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Yorodumi- EMDB-19858: Focused map 3 - K48-linked ubiquitin chain formation with a culli... -
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-Basic information
Entry | Database: EMDB / ID: EMD-19858 | |||||||||
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Title | Focused map 3 - K48-linked ubiquitin chain formation with a cullin-RING E3 ligase & Cdc34: NEDD8-CUL2-RBX1-ELOB/C-FEM1C with trapped UBE2R2~donor UB~acceptor UB-SIL1 peptide | |||||||||
Map data | DeepEMhancer map | |||||||||
Sample |
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Keywords | CUL2 / FEM1C / ELOBC / SIL1 / Ubiquitin / Ubiquitin Ligase / Ubiquitin chain formation / Poliubiquitylation / LIGASE | |||||||||
Biological species | Homo sapiens (human) / 9606 (fungus) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.89 Å | |||||||||
Authors | Liwocha J / Prabu JR / Kleiger G / Schulman BA | |||||||||
Funding support | Germany, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024 Title: Mechanism of millisecond Lys48-linked poly-ubiquitin chain formation by cullin-RING ligases. Authors: Joanna Liwocha / Jerry Li / Nicholas Purser / Chutima Rattanasopa / Samuel Maiwald / David T Krist / Daniel C Scott / Barbara Steigenberger / J Rajan Prabu / Brenda A Schulman / Gary Kleiger / Abstract: E3 ubiquitin ligases, in collaboration with E2 ubiquitin-conjugating enzymes, modify proteins with poly-ubiquitin chains. Cullin-RING ligase (CRL) E3s use Cdc34/UBE2R-family E2s to build Lys48-linked ...E3 ubiquitin ligases, in collaboration with E2 ubiquitin-conjugating enzymes, modify proteins with poly-ubiquitin chains. Cullin-RING ligase (CRL) E3s use Cdc34/UBE2R-family E2s to build Lys48-linked poly-ubiquitin chains to control an enormous swath of eukaryotic biology. Yet the molecular mechanisms underlying this exceptional linkage specificity and millisecond kinetics of poly-ubiquitylation remain unclear. Here we obtain cryogenic-electron microscopy (cryo-EM) structures that provide pertinent insight into how such poly-ubiquitin chains are forged. The CRL RING domain not only activates the E2-bound ubiquitin but also shapes the conformation of a distinctive UBE2R2 loop, positioning both the ubiquitin to be transferred and the substrate-linked acceptor ubiquitin within the active site. The structures also reveal how the ubiquitin-like protein NEDD8 uniquely activates CRLs during chain formation. NEDD8 releases the RING domain from the CRL, but unlike previous CRL-E2 structures, does not contact UBE2R2. These findings suggest how poly-ubiquitylation may be accomplished by many E2s and E3s. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_19858.map.gz | 182.7 MB | EMDB map data format | |
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Header (meta data) | emd-19858-v30.xml emd-19858.xml | 25.2 KB 25.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_19858_fsc.xml | 13.5 KB | Display | FSC data file |
Images | emd_19858.png | 55.9 KB | ||
Masks | emd_19858_msk_1.map | 209.3 MB | Mask map | |
Filedesc metadata | emd-19858.cif.gz | 6 KB | ||
Others | emd_19858_additional_1.map.gz emd_19858_half_map_1.map.gz emd_19858_half_map_2.map.gz | 8.9 MB 166.1 MB 166.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-19858 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-19858 | HTTPS FTP |
-Validation report
Summary document | emd_19858_validation.pdf.gz | 774.3 KB | Display | EMDB validaton report |
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Full document | emd_19858_full_validation.pdf.gz | 773.9 KB | Display | |
Data in XML | emd_19858_validation.xml.gz | 21.1 KB | Display | |
Data in CIF | emd_19858_validation.cif.gz | 27.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-19858 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-19858 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_19858.map.gz / Format: CCP4 / Size: 209.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | DeepEMhancer map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8512 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_19858_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: Postprocessed map
File | emd_19858_additional_1.map | ||||||||||||
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Annotation | Postprocessed map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_19858_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_19858_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : K48-linked ubiquitin chain formation with a cullin-RING E3 ligase...
Entire | Name: K48-linked ubiquitin chain formation with a cullin-RING E3 ligase and CDC34:NEDD8-CUL2-RBX1-ELOB/C-FEM1C with trapped UBE2R2-donor UB-acceptor UB-SIL1 peptide |
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Components |
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-Supramolecule #1: K48-linked ubiquitin chain formation with a cullin-RING E3 ligase...
Supramolecule | Name: K48-linked ubiquitin chain formation with a cullin-RING E3 ligase and CDC34:NEDD8-CUL2-RBX1-ELOB/C-FEM1C with trapped UBE2R2-donor UB-acceptor UB-SIL1 peptide type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Molecular weight | Theoretical: 0.19 kDa/nm |
-Supramolecule #2: RING E3 ligase (RBX1)
Supramolecule | Name: RING E3 ligase (RBX1) / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #4 |
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Source (natural) | Organism: Homo sapiens (human) |
-Supramolecule #3: CDC34, NEDD8, FEM1C with UBE2R2-donor UB-acceptor UB-SIL1 peptide...
Supramolecule | Name: CDC34, NEDD8, FEM1C with UBE2R2-donor UB-acceptor UB-SIL1 peptide and K48-linked ubiquitin chain type: complex / ID: 3 / Parent: 1 / Macromolecule list: #1-#3, #5 |
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Source (natural) | Organism: 9606 (fungus) |
-Macromolecule #1: Ubiquitin-conjugating enzyme E2 R2
Macromolecule | Name: Ubiquitin-conjugating enzyme E2 R2 / type: protein_or_peptide / ID: 1 / 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: 27.190932 KDa |
Recombinant expression | Organism: Escherichia coli BL21 (bacteria) |
Sequence | String: MAQQQMTSSQ KALMLELKSL QEEPVEGFRI TLVDESDLYN WEVAIFGPPN TLYEGGYFKA HIKFPIDYPY SPPTFRFLTK MWHPNIYEN GDVCISILHP PVDDPQSGEL PSERWNPTQN VRTILLSVIS LLNEPNTFSP ANVDASVMFR KWRDSKGKDK E YAEIIRKQ ...String: MAQQQMTSSQ KALMLELKSL QEEPVEGFRI TLVDESDLYN WEVAIFGPPN TLYEGGYFKA HIKFPIDYPY SPPTFRFLTK MWHPNIYEN GDVCISILHP PVDDPQSGEL PSERWNPTQN VRTILLSVIS LLNEPNTFSP ANVDASVMFR KWRDSKGKDK E YAEIIRKQ VSATKAEAEK DGVKVPTTLA EYCIKTKVPS NDNSSDLLYD DLYDDDIDDE DEEEEDADCY DDDDSGNEES |
-Macromolecule #2: Polyubiquitin-C,Nucleotide exchange factor SIL1
Macromolecule | Name: Polyubiquitin-C,Nucleotide exchange factor SIL1 / 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: 79.226711 KDa |
Recombinant expression | Organism: Escherichia coli BL21 (bacteria) |
Sequence | String: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGCQL EDGRTLSDYN IQKESTLHLV LRLRGGMQIF VKTLTGKTI TLEVEPSDTI ENVKAKIQDK EGIPPDQQRL IFAGKQLEDG RTLSDYNIQK ESTLHLVLRL RGGMQIFVKT L TGKTITLE ...String: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGCQL EDGRTLSDYN IQKESTLHLV LRLRGGMQIF VKTLTGKTI TLEVEPSDTI ENVKAKIQDK EGIPPDQQRL IFAGKQLEDG RTLSDYNIQK ESTLHLVLRL RGGMQIFVKT L TGKTITLE VEPSDTIENV KAKIQDKEGI PPDQQRLIFA GKQLEDGRTL SDYNIQKEST LHLVLRLRGG MQIFVKTLTG KT ITLEVEP SDTIENVKAK IQDKEGIPPD QQRLIFAGKQ LEDGRTLSDY NIQKESTLHL VLRLRGGMQI FVKTLTGKTI TLE VEPSDT IENVKAKIQD KEGIPPDQQR LIFAGKQLED GRTLSDYNIQ KESTLHLVLR LRGGMQIFVK TLTGKTITLE VEPS DTIEN VKAKIQDKEG IPPDQQRLIF AGKQLEDGRT LSDYNIQKES TLHLVLRLRG GMQIFVKTLT GKTITLEVEP SDTIE NVKA KIQDKEGIPP DQQRLIFAGK QLEDGRTLSD YNIQKESTLH LVLRLRGGMQ IFVKTLTGKT ITLEVEPSDT IENVKA KIQ DKEGIPPDQQ RLIFAGKQLE DGRTLSDYNI QKESTLHLVL RLRGGMQIFV KTLTGKTITL EVEPSDTIEN VKAKIQD KE GIPPDQQRLI FAGKQLEDGR TLSDYNIQKE STLHLVLRLR GGVEGYFQEL LGSVNPTQGR AR |
-Macromolecule #3: Protein fem-1 homolog C
Macromolecule | Name: Protein fem-1 homolog C / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 68.767312 KDa |
Recombinant expression | Organism: Escherichia coli BL21 (bacteria) |
Sequence | String: MDLKTAVFNA ARDGKLRLLT KLLASKSKEE VSSLISEKTN GATPLLMAAR YGHLDMVEFL LEQCSASIEV GGSVNFDGET IEGAPPLWA ASAAGHLKVV QSLLNHGASV NNTTLTNSTP LRAACFDGHL EIVKYLVEHK ADLEVSNRHG HTCLMISCYK G HKEIAQYL ...String: MDLKTAVFNA ARDGKLRLLT KLLASKSKEE VSSLISEKTN GATPLLMAAR YGHLDMVEFL LEQCSASIEV GGSVNFDGET IEGAPPLWA ASAAGHLKVV QSLLNHGASV NNTTLTNSTP LRAACFDGHL EIVKYLVEHK ADLEVSNRHG HTCLMISCYK G HKEIAQYL LEKGADVNRK SVKGNTALHD CAESGSLDIM KMLLMYCAKM EKDGYGMTPL LSASVTGHTN IVDFLTHHAQ TS KTERINA LELLGATFVD KKRDLLGALK YWKKAMNMRY SDRTNIISKP VPQTLIMAYD YAKEVNSAEE LEGLIADPDE MRM QALLIR ERILGPSHPD TSYYIRYRGA VYADSGNFKR CINLWKYALD MQQSNLDPLS PMTASSLLSF AELFSFMLQD RAKG LLGTT VTFDDLMGIL CKSVLEIERA IKQTQCPADP LQLNKALSII LHLICLLEKV PCTLEQDHFK KQTIYRFLKL HPRGK NNFS PLHLAVDKNT TCVGRYPVCK FPSLQVTAIL IECGADVNVR DSDDNSPLHI AALNNHPDIM NLLIKSGAHF DATNLH KQT ASDLLDEKEI AKNLIQPINH TTLQCLAARV IVNHRIYYKG HIPEKLETFV SLHR |
-Macromolecule #4: E3 ubiquitin-protein ligase RBX1
Macromolecule | Name: E3 ubiquitin-protein ligase RBX1 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: RING-type E3 ubiquitin transferase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 12.289977 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MAAAMDVDTP SGTNSGAGKK RFEVKKWNAV ALWAWDIVVD NCAICRNHIM DLCIECQANQ ASATSEECTV AWGVCNHAFH FHCISRWLK TRQVCPLDNR EWEFQKYGH |
-Macromolecule #5: Ubiquitin
Macromolecule | Name: Ubiquitin / 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: 77.120398 KDa |
Recombinant expression | Organism: Escherichia coli BL21 (bacteria) |
Sequence | String: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGCQL EDGRTLSDYN IQKESTLHLV LRLRGGMQIF VKTLTGKTI TLEVEPSDTI ENVKAKIQDK EGIPPDQQRL IFAGKQLEDG RTLSDYNIQK ESTLHLVLRL RGGMQIFVKT L TGKTITLE ...String: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGCQL EDGRTLSDYN IQKESTLHLV LRLRGGMQIF VKTLTGKTI TLEVEPSDTI ENVKAKIQDK EGIPPDQQRL IFAGKQLEDG RTLSDYNIQK ESTLHLVLRL RGGMQIFVKT L TGKTITLE VEPSDTIENV KAKIQDKEGI PPDQQRLIFA GKQLEDGRTL SDYNIQKEST LHLVLRLRGG MQIFVKTLTG KT ITLEVEP SDTIENVKAK IQDKEGIPPD QQRLIFAGKQ LEDGRTLSDY NIQKESTLHL VLRLRGGMQI FVKTLTGKTI TLE VEPSDT IENVKAKIQD KEGIPPDQQR LIFAGKQLED GRTLSDYNIQ KESTLHLVLR LRGGMQIFVK TLTGKTITLE VEPS DTIEN VKAKIQDKEG IPPDQQRLIF AGKQLEDGRT LSDYNIQKES TLHLVLRLRG GMQIFVKTLT GKTITLEVEP SDTIE NVKA KIQDKEGIPP DQQRLIFAGK QLEDGRTLSD YNIQKESTLH LVLRLRGGMQ IFVKTLTGKT ITLEVEPSDT IENVKA KIQ DKEGIPPDQQ RLIFAGKQLE DGRTLSDYNI QKESTLHLVL RLRGGMQIFV KTLTGKTITL EVEPSDTIEN VKAKIQD KE GIPPDQQRLI FAGKQLEDGR TLSDYNIQKE STLHLVLRLR GGV |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE-PROPANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.6 µm / Nominal defocus min: 0.6 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |