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Open data
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Basic information
Entry | Database: PDB / ID: 7pfo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | Core human replisome | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | REPLICATION / DNA replication / helicase / CMG / TIMELESS / TIPIN / CLASPIN / AND-1 / EPSILON / POLYMERASE / REPLISOME | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() cellular response to bleomycin / DNA secondary structure binding / detection of abiotic stimulus / regulation of nuclear cell cycle DNA replication / replication fork arrest / Switching of origins to a post-replicative state / cell cycle phase transition / Unwinding of DNA / DNA replication initiation / epsilon DNA polymerase complex ...cellular response to bleomycin / DNA secondary structure binding / detection of abiotic stimulus / regulation of nuclear cell cycle DNA replication / replication fork arrest / Switching of origins to a post-replicative state / cell cycle phase transition / Unwinding of DNA / DNA replication initiation / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / GINS complex / mitotic DNA replication preinitiation complex assembly / activation of protein kinase activity / cellular response to cisplatin / cellular response to hydroxyurea / replication fork protection complex / nuclear origin of replication recognition complex / anaphase-promoting complex binding / Regulation of MITF-M-dependent genes involved in DNA replication, damage repair and senescence / alpha DNA polymerase:primase complex / nucleotide-excision repair, DNA gap filling / mitotic DNA replication / regulation of phosphorylation / DNA replication checkpoint signaling / CMG complex / DNA replication proofreading / DNA replication preinitiation complex / single-stranded DNA 3'-5' DNA exonuclease activity / MCM complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / mitotic DNA replication initiation / mitotic intra-S DNA damage checkpoint signaling / regulation of DNA-templated DNA replication initiation / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / inner cell mass cell proliferation / positive regulation of double-strand break repair / DNA strand elongation involved in DNA replication / DNA synthesis involved in DNA repair / Apoptotic cleavage of cellular proteins / branching morphogenesis of an epithelial tube / leading strand elongation / G1/S-Specific Transcription / mitotic G2 DNA damage checkpoint signaling / replication fork processing / nuclear replication fork / DNA replication origin binding / cochlea development / PCNA-Dependent Long Patch Base Excision Repair / Activation of the pre-replicative complex / DNA replication initiation / embryonic organ development / error-prone translesion synthesis / positive regulation of double-strand break repair via homologous recombination / Activation of ATR in response to replication stress / response to UV / base-excision repair, gap-filling / Gap-filling DNA repair synthesis and ligation in GG-NER / cellular response to interleukin-4 / DNA helicase activity / lung development / cellular response to epidermal growth factor stimulus / Assembly of the pre-replicative complex / DNA damage checkpoint signaling / Termination of translesion DNA synthesis / Recognition of DNA damage by PCNA-containing replication complex / morphogenesis of an epithelium / enzyme activator activity / HDR through Homologous Recombination (HRR) / Dual Incision in GG-NER / helicase activity / G1/S transition of mitotic cell cycle / regulation of circadian rhythm / circadian rhythm / peptidyl-serine phosphorylation / Orc1 removal from chromatin / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA-templated DNA replication / multicellular organism growth / cellular response to xenobiotic stimulus / cellular senescence / site of double-strand break / mitotic cell cycle / nucleosome assembly / single-stranded DNA binding / Processing of DNA double-strand break ends / 4 iron, 4 sulfur cluster binding / histone binding / DNA helicase / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / chromosome, telomeric region / DNA replication / cell population proliferation / Ub-specific processing proteases / nuclear body / cilium / ciliary basal body Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Jones, M.J. / Yeeles, J.T.P. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of a human replisome shows the organisation and interactions of a DNA replication machine. Authors: Morgan L Jones / Yasemin Baris / Martin R G Taylor / Joseph T P Yeeles / ![]() Abstract: The human replisome is an elaborate arrangement of molecular machines responsible for accurate chromosome replication. At its heart is the CDC45-MCM-GINS (CMG) helicase, which, in addition to ...The human replisome is an elaborate arrangement of molecular machines responsible for accurate chromosome replication. At its heart is the CDC45-MCM-GINS (CMG) helicase, which, in addition to unwinding the parental DNA duplex, arranges many proteins including the leading-strand polymerase Pol ε, together with TIMELESS-TIPIN, CLASPIN and AND-1 that have key and varied roles in maintaining smooth replisome progression. How these proteins are coordinated in the human replisome is poorly understood. We have determined a 3.2 Å cryo-EM structure of a human replisome comprising CMG, Pol ε, TIMELESS-TIPIN, CLASPIN and AND-1 bound to replication fork DNA. The structure permits a detailed understanding of how AND-1, TIMELESS-TIPIN and Pol ε engage CMG, reveals how CLASPIN binds to multiple replisome components and identifies the position of the Pol ε catalytic domain. Furthermore, the intricate network of contacts contributed by MCM subunits and TIMELESS-TIPIN with replication fork DNA suggests a mechanism for strand separation. #1: ![]() 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 |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 2.9 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 196.1 KB | Display | |
Data in CIF | ![]() | 323.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 13375MC 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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1 |
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Components
-DNA replication licensing factor ... , 6 types, 6 molecules 234567
#1: Protein | Mass: 102034.102 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 91110.852 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#3: Protein | Mass: 96684.852 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#4: Protein | Mass: 82406.633 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#5: Protein | Mass: 93010.273 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#6: Protein | Mass: 81411.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-DNA polymerase epsilon ... , 2 types, 2 molecules AB
#7: Protein | Mass: 59600.887 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#8: Protein | Mass: 261855.266 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q07864, DNA-directed DNA polymerase, Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters |
-Protein , 5 types, 7 molecules CHIJKLQ
#9: Protein | Mass: 66016.891 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||
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#14: Protein | Mass: 130098.148 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #15: Protein | | Mass: 138903.031 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #16: Protein | | Mass: 34600.223 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #19: Protein | | Mass: 155184.703 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-DNA replication complex GINS protein ... , 4 types, 4 molecules DEFG
#10: Protein | Mass: 23022.469 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#11: Protein | Mass: 21453.713 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#12: Protein | Mass: 24562.611 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#13: Protein | Mass: 30114.236 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-DNA chain , 2 types, 2 molecules MN
#17: DNA chain | Mass: 26396.836 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
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#18: DNA chain | Mass: 16407.533 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Non-polymers , 4 types, 12 molecules 






#20: Chemical | ChemComp-ZN / #21: Chemical | #22: Chemical | #23: Chemical | ChemComp-SO4 / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | N |
-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
Component | Name: Core human replisome / Type: COMPLEX Entity ID: #8, #7, #3, #5-#6, #2, #1, #4, #10-#13, #9, #15-#17, #14, #18-#19 Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R2/2 |
Vitrification | Cryogen name: ETHANE |
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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 defocus max: 3500 nm / Nominal defocus min: 1500 nm / Cs: 0.1 mm |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 39.8 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
Image scans | Movie frames/image: 40 |
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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: 490000 | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 110000 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||
Atomic model building | Space: REAL | ||||||||||||||||||||||||||||
Refine LS restraints |
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