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Yorodumi- EMDB-13539: S. cerevisiae replisome-SCF(Dia2) complex bound to double-strande... -
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Basic information
| Entry | Database: EMDB / ID: EMD-13539 | ||||||||||||
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| Title | S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) | ||||||||||||
Map data | Composite cryo-EM density map for the budding yeast CMG-Csm3-Tof1-Mrc1-Ctf4-PolE-SCF(Dia2) complex on double-stranded DNA (conformation II), produced using the Phenix combine_focused_maps program | ||||||||||||
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Keywords | Genome stability / DNA replication / Ubiquitination / termination / replisome / cryo-EM / CMG / SCF(Dia2) / REPLICATION | ||||||||||||
| Function / homology | Function and homology informationRAVE complex / Iron uptake and transport / CBF3 complex / regulation of transcription by galactose / : / cellular response to methylmercury / establishment of sister chromatid cohesion / vacuolar proton-transporting V-type ATPase complex assembly / mitotic DNA replication termination / gene conversion ...RAVE complex / Iron uptake and transport / CBF3 complex / regulation of transcription by galactose / : / cellular response to methylmercury / establishment of sister chromatid cohesion / vacuolar proton-transporting V-type ATPase complex assembly / mitotic DNA replication termination / gene conversion / septin ring assembly / DNA-templated DNA replication maintenance of fidelity / maintenance of DNA repeat elements / Unwinding of DNA / invasive growth in response to glucose limitation / replication fork protection complex / replication fork arrest / DNA replication initiation / Cul8-RING ubiquitin ligase complex / meiotic chromosome segregation / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / GINS complex / MCM complex binding / mitotic DNA replication preinitiation complex assembly / protein-containing complex disassembly / nuclear DNA replication / premeiotic DNA replication / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / nucleotide-excision repair, DNA gap filling / regulation of exit from mitosis / SUMO binding / Activation of the pre-replicative complex / kinetochore assembly / mitotic DNA replication / DNA replication checkpoint signaling / establishment of mitotic sister chromatid cohesion / nuclear pre-replicative complex / CMG complex / DNA replication proofreading / : / DNA replication preinitiation complex / single-stranded DNA 3'-5' DNA exonuclease activity / Activation of ATR in response to replication stress / positive regulation of D-glucose transmembrane transport / mitotic DNA replication checkpoint signaling / vacuolar acidification / double-strand break repair via break-induced replication / exit from mitosis / MCM complex / mitotic DNA replication initiation / protein neddylation / mitochondrial fusion / mitotic intra-S DNA damage checkpoint signaling / silent mating-type cassette heterochromatin formation / single-stranded DNA helicase activity / regulation of DNA-templated DNA replication initiation / mitotic sister chromatid cohesion / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / SCF ubiquitin ligase complex / DNA strand elongation involved in DNA replication / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Orc1 removal from chromatin / leading strand elongation / nuclear chromosome / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / nuclear replication fork / regulation of DNA replication / Antigen processing: Ubiquitination & Proteasome degradation / replication fork processing / Dual incision in TC-NER / DNA replication origin binding / error-prone translesion synthesis / cullin family protein binding / DNA replication initiation / regulation of protein-containing complex assembly / subtelomeric heterochromatin formation / base-excision repair, gap-filling / negative regulation of cytoplasmic translation / endomembrane system / regulation of mitotic cell cycle / replication fork / DNA helicase activity / helicase activity / meiotic cell cycle / transcription elongation by RNA polymerase II / G1/S transition of mitotic cell cycle / base-excision repair / kinetochore / DNA-templated DNA replication / double-strand break repair via nonhomologous end joining / G2/M transition of mitotic cell cycle / peroxisome / double-strand break repair / mitotic cell cycle / heterochromatin formation Similarity search - Function | ||||||||||||
| Biological species | DNA molecule (others) / ![]() | ||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||
Authors | Jenkyn-Bedford M / Yeeles JTP | ||||||||||||
| Funding support | United Kingdom, 3 items
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Citation | Journal: Nature / Year: 2021Title: 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. | ||||||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_13539.map.gz | 168 MB | EMDB map data format | |
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| Header (meta data) | emd-13539-v30.xml emd-13539.xml | 50.4 KB 50.4 KB | Display Display | EMDB header |
| Images | emd_13539.png | 95.4 KB | ||
| Filedesc metadata | emd-13539.cif.gz | 16.2 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-13539 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-13539 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7pmnMC ![]() 7ploC ![]() 7pmkC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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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_13539.map.gz / Format: CCP4 / Size: 202.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Composite cryo-EM density map for the budding yeast CMG-Csm3-Tof1-Mrc1-Ctf4-PolE-SCF(Dia2) complex on double-stranded DNA (conformation II), produced using the Phenix combine_focused_maps program | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Budding yeast replisome on double-stranded DNA engaged with SCF(D...
+Supramolecule #1: Budding yeast replisome on double-stranded DNA engaged with SCF(D...
+Supramolecule #2: DNA
+Supramolecule #3: Replisome
+Macromolecule #1: DNA replication licensing factor MCM2
+Macromolecule #2: DNA replication licensing factor MCM3
+Macromolecule #3: DNA replication licensing factor MCM4
+Macromolecule #4: Minichromosome maintenance protein 5
+Macromolecule #5: DNA replication licensing factor MCM6
+Macromolecule #6: DNA replication licensing factor MCM7
+Macromolecule #7: DNA replication complex GINS protein PSF1
+Macromolecule #8: DNA replication complex GINS protein PSF2
+Macromolecule #9: DNA replication complex GINS protein PSF3
+Macromolecule #10: DNA replication complex GINS protein SLD5
+Macromolecule #11: Cell division control protein 45,Cell division control protein 45
+Macromolecule #12: DNA polymerase alpha-binding protein
+Macromolecule #15: Suppressor of kinetochore protein 1
+Macromolecule #16: Protein DIA2
+Macromolecule #17: DNA polymerase epsilon catalytic subunit A
+Macromolecule #18: DNA polymerase epsilon subunit B
+Macromolecule #19: Topoisomerase 1-associated factor 1
+Macromolecule #20: Chromosome segregation in meiosis protein 3
+Macromolecule #13: Leading strand template DNA
+Macromolecule #14: Lagging strand template DNA
+Macromolecule #21: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
+Macromolecule #22: MAGNESIUM ION
+Macromolecule #23: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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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 / Pretreatment - Time: 5 sec. / Details: 15 mA |
| Vitrification | Cryogen name: ETHANE / Details: Manual plunger. |
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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: 12730 / Average exposure time: 4.0 sec. / Average electron dose: 38.8 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: 2.2 µm / Nominal defocus min: 0.4 µm / Nominal magnification: 81000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Keywords
Authors
United Kingdom, 3 items
Citation
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