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Yorodumi- EMDB-13540: Cryo-EM reconstruction of the S. cerevisiae replisome-SCF(Dia2) c... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-13540 | ||||||||||||
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Title | Cryo-EM reconstruction of the S. cerevisiae replisome-SCF(Dia2) complex, in the absence of DNA - region encompassing MCM N-tier-Cdc45-GINS-Ctf4-Dia2 | ||||||||||||
Map data | Cryo-EM map (multi-body refinement) for the MCM N-tier-Cdc45-GINS-Ctf4-Dia2 region of the budding yeast replisome-SCF(Dia2) complex in the absence of DNA | ||||||||||||
Sample |
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Function / homology | Function and homology information cellular response to bleomycin / DNA secondary structure binding / detection of abiotic stimulus / replication fork arrest / regulation of nuclear cell cycle DNA replication / Switching of origins to a post-replicative state / Unwinding of DNA / cellular response to cisplatin / cell cycle phase transition / DNA replication initiation ...cellular response to bleomycin / DNA secondary structure binding / detection of abiotic stimulus / replication fork arrest / regulation of nuclear cell cycle DNA replication / Switching of origins to a post-replicative state / Unwinding of DNA / cellular response to cisplatin / cell cycle phase transition / DNA replication initiation / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / GINS complex / mitotic DNA replication preinitiation complex assembly / nuclear origin of replication recognition complex / cellular response to hydroxyurea / nucleotide-excision repair, DNA gap filling / anaphase-promoting complex binding / mitotic DNA replication / alpha DNA polymerase:primase complex / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / DNA replication proofreading / CMG complex / DNA replication checkpoint signaling / cellular response to chemical stress / single-stranded DNA 3'-5' DNA exonuclease activity / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / DNA replication preinitiation complex / target-directed miRNA degradation / MCM complex / replication fork protection complex / elongin complex / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / regulation of phosphorylation / VCB complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / positive regulation of protein autoubiquitination / protein neddylation / mitotic DNA replication initiation / regulation of DNA-templated DNA replication initiation / mitotic intra-S DNA damage checkpoint signaling / NEDD8 ligase activity / DNA strand elongation involved in DNA replication / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / positive regulation of double-strand break repair / ubiquitin-ubiquitin ligase activity / inner cell mass cell proliferation / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / ubiquitin ligase complex scaffold activity / Cul3-RING ubiquitin ligase complex / activation of protein kinase activity / branching morphogenesis of an epithelial tube / DNA synthesis involved in DNA repair / cochlea development / leading strand elongation / DNA unwinding involved in DNA replication / G1/S-Specific Transcription / Apoptotic cleavage of cellular proteins / Prolactin receptor signaling / replication fork processing / nuclear replication fork / mitotic G2 DNA damage checkpoint signaling / DNA replication origin binding / protein monoubiquitination / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / cullin family protein binding / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / DNA replication initiation / PCNA-Dependent Long Patch Base Excision Repair / Activation of the pre-replicative complex / Tat-mediated elongation of the HIV-1 transcript / error-prone translesion synthesis / embryonic organ development / Formation of HIV-1 elongation complex containing HIV-1 Tat / positive regulation of double-strand break repair via homologous recombination / Formation of HIV elongation complex in the absence of HIV Tat / cellular response to interleukin-4 / protein K48-linked ubiquitination / Activation of ATR in response to replication stress / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / Formation of RNA Pol II elongation complex / response to UV / base-excision repair, gap-filling / RNA Polymerase II Pre-transcription Events / DNA helicase activity / positive regulation of TORC1 signaling Similarity search - Function | ||||||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||||||||
Authors | Jenkyn-Bedford M / Yeeles JTP / Deegan TD | ||||||||||||
Funding support | United Kingdom, 3 items
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Citation | Journal: Nature / Year: 2021 Title: A conserved mechanism for regulating replisome disassembly in eukaryotes. Authors: Michael Jenkyn-Bedford / Morgan L Jones / Yasemin Baris / Karim P M Labib / Giuseppe Cannone / Joseph T P Yeeles / Tom D Deegan / Abstract: Replisome disassembly is the final step of eukaryotic DNA replication and is triggered by ubiquitylation of the CDC45-MCM-GINS (CMG) replicative helicase. Despite being driven by evolutionarily ...Replisome disassembly is the final step of eukaryotic DNA replication and is triggered by ubiquitylation of the CDC45-MCM-GINS (CMG) replicative helicase. Despite being driven by evolutionarily diverse E3 ubiquitin ligases in different eukaryotes (SCF in budding yeast, CUL2 in metazoa), replisome disassembly is governed by a common regulatory principle, in which ubiquitylation of CMG is suppressed before replication termination, to prevent replication fork collapse. Recent evidence suggests that this suppression is mediated by replication fork DNA. However, it is unknown how SCF and CUL2 discriminate terminated from elongating replisomes, to selectively ubiquitylate CMG only after termination. Here we used cryo-electron microscopy to solve high-resolution structures of budding yeast and human replisome-E3 ligase assemblies. Our structures show that the leucine-rich repeat domains of Dia2 and LRR1 are structurally distinct, but bind to a common site on CMG, including the MCM3 and MCM5 zinc-finger domains. The LRR-MCM interaction is essential for replisome disassembly and, crucially, is occluded by the excluded DNA strand at replication forks, establishing the structural basis for the suppression of CMG ubiquitylation before termination. Our results elucidate a conserved mechanism for the regulation of replisome disassembly in eukaryotes, and reveal a previously unanticipated role for DNA in preserving replisome integrity. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_13540.map.gz | 25.3 MB | EMDB map data format | |
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Header (meta data) | emd-13540-v30.xml emd-13540.xml | 14.3 KB 14.3 KB | Display Display | EMDB header |
Images | emd_13540.png | 92 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-13540 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-13540 | HTTPS FTP |
-Validation report
Summary document | emd_13540_validation.pdf.gz | 307.7 KB | Display | EMDB validaton report |
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Full document | emd_13540_full_validation.pdf.gz | 307.2 KB | Display | |
Data in XML | emd_13540_validation.xml.gz | 7.4 KB | Display | |
Data in CIF | emd_13540_validation.cif.gz | 8.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-13540 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-13540 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_13540.map.gz / Format: CCP4 / Size: 361.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Cryo-EM map (multi-body refinement) for the MCM N-tier-Cdc45-GINS-Ctf4-Dia2 region of the budding yeast replisome-SCF(Dia2) complex in the absence of DNA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.838 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Budding yeast replisome engaged with SCF(Dia2) in the absence of DNA
Entire | Name: Budding yeast replisome engaged with SCF(Dia2) in the absence of DNA |
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Components |
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-Supramolecule #1: Budding yeast replisome engaged with SCF(Dia2) in the absence of DNA
Supramolecule | Name: Budding yeast replisome engaged with SCF(Dia2) in the absence of DNA type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#22 Details: Complex reconstituted in vitro from purified proteins |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Recombinant expression | Organism: Saccharomyces cerevisiae (brewer's yeast) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.6 |
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Grid | Model: Quantifoil R2/2 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE / Details: 15 mA |
Vitrification | Cryogen name: ETHANE / Details: Manual plunger. |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Digitization - Sampling interval: 0.87 µm / Number real images: 3096 / Average exposure time: 25.5 sec. / Average electron dose: 32.5 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: 2.5 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 96000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |