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- PDB-7pmk: S. cerevisiae replisome-SCF(Dia2) complex bound to double-strande... -
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Basic information
Entry | Database: PDB / ID: 7pmk | ||||||||||||
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Title | S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation I) | ||||||||||||
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![]() | REPLICATION / Genome stability / DNA replication / Ubiquitination / termination / replisome / cryo-EM / CMG / SCF(Dia2) | ||||||||||||
Function / homology | ![]() : / cell cycle / mitotic DNA replication termination / DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / maintenance of DNA repeat elements / invasive growth in response to glucose limitation / DNA replication initiation / replication fork arrest ...: / cell cycle / mitotic DNA replication termination / DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / maintenance of DNA repeat elements / invasive growth in response to glucose limitation / DNA replication initiation / replication fork arrest / meiotic chromosome segregation / protein-containing complex disassembly / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / GINS complex / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / MCM complex binding / mitotic DNA replication preinitiation complex assembly / nuclear DNA replication / premeiotic DNA replication / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / SUMO binding / nucleotide-excision repair, DNA gap filling / mitotic DNA replication / Activation of the pre-replicative complex / DNA replication checkpoint signaling / CMG complex / establishment of mitotic sister chromatid cohesion / nuclear pre-replicative complex / DNA replication proofreading / Termination of translesion DNA synthesis / Activation of ATR in response to replication stress / DNA replication preinitiation complex / single-stranded DNA 3'-5' DNA exonuclease activity / MCM complex / replication fork protection complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / single-stranded DNA helicase activity / mitotic DNA replication initiation / mitotic intra-S DNA damage checkpoint signaling / silent mating-type cassette heterochromatin formation / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / SCF ubiquitin ligase complex / 3'-5' DNA helicase activity / mitotic sister chromatid cohesion / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / DNA strand elongation involved in DNA replication / leading strand elongation / replication fork processing / nuclear replication fork / regulation of DNA replication / cullin family protein binding / DNA replication origin binding / Dual incision in TC-NER / DNA replication initiation / error-prone translesion synthesis / subtelomeric heterochromatin formation / DNA helicase activity / base-excision repair, gap-filling / replication fork / meiotic cell cycle / helicase activity / base-excision repair / double-strand break repair via nonhomologous end joining / DNA-templated DNA replication / double-strand break repair / mitotic cell cycle / single-stranded DNA binding / 4 iron, 4 sulfur cluster binding / ubiquitin-dependent protein catabolic process / double-stranded DNA binding / DNA helicase / DNA-directed DNA polymerase / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / DNA-directed DNA polymerase activity / chromosome, telomeric region / DNA replication / hydrolase activity / protein ubiquitination / DNA repair / nucleotide binding / mRNA binding / chromatin binding / ATP hydrolysis activity / DNA binding / zinc ion binding / nucleoplasm / ATP binding / metal ion binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() Synthetic construct (others) | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||
![]() | Jenkyn-Bedford, M. / Yeeles, J.T.P. / Deegan, T.D. | ||||||||||||
Funding support | ![]()
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![]() | ![]() 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
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Structure viewer | Molecule: ![]() ![]() |
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Download
PDBx/mmCIF format | ![]() | 1.7 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 13537MC ![]() 7ploC ![]() 7pmnC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-DNA replication licensing factor ... , 5 types, 5 molecules 23467
#1: Protein | Mass: 98911.539 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS187, PACBIOSEQ_LOCUS193, PACBIOSEQ_LOCUS195, PACBIOSEQ_LOCUS196, SCNYR20_0007007400, SCP684_0007007100 Production host: ![]() ![]() |
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#2: Protein | Mass: 111987.562 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: MCM3, YEL032W, SYGP-ORF23 / Production host: ![]() ![]() |
#3: Protein | Mass: 105138.375 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: MCM4, CDC54, HCD21, YPR019W, YP9531.13 / Production host: ![]() ![]() |
#5: Protein | Mass: 113110.211 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: MCM6, YGL201C / Production host: ![]() ![]() |
#6: Protein | Mass: 95049.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: MCM7, PACBIOSEQ_LOCUS429 / Production host: ![]() ![]() |
-Protein , 7 types, 9 molecules 5EFGHKLXY
#4: Protein | Mass: 86505.734 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS4054, PACBIOSEQ_LOCUS4112, PACBIOSEQ_LOCUS4129, PACBIOSEQ_LOCUS4153, PACBIOSEQ_LOCUS4202, SCNYR20_0004029000, SCP684_0004028600 Production host: ![]() ![]() | ||||||||
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#11: Protein | Mass: 75154.703 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: CDC45, SLD4, YLR103C, L8004.11 / Production host: ![]() ![]() | ||||||||
#12: Protein | Mass: 108610.148 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: SCNYR20_0005036600 / Production host: ![]() ![]() #15: Protein | | Mass: 22357.270 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS1258, PACBIOSEQ_LOCUS1259, PACBIOSEQ_LOCUS1261, PACBIOSEQ_LOCUS1263, PACBIOSEQ_LOCUS1270, PACBIOSEQ_LOCUS1277, PACBIOSEQ_LOCUS1282, SCNYR20_0001050400, SCP684_0001049800 Production host: ![]() ![]() #16: Protein | | Mass: 85368.844 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: DIA2, YOR080W, YOR29-31 / Production host: ![]() ![]() #19: Protein | | Mass: 141296.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: TOF1, YNL273W, N0636 / Production host: ![]() ![]() #20: Protein | | Mass: 36588.758 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: CSM3, YMR048W, YM9796.01 / Production host: ![]() ![]() |
-DNA replication complex GINS protein ... , 4 types, 4 molecules ABCD
#7: Protein | Mass: 24230.576 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS944, PACBIOSEQ_LOCUS956, PACBIOSEQ_LOCUS958, SCNYR20_0001022500, SCP684_0001022000 Production host: ![]() ![]() |
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#8: Protein | Mass: 25096.807 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS3163, PACBIOSEQ_LOCUS3191, PACBIOSEQ_LOCUS3224, PACBIOSEQ_LOCUS3231, PACBIOSEQ_LOCUS3255, SCNYR20_0009012300, SCP684_0009011800 Production host: ![]() ![]() |
#9: Protein | Mass: 22004.160 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: PACBIOSEQ_LOCUS5150, PACBIOSEQ_LOCUS5239, PACBIOSEQ_LOCUS5244, PACBIOSEQ_LOCUS5270, PACBIOSEQ_LOCUS5331 Production host: ![]() ![]() |
#10: Protein | Mass: 33983.617 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: SLD5, YDR489W / Production host: ![]() ![]() |
-DNA chain , 2 types, 2 molecules IJ
#13: DNA chain | Mass: 37688.645 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others) |
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#14: DNA chain | Mass: 35259.238 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others) |
-DNA polymerase epsilon ... , 2 types, 2 molecules QR
#17: Protein | Mass: 255890.422 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: POL2, DUN2, YNL262W, N0825 / Production host: ![]() ![]() References: UniProt: P21951, DNA-directed DNA polymerase, Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters |
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#18: Protein | Mass: 78425.852 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: DPB2, YPR175W, P9705.7 / Production host: ![]() ![]() |
-Non-polymers , 3 types, 13 molecules 




#21: Chemical | #22: Chemical | #23: Chemical | ChemComp-ZN / |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.6 | ||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
Specimen support | Details: 15 mA / Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R2/2 | ||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Details: Manual plunger |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 400 nm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 4 sec. / Electron dose: 38.8 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 12730 |
EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2160000 | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 369254 Details: Composite map produced from individual cryo-EM density maps (resolutions 3.2 - 4.0 A) using Phenix combine_focused_maps. See publication for details. Symmetry type: POINT |