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- EMDB-47472: Cryo-EM structure of yeast CMG helicase stalled at G4-containing ... -

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Basic information

Entry
Database: EMDB / ID: EMD-47472
TitleCryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3
Map dataComposite map of yeast CMG G4 stall state 3
Sample
  • Complex: Yeast CMG-CTM G4 stall state 3
    • Protein or peptide: x 12 types
    • DNA: x 2 types
  • Ligand: x 4 types
Keywordshelicase / DNA replication / cell division / fork stalling / translocation / REPLICATION / REPLICATION-DNA complex
Function / homology
Function and homology information


maintenance of DNA repeat elements / Unwinding of DNA / replication fork arrest / 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 ...maintenance of DNA repeat elements / Unwinding of DNA / replication fork arrest / 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 / Activation of the pre-replicative complex / mitotic DNA replication / DNA replication checkpoint signaling / CMG complex / nuclear pre-replicative complex / Activation of ATR in response to replication stress / DNA replication preinitiation complex / MCM complex / replication fork protection complex / double-strand break repair via break-induced replication / single-stranded DNA helicase activity / mitotic DNA replication initiation / silent mating-type cassette heterochromatin formation / regulation of DNA-templated DNA replication initiation / mitotic sister chromatid cohesion / DNA strand elongation involved in DNA replication / replication fork processing / nuclear replication fork / : / DNA replication origin binding / DNA replication initiation / subtelomeric heterochromatin formation / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / meiotic cell cycle / helicase activity / transcription elongation by RNA polymerase II / DNA-templated DNA replication / heterochromatin formation / single-stranded DNA binding / chromatin extrusion motor activity / ATP-dependent H2AZ histone chaperone activity / ATP-dependent H3-H4 histone complex chaperone activity / DNA helicase / cohesin loader activity / DNA clamp loader activity / DNA replication / chromosome, telomeric region / DNA repair / DNA damage response / chromatin binding / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Timeless, N-terminal / Timeless / Timeless protein / : / PSF3 N-terminal domain / CDC45 family / DNA replication complex GINS protein Psf2 / CDC45 / GINS complex, subunit Psf1 / GINS complex, subunit Psf3 ...Timeless, N-terminal / Timeless / Timeless protein / : / PSF3 N-terminal domain / CDC45 family / DNA replication complex GINS protein Psf2 / CDC45 / 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 / MCM3 winged helix domain / GINS complex subunit Sld5 / GINS subunit, domain A / GINS complex protein helical bundle domain / MCM4, winged helix domain / : / 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 / Winged helix-like DNA-binding domain superfamily / Nucleic acid-binding, OB-fold / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
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 / Topoisomerase 1-associated factor 1 / 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 / Topoisomerase 1-associated factor 1 / 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 W303 (yeast) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsAllwein B / Batra S / Remus D / Hite R
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM152094 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM126907 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)P30 CA008748 United States
CitationJournal: Science / Year: 2025
Title: G-quadruplex-stalled eukaryotic replisome structure reveals helical inchworm DNA translocation.
Authors: Sahil Batra / Benjamin Allwein / Charanya Kumar / Sujan Devbhandari / Jan-Gert Brüning / Soon Bahng / Chong M Lee / Kenneth J Marians / Richard K Hite / Dirk Remus /
Abstract: DNA G-quadruplexes (G4s) are non-B-form DNA secondary structures that threaten genome stability by impeding DNA replication. To elucidate how G4s induce replication fork arrest, we characterized fork ...DNA G-quadruplexes (G4s) are non-B-form DNA secondary structures that threaten genome stability by impeding DNA replication. To elucidate how G4s induce replication fork arrest, we characterized fork collisions with preformed G4s in the parental DNA using reconstituted yeast and human replisomes. We demonstrate that a single G4 in the leading strand template is sufficient to stall replisomes by arresting the CMG helicase. Cryo-electron microscopy structures of stalled yeast and human CMG complexes reveal that the folded G4 is lodged inside the central CMG channel, arresting translocation. The G4 stabilizes the CMG at distinct translocation intermediates, suggesting an unprecedented helical inchworm mechanism for DNA translocation. These findings illuminate the eukaryotic replication fork mechanism under normal and perturbed conditions.
History
DepositionOct 23, 2024-
Header (metadata) releaseMar 26, 2025-
Map releaseMar 26, 2025-
UpdateMar 26, 2025-
Current statusMar 26, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_47472.png

Downloads & links

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Map

FileDownload / File: emd_47472.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationComposite map of yeast CMG G4 stall state 3
Projections & slices

Image control

Size
Brightness
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AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 448 pix.
= 370.048 Å		0.83 Å/pix.
x 448 pix.
= 370.048 Å		0.83 Å/pix.
x 448 pix.
= 370.048 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.826 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.841
Minimum - Maximum-9.647183 - 15.406828000000001
Average (Standard dev.)0.00016403804 (±0.31989244)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions448448448
Spacing448448448
CellA=B=C: 370.04797 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_47472_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Yeast CMG-CTM G4 stall state 3

EntireName: Yeast CMG-CTM G4 stall state 3
Components
  • Complex: Yeast CMG-CTM G4 stall state 3
    • Protein or peptide: DNA replication licensing factor MCM2
    • Protein or peptide: DNA replication licensing factor MCM3
    • Protein or peptide: DNA replication licensing factor MCM4
    • Protein or peptide: Minichromosome maintenance protein 5
    • Protein or peptide: DNA replication licensing factor MCM6
    • Protein or peptide: DNA replication licensing factor MCM7
    • Protein or peptide: DNA replication complex GINS protein PSF1
    • Protein or peptide: DNA replication complex GINS protein PSF2
    • Protein or peptide: DNA replication complex GINS protein PSF3
    • Protein or peptide: DNA replication complex GINS protein SLD5
    • Protein or peptide: Cell division control protein 45
    • DNA: Leading strand DNA template
    • DNA: Lagging strand DNA template
    • Protein or peptide: Topoisomerase 1-associated factor 1
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: ZINC ION
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE

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Supramolecule #1: Yeast CMG-CTM G4 stall state 3

SupramoleculeName: Yeast CMG-CTM G4 stall state 3 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #8-#13, #1-#7, #14
Details: Yeast CMG stalled at G4, state 3 (lacking most of the fork protection complex Tof1-Csm3)
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 596.5 KDa

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Macromolecule #1: DNA replication complex GINS protein PSF1

MacromoleculeName: DNA replication complex GINS protein PSF1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 24.230576 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MYGDLGNKLV LEAKRTKQLY ARSNQDVNLP MYHEDIIRNI LKEVSNLRKN TEYLKEQQQL GMLDDKVAKC QYFVTLLCME RNKRCLLAY QRLRTDILDS MAWNNNGLDL MSSITFSQQD TNNLSHQEQE YLKEYCDLIT DLKSGDLVDI DLSGSLVPPS D VFIDVRVL ...String:
MYGDLGNKLV LEAKRTKQLY ARSNQDVNLP MYHEDIIRNI LKEVSNLRKN TEYLKEQQQL GMLDDKVAKC QYFVTLLCME RNKRCLLAY QRLRTDILDS MAWNNNGLDL MSSITFSQQD TNNLSHQEQE YLKEYCDLIT DLKSGDLVDI DLSGSLVPPS D VFIDVRVL KDAGEIQTEY GVFNLIKDSQ FFVRQSDVER LIQQGYLQKI

UniProtKB: DNA replication complex GINS protein PSF1

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Macromolecule #2: DNA replication complex GINS protein PSF2

MacromoleculeName: DNA replication complex GINS protein PSF2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 25.096807 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSLPAHLQQT FSPEEIQFIV ENEPIKIFPR ITTRQKIRGD DRGTGNHTRW QLITTDDKAL NNMVAMRSTE VVLWIALLLK QQSKCSIVA PQWLTTKELD RKIQYEKTHP DRFSELPWNW LVLARILFNK AKDDFHDPIH ELRGKIQDLR EIRQIKVLKG L KYLNESHL ...String:
MSLPAHLQQT FSPEEIQFIV ENEPIKIFPR ITTRQKIRGD DRGTGNHTRW QLITTDDKAL NNMVAMRSTE VVLWIALLLK QQSKCSIVA PQWLTTKELD RKIQYEKTHP DRFSELPWNW LVLARILFNK AKDDFHDPIH ELRGKIQDLR EIRQIKVLKG L KYLNESHL QLDNLSLLEI NELRPFITEI MDKLREIHTA SLTAGTENDE EEFNI

UniProtKB: DNA replication complex GINS protein PSF2

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Macromolecule #3: DNA replication complex GINS protein PSF3

MacromoleculeName: DNA replication complex GINS protein PSF3 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 24.437859 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MGSSHHHHHH SSGLVPRGSH MASMGYYDID DVLADGTEFP CKFQYDIPGL GYLENNPGRP ITKNTKLSLP LWLARILAIV GGDEALVDE EPVPFVELLP PDMFSTKVMN AIKTDPVALD LHSINSHFFS LAIKWIMLFS EKELANVVSE LLLQRAQELN H HASSLSID ...String:
MGSSHHHHHH SSGLVPRGSH MASMGYYDID DVLADGTEFP CKFQYDIPGL GYLENNPGRP ITKNTKLSLP LWLARILAIV GGDEALVDE EPVPFVELLP PDMFSTKVMN AIKTDPVALD LHSINSHFFS LAIKWIMLFS EKELANVVSE LLLQRAQELN H HASSLSID LNADSTGKNS ANTNIATSTF LLKLEEMEKE IYKKSHESYK DTKRWMFKK

UniProtKB: DNA replication complex GINS protein PSF3

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Macromolecule #4: DNA replication complex GINS protein SLD5

MacromoleculeName: DNA replication complex GINS protein SLD5 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 33.983617 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MDINIDDILA ELDKETTAVD STKITQGSSS TTHRDANTIV GSSLDLNDKT QIYVSPQQDF SDLMKSWKNE RCSPELLPYP HQLMKRLLN RISMQSQLIE NISMGFLDMQ NASNANPPMP NESKLPLLCM ETELERLKFV IRSYIRCRLS KIDKFSLYLR Q LNEDENSL ...String:
MDINIDDILA ELDKETTAVD STKITQGSSS TTHRDANTIV GSSLDLNDKT QIYVSPQQDF SDLMKSWKNE RCSPELLPYP HQLMKRLLN RISMQSQLIE NISMGFLDMQ NASNANPPMP NESKLPLLCM ETELERLKFV IRSYIRCRLS KIDKFSLYLR Q LNEDENSL ISLTDLLSKD EIKYHDTHSL IWLKLVNDSI LKYMPEELQA INDTEGSVNM IDEPDWNKFV FIHVNGPPDG KW NEDPLLQ ENEFGKPCYT VTIPDLKEEV ELTIGSIYVM RYEVIRDLLR DDKVALI

UniProtKB: DNA replication complex GINS protein SLD5

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Macromolecule #5: Cell division control protein 45

MacromoleculeName: Cell division control protein 45 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 74.324836 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MYYGISQFSE AYNKILRNSS SHSSCQLVIF VSCLNIDALC ATKMLSLLFK KQLVQSQIVP IFGYSELRRH YSQLDDNINS LLLVGFGGV IDLEAFLEID PQEYVIDTDE KSGEQSFRRD IYVLDAHRPW NLDNIFGSQI IQCFDDGTVD DTLGEQKEAY Y KLLELDEE ...String:
MYYGISQFSE AYNKILRNSS SHSSCQLVIF VSCLNIDALC ATKMLSLLFK KQLVQSQIVP IFGYSELRRH YSQLDDNINS LLLVGFGGV IDLEAFLEID PQEYVIDTDE KSGEQSFRRD IYVLDAHRPW NLDNIFGSQI IQCFDDGTVD DTLGEQKEAY Y KLLELDEE SGDDELSGDE NDNNGGDDEA TDADEVTDED EEDEDETISN KRGNSSIGPN DLSKRKQRKK QIHEYEGVLE EY YSQGTTV VNSISAQIYS LLSAIGETNL SNLWLNILGT TSLDIAYAQV YNRLYPLLQD EVKRLTPSSR NSVKTPDTLT LNI QPDYYL FLLRHSSLYD SFYYSNYVNA KLSLWNENGK KRLHKMFARM GIPLSTAQET WLYMDHSIKR ELGIIFDKNL DRYG LQDII RDGFVRTLGY RGSISASEFV EALTALLEVG NSTDKDSVKI NNDNNDDTDG EEEEDNSAQK LTNLRKRWVS NFWLS WDAL DDRKVELLNR GIQLAQDLQR AIFNTGVAIL EKKLIKHLRI YRLCVLQDGP DLDLYRNPLT LLRLGNWLIE CCAESE DKQ LLPMVLASID ENTDTYLVAG LTPRYPRGLD TIHTKKPILN NFSMAFQQIT AETDAKVRID NFESSIIEIR REDLSPF LE KLTLSGLL

UniProtKB: Cell division control protein 45

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Macromolecule #8: DNA replication licensing factor MCM2

MacromoleculeName: DNA replication licensing factor MCM2 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 98.911539 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSDNRRRRRE EDDSDSENEL PPSSPQQHFR GGMNPVSSPI GSPDMINPEG DDNEVDDVPD IDEVEEQMNE VDLMDDNMYE DYAADHNRD RYDPDQVDDR EQQELSLSER RRIDAQLNER DRLLRNVAYI DDEDEEQEGA AQLDEMGLPV QRRRRRRQYE D LENSDDDL ...String:
MSDNRRRRRE EDDSDSENEL PPSSPQQHFR GGMNPVSSPI GSPDMINPEG DDNEVDDVPD IDEVEEQMNE VDLMDDNMYE DYAADHNRD RYDPDQVDDR EQQELSLSER RRIDAQLNER DRLLRNVAYI DDEDEEQEGA AQLDEMGLPV QRRRRRRQYE D LENSDDDL LSDMDIDPLR EELTLESLSN VKANSYSEWI TQPNVSRTIA RELKSFLLEY TDETGRSVYG ARIRTLGEMN SE SLEVNYR HLAESKAILA LFLAKCPEEM LKIFDLVAME ATELHYPDYA RIHSEIHVRI SDFPTIYSLR ELRESNLSSL VRV TGVVTR RTGVFPQLKY VKFNCLKCGS ILGPFFQDSN EEIRISFCTN CKSKGPFRVN GEKTVYRNYQ RVTLQEAPGT VPPG RLPRH REVILLADLV DVSKPGEEVE VTGIYKNNYD GNLNAKNGFP VFATIIEANS IKRREGNTAN EGEEGLDVFS WTEEE EREF RKISRDRGII DKIISSMAPS IYGHRDIKTA VACSLFGGVP KNVNGKHSIR GDINVLLLGD PGTAKSQILK YVEKTA HRA VFATGQGASA VGLTASVRKD PITKEWTLEG GALVLADKGV CLIDEFDKMN DQDRTSIHEA MEQQSISISK AGIVTTL QA RCSIIAAANP NGGRYNSTLP LAQNVSLTEP ILSRFDILCV VRDLVDEEAD ERLATFVVDS HVRSHPENDE DREGEELK N NGESAIEQGE DEINEQLNAR QRRLQRQRKK EEEISPIPQE LLMKYIHYAR TKIYPKLHQM DMDKVSRVYA DLRRESIST GSFPITVRHL ESILRIAESF AKMRLSEFVS SYDLDRAIKV VVDSFVDAQK VSVRRQLRRS FAIYTLGH

UniProtKB: DNA replication licensing factor MCM2

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Macromolecule #9: DNA replication licensing factor MCM3

MacromoleculeName: DNA replication licensing factor MCM3 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 107.653508 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MEGSTGFDGD ATTFFAPDAV FGDRVRRFQE FLDTFTSYRD SVRSIQVYNS NNAANYNDDQ DDADERDLLG DDDGDDLEKE KKAASSTSL NILPHRIIIS LDDLREFDRS FWSGILVEPA YFIPPAEKAL TDLADSMDDV PHPNASAVSS RHPWKLSFKG S FGAHALSP ...String:
MEGSTGFDGD ATTFFAPDAV FGDRVRRFQE FLDTFTSYRD SVRSIQVYNS NNAANYNDDQ DDADERDLLG DDDGDDLEKE KKAASSTSL NILPHRIIIS LDDLREFDRS FWSGILVEPA YFIPPAEKAL TDLADSMDDV PHPNASAVSS RHPWKLSFKG S FGAHALSP RTLTAQHLNK LVSVEGIVTK TSLVRPKLIR SVHYAAKTGR FHYRDYTDAT TTLTTRIPTP AIYPTEDTEG NK LTTEYGY STFIDHQRIT VQEMPEMAPA GQLPRSIDVI LDDDLVDKTK PGDRVNVVGV FKSLGAGGMN QSNSNTLIGF KTL ILGNTV YPLHARSTGV AARQMLTDFD IRNINKLSKK KDIFDILSQS LAPSIYGHDH IKKAILLMLM GGVEKNLENG SHLR GDINI LMVGDPSTAK SQLLRFVLNT ASLAIATTGR GSSGVGLTAA VTTDRETGER RLEAGAMVLA DRGVVCIDEF DKMTD VDRV AIHEVMEQQT VTIAKAGIHT TLNARCSVIA AANPVFGQYD VNRDPHQNIA LPDSLLSRFD LLFVVTDDIN EIRDRS ISE HVLRTHRYLP PGYLEGEPVR ERLNLSLAVG EDADINPEEH SNSGAGVENE GEDDEDHVFE KFNPLLQAGA KLAKNKG NY NGTEIPKLVT IPFLRKYVQY AKERVIPQLT QEAINVIVKN YTDLRNDDNT KKSPITARTL ETLIRLATAH AKVRLSKT V NKVDAKVAAN LLRFALLGED IGNDIDEEES EYEEALSKRS PQKSPKKRQR VRQPASNSGS PIKSTPRRST ASSVNATPS SARRILRFQD DEQNAGEDDN DIMSPLPADE EAELQRRLQL GLRVSPRRRE HLHAPEEGSS GPLTEVGTPR LPNVSSAGQD DEQQQSVIS FDNVEPGTIS TGRLSLISGI IARLMQTEIF EEESYPVASL FERINEELPE EEKFSAQEYL AGLKIMSDRN N LMVADDKV WRV

UniProtKB: DNA replication licensing factor MCM3

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Macromolecule #10: DNA replication licensing factor MCM4

MacromoleculeName: DNA replication licensing factor MCM4 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 105.138375 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSQQSSSPTK EDNNSSSPVV PNPDSVPPQL SSPALFYSSS SSQGDIYGRN NSQNLSQGEG NIRAAIGSSP LNFPSSSQRQ NSDVFQSQG RQGRIRSSAS ASGRSRYHSD LRSDRALPTS SSSLGRNGQN RVHMRRNDIH TSDLSSPRRI VDFDTRSGVN T LDTSSSSA ...String:
MSQQSSSPTK EDNNSSSPVV PNPDSVPPQL SSPALFYSSS SSQGDIYGRN NSQNLSQGEG NIRAAIGSSP LNFPSSSQRQ NSDVFQSQG RQGRIRSSAS ASGRSRYHSD LRSDRALPTS SSSLGRNGQN RVHMRRNDIH TSDLSSPRRI VDFDTRSGVN T LDTSSSSA PPSEASEPLR IIWGTNVSIQ ECTTNFRNFL MSFKYKFRKI LDEREEFINN TTDEELYYIK QLNEMRELGT SN LNLDARN LLAYKQTEDL YHQLLNYPQE VISIMDQTIK DCMVSLIVDN NLDYDLDEIE TKFYKVRPYN VGSCKGMREL NPN DIDKLI NLKGLVLRST PVIPDMKVAF FKCNVCDHTM AVEIDRGVIQ EPARCERIDC NEPNSMSLIH NRCSFADKQV IKLQ ETPDF VPDGQTPHSI SLCVYDELVD SCRAGDRIEV TGTFRSIPIR ANSRQRVLKS LYKTYVDVVH VKKVSDKRLD VDTST IEQE LMQNKVDHNE VEEVRQITDQ DLAKIREVAA REDLYSLLAR SIAPSIYELE DVKKGILLQL FGGTNKTFTK GGRYRG DIN ILLCGDPSTS KSQILQYVHK ITPRGVYTSG KGSSAVGLTA YITRDVDTKQ LVLESGALVL SDGGVCCIDE FDKMSDS TR SVLHEVMEQQ TISIAKAGII TTLNARSSIL ASANPIGSRY NPNLPVTENI DLPPPLLSRF DLVYLVLDKV DEKNDREL A KHLTNLYLED KPEHISQDDV LPVEFLTMYI SYAKEHIHPI ITEAAKTELV RAYVGMRKMG DDSRSDEKRI TATTRQLES MIRLAEAHAK MKLKNVVELE DVQEAVRLIR SAIKDYATDP KTGKIDMNLV QTGKSVIQRK LQEDLSREIM NVLKDQASDS MSFNELIKQ INEHSQDRVE SSDIQEALSR LQQEDKVIVL GEGVRRSVRL NNRV

UniProtKB: DNA replication licensing factor MCM4

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Macromolecule #11: Minichromosome maintenance protein 5

MacromoleculeName: Minichromosome maintenance protein 5 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 86.505734 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSFDRPEIYS APVLQGESPN DDDNTEIIKS FKNFILEFRL DSQFIYRDQL RNNILVKNYS LTVNMEHLIG YNEDIYKKLS DEPSDIIPL FETAITQVAK RISILSRAQS ANNNDKDPEN TSMDTDSLLL NSLPTFQLIL NSNANQIPLR DLDSEHVSKI V RLSGIIIS ...String:
MSFDRPEIYS APVLQGESPN DDDNTEIIKS FKNFILEFRL DSQFIYRDQL RNNILVKNYS LTVNMEHLIG YNEDIYKKLS DEPSDIIPL FETAITQVAK RISILSRAQS ANNNDKDPEN TSMDTDSLLL NSLPTFQLIL NSNANQIPLR DLDSEHVSKI V RLSGIIIS TSVLSSRATY LSIMCRNCRH TTSITINNFN SITGNTVSLP RSCLSTIESE SSMANESNIG DESTKKNCGP DP YIIIHES SKFIDQQFLK LQEIPELVPV GEMPRNLTMT CDRYLTNKVI PGTRVTIVGI YSIYNSKNGA GSGRSGGGNG GSG VAIRTP YIKILGIQSD VETSSIWNSV TMFTEEEEEE FLQLSRNPKL YEILTNSIAP SIFGNEDIKK AIVCLLMGGS KKIL PDGMR LRGDINVLLL GDPGTAKSQL LKFVEKVSPI AVYTSGKGSS AAGLTASVQR DPMTREFYLE GGAMVLADGG VVCID EFDK MRDEDRVAIH EAMEQQTISI AKAGITTVLN SRTSVLAAAN PIYGRYDDLK SPGDNIDFQT TILSRFDMIF IVKDDH NEE RDISIANHVI NIHTGNANAM QNQQEENGSE ISIEKMKRYI TYCRLKCAPR LSPQAAEKLS SNFVTIRKQL LINELES TE RSSIPITIRQ LEAIIRITES LAKLELSPIA QERHVDEAIR LFQASTMDAA SQDPIGGLNQ ASGTSLSEIR RFEQELKR R LPIGWSTSYQ TLRREFVDTH RFSQLALDKA LYALEKHETI QLRHQGQNIY RSGV

UniProtKB: Minichromosome maintenance protein 5

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Macromolecule #12: DNA replication licensing factor MCM6

MacromoleculeName: DNA replication licensing factor MCM6 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 113.110211 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSSPFPADTP SSNRPSNSSP PPSSIGAGFG SSSGLDSQIG SRLHFPSSSQ PHVSNSQTGP FVNDSTQFSS QRLQTDGSAT NDMEGNEPA RSFKSRALNH VKKVDDVTGE KVREAFEQFL EDFSVQSTDT GEVEKVYRAQ IEFMKIYDLN TIYIDYQHLS M RENGALAM ...String:
MSSPFPADTP SSNRPSNSSP PPSSIGAGFG SSSGLDSQIG SRLHFPSSSQ PHVSNSQTGP FVNDSTQFSS QRLQTDGSAT NDMEGNEPA RSFKSRALNH VKKVDDVTGE KVREAFEQFL EDFSVQSTDT GEVEKVYRAQ IEFMKIYDLN TIYIDYQHLS M RENGALAM AISEQYYRFL PFLQKGLRRV VRKYAPELLN TSDSLKRSEG DEGQADEDEQ QDDDMNGSSL PRDSGSSAAP GN GTSAMAT RSITTSTSPE QTERVFQISF FNLPTVHRIR DIRSEKIGSL LSISGTVTRT SEVRPELYKA SFTCDMCRAI VDN VEQSFK YTEPTFCPNP SCENRAFWTL NVTRSRFLDW QKVRIQENAN EIPTGSMPRT LDVILRGDSV ERAKPGDRCK FTGV EIVVP DVTQLGLPGV KPSSTLDTRG ISKTTEGLNS GVTGLRSLGV RDLTYKISFL ACHVISIGSN IGASSPDANS NNRET ELQM AANLQANNVY QDNERDQEVF LNSLSSDEIN ELKEMVKDEH IYDKLVRSIA PAVFGHEAVK KGILLQMLGG VHKSTV EGI KLRGDINICV VGDPSTSKSQ FLKYVVGFAP RSVYTSGKAS SAAGLTAAVV RDEEGGDYTI EAGALMLADN GICCIDE FD KMDISDQVAI HEAMEQQTIS IAKAGIHATL NARTSILAAA NPVGGRYNRK LSLRGNLNMT APIMSRFDLF FVILDDCN E KIDTELASHI VDLHMKRDEA IEPPFSAEQL RRYIKYARTF KPILTKEARS YLVEKYKELR KDDAQGFSRS SYRITVRQL ESMIRLSEAI ARANCVDEIT PSFIAEAYDL LRQSIIRVDV DDVEMDEEFD NIESQSHAAS GNNDDNDDGT GSGVITSEPP ADIEEGQSE ATARPGTSEK KKTTVTYDKY VSMMNMIVRK IAEVDREGAE ELTAVDIVDW YLLQKENDLG SLAEYWEERR L AFKVIKRL VKDRILMEIH GTRHNLRDLE NEENENNKTV YVIHPNCEVL DQLEPQDSS

UniProtKB: DNA replication licensing factor MCM6

+
Macromolecule #13: DNA replication licensing factor MCM7

MacromoleculeName: DNA replication licensing factor MCM7 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 95.049875 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString: MSAALPSIQL PVDYNNLFNE ITDFLVTFKQ DTLSSDATRN ENEDENLDAE NIEQHLLEKG PKYMAMLQKV ANRELNSVII DLDDILQYQ NEKFLQGTQA DDLVSAIQQN ANHFTELFCR AIDNNMPLPT KEIDYKDDVL DVILNQRRLR NERMLSDRTN E IRSENLMD ...String:
MSAALPSIQL PVDYNNLFNE ITDFLVTFKQ DTLSSDATRN ENEDENLDAE NIEQHLLEKG PKYMAMLQKV ANRELNSVII DLDDILQYQ NEKFLQGTQA DDLVSAIQQN ANHFTELFCR AIDNNMPLPT KEIDYKDDVL DVILNQRRLR NERMLSDRTN E IRSENLMD TTMDPPSSMN DALREVVEDE TELFPPNLTR RYFLYFKPLS QNCARRYRKK AISSKPLSVR QIKGDFLGQL IT VRGIITR VSDVKPAVEV IAYTCDQCGY EVFQEVNSRT FTPLSECTSE ECSQNQTKGQ LFMSTRASKF SAFQECKIQE LSQ QVPVGH IPRSLNIHVN GTLVRSLSPG DIVDVTGIFL PAPYTGFKAL KAGLLTETYL EAQFVRQHKK KFASFSLTSD VEER VMELI TSGDVYNRLA KSIAPEIYGN LDVKKALLLL LVGGVDKRVG DGMKIRGDIN VCLMGDPGVA KSQLLKAICK ISPRG VYTT GKGSSGVGLT AAVMKDPVTD EMILEGGALV LADNGICCID EFDKMDESDR TAIHEVMEQQ TISISKAGIN TTLNAR TSI LAAANPLYGR YNPRLSPLDN INLPAALLSR FDILFLMLDI PSRDDDEKLA EHVTYVHMHN KQPDLDFTPV EPSKMRE YI AYAKTKRPVM SEAVNDYVVQ AYIRLRQDSK REMDSKFSFG QATPRTLLGI IRLSQALAKL RLADMVDIDD VEEALRLV R VSKESLYQET NKSKEDESPT TKIFTIIKKM LQETGKNTLS YENIVKTVRL RGFTMLQLSN CIQEYSYLNV WHLINEGNT LKFVDDGTMD TDQEDSLVST PKLAPQTTAS ANVSAQDSDI DLQDA

UniProtKB: DNA replication licensing factor MCM7

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Macromolecule #14: Topoisomerase 1-associated factor 1

MacromoleculeName: Topoisomerase 1-associated factor 1 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae W303 (yeast)
Molecular weightTheoretical: 4.676292 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae W303 (yeast)
SequenceString:
SARHSRFGGL LSIQTPDKTR LTVSGSQALV DEKIALQKLD DSK

UniProtKB: Topoisomerase 1-associated factor 1

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Macromolecule #6: Leading strand DNA template

MacromoleculeName: Leading strand DNA template / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 10.993021 KDa
SequenceString:
(DA)(DT)(DC)(DT)(DG)(DC)(DT)(DT)(DT)(DG) (DG)(DG)(DT)(DG)(DG)(DG)(DT)(DG)(DG)(DG) (DT)(DG)(DG)(DG)(DT)(DT)(DG)(DA)(DG) (DG)(DC)(DA)(DA)(DT)(DT)

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Macromolecule #7: Lagging strand DNA template

MacromoleculeName: Lagging strand DNA template / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 2.146449 KDa
SequenceString:
(DA)(DG)(DC)(DA)(DG)(DA)(DT)

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Macromolecule #15: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 15 / Number of copies: 1 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM

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Macromolecule #16: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 16 / Number of copies: 6 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #17: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 17 / Number of copies: 5 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #18: ADENOSINE-5'-TRIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 18 / Number of copies: 5 / Formula: ATP
Molecular weightTheoretical: 507.181 Da
Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration.01 mg/mL
BufferpH: 7.6
Component:
ConcentrationFormulaName
20.0 mMC8H17KN2O4SHEPES-KOH
100.0 mMCH3CO2KPotassium acetate
10.0 mMMg(CH3COO)2Magnesium acetate
2.5 mMC4H10O2S2DTT
0.02 %H(C2H4O)nO(C6H4)C9H19NP-40S
100.0 uMC10H17N6O12P3AMP-PNP
5.0 mMC10H16N5O13P3ATP
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: GRAPHENE OXIDE / Support film - topology: CONTINUOUS / Support film - Film thickness: 0.5
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
Details: Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0.

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 3975 / Average exposure time: 3.0 sec. / Average electron dose: 66.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 29000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1895342
Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.0.0) / Number images used: 81996
Initial angle assignmentType: OTHER / Software - Name: cryoSPARC (ver. 4.0.0)
Details: Stochastic gradient descent (cryoSPARC ab initio model generation)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 4.0.0)
Final 3D classificationSoftware - Name: cryoSPARC (ver. 4.0.0)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelChain - Source name: Other / Chain - Initial model type: in silico model / Details: ModelAngelo
DetailsInitial fitting was performed de novo by ModelAngelo, then iteratively improved with ChimeraX/ISOLDE, Coot, and Phenix real-space refinement algorithms.
RefinementSpace: REAL / Protocol: AB INITIO MODEL / Overall B value: 87.75
Output model

PDB-9e2y:
Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3

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