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- EMDB-9400: Cryo-EM structure of Mcm2-7 double hexamer on dsDNA -

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Basic information

Entry
Database: EMDB / ID: EMD-9400
TitleCryo-EM structure of Mcm2-7 double hexamer on dsDNA
Map dataMcm2-7 double hexamer on dsDNA
Sample
  • Complex: Mcm double hexamer bound to double-stranded DNA
    • Complex: Mcm double hexamer
      • 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: DNA replication licensing factor MCM5
      • Protein or peptide: DNA replication licensing factor MCM6
      • Protein or peptide: DNA replication licensing factor MCM7
    • Complex: synthetic double-stranded DNA
      • DNA: DNA (60-mer), strand 1
      • DNA: DNA (60-mer), strand 2
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
Function / homology
Function and homology information


MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / nuclear DNA replication / MCM complex binding / 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 ...MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / nuclear DNA replication / MCM complex binding / 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 / 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 / single-stranded DNA binding / DNA helicase / chromosome, telomeric region / DNA damage response / chromatin binding / ATP hydrolysis activity / nucleoplasm / ATP binding / metal ion binding / nucleus / cytoplasm
Similarity search - Function
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 ...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 / Winged helix-like DNA-binding domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Nucleic acid-binding, OB-fold / 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 licensing factor MCM6
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsLi H / Yuan Z / Bai L
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM111472 United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2017
Title: Cryo-EM structure of Mcm2-7 double hexamer on DNA suggests a lagging-strand DNA extrusion model.
Authors: Yasunori Noguchi / Zuanning Yuan / Lin Bai / Sarah Schneider / Gongpu Zhao / Bruce Stillman / Christian Speck / Huilin Li /
Abstract: During replication initiation, the core component of the helicase-the Mcm2-7 hexamer-is loaded on origin DNA as a double hexamer (DH). The two ring-shaped hexamers are staggered, leading to a kinked ...During replication initiation, the core component of the helicase-the Mcm2-7 hexamer-is loaded on origin DNA as a double hexamer (DH). The two ring-shaped hexamers are staggered, leading to a kinked axial channel. How the origin DNA interacts with the axial channel is not understood, but the interaction could provide key insights into Mcm2-7 function and regulation. Here, we report the cryo-EM structure of the Mcm2-7 DH on dsDNA and show that the DNA is zigzagged inside the central channel. Several of the Mcm subunit DNA-binding loops, such as the oligosaccharide-oligonucleotide loops, helix 2 insertion loops, and presensor 1 (PS1) loops, are well defined, and many of them interact extensively with the DNA. The PS1 loops of Mcm 3, 4, 6, and 7, but not 2 and 5, engage the lagging strand with an approximate step size of one base per subunit. Staggered coupling of the two opposing hexamers positions the DNA right in front of the two Mcm2-Mcm5 gates, with each strand being pressed against one gate. The architecture suggests that lagging-strand extrusion initiates in the middle of the DH that is composed of the zinc finger domains of both hexamers. To convert the Mcm2-7 DH structure into the Mcm2-7 hexamer structure found in the active helicase, the N-tier ring of the Mcm2-7 hexamer in the DH-dsDNA needs to tilt and shift laterally. We suggest that these N-tier ring movements cause the DNA strand separation and lagging-strand extrusion.
History
DepositionSep 12, 2017-
Header (metadata) releaseOct 25, 2017-
Map releaseOct 25, 2017-
UpdateJan 8, 2020-
Current statusJan 8, 2020Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.026
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.026
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5bk4
  • Surface level: 0.026
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_9400.png

Downloads & links

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Map

FileDownload / File: emd_9400.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMcm2-7 double hexamer on dsDNA
Voxel sizeX=Y=Z: 1.088 Å
Density
Contour LevelBy AUTHOR: 0.026 / Movie #1: 0.026
Minimum - Maximum-0.13268049 - 0.2544556
Average (Standard dev.)0.001590641 (±0.008777504)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 278.528 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0881.0881.088
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z278.528278.528278.528
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.1330.2540.002

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Supplemental data

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Sample components

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Entire : Mcm double hexamer bound to double-stranded DNA

EntireName: Mcm double hexamer bound to double-stranded DNA
Components
  • Complex: Mcm double hexamer bound to double-stranded DNA
    • Complex: Mcm double hexamer
      • 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: DNA replication licensing factor MCM5
      • Protein or peptide: DNA replication licensing factor MCM6
      • Protein or peptide: DNA replication licensing factor MCM7
    • Complex: synthetic double-stranded DNA
      • DNA: DNA (60-mer), strand 1
      • DNA: DNA (60-mer), strand 2
  • Ligand: ADENOSINE-5'-DIPHOSPHATE

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Supramolecule #1: Mcm double hexamer bound to double-stranded DNA

SupramoleculeName: Mcm double hexamer bound to double-stranded DNA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#8
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)

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Supramolecule #2: Mcm double hexamer

SupramoleculeName: Mcm double hexamer / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#6
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's yeast)

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Supramolecule #3: synthetic double-stranded DNA

SupramoleculeName: synthetic double-stranded DNA / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #7-#8
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)

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Macromolecule #1: DNA replication licensing factor MCM2

MacromoleculeName: DNA replication licensing factor MCM2 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 98.911539 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #2: DNA replication licensing factor MCM3

MacromoleculeName: DNA replication licensing factor MCM3 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 107.653508 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #3: DNA replication licensing factor MCM4

MacromoleculeName: DNA replication licensing factor MCM4 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 105.138375 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #4: DNA replication licensing factor MCM5

MacromoleculeName: DNA replication licensing factor MCM5 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 86.505734 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #5: DNA replication licensing factor MCM6

MacromoleculeName: DNA replication licensing factor MCM6 / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 113.110211 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #6: DNA replication licensing factor MCM7

MacromoleculeName: DNA replication licensing factor MCM7 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 95.049875 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's 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

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Macromolecule #7: DNA (60-mer), strand 1

MacromoleculeName: DNA (60-mer), strand 1 / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 18.491848 KDa
SequenceString: (DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA) (DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT) (DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC) (DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA)(DG) (DT) (DC)(DA)(DG)(DT)(DC)(DA) ...String:
(DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA) (DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT) (DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC) (DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA)(DG) (DT) (DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT) (DC)(DA)(DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA) (DG)(DT)

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Macromolecule #8: DNA (60-mer), strand 2

MacromoleculeName: DNA (60-mer), strand 2 / type: dna / ID: 8 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 18.491848 KDa
SequenceString: (DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC) (DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG) (DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA) (DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT) (DG) (DA)(DC)(DT)(DG)(DA)(DC) ...String:
(DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC) (DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG) (DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA) (DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT) (DG) (DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG) (DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC) (DT)(DG)

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Macromolecule #9: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 9 / Number of copies: 8 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

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

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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

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 10.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionSoftware: (Name: CTFFIND (ver. 4), Gctf)
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

3ja8

Initial angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 2)
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 2)
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 2) / Number images used: 58772

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