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- PDB-8p62: S. cerevisiae ssDNA-sCMGE after DNA replication initiation -

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Basic information

Entry
Database: PDB / ID: 8p62
TitleS. cerevisiae ssDNA-sCMGE after DNA replication initiation
Components
  • (DNA polymerase epsilon ...) x 2
  • (DNA replication complex GINS protein ...) x 4
  • (DNA replication licensing factor ...) x 5
  • Cell division control protein 45
  • DNA (9-MER)
  • Minichromosome maintenance protein 5
KeywordsREPLICATION / Saccharomyces cerevisiae / helicase / CMGE / initiation of DNA replication / DNA / DNA unwinding
Function / homology
Function and homology information


DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / DNA replication initiation / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / MCM complex binding ...DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / DNA replication initiation / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / epsilon DNA polymerase complex / DNA strand elongation involved in mitotic DNA replication / MCM complex binding / GINS complex / nuclear DNA replication / mitotic DNA replication preinitiation complex assembly / 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 proofreading / CMG complex / nuclear pre-replicative complex / single-stranded DNA 3'-5' DNA exonuclease activity / Activation of ATR in response to replication stress / DNA replication preinitiation complex / MCM complex / Termination of translesion DNA synthesis / mitotic DNA replication checkpoint signaling / replication fork protection complex / double-strand break repair via break-induced replication / mitotic DNA replication initiation / single-stranded DNA helicase activity / mitotic intra-S DNA damage checkpoint signaling / silent mating-type cassette heterochromatin formation / regulation of DNA-templated DNA replication initiation / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / DNA strand elongation involved in DNA replication / mitotic sister chromatid cohesion / leading strand elongation / DNA unwinding involved in DNA replication / nuclear replication fork / DNA replication origin binding / Dual incision in TC-NER / DNA replication initiation / subtelomeric heterochromatin formation / error-prone translesion synthesis / base-excision repair, gap-filling / DNA helicase activity / replication fork / helicase activity / transcription elongation by RNA polymerase II / base-excision repair / heterochromatin formation / DNA-templated DNA replication / double-strand break repair via nonhomologous end joining / double-strand break repair / single-stranded DNA binding / mitotic cell cycle / 4 iron, 4 sulfur cluster binding / double-stranded DNA binding / DNA helicase / DNA-directed DNA polymerase / chromosome, telomeric region / DNA-directed DNA polymerase activity / mRNA binding / nucleotide binding / DNA damage response / chromatin binding / ATP hydrolysis activity / DNA binding / zinc ion binding / nucleoplasm / ATP binding / nucleus / metal ion binding / cytoplasm
Similarity search - Function
DNA polymerase epsilon, subunit B / DNA polymerase epsilon catalytic subunit A, thumb domain / Zinc finger domain of DNA polymerase-epsilon / DNA polymerase epsilon, catalytic subunit A, C-terminal / DNA polymerase epsilon catalytic subunit / Domain of unknown function (DUF1744) / DUF1744 / : / MCM3 winged helix domain / GINS/PriA/YqbF domain ...DNA polymerase epsilon, subunit B / DNA polymerase epsilon catalytic subunit A, thumb domain / Zinc finger domain of DNA polymerase-epsilon / DNA polymerase epsilon, catalytic subunit A, C-terminal / DNA polymerase epsilon catalytic subunit / Domain of unknown function (DUF1744) / DUF1744 / : / MCM3 winged helix domain / GINS/PriA/YqbF domain / CDC45 family / DNA replication complex GINS protein Psf2 / CDC45-like protein / GINS complex, subunit Psf1 / GINS complex, subunit Psf3 / GINS complex, subunit Psf3 superfamily / DNA replication complex GINS protein SLD5, C-terminal / GINS, helical bundle-like domain superfamily / GINS complex protein Sld5, alpha-helical domain / DNA replication complex GINS protein SLD5 C-terminus / GINS complex subunit Sld5 / GINS subunit, domain A / GINS complex protein helical bundle domain / MCM4, winged helix domain / DNA polymerase alpha/delta/epsilon, subunit B / DNA polymerase alpha/epsilon subunit B / : / MCM5, C-terminal domain / DNA replication licensing factor Mcm5 / DNA replication licensing factor Mcm3 / Mini-chromosome maintenance complex protein 4 / DNA replication licensing factor Mcm6 / DNA replication licensing factor Mcm7 / Mcm6, C-terminal winged-helix domain / MCM6 C-terminal winged-helix domain / DNA replication licensing factor Mcm2 / Mini-chromosome maintenance protein 2 / Mini-chromosome maintenance, conserved site / MCM family signature. / MCM N-terminal domain / MCM N-terminal domain / MCM OB domain / MCM OB domain / Mini-chromosome maintenance protein / MCM, AAA-lid domain / MCM P-loop domain / MCM AAA-lid domain / MCM family domain profile. / minichromosome maintenance proteins / MCM domain / DNA polymerase family B, thumb domain / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / Winged helix-like DNA-binding domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Nucleic acid-binding, OB-fold / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / DNA / DNA polymerase epsilon catalytic subunit A / DNA replication licensing factor MCM3 / DNA polymerase epsilon subunit B / DNA replication licensing factor MCM2 / Minichromosome maintenance protein 5 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM7 ...ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / DNA / DNA polymerase epsilon catalytic subunit A / DNA replication licensing factor MCM3 / DNA polymerase epsilon subunit B / DNA replication licensing factor MCM2 / Minichromosome maintenance protein 5 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM7 / DNA replication complex GINS protein PSF2 / DNA replication licensing factor MCM6 / DNA replication complex GINS protein SLD5 / Cell division control protein 45 / DNA replication complex GINS protein PSF3 / DNA replication complex GINS protein PSF1
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsHenrikus, S.S. / Willhoft, O.
Funding support United Kingdom, European Union, France, 4items
OrganizationGrant numberCountry
The Francis Crick InstituteFC001065 and FC001066 United Kingdom
European Research Council (ERC)grant agreement no. 820102European Union
Human Frontier Science Program (HFSP)LT000834/2020-L France
European Molecular Biology Organization (EMBO)ALTF 962-2019European Union
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: Unwinding of a eukaryotic origin of replication visualized by cryo-EM.
Authors: Sarah S Henrikus / Marta H Gross / Oliver Willhoft / Thomas Pühringer / Jacob S Lewis / Allison W McClure / Julia F Greiwe / Giacomo Palm / Andrea Nans / John F X Diffley / Alessandro Costa /
Abstract: To prevent detrimental chromosome re-replication, DNA loading of a double hexamer of the minichromosome maintenance (MCM) replicative helicase is temporally separated from DNA unwinding. Upon S-phase ...To prevent detrimental chromosome re-replication, DNA loading of a double hexamer of the minichromosome maintenance (MCM) replicative helicase is temporally separated from DNA unwinding. Upon S-phase transition in yeast, DNA unwinding is achieved in two steps: limited opening of the double helix and topological separation of the two DNA strands. First, Cdc45, GINS and Polε engage MCM to assemble a double CMGE with two partially separated hexamers that nucleate DNA melting. In the second step, triggered by Mcm10, two CMGEs separate completely, eject the lagging-strand template and cross paths. To understand Mcm10 during helicase activation, we used biochemical reconstitution with cryogenic electron microscopy. We found that Mcm10 splits the double CMGE by engaging the N-terminal homo-dimerization face of MCM. To eject the lagging strand, DNA unwinding is started from the N-terminal side of MCM while the hexamer channel becomes too narrow to harbor duplex DNA.
History
DepositionMay 25, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0May 29, 2024Provider: repository / Type: Initial release
Revision 1.1Aug 28, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
2: DNA replication licensing factor MCM2
3: DNA replication licensing factor MCM3
4: DNA replication licensing factor MCM4
5: Minichromosome maintenance protein 5
6: DNA replication licensing factor MCM6
7: DNA replication licensing factor MCM7
A: DNA (9-MER)
C: DNA replication complex GINS protein PSF3
D: DNA replication complex GINS protein SLD5
E: Cell division control protein 45
F: DNA polymerase epsilon subunit B
G: DNA polymerase epsilon catalytic subunit A
H: DNA replication complex GINS protein PSF1
I: DNA replication complex GINS protein PSF2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,135,22630
Polymers1,131,81214
Non-polymers3,41416
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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DNA replication licensing factor ... , 5 types, 5 molecules 23467

#1: Protein DNA replication licensing factor MCM2 / Minichromosome maintenance protein 2


Mass: 98911.539 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM2, YBL023C, YBL0438 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P29469, DNA helicase
#2: Protein DNA replication licensing factor MCM3 / Minichromosome maintenance protein 3


Mass: 111720.242 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM3, YEL032W, SYGP-ORF23 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P24279, DNA helicase
#3: Protein DNA replication licensing factor MCM4 / Cell division control protein 54


Mass: 105138.375 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM4, CDC54, HCD21, YPR019W, YP9531.13 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P30665, DNA helicase
#5: Protein DNA replication licensing factor MCM6 / Minichromosome maintenance protein 6


Mass: 113110.211 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM6, YGL201C / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P53091, DNA helicase
#6: Protein DNA replication licensing factor MCM7 / Cell division control protein 47 / Minichromosome maintenance protein 7


Mass: 95049.875 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM7, CDC47, YBR202W, YBR1441 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P38132, DNA helicase

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Protein , 2 types, 2 molecules 5E

#4: Protein Minichromosome maintenance protein 5 / Cell division control protein 46


Mass: 86505.734 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MCM5, CDC46, YLR274W, L9328.1 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P29496, DNA helicase
#10: Protein Cell division control protein 45


Mass: 75154.703 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: CDC45, SLD4, YLR103C, L8004.11 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q08032

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DNA chain , 1 types, 1 molecules A

#7: DNA chain DNA (9-MER)


Mass: 2773.904 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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DNA replication complex GINS protein ... , 4 types, 4 molecules CDHI

#8: Protein DNA replication complex GINS protein PSF3 / Partner of Sld five 3


Mass: 25718.070 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: PSF3, YOL146W / Production host: Escherichia coli (E. coli) / References: UniProt: Q12146
#9: Protein DNA replication complex GINS protein SLD5


Mass: 33983.617 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: SLD5, YDR489W / Production host: Escherichia coli (E. coli) / References: UniProt: Q03406
#13: Protein DNA replication complex GINS protein PSF1 / Partner of Sld five 1


Mass: 24230.576 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: PSF1, YDR013W, PZA208, YD8119.18 / Production host: Escherichia coli (E. coli) / References: UniProt: Q12488
#14: Protein DNA replication complex GINS protein PSF2 / Partner of Sld five 2


Mass: 25096.807 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: PSF2, YJL072C, HRF213, J1086 / Production host: Escherichia coli (E. coli) / References: UniProt: P40359

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DNA polymerase epsilon ... , 2 types, 2 molecules FG

#11: Protein DNA polymerase epsilon subunit B / DNA polymerase II subunit 2


Mass: 78425.852 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: DPB2, YPR175W, P9705.7 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P24482
#12: Protein DNA polymerase epsilon catalytic subunit A / 3'-5' exodeoxyribonuclease / DNA polymerase II subunit A


Mass: 255992.484 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: POL2, DUN2, YNL262W, N0825 / Production host: Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: P21951, DNA-directed DNA polymerase, Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters

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Non-polymers , 4 types, 16 molecules

#15: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM
#16: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#17: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#18: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsilon (subunit A and B), 9-mer DNA moleculeCOMPLEX#1-#140MULTIPLE SOURCES
2DNA replication licensing factors MCM2-7COMPLEX#1-#61RECOMBINANT
3DNA (9-MER)COMPLEX#71RECOMBINANT
4DNA replication complex GINS containing Psf1, Psf2, Psf3 and Sld5COMPLEX#8-#9, #13-#141RECOMBINANT
5Cell division control protein 45, and DNA polymerase epsilon subunit A and BCOMPLEX#10-#121RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
32Saccharomyces cerevisiae (brewer's yeast)4932
43synthetic construct (others)32630
54Saccharomyces cerevisiae (brewer's yeast)4932
65Saccharomyces cerevisiae (brewer's yeast)4932
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
42Saccharomyces cerevisiae (brewer's yeast)4932
53synthetic construct (others)32630
74Escherichia coli (E. coli)562
85Saccharomyces cerevisiae (brewer's yeast)4932
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3300 nm / Nominal defocus min: 1800 nm
Image recordingElectron dose: 1.67 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
7Cootv0.9model fitting
9PHENIX1.20.1model refinement
10RELION3.1initial Euler assignment
11RELION3.1final Euler assignment
13RELION3.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 87445 / Symmetry type: POINT

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