and in vivo cell-based assays, demonstrate that CRL2-mediated polyubiquitination and subsequent protein turnover depend on both FEM1B-degron interactions and the dimerization state of the E3 ligase complex. Overall, this study deepens our molecular understanding of how Cullin-RING E3 ligase substrate selection mediates protein turnover. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 483.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.8 KB 21.8 KB | Display Display | ![]() |
Images | ![]() | 80.8 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
Others | ![]() ![]() | 475.7 MB 475.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 971.9 KB | Display | ![]() |
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Full document | ![]() | 971.5 KB | Display | |
Data in XML | ![]() | 18.8 KB | Display | |
Data in CIF | ![]() | 22.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8wqaMC ![]() 8wqbC ![]() 8wqcC ![]() 8wqdC ![]() 8wqeC ![]() 8wqfC ![]() 8wqgC ![]() 8wqhC ![]() 8wqiC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.82 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_37736_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_37736_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-d...
Entire | Name: Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CCDC89 (conformation 1) |
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Components |
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-Supramolecule #1: Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-d...
Supramolecule | Name: Cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CCDC89 (conformation 1) type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Cullin-2
Macromolecule | Name: Cullin-2 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 87.11475 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: SASWSHPQFE KGGGSGGGSG TSLKPRVVDF DETWNKLLTT IKAVVMLEYV ERATWNDRFS DIYALCVAYP EPLGERLYTE TKIFLENHV RHLHKRVLES EEQVLVMYHR YWEEYSKGAD YMDCLYRYLN TQFIKKNGGG PLMEIGELAL DMWRKLMVEP L QAILIRML ...String: SASWSHPQFE KGGGSGGGSG TSLKPRVVDF DETWNKLLTT IKAVVMLEYV ERATWNDRFS DIYALCVAYP EPLGERLYTE TKIFLENHV RHLHKRVLES EEQVLVMYHR YWEEYSKGAD YMDCLYRYLN TQFIKKNGGG PLMEIGELAL DMWRKLMVEP L QAILIRML LREIKNDRGG EDPNQKVIHG VINSFVHVEQ YKKKFPLKFY QEIFESPFLT ETGEYYKQEA SNLLQESNCS QY MEKVLGR LKDEEIRCRK YLHPSSYTKV IHECQQRMVA DHLQFLHAEC HNIIRQEKKN DMANMYVLLR AVSTGLPHMI QEL QNHIHD EGLRATSNLT QENMPTLFVE SVLEVHGKFV QLINTVLNGD QHFMSALDKA LTSVVNYREP KSVCKAPELL AKYC DNLLK KSAKGMTENE VEDRLTSFIT VFKYIDDKDV FQKFYARMLA KRLIHGLSMS MDSEEAMINK LKQACGYEFT SKLHR MYTD MSVSADLNNK FNNFIKNQDT VIDLGISFQI YVLQAGAWPL TQAPSSTFAI PQELEKSVQM FELFYSQHFS GRKLTW LHY LCTGEVKMNY LGKPYVAMVT TYQMAVLLAF NNSETVSYKE LQDSTQMNEK ELTKTIKSLL DVKMINHDSE KEDIDAE SS FSLNMNFSSK RTKFKITTSM QKDTPQEMEQ TRSAVDEDRK MYLQAAIVRI MKARKVLRHN ALIQEVISQS RARFNPSI S MIKKCIEVLI DKQYIERSQA SADEYSYVA UniProtKB: Cullin-2 |
-Macromolecule #2: Protein fem-1 homolog B
Macromolecule | Name: Protein fem-1 homolog B / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 70.355062 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MEGLAGYVYK AASEGKVLTL AALLLNRSES DIRYLLGYVS QQGGQRSTPL IIAARNGHAK VVRLLLEHYR VQTQQTGTVR FDGYVIDGA TALWCAAGAG HFEVVKLLVS HGANVNHTTV TNSTPLRAAC FDGRLDIVKY LVENNANISI ANKYDNTCLM I AAYKGHTD ...String: MEGLAGYVYK AASEGKVLTL AALLLNRSES DIRYLLGYVS QQGGQRSTPL IIAARNGHAK VVRLLLEHYR VQTQQTGTVR FDGYVIDGA TALWCAAGAG HFEVVKLLVS HGANVNHTTV TNSTPLRAAC FDGRLDIVKY LVENNANISI ANKYDNTCLM I AAYKGHTD VVRYLLEQRA DPNAKAHCGA TALHFAAEAG HIDIVKELIK WRAAIVVNGH GMTPLKVAAE SCKADVVELL LS HADCDRR SRIEALELLG ASFANDRENY DIIKTYHYLY LAMLERFQDG DNILEKEVLP PIHAYGNRTE CRNPQELESI RQD RDALHM EGLIVRERIL GADNIDVSHP IIYRGAVYAD NMEFEQCIKL WLHALHLRQK GNRNTHKDLL RFAQVFSQMI HLNE TVKAP DIECVLRCSV LEIEQSMNRV KNISDADVHN AMDNYECNLY TFLYLVCIST KTQCSEEDQC KINKQIYNLI HLDPR TREG FTLLHLAVNS NTPVDDFHTN DVCSFPNALV TKLLLDCGAE VNAVDNEGNS ALHIIVQYNR PISDFLTLHS IIISLV EAG AHTDMTNKQN KTPLDKSTTG VSEILLKTQM KMSLKCLAAR AVRANDINYQ DQIPRTLEEF VGFH UniProtKB: Protein fem-1 homolog B |
-Macromolecule #3: Elongin-C
Macromolecule | Name: Elongin-C / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 10.84342 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MYVKLISSDG HEFIVKREHA LTSGTIKAML SGPGQFAENE TNEVNFREIP SHVLSKVCMY FTYKVRYTNS STEIPEFPIA PEIALELLM AANFLDC UniProtKB: Elongin-C |
-Macromolecule #4: Elongin-B
Macromolecule | Name: Elongin-B / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 13.147781 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MDVFLMIRRH KTTIFTDAKE SSTVFELKRI VEGILKRPPD EQRLYKDDQL LDDGKTLGEC GFTSQTARPQ APATVGLAFR ADDTFEALC IEPFSSPPEL PDVMKPQDSG SSANEQAVQ UniProtKB: Elongin-B |
-Macromolecule #5: E3 ubiquitin-protein ligase RBX1, N-terminally processed
Macromolecule | Name: E3 ubiquitin-protein ligase RBX1, N-terminally processed type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.19683 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: SHMGAGKKRF EVKKWNAVAL WAWDIVVDNC AICRNHIMDL CIECQANQAS ATSEECTVAW GVCNHAFHFH CISRWLKTRQ VCPLDNREW EFQKYGH UniProtKB: E3 ubiquitin-protein ligase RBX1 |
-Macromolecule #6: Coiled-coil domain-containing protein 89
Macromolecule | Name: Coiled-coil domain-containing protein 89 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 3.223647 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GGGSGGGSKK HSLDLLSKER ELNGKLRHLS P UniProtKB: Coiled-coil domain-containing protein 89 |
-Macromolecule #7: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 7 / Number of copies: 6 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 5 mg/mL |
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Buffer | pH: 7.5 |
Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 20 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number real images: 4472 / Average electron dose: 57.6 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.9 µm / Nominal defocus min: 1.5 µm |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.39 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 23621 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |