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- PDB-6ptj: Structure of Ctf4 trimer in complex with one CMG helicase -

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Basic information

Entry
Database: PDB / ID: 6ptj
TitleStructure of Ctf4 trimer in complex with one CMG helicase
Components
  • (DNA replication complex GINS protein ...) x 4
  • (DNA replication licensing factor ...) x 5
  • Cell division control protein 45
  • DNA polymerase alpha-binding protein
  • Minichromosome maintenance protein 5
KeywordsREPLICATION / Replication factory / sister replication forks / Ctf4/AND1 / DNA replication / CMG helicase
Function / homology
Function and homology information


establishment of sister chromatid cohesion / Unwinding of DNA / Cul8-RING ubiquitin ligase 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 / nuclear DNA replication / MCM complex binding / GINS complex ...establishment of sister chromatid cohesion / Unwinding of DNA / Cul8-RING ubiquitin ligase 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 / nuclear DNA replication / MCM complex binding / GINS complex / mitotic DNA replication preinitiation complex assembly / premeiotic DNA replication / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / mitotic DNA replication / Activation of the pre-replicative complex / CMG complex / nuclear pre-replicative complex / Activation of ATR in response to replication stress / MCM complex / DNA replication preinitiation complex / double-strand break repair via break-induced replication / single-stranded DNA helicase activity / replication fork protection complex / mitotic DNA replication initiation / silent mating-type cassette heterochromatin formation / regulation of DNA-templated DNA replication initiation / DNA strand elongation involved in DNA replication / mitotic sister chromatid cohesion / nuclear chromosome / DNA unwinding involved in DNA replication / nuclear replication fork / DNA replication origin binding / subtelomeric heterochromatin formation / DNA replication initiation / heterochromatin formation / DNA helicase activity / helicase activity / DNA-templated DNA replication / nucleosome assembly / single-stranded DNA binding / mitotic cell cycle / DNA helicase / chromosome, telomeric region / DNA repair / DNA damage response / chromatin binding / ATP hydrolysis activity / nucleoplasm / ATP binding / identical protein binding / metal ion binding / nucleus / cytoplasm
Similarity search - Function
Methane Monooxygenase Hydroxylase; Chain G, domain 1 - #2050 / mini-chromosome maintenance (MCM) complex, chain A, domain 1 / mini-chromosome maintenance (MCM) complex, chain A, domain 1 / : / DNA polymerase alpha-binding protein Ctf4, C-terminal domain / Minichromosome loss protein Mcl1, middle region / Minichromosome loss protein, Mcl1, middle region / CDC45 family / CDC45-like protein / DNA replication complex GINS protein Psf2 ...Methane Monooxygenase Hydroxylase; Chain G, domain 1 - #2050 / mini-chromosome maintenance (MCM) complex, chain A, domain 1 / mini-chromosome maintenance (MCM) complex, chain A, domain 1 / : / DNA polymerase alpha-binding protein Ctf4, C-terminal domain / Minichromosome loss protein Mcl1, middle region / Minichromosome loss protein, Mcl1, middle region / CDC45 family / CDC45-like protein / DNA replication complex GINS protein Psf2 / 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 / MCM4, winged helix 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 / Nucleic acid-binding proteins / Methane Monooxygenase Hydroxylase; Chain G, domain 1 / OB fold (Dihydrolipoamide Acetyltransferase, E2P) / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Winged helix-like DNA-binding domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Nucleic acid-binding, OB-fold / Up-down Bundle / Beta Barrel / P-loop containing nucleoside triphosphate hydrolase / 2-Layer Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
DNA replication licensing factor MCM3 / 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 polymerase alpha-binding protein / DNA replication complex GINS protein SLD5 / Cell division control protein 45 ...DNA replication licensing factor MCM3 / 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 polymerase alpha-binding protein / 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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsYuan, Z. / Georgescu, R. / Bai, L. / Santos, R. / Donnell, M. / Li, H.
Funding support United States, 3items
OrganizationGrant numberCountry
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)GM111472 United States
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)OD12272 United States
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)GM45436 United States
CitationJournal: Elife / Year: 2019
Title: Ctf4 organizes sister replisomes and Pol α into a replication factory.
Authors: Zuanning Yuan / Roxana Georgescu / Ruda de Luna Almeida Santos / Daniel Zhang / Lin Bai / Nina Y Yao / Gongpu Zhao / Michael E O'Donnell / Huilin Li /
Abstract: The current view is that eukaryotic replisomes are independent. Here we show that Ctf4 tightly dimerizes CMG helicase, with an extensive interface involving Psf2, Cdc45, and Sld5. Interestingly, Ctf4 ...The current view is that eukaryotic replisomes are independent. Here we show that Ctf4 tightly dimerizes CMG helicase, with an extensive interface involving Psf2, Cdc45, and Sld5. Interestingly, Ctf4 binds only one Pol α-primase. Thus, Ctf4 may have evolved as a trimer to organize two helicases and one Pol α-primase into a replication factory. In the 2CMG-Ctf4-1Pol α-primase factory model, the two CMGs nearly face each other, placing the two lagging strands toward the center and two leading strands out the sides. The single Pol α-primase is centrally located and may prime both sister replisomes. The Ctf4-coupled-sister replisome model is consistent with cellular microscopy studies revealing two sister forks of an origin remain attached and are pushed forward from a protein platform. The replication factory model may facilitate parental nucleosome transfer during replication.
History
DepositionJul 15, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 20, 2019Provider: repository / Type: Initial release
Revision 1.1Dec 18, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization

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Structure visualization

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Assembly

Deposited unit
A: DNA replication complex GINS protein PSF1
B: DNA replication complex GINS protein PSF2
C: DNA replication complex GINS protein PSF3
D: DNA replication complex GINS protein SLD5
c: Cell division control protein 45
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
E: DNA polymerase alpha-binding protein
F: DNA polymerase alpha-binding protein
G: DNA polymerase alpha-binding protein


Theoretical massNumber of molelcules
Total (without water)1,099,61214
Polymers1,099,61214
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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

#1: 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: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q12488
#2: 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 (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: PSF2, YJL072C, HRF213, J1086 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P40359
#3: Protein DNA replication complex GINS protein PSF3 / Partner of Sld five 3


Mass: 21977.135 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: PSF3, YOL146W / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q12146
#4: 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 (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: SLD5, YDR489W / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q03406

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Protein , 3 types, 5 molecules c5EFG

#5: Protein Cell division control protein 45


Mass: 74324.836 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: CDC45, SLD4, YLR103C, L8004.11 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q08032
#9: 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
#12: Protein DNA polymerase alpha-binding protein / Chromosome replication protein CHL15 / Chromosome transmission fidelity protein 4 / Protein POB1


Mass: 104543.391 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: CTF4, CHL15, POB1, YPR135W, P9659.7 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q01454

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

#6: 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
#7: Protein DNA replication licensing factor MCM3 / Minichromosome maintenance protein 3


Mass: 107653.508 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
#8: 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
#10: 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
#11: 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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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

ComponentName: CMG-Ctf4 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Source (recombinant)Organism: Saccharomyces cerevisiae (brewer's yeast) / Plasmid: pRS
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationCryogen 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: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 200491 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
RefinementHighest resolution: 3.8 Å

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