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- EMDB-19622: H. sapiens MCM bound to double stranded DNA and ORC1-6 -

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Basic information

Entry
Database: EMDB / ID: EMD-19622
TitleH. sapiens MCM bound to double stranded DNA and ORC1-6
Map dataComposite map of the H. sapiens MCM-ORC complex bound to DNA
Sample
  • Complex: H. sapiens MCM bound to double stranded DNA and ORC1-6
    • Complex: Double stranded DNA
      • DNA: x 2 types
    • Complex: H. sapiens MCM
      • Protein or peptide: x 6 types
    • Complex: H. sapiens ORC1-5
      • Protein or peptide: x 5 types
    • Complex: H. sapiens ORC6
      • Protein or peptide: x 1 types
  • Ligand: x 4 types
KeywordsAAA+ ATPase / DNA helicase / REPLICATION
Function / homology
Function and homology information


polar body extrusion after meiotic divisions / CDC6 association with the ORC:origin complex / origin recognition complex / E2F-enabled inhibition of pre-replication complex formation / Switching of origins to a post-replicative state / Unwinding of DNA / nuclear origin of replication recognition complex / Regulation of MITF-M-dependent genes involved in DNA replication, damage repair and senescence / alpha DNA polymerase:primase complex / mitotic DNA replication ...polar body extrusion after meiotic divisions / CDC6 association with the ORC:origin complex / origin recognition complex / E2F-enabled inhibition of pre-replication complex formation / Switching of origins to a post-replicative state / Unwinding of DNA / nuclear origin of replication recognition complex / Regulation of MITF-M-dependent genes involved in DNA replication, damage repair and senescence / alpha DNA polymerase:primase complex / mitotic DNA replication / CMG complex / inner kinetochore / regulation of phosphorylation / nuclear pre-replicative complex / DNA replication preinitiation complex / MCM complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / mitotic DNA replication initiation / neural precursor cell proliferation / regulation of DNA-templated DNA replication initiation / DNA strand elongation involved in DNA replication / cochlea development / G1/S-Specific Transcription / regulation of DNA replication / DNA replication origin binding / protein polymerization / Activation of the pre-replicative complex / DNA replication initiation / glial cell proliferation / heterochromatin / Activation of ATR in response to replication stress / cellular response to epidermal growth factor stimulus / Assembly of the ORC complex at the origin of replication / cellular response to interleukin-4 / Assembly of the pre-replicative complex / fibrillar center / Orc1 removal from chromatin / cellular response to xenobiotic stimulus / nucleosome assembly / single-stranded DNA binding / DNA helicase / histone binding / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / chromosome, telomeric region / cell population proliferation / DNA replication / nuclear body / cilium / nucleotide binding / intracellular membrane-bounded organelle / apoptotic process / centrosome / DNA damage response / chromatin binding / chromatin / nucleolus / perinuclear region of cytoplasm / enzyme binding / negative regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / zinc ion binding / nucleoplasm / ATP binding / metal ion binding / identical protein binding / nucleus / membrane / cytosol / cytoplasm
Similarity search - Function
Origin recognition complex, subunit 6, metazoa/plant / : / ORC6 second cyclin-like domain / Origin recognition complex subunit 3, insertion domain / Origin recognition complex subunit 3 insertion domain / CDC6, C terminal / Origin recognition complex, subunit 6 / Origin recognition complex subunit 6 (ORC6) / Cdc6, C-terminal / CDC6, C terminal winged helix domain ...Origin recognition complex, subunit 6, metazoa/plant / : / ORC6 second cyclin-like domain / Origin recognition complex subunit 3, insertion domain / Origin recognition complex subunit 3 insertion domain / CDC6, C terminal / Origin recognition complex, subunit 6 / Origin recognition complex subunit 6 (ORC6) / Cdc6, C-terminal / CDC6, C terminal winged helix domain / Origin recognition complex subunit 4 / Origin recognition complex, subunit 3 / Origin recognition complex, subunit 5 / Origin recognition complex subunit 4, C-terminal / Origin recognition complex subunit 3, winged helix C-terminal / Origin recognition complex subunit 3, N-terminal / : / : / Origin recognition complex (ORC) subunit 3 N-terminus / Origin recognition complex (ORC) subunit 4 C-terminus / Origin recognition complex (ORC) subunit 5 C-terminus / Origin recognition complex winged helix C-terminal / ORC5, lid domain / Orc1-like, AAA ATPase domain / Origin recognition complex subunit 2 RecA-like domain / AAA ATPase domain / Origin recognition complex, subunit 2 / DNA replication licensing factor MCM2-like, winged-helix domain / AAA lid domain / AAA lid domain / : / : / MCM5, C-terminal domain / DNA replication licensing factor Mcm5 / MCM3-like, winged helix domain / 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. / Bromo adjacent homology domain / BAH domain / Bromo adjacent homology (BAH) domain / Bromo adjacent homology (BAH) domain superfamily / BAH domain profile. / 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 / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / 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
Origin recognition complex subunit 5 / Origin recognition complex subunit 4 / DNA replication licensing factor MCM3 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM5 / DNA replication licensing factor MCM7 / DNA replication licensing factor MCM2 / Origin recognition complex subunit 1 / Origin recognition complex subunit 2 / DNA replication licensing factor MCM6 ...Origin recognition complex subunit 5 / Origin recognition complex subunit 4 / DNA replication licensing factor MCM3 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM5 / DNA replication licensing factor MCM7 / DNA replication licensing factor MCM2 / Origin recognition complex subunit 1 / Origin recognition complex subunit 2 / DNA replication licensing factor MCM6 / Origin recognition complex subunit 3 / Origin recognition complex subunit 6
Similarity search - Component
Biological speciessynthetic construct (others) / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsGreiwe JF / Weissmann F / Diffley JFX / Costa A
Funding support United Kingdom, European Union, 4 items
OrganizationGrant numberCountry
The Francis Crick InstituteCC2002, CC2009 United Kingdom
European Research Council (ERC)820102European Union
Wellcome Trust219527/Z/19/Z United Kingdom
European Research Council (ERC)101020432-MeChroRepEuropean Union
Citation
Journal: Acta Crystallogr D Struct Biol / Year: 2019
Title: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix.
Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty ...Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams /
Abstract: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks.
#1: Journal: Biorxiv / Year: 2024
Title: MCM Double Hexamer Loading Visualised with Human Proteins
Authors: Weissmann F / Greiwe JF / Puhringer T / Miller TCR / Diffley JFX / Costa A
History
DepositionFeb 13, 2024-
Header (metadata) releaseOct 2, 2024-
Map releaseOct 2, 2024-
UpdateDec 25, 2024-
Current statusDec 25, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_19622.png

Downloads & links

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Map

FileDownload / File: emd_19622.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationComposite map of the H. sapiens MCM-ORC complex bound to DNA
Projections & slices

Image control

Size
Brightness
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Others
AxesX (Sec.)Y (Row.)Z (Col.)
1.08 Å/pix.
x 400 pix.
= 432. Å		1.08 Å/pix.
x 400 pix.
= 432. Å		1.08 Å/pix.
x 400 pix.
= 432. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.08 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 7.0
Minimum - Maximum-33.404957000000003 - 48.610366999999997
Average (Standard dev.)0.0071219304 (±1.1057731)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 432.00003 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : H. sapiens MCM bound to double stranded DNA and ORC1-6

EntireName: H. sapiens MCM bound to double stranded DNA and ORC1-6
Components
  • Complex: H. sapiens MCM bound to double stranded DNA and ORC1-6
    • Complex: Double stranded DNA
      • DNA: DNA (58-mer)
      • DNA: DNA (58-mer)
    • Complex: H. sapiens MCM
      • 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: H. sapiens ORC1-5
      • Protein or peptide: Origin recognition complex subunit 1
      • Protein or peptide: Origin recognition complex subunit 2
      • Protein or peptide: Isoform 2 of Origin recognition complex subunit 3
      • Protein or peptide: Origin recognition complex subunit 4
      • Protein or peptide: Origin recognition complex subunit 5
    • Complex: H. sapiens ORC6
      • Protein or peptide: Origin recognition complex subunit 6
  • Ligand: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
  • Ligand: MAGNESIUM ION
  • Ligand: ZINC ION
  • Ligand: ADENOSINE-5'-DIPHOSPHATE

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Supramolecule #1: H. sapiens MCM bound to double stranded DNA and ORC1-6

SupramoleculeName: H. sapiens MCM bound to double stranded DNA and ORC1-6
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#14
Molecular weightTheoretical: 1 MDa

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Supramolecule #2: Double stranded DNA

SupramoleculeName: Double stranded DNA / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #8-#9
Source (natural)Organism: synthetic construct (others)

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Supramolecule #3: H. sapiens MCM

SupramoleculeName: H. sapiens MCM / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2-#7
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #4: H. sapiens ORC1-5

SupramoleculeName: H. sapiens ORC1-5 / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #10-#14
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #5: H. sapiens ORC6

SupramoleculeName: H. sapiens ORC6 / type: complex / ID: 5 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Origin recognition complex subunit 6

MacromoleculeName: Origin recognition complex subunit 6 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.017697 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: GSELIGRLAP RLGLAEPDML RKAEEYLRLS RVKCVGLSAR TTETSSAVMC LDLAASWMKC PLDRAYLIKL SGLNKETYQS CLKSFECLL GLNSNIGIRD LAVQFSCIEA VNMASKILKS YESSLPQTQQ VDLDLSRPLF TSAALLSACK ILKLKVDKNK M VATSGVKK ...String:
GSELIGRLAP RLGLAEPDML RKAEEYLRLS RVKCVGLSAR TTETSSAVMC LDLAASWMKC PLDRAYLIKL SGLNKETYQS CLKSFECLL GLNSNIGIRD LAVQFSCIEA VNMASKILKS YESSLPQTQQ VDLDLSRPLF TSAALLSACK ILKLKVDKNK M VATSGVKK AIFDRLCKQL EKIGQQVDRE PGDVATPPRK RKKIVVEAPA KEMEKVEEMP HKPQKDEDLT QDYEEWKRKI LE NAASAQK ATAE

UniProtKB: Origin recognition complex subunit 6

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Macromolecule #2: DNA replication licensing factor MCM2

MacromoleculeName: DNA replication licensing factor MCM2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 101.758805 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MAESSESFTM ASSPAQRRRG NDPLTSSPGR SSRRTDALTS SPGRDLPPFE DESEGLLGTE GPLEEEEDGE ELIGDGMERD YRAIPELDA YEAEGLALDD EDVEELTASQ REAAERAMRQ RDREAGRGLG RMRRGLLYDS DEEDEERPAR KRRQVERATE D GEEDEEMI ...String:
MAESSESFTM ASSPAQRRRG NDPLTSSPGR SSRRTDALTS SPGRDLPPFE DESEGLLGTE GPLEEEEDGE ELIGDGMERD YRAIPELDA YEAEGLALDD EDVEELTASQ REAAERAMRQ RDREAGRGLG RMRRGLLYDS DEEDEERPAR KRRQVERATE D GEEDEEMI ESIENLEDLK GHSVREWVSM AGPRLEIHHR FKNFLRTHVD SHGHNVFKER ISDMCKENRE SLVVNYEDLA AR EHVLAYF LPEAPAELLQ IFDEAALEVV LAMYPKYDRI TNHIHVRISH LPLVEELRSL RQLHLNQLIR TSGVVTSCTG VLP QLSMVK YNCNKCNFVL GPFCQSQNQE VKPGSCPECQ SAGPFEVNME ETIYQNYQRI RIQESPGKVA AGRLPRSKDA ILLA DLVDS CKPGDEIELT GIYHNNYDGS LNTANGFPVF ATVILANHVA KKDNKVAVGE LTDEDVKMIT SLSKDQQIGE KIFAS IAPS IYGHEDIKRG LALALFGGEP KNPGGKHKVR GDINVLLCGD PGTAKSQFLK YIEKVSSRAI FTTGQGASAV GLTAYV QRH PVSREWTLEA GALVLADRGV CLIDEFDKMN DQDRTSIHEA MEQQSISISK AGIVTSLQAR CTVIAAANPI GGRYDPS LT FSENVDLTEP IISRFDILCV VRDTVDPVQD EMLARFVVGS HVRHHPSNKE EEGLANGSAA EPAMPNTYGV EPLPQEVL K KYIIYAKERV HPKLNQMDQD KVAKMYSDLR KESMATGSIP ITVRHIESMI RMAEAHARIH LRDYVIEDDV NMAIRVMLE SFIDTQKFSV MRSMRKTFAR YLSFRRDNNE LLLFILKQLV AEQVTYQRNR FGAQQDTIEV PEKDLVDKAR QINIHNLSAF YDSELFRMN KFSHDLKRKM ILQ

UniProtKB: DNA replication licensing factor MCM2

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Macromolecule #3: DNA replication licensing factor MCM3

MacromoleculeName: DNA replication licensing factor MCM3 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 91.297023 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: GEMAGTVVLD DVELREAQRD YLDFLDDEED QGIYQSKVRE LISDNQYRLI VNVNDLRRKN EKRANRLLNN AFEELVAFQR ALKDFVASI DATYAKQYEE FYVGLEGSFG SKHVSPRTLT SCFLSCVVCV EGIVTKCSLV RPKVVRSVHY CPATKKTIER R YSDLTTLV ...String:
GEMAGTVVLD DVELREAQRD YLDFLDDEED QGIYQSKVRE LISDNQYRLI VNVNDLRRKN EKRANRLLNN AFEELVAFQR ALKDFVASI DATYAKQYEE FYVGLEGSFG SKHVSPRTLT SCFLSCVVCV EGIVTKCSLV RPKVVRSVHY CPATKKTIER R YSDLTTLV AFPSSSVYPT KDEENNPLET EYGLSVYKDH QTITIQEMPE KAPAGQLPRS VDVILDDDLV DKAKPGDRVQ VV GTYRCLP GKKGGYTSGT FRTVLIACNV KQMSKDAQPS FSAEDIAKIK KFSKTRSKDI FDQLAKSLAP SIHGHDYVKK AIL CLLLGG VERDLENGSH IRGDINILLI GDPSVAKSQL LRYVLCTAPR AIPTTGRGSS GVGLTAAVTT DQETGERRLE AGAM VLADR GVVCIDEFDK MSDMDRTAIH EVMEQGRVTI AKAGIHARLN ARCSVLAAAN PVYGRYDQYK TPMENIGLQD SLLSR FDLL FIMLDQMDPE QDREISDHVL RMHRYRAPGE QDGDAMPLGS AVDILATDDP NFSQEDQQDT QIYEKHDNLL HGTKKK KEK MVSAAFMKKY IHVAKIIKPV LTQESATYIA EEYSRLRSQD SMSSDTARTS PVTARTLETL IRLATAHAKA RMSKTVD LQ DAEEAVELVQ YAYFKKVLEK EKKRKKRSED ESETEDEEEK SQEDQEQKRK RRKTRQPDAK DGDSYDPYDF SDTEEEMP Q VHTPKTADSQ ETKESQKVEL SESRLKAFKV ALLDVFREAH AQSIGMNRLT ESINRDSEEP FSSVEIQAAL SKMQDDNQV MVSEGIIFLI

UniProtKB: DNA replication licensing factor MCM3

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Macromolecule #4: DNA replication licensing factor MCM4

MacromoleculeName: DNA replication licensing factor MCM4 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 96.702891 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSSPASTPSR RGSRRGRATP AQTPRSEDAR SSPSQRRRGE DSTSTGELQP MPTSPGVDLQ SPAAQDVLFS SPPQMHSSAI PLDFDVSSP LTYGTPSSRV EGTPRSGVRG TPVRQRPDLG SAQKGLQVDL QSDGAAAEDI VASEQSLGQK LVIWGTDVNV A ACKENFQR ...String:
MSSPASTPSR RGSRRGRATP AQTPRSEDAR SSPSQRRRGE DSTSTGELQP MPTSPGVDLQ SPAAQDVLFS SPPQMHSSAI PLDFDVSSP LTYGTPSSRV EGTPRSGVRG TPVRQRPDLG SAQKGLQVDL QSDGAAAEDI VASEQSLGQK LVIWGTDVNV A ACKENFQR FLQRFIDPLA KEEENVGIDI TEPLYMQRLG EINVIGEPFL NVNCEHIKSF DKNLYRQLIS YPQEVIPTFD MA VNEIFFD RYPDSILEHQ IQVRPFNALK TKNMRNLNPE DIDQLITISG MVIRTSQLIP EMQEAFFQCQ VCAHTTRVEM DRG RIAEPS VCGRCHTTHS MALIHNRSLF SDKQMIKLQE SPEDMPAGQT PHTVILFAHN DLVDKVQPGD RVNVTGIYRA VPIR VNPRV SNVKSVYKTH IDVIHYRKTD AKRLHGLDEE AEQKLFSEKR VELLKELSRK PDIYERLASA LAPSIYEHED IKKGI LLQL FGGTRKDFSH TGRGKFRAEI NILLCGDPGT SKSQLLQYVY NLVPRGQYTS GKGSSAVGLT AYVMKDPETR QLVLQT GAL VLSDNGICCI DEFDKMNEST RSVLHEVMEQ QTLSIAKAGI ICQLNARTSV LAAANPIESQ WNPKKTTIEN IQLPHTL LS RFDLIFLMLD PQDEAYDRRL AHHLVALYYQ SEEQAEEELL DMAVLKDYIA YAHSTIMPRL SEEASQALIE AYVDMRKI G SSRGMVSAYP RQLESLIRLA EAHAKVRLSN KVEAIDVEEA KRLHREALKQ SATDPRTGIV DISILTTGMS ATSRKRKEE LAEALKKLIL SKGKTPALKY QQLFEDIRGQ SDIAITKDMF EEALRALADD DFLTVTGKTV RLL

UniProtKB: DNA replication licensing factor MCM4

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Macromolecule #5: DNA replication licensing factor MCM5

MacromoleculeName: DNA replication licensing factor MCM5 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 82.406633 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSGFDDPGIF YSDSFGGDAQ ADEGQARKSQ LQRRFKEFLR QYRVGTDRTG FTFKYRDELK RHYNLGEYWI EVEMEDLASF DEDLADYLY KQPAEHLQLL EEAAKEVADE VTRPRPSGEE VLQDIQVMLK SDASPSSIRS LKSDMMSHLV KIPGIIIAAS A VRAKATRI ...String:
MSGFDDPGIF YSDSFGGDAQ ADEGQARKSQ LQRRFKEFLR QYRVGTDRTG FTFKYRDELK RHYNLGEYWI EVEMEDLASF DEDLADYLY KQPAEHLQLL EEAAKEVADE VTRPRPSGEE VLQDIQVMLK SDASPSSIRS LKSDMMSHLV KIPGIIIAAS A VRAKATRI SIQCRSCRNT LTNIAMRPGL EGYALPRKCN TDQAGRPKCP LDPYFIMPDK CKCVDFQTLK LQELPDAVPH GE MPRHMQL YCDRYLCDKV VPGNRVTIMG IYSIKKFGLT TSRGRDRVGV GIRSSYIRVL GIQVDTDGSG RSFAGAVSPQ EEE EFRRLA ALPNVYEVIS KSIAPSIFGG TDMKKAIACL LFGGSRKRLP DGLTRRGDIN LLMLGDPGTA KSQLLKFVEK CSPI GVYTS GKGSSAAGLT ASVMRDPSSR NFIMEGGAMV LADGGVVCID EFDKMREDDR VAIHEAMEQQ TISIAKAGIT TTLNS RCSV LAAANSVFGR WDETKGEDNI DFMPTILSRF DMIFIVKDEH NEERDVMLAK HVITLHVSAL TQTQAVEGEI DLAKLK KFI AYCRVKCGPR LSAEAAEKLK NRYIIMRSGA RQHERDSDRR SSIPITVRQL EAIVRIAEAL SKMKLQPFAT EADVEEA LR LFQVSTLDAA LSGTLSGVEG FTSQEDQEML SRIEKQLKRR FAIGSQVSEH SIIKDFTKQK YPEHAIHKVL QLMLRRGE I QHRMQRKVLY RLK

UniProtKB: DNA replication licensing factor MCM5

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Macromolecule #6: DNA replication licensing factor MCM6

MacromoleculeName: DNA replication licensing factor MCM6 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 93.010273 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MDLAAAAEPG AGSQHLEVRD EVAEKCQKLF LDFLEEFQSS DGEIKYLQLA EELIRPERNT LVVSFVDLEQ FNQQLSTTIQ EEFYRVYPY LCRALKTFVK DRKEIPLAKD FYVAFQDLPT RHKIRELTSS RIGLLTRISG QVVRTHPVHP ELVSGTFLCL D CQTVIRDV ...String:
MDLAAAAEPG AGSQHLEVRD EVAEKCQKLF LDFLEEFQSS DGEIKYLQLA EELIRPERNT LVVSFVDLEQ FNQQLSTTIQ EEFYRVYPY LCRALKTFVK DRKEIPLAKD FYVAFQDLPT RHKIRELTSS RIGLLTRISG QVVRTHPVHP ELVSGTFLCL D CQTVIRDV EQQFKYTQPN ICRNPVCANR RRFLLDTNKS RFVDFQKVRI QETQAELPRG SIPRSLEVIL RAEAVESAQA GD KCDFTGT LIVVPDVSKL STPGARAETN SRVSGVDGYE TEGIRGLRAL GVRDLSYRLV FLACCVAPTN PRFGGKELRD EEQ TAESIK NQMTVKEWEK VFEMSQDKNL YHNLCTSLFP TIHGNDEVKR GVLLMLFGGV PKTTGEGTSL RGDINVCIVG DPST AKSQF LKHVEEFSPR AVYTSGKASS AAGLTAAVVR DEESHEFVIE AGALMLADNG VCCIDEFDKM DVRDQVAIHE AMEQQ TISI TKAGVKATLN ARTSILAAAN PISGHYDRSK SLKQNINLSA PIMSRFDLFF ILVDECNEVT DYAIARRIVD LHSRIE ESI DRVYSLDDIR RYLLFARQFK PKISKESEDF IVEQYKHLRQ RDGSGVTKSS WRITVRQLES MIRLSEAMAR MHCCDEV QP KHVKEAFRLL NKSIIRVETP DVNLDQEEEI QMEVDEGAGG INGHADSPAP VNGINGYNED INQESAPKAS LRLGFSEY C RISNLIVLHL RKVEEEEDES ALKRSELVNW YLKEIESEID SEEELINKKR IIEKVIHRLT HYDHVLIELT QAGLKGSTE GSESYEEDPY LVVNPNYLLE D

UniProtKB: DNA replication licensing factor MCM6

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Macromolecule #7: DNA replication licensing factor MCM7

MacromoleculeName: DNA replication licensing factor MCM7 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 81.411875 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MALKDYALEK EKVKKFLQEF YQDDELGKKQ FKYGNQLVRL AHREQVALYV DLDDVAEDDP ELVDSICENA RRYAKLFADA VQELLPQYK EREVVNKDVL DVYIEHRLMM EQRSRDPGMV RSPQNQYPAE LMRRFELYFQ GPSSNKPRVI REVRADSVGK L VTVRGIVT ...String:
MALKDYALEK EKVKKFLQEF YQDDELGKKQ FKYGNQLVRL AHREQVALYV DLDDVAEDDP ELVDSICENA RRYAKLFADA VQELLPQYK EREVVNKDVL DVYIEHRLMM EQRSRDPGMV RSPQNQYPAE LMRRFELYFQ GPSSNKPRVI REVRADSVGK L VTVRGIVT RVSEVKPKMV VATYTCDQCG AETYQPIQSP TFMPLIMCPS QECQTNRSGG RLYLQTRGSR FIKFQEMKMQ EH SDQVPVG NIPRSITVLV EGENTRIAQP GDHVSVTGIF LPILRTGFRQ VVQGLLSETY LEAHRIVKMN KSEDDESGAG ELT REELRQ IAEEDFYEKL AASIAPEIYG HEDVKKALLL LLVGGVDQSP RGMKIRGNIN ICLMGDPGVA KSQLLSYIDR LAPR SQYTT GRGSSGVGLT AAVLRDSVSG ELTLEGGALV LADQGVCCID EFDKMAEADR TAIHEVMEQQ TISIAKAGIL TTLNA RCSI LAAANPAYGR YNPRRSLEQN IQLPAALLSR FDLLWLIQDR PDRDNDLRLA QHITYVHQHS RQPPSQFEPL DMKLMR RYI AMCREKQPMV PESLADYITA AYVEMRREAW ASKDATYTSA RTLLAILRLS TALARLRMVD VVEKEDVNEA IRLMEMS KD SLLGDKGQTA RTQRPADVIF ATVRELVSGG RSVRFSEAEQ RCVSRGFTPA QFQAALDEYE ELNVWQVNAS RTRITFV

UniProtKB: DNA replication licensing factor MCM7

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Macromolecule #10: Origin recognition complex subunit 1

MacromoleculeName: Origin recognition complex subunit 1 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 97.499867 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MAHYPTRLKT RKTYSWVGRP LLDRKLHYQT YREMCVKTEG CSTEIHIQIG QFVLIEGDDD ENPYVAKLLE LFEDDSDPPP KKRARVQWF VRFCEVPACK RHLLGRKPGA QEIFWYDYPA CDSNINAETI IGLVRVIPLA PKDVVPTNLK NEKTLFVKLS W NEKKFRPL ...String:
MAHYPTRLKT RKTYSWVGRP LLDRKLHYQT YREMCVKTEG CSTEIHIQIG QFVLIEGDDD ENPYVAKLLE LFEDDSDPPP KKRARVQWF VRFCEVPACK RHLLGRKPGA QEIFWYDYPA CDSNINAETI IGLVRVIPLA PKDVVPTNLK NEKTLFVKLS W NEKKFRPL SSELFAELNK PQESAAKCQK PVRAKSKSAE SPSWTPAEHV AKRIESRHSA SKSRQTPTHP LTPRARKRLE LG NLGNPQM SQQTSCASLD SPGRIKRKVA FSEITSPSKR SQPDKLQTLS PALKAPEKTR ETGLSYTEDD KKASPEHRII LRT RIAASK TIDIREERTL TPISGGQRSS VVPSVILKPE NIKKRDAKEA KAQNEATSTP HRIRRKSSVL TMNRIRQQLR FLGN SKSDQ EEKEILPAAE ISDSSSDEEE ASTPPLPRRA PRTVSRNLRS SLKSSLHTLT KVPKKSLKPR TPRCAAPQIR SRSLA AQEP ASVLEEARLR LHVSAVPESL PCREQEFQDI YNFVESKLLD HTGGCMYISG VPGTGKTATV HEVIRCLQQA AQANDV PPF QYIEVNGMKL TEPHQVYVQI LQKLTGQKAT ANHAAELLAK QFCTRGSPQE TTVLLVDELD LLWTHKQDIM YNLFDWP TH KEARLVVLAI ANTMDLPERI MMNRVSSRLG LTRMCFQPYT YSQLQQILRS RLKHLKAFED DAIQLVARKV AALSGDAR R CLDICRRATE ICEFSQQKPD SPGLVTIAHS MEAVDEMFSS SYITAIKNSS VLEQSFLRAI LAEFRRSGLE EATFQQIYS QHVALCRMEG LPYPTMSETM AVCSHLGSCR LLLVEPSRND LLLRVRLNVS QDDVLYALKD E

UniProtKB: Origin recognition complex subunit 1

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Macromolecule #11: Origin recognition complex subunit 2

MacromoleculeName: Origin recognition complex subunit 2 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 66.063375 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSKPELKEDK MLEVHFVGDD DVLNHILDRE GGAKLKKERA QLLVNPKKII KKPEYDLEED DQEVLKDQNY VEIMGRDVQE SLKNGSATG GGNKVYSFQN RKHSEKMAKL ASELAKTPQK SVSFSLKNDP EITINVPQSS KGHSASDKVQ PKNNDKSEFL S TAPRSLRK ...String:
MSKPELKEDK MLEVHFVGDD DVLNHILDRE GGAKLKKERA QLLVNPKKII KKPEYDLEED DQEVLKDQNY VEIMGRDVQE SLKNGSATG GGNKVYSFQN RKHSEKMAKL ASELAKTPQK SVSFSLKNDP EITINVPQSS KGHSASDKVQ PKNNDKSEFL S TAPRSLRK RLIVPRSHSD SESEYSASNS EDDEGVAQEH EEDTNAVIFS QKIQAQNRVV SAPVGKETPS KRMKRDKTSD LV EEYFEAH SSSKVLTSDR TLQKLKRAKL DQQTLRNLLS KVSPSFSAEL KQLNQQYEKL FHKWMLQLHL GFNIVLYGLG SKR DLLERF RTTMLQDSIH VVINGFFPGI SVKSVLNSIT EEVLDHMGTF RSILDQLDWI VNKFKEDSSL ELFLLIHNLD SQML RGEKS QQIIGQLSSL HNIYLIASID HLNAPLMWDH AKQSLFNWLW YETTTYSPYT EETSYENSLL VKQSGSLPLS SLTHV LRSL TPNARGIFRL LIKYQLDNQD NPSYIGLSFQ DFYQQCREAF LVNSDLTLRA QLTEFRDHKL IRTKKGTDGV EYLLIP VDN GTLTDFLEKE EEEA

UniProtKB: Origin recognition complex subunit 2

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Macromolecule #12: Isoform 2 of Origin recognition complex subunit 3

MacromoleculeName: Isoform 2 of Origin recognition complex subunit 3 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 82.436133 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MATSSMSKGC FVFKPNSKKR KISLPIEDYF NKGKNEPEDS KLRFETYQLI WQQMKSENER LQEELNKNLF DNLIEFLQKS HSGFQKNSR DLGGQIKLRE IPTAALVLGV NVTDHDLTFG SLTEALQNNV TPYVVSLQAK DCPDMKHFLQ KLISQLMDCC V DIKSKEEE ...String:
MATSSMSKGC FVFKPNSKKR KISLPIEDYF NKGKNEPEDS KLRFETYQLI WQQMKSENER LQEELNKNLF DNLIEFLQKS HSGFQKNSR DLGGQIKLRE IPTAALVLGV NVTDHDLTFG SLTEALQNNV TPYVVSLQAK DCPDMKHFLQ KLISQLMDCC V DIKSKEEE SVHVTQRKTH YSMDSLSSWY MTVTQKTDPK MLSKKRTTSS QWQSPPVVVI LKDMESFATK VLQDFIIISS QH LHEFPLI LIFGIATSPI IIHRLLPHAV SSLLCIELFQ SLSCKEHLTT VLDKLLLTTQ FPFKINEKVL QVLTNIFLYH DFS VQNFIK GLQLSLLEHF YSQPLSVLCC NLPEAKRRIN FLSNNQCENI RRLPSFRRYV EKQASEKQVA LLTNERYLKE ETQL LLENL HVYHMNYFLV LRCLHKFTSS LPKYPLGRQI RELYCTCLEK NIWDSEEYAS VLQLLRMLAK DELMTILEKC FKVFK SYCE NHLGSTAKRI EEFLAQFQSL DAETKEEEDA SGSQPKGLQK TDLYHLQKSL LEMKELRRSK KQTKFEVLRE NVVNFI DCL VREYLLPPET QPLHEVVYFS AAHALREHLN AAPRIALHTA LNNPYYYLKN EALKSEEGCI PNIAPDICIA YKLHLEC SR LINLVDWSEA FATVVTAAEK MDANSATSEE MNEIIHARFI RAVSELELLG FIKPTKQKTD HVARLTWGGC

UniProtKB: Origin recognition complex subunit 3

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Macromolecule #13: Origin recognition complex subunit 4

MacromoleculeName: Origin recognition complex subunit 4 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.443266 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSSRKSKSNS LIHTECLSQV QRILRERFCR QSPHSNLFGV QVQYKHLSEL LKRTALHGES NSVLIIGPRG SGKTMLINHA LKELMEIEE VSENVLQVHL NGLLQINDKI ALKEITRQLN LENVVGDKVF GSFAENLSFL LEALKKGDRT SSCPVIFILD E FDLFAHHK ...String:
MSSRKSKSNS LIHTECLSQV QRILRERFCR QSPHSNLFGV QVQYKHLSEL LKRTALHGES NSVLIIGPRG SGKTMLINHA LKELMEIEE VSENVLQVHL NGLLQINDKI ALKEITRQLN LENVVGDKVF GSFAENLSFL LEALKKGDRT SSCPVIFILD E FDLFAHHK NQTLLYNLFD ISQSAQTPIA VIGLTCRLDI LELLEKRVKS RFSHRQIHLM NSFGFPQYVK IFKEQLSLPA EF PDKVFAE KWNENVQYLS EDRSVQEVLQ KHFNISKNLR SLHMLLMLAL NRVTASHPFM TAVDLMEASQ LCSMDSKANI VHG LSVLEI CLIIAMKHLN DIYEEEPFNF QMVYNEFQKF VQRKAHSVYN FEKPVVMKAF EHLQQLELIK PMERTSGNSQ REYQ LMKLL LDNTQIMNAL QKYPNCPTDV RQWATSSLSW L

UniProtKB: Origin recognition complex subunit 4

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Macromolecule #14: Origin recognition complex subunit 5

MacromoleculeName: Origin recognition complex subunit 5 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.349934 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MPHLENVVLC RESQVSILQS LFGERHHFSF PSIFIYGHTA SGKTYVTQTL LKTLELPHVF VNCVECFTLR LLLEQILNKL NHLSSSEDG CSTEITCETF NDFVRLFKQV TTAENLKDQT VYIVLDKAEY LRDMEANLLP GFLRLQELAD RNVTVLFLSE I VWEKFRPN ...String:
MPHLENVVLC RESQVSILQS LFGERHHFSF PSIFIYGHTA SGKTYVTQTL LKTLELPHVF VNCVECFTLR LLLEQILNKL NHLSSSEDG CSTEITCETF NDFVRLFKQV TTAENLKDQT VYIVLDKAEY LRDMEANLLP GFLRLQELAD RNVTVLFLSE I VWEKFRPN TGCFEPFVLY FPDYSIGNLQ KILSHDHPPE YSADFYAAYI NILLGVFYTV CRDLKELRHL AVLNFPKYCE PV VKGEASE RDTRKLWRNI EPHLKKAMQT VYLREISSSQ WEKLQKDDTD PGQLKGLSAH THVELPYYSK FILIAAYLAS YNP ARTDKR FFLKHHGKIK KTNFLKKHEK TSNHLLGPKP FPLDRLLAIL YSIVDSRVAP TANIFSQITS LVTLQLLTLV GHDD QLDGP KYKCTVSLDF IRAIARTVNF DIIKYLYDFL

UniProtKB: Origin recognition complex subunit 5

+
Macromolecule #8: DNA (58-mer)

MacromoleculeName: DNA (58-mer) / type: dna / ID: 8 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 17.790395 KDa
SequenceString: (DT)(DA)(DT)(DT)(DT)(DT)(DC)(DC)(DC)(DT) (DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG) (DA)(DC)(DT)(DG)(DA)(DA)(DC)(DT)(DA) (DT)(DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT)(DG) (DC) (DG)(DC)(DA)(DT)(DG)(DC) ...String:
(DT)(DA)(DT)(DT)(DT)(DT)(DC)(DC)(DC)(DT) (DT)(DG)(DA)(DC)(DT)(DG)(DA)(DC)(DT)(DG) (DA)(DC)(DT)(DG)(DA)(DA)(DC)(DT)(DA) (DT)(DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT)(DG) (DC) (DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT) (DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC)

+
Macromolecule #9: DNA (58-mer)

MacromoleculeName: DNA (58-mer) / type: dna / ID: 9 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 17.955539 KDa
SequenceString: (DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC) (DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC)(DG)(DC) (DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC)(DA) (DT)(DA)(DG)(DT)(DT)(DC)(DA)(DG)(DT)(DC) (DA) (DG)(DT)(DC)(DA)(DG)(DT) ...String:
(DG)(DC)(DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC) (DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC)(DG)(DC) (DA)(DT)(DG)(DC)(DA)(DT)(DG)(DC)(DA) (DT)(DA)(DG)(DT)(DT)(DC)(DA)(DG)(DT)(DC) (DA) (DG)(DT)(DC)(DA)(DG)(DT)(DC)(DA) (DA)(DG)(DG)(DG)(DA)(DA)(DA)(DA)(DT)(DA)

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Macromolecule #15: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER

MacromoleculeName: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / type: ligand / ID: 15 / Number of copies: 5 / Formula: AGS
Molecular weightTheoretical: 523.247 Da
Chemical component information

ChemComp-AGS:
PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / ATP-gamma-S, energy-carrying molecule analogue*YM

+
Macromolecule #16: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 16 / Number of copies: 8 / Formula: MG
Molecular weightTheoretical: 24.305 Da

+
Macromolecule #17: ZINC ION

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

+
Macromolecule #18: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 18 / Number of copies: 3 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, 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

BufferpH: 7.5
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GRAPHENE OXIDE
VitrificationCryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 295 K / Instrument: FEI VITROBOT MARK IV
DetailsThe MCM recruitment reaction was reconstituted in vitro using purified H. sapiens proteins, a short DNA template and ATPgammaS. Four microlitres of the entire reaction was applied on a grid and incubated for 1 min at room temperature before blotting with filter paper for 5 s and plunge-freezing in liquid ethane.

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 31569 / Average exposure time: 9.4 sec. / Average electron dose: 49.28 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 130000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.3.2)
Details: The here represented map is a composite map of the consensus refinement and the locally refined map encompassing the ORC1-5 complex.
Number images used: 182341
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 3.3.2)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 3.3.2)

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Atomic model buiding 1

DetailsThe models of MCM2-7-ORC6 and ORC1-5 that were refined against the consensus refinement of the MCM-ORC complex and the locally refined ORC1-5, respectively, were fitted into the composite map using rigid body docking.
Output model

PDB-8s0d:
H. sapiens MCM bound to double stranded DNA and ORC1-6

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