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- EMDB-21879: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex -

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Basic information

Entry
Database: EMDB / ID: EMD-21879
TitleEscherichia coli RNA polymerase and rrnBP1 promoter closed complex
Map dataRNA polymerase and rrnBP1 promoter closed complex
Sample
  • Complex: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex
    • Protein or peptide: x 5 types
    • DNA: x 4 types
  • Ligand: x 4 types
Function / homology
Function and homology information


sigma factor antagonist complex / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex / regulation of DNA-templated transcription initiation / sigma factor activity / bacterial-type flagellum assembly / bacterial-type flagellum-dependent cell motility ...sigma factor antagonist complex / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex / regulation of DNA-templated transcription initiation / sigma factor activity / bacterial-type flagellum assembly / bacterial-type flagellum-dependent cell motility / nitrate assimilation / transcription elongation factor complex / regulation of DNA-templated transcription elongation / DNA-templated transcription initiation / transcription antitermination / cell motility / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / response to heat / protein-containing complex assembly / intracellular iron ion homeostasis / protein dimerization activity / response to antibiotic / negative regulation of DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
RNA polymerase sigma factor 70, non-essential domain / Sigma-70, non-essential region / RNA polymerase sigma factor 70, region 1.1 / Sigma-70 factor, region 1.1 superfamily / Sigma-70 factor, region 1.1 / Sigma-70 factors family signature 1. / RNA polymerase sigma factor RpoD, C-terminal / RNA polymerase sigma factor RpoD / : / RNA polymerase sigma-70 region 1.2 ...RNA polymerase sigma factor 70, non-essential domain / Sigma-70, non-essential region / RNA polymerase sigma factor 70, region 1.1 / Sigma-70 factor, region 1.1 superfamily / Sigma-70 factor, region 1.1 / Sigma-70 factors family signature 1. / RNA polymerase sigma factor RpoD, C-terminal / RNA polymerase sigma factor RpoD / : / RNA polymerase sigma-70 region 1.2 / Sigma-70 factor, region 1.2 / RNA polymerase sigma-70 region 3 / Sigma-70 region 3 / Sigma-70 factors family signature 2. / RNA polymerase sigma-70 / RNA polymerase sigma-70 region 4 / Sigma-70, region 4 / RNA polymerase sigma-70 region 2 / RNA polymerase sigma-70 like domain / Sigma-70 region 2 / RNA polymerase sigma factor, region 2 / RNA polymerase sigma factor, region 3/4-like / DNA-directed RNA polymerase, omega subunit / DNA-directed RNA polymerase, subunit beta-prime, bacterial type / DNA-directed RNA polymerase, beta subunit, external 1 domain superfamily / DNA-directed RNA polymerase, beta subunit, external 1 domain / RNA polymerase beta subunit external 1 domain / RNA polymerase, alpha subunit, C-terminal / Bacterial RNA polymerase, alpha chain C terminal domain / DNA-directed RNA polymerase, alpha subunit / DNA-directed RNA polymerase beta subunit, bacterial-type / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / RNA polymerase Rpb1, clamp domain superfamily / RNA polymerase Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / DNA-directed RNA polymerase, subunit beta-prime / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / DNA-directed RNA polymerase, insert domain / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases D / RNA polymerase, alpha subunit / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / RNA polymerase, N-terminal / RNA polymerase Rpb1, funnel domain superfamily / RNA polymerase I subunit A N-terminus / DNA-directed RNA polymerase, insert domain superfamily / RNA polymerase, RBP11-like subunit / RNA polymerase Rpb2, domain 2 / RNA polymerase Rpb2, domain 2 / RNA polymerase, beta subunit, conserved site / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerase Rpb2, OB-fold / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerases beta chain signature. / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain / DNA-directed RNA polymerase, subunit 2 / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily / RNA polymerase Rpb2, domain 6 / Winged helix-like DNA-binding domain superfamily
Similarity search - Domain/homology
RNA polymerase sigma factor RpoD / DNA-directed RNA polymerase subunit alpha / DNA-directed RNA polymerase subunit omega / DNA-directed RNA polymerase subunit beta' / DNA-directed RNA polymerase subunit beta
Similarity search - Component
Biological speciesEscherichia coli (E. coli) / Escherichia coli (strain K12) (bacteria) / Escherichia coli K-12 (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.14 Å
AuthorsShin Y / Qayyum MZ / Murakami KS
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM087350 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM131860 United States
CitationJournal: Nat Commun / Year: 2021
Title: Structural basis of ribosomal RNA transcription regulation.
Authors: Yeonoh Shin / M Zuhaib Qayyum / Danil Pupov / Daria Esyunina / Andrey Kulbachinskiy / Katsuhiko S Murakami /
Abstract: Ribosomal RNA (rRNA) is most highly expressed in rapidly growing bacteria and is drastically downregulated under stress conditions by the global transcriptional regulator DksA and the alarmone ppGpp. ...Ribosomal RNA (rRNA) is most highly expressed in rapidly growing bacteria and is drastically downregulated under stress conditions by the global transcriptional regulator DksA and the alarmone ppGpp. Here, we determined cryo-electron microscopy structures of the Escherichia coli RNA polymerase (RNAP) σ holoenzyme during rRNA promoter recognition with and without DksA/ppGpp. RNAP contacts the UP element using dimerized α subunit carboxyl-terminal domains and scrunches the template DNA with the σ finger and β' lid to select the transcription start site favorable for rapid promoter escape. Promoter binding induces conformational change of σ domain 2 that opens a gate for DNA loading and ejects σ from the RNAP cleft to facilitate open complex formation. DksA/ppGpp binding also opens the DNA loading gate, which is not coupled to σ ejection and impedes open complex formation. These results provide a molecular basis for the exceptionally active rRNA transcription and its vulnerability to DksA/ppGpp.
History
DepositionApr 29, 2020-
Header (metadata) releaseMay 13, 2020-
Map releaseMay 13, 2020-
UpdateOct 28, 2020-
Current statusOct 28, 2020Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.013
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.013
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7khc
  • Surface level: 0.013
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_21879.png

Downloads & links

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Map

FileDownload / File: emd_21879.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationRNA polymerase and rrnBP1 promoter closed complex
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 360 pix.
= 388.8 Å		1.08 Å/pix.
x 360 pix.
= 388.8 Å		1.08 Å/pix.
x 360 pix.
= 388.8 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: 0.013 / Movie #1: 0.013
Minimum - Maximum-0.03623734 - 0.075214505
Average (Standard dev.)0.00011288081 (±0.0028675282)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 388.80002 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.081.081.08
M x/y/z360360360
origin x/y/z0.0000.0000.000
length x/y/z388.800388.800388.800
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS360360360
D min/max/mean-0.0360.0750.000

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Supplemental data

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Sample components

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Entire : Escherichia coli RNA polymerase and rrnBP1 promoter closed complex

EntireName: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex
Components
  • Complex: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex
    • Protein or peptide: DNA-directed RNA polymerase subunit alpha
    • Protein or peptide: DNA-directed RNA polymerase subunit beta
    • Protein or peptide: DNA-directed RNA polymerase subunit beta'
    • Protein or peptide: DNA-directed RNA polymerase subunit omega
    • Protein or peptide: RNA polymerase sigma factor RpoD
    • DNA: DNA (80-MER)
    • DNA: DNA (80-MER)
    • DNA: DNA (18 MER)
    • DNA: DNA (18 MER)
  • Ligand: PYROPHOSPHATE 2-
  • Ligand: CHAPSO
  • Ligand: MAGNESIUM ION
  • Ligand: ZINC ION

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Supramolecule #1: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex

SupramoleculeName: Escherichia coli RNA polymerase and rrnBP1 promoter closed complex
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#9
Source (natural)Organism: Escherichia coli (E. coli)
Recombinant expressionOrganism: Escherichia coli (E. coli)

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Macromolecule #1: DNA-directed RNA polymerase subunit alpha

MacromoleculeName: DNA-directed RNA polymerase subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 36.55868 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MQGSVTEFLK PRLVDIEQVS STHAKVTLEP LERGFGHTLG NALRRILLSS MPGCAVTEVE IDGVLHEYST KEGVQEDILE ILLNLKGLA VRVQGKDEVI LTLNKSGIGP VTAADITHDG DVEIVKPQHV ICHLTDENAS ISMRIKVQRG RGYVPASTRI H SEEDERPI ...String:
MQGSVTEFLK PRLVDIEQVS STHAKVTLEP LERGFGHTLG NALRRILLSS MPGCAVTEVE IDGVLHEYST KEGVQEDILE ILLNLKGLA VRVQGKDEVI LTLNKSGIGP VTAADITHDG DVEIVKPQHV ICHLTDENAS ISMRIKVQRG RGYVPASTRI H SEEDERPI GRLLVDACYS PVERIAYNVE AARVEQRTDL DKLVIEMETN GTIDPEEAIR RAATILAEQL EAFVDLRDVR QP EVKEEKP EFDPILLRPV DDLELTVRSA NCLKAEAIHY IGDLVQRTEV ELLKTPNLGK KSLTEIKDVL ASRGLSLGMR LEN WPPASI ADE

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Macromolecule #2: DNA-directed RNA polymerase subunit beta

MacromoleculeName: DNA-directed RNA polymerase subunit beta / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 150.820875 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MVYSYTEKKR IRKDFGKRPQ VLDVPYLLSI QLDSFQKFIE QDPEGQYGLE AAFRSVFPIQ SYSGNSELQY VSYRLGEPVF DVQECQIRG VTYSAPLRVK LRLVIYEREA PEGTVKDIKE QEVYMGEIPL MTDNGTFVIN GTERVIVSQL HRSPGVFFDS D KGKTHSSG ...String:
MVYSYTEKKR IRKDFGKRPQ VLDVPYLLSI QLDSFQKFIE QDPEGQYGLE AAFRSVFPIQ SYSGNSELQY VSYRLGEPVF DVQECQIRG VTYSAPLRVK LRLVIYEREA PEGTVKDIKE QEVYMGEIPL MTDNGTFVIN GTERVIVSQL HRSPGVFFDS D KGKTHSSG KVLYNARIIP YRGSWLDFEF DPKDNLFVRI DRRRKLPATI ILRALNYTTE QILDLFFEKV IFEIRDNKLQ ME LVPERLR GETASFDIEA NGKVYVEKGR RITARHIRQL EKDDVKLIEV PVEYIAGKVV AKDYIDESTG ELICAANMEL SLD LLAKLS QSGHKRIETL FTNDLDHGPY ISETLRVDPT NDRLSALVEI YRMMRPGEPP TREAAESLFE NLFFSEDRYD LSAV GRMKF NRSLLREEIE GSGILSKDDI IDVMKKLIDI RNGKGEVDDI DHLGNRRIRS VGEMAENQFR VGLVRVERAV KERLS LGDL DTLMPQDMIN AKPISAAVKE FFGSSQLSQF MDQNNPLSEI THKRRISALG PGGLTRERAG FEVRDVHPTH YGRVCP IET PEGPNIGLIN SLSVYAQTNE YGFLETPYRK VTDGVVTDEI HYLSAIEEGN YVIAQANSNL DEEGHFVEDL VTCRSKG ES SLFSRDQVDY MDVSTQQVVS VGASLIPFLE HDDANRALMG ANMQRQAVPT LRADKPLVGT GMERAVAVDS GVTAVAKR G GVVQYVDASR IVIKVNEDEM YPGEAGIDIY NLTKYTRSNQ NTCINQMPCV SLGEPVERGD VLADGPSTDL GELALGQNM RVAFMPWNGY NFEDSILVSE RVVQEDRFTT IHIQELACVS RDTKLGPEEI TADIPNVGEA ALSKLDESGI VYIGAEVTGG DILVGKVTP KGETQLTPEE KLLRAIFGEK ASDVKDSSLR VPNGVSGTVI DVQVFTRDGV EKDKRALEIE EMQLKQAKKD L SEELQILE AGLFSRIRAV LVAGGVEAEK LDKLPRDRWL ELGLTDEEKQ NQLEQLAEQY DELKHEFEKK LEAKRRKITQ GD DLAPGVL KIVKVYLAVK RRIQPGDKMA GRHGNKGVIS KINPIEDMPY DENGTPVDIV LNPLGVPSRM NIGQILETHL GMA AKGIGD KINAMLKQQQ EVAKLREFIQ RAYDLGADVR QKVDLSTFSD EEVMRLAENL RKGMPIATPV FDGAKEAEIK ELLK LGDLP TSGQIRLYDG RTGEQFERPV TVGYMYMLKL NHLVDDKMHA RSTGSYSLVT QQPLGGKAQF GGQRFGEMEV WALEA YGAA YTLQEMLTVK SDDVNGRTKM YKNIVDGNHQ MEPGMPESFN VLLKEIRSLG INIELEDE

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Macromolecule #3: DNA-directed RNA polymerase subunit beta'

MacromoleculeName: DNA-directed RNA polymerase subunit beta' / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 155.366781 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MKDLLKFLKA QTKTEEFDAI KIALASPDMI RSWSFGEVKK PETINYRTFK PERDGLFCAR IFGPVKDYEC LCGKYKRLKH RGVICEKCG VEVTQTKVRR ERMGHIELAS PTAHIWFLKS LPSRIGLLLD MPLRDIERVL YFESYVVIEG GMTNLERQQI L TEEQYLDA ...String:
MKDLLKFLKA QTKTEEFDAI KIALASPDMI RSWSFGEVKK PETINYRTFK PERDGLFCAR IFGPVKDYEC LCGKYKRLKH RGVICEKCG VEVTQTKVRR ERMGHIELAS PTAHIWFLKS LPSRIGLLLD MPLRDIERVL YFESYVVIEG GMTNLERQQI L TEEQYLDA LEEFGDEFDA KMGAEAIQAL LKSMDLEQEC EQLREELNET NSETKRKKLT KRIKLLEAFV QSGNKPEWMI LT VLPVLPP DLRPLVPLDG GRFATSDLND LYRRVINRNN RLKRLLDLAA PDIIVRNEKR MLQEAVDALL DNGRRGRAIT GSN KRPLKS LADMIKGKQG RFRQNLLGKR VDYSGRSVIT VGPYLRLHQC GLPKKMALEL FKPFIYGKLE LRGLATTIKA AKKM VEREE AVVWDILDEV IREHPVLLNR APTLHRLGIQ AFEPVLIEGK AIQLHPLVCA AYNADFDGDQ MAVHVPLTLE AQLEA RALM MSTNNILSPA NGEPIIVPSQ DVVLGLYYMT RDCVNAKGEG MVLTGPKEAE RLYRSGLASL HARVKVRITE YEKDAN GEL VAKTSLKDTT VGRAILWMIV PKGLPYSIVN QALGKKAISK MLNTCYRILG LKPTVIFADQ IMYTGFAYAA RSGASVG ID DMVIPEKKHE IISEAEAEVA EIQEQFQSGL VTAGERYNKV IDIWAAANDR VSKAMMDNLQ TETVINRDGQ EEKQVSFN S IYMMADSGAR GSAAQIRQLA GMRGLMAKPD GSIIETPITA NFREGLNVLQ YFISTHGARK GLADTALKTA NSGYLTRRL VDVAQDLVVT EDDCGTHEGI MMTPVIEGGD VKEPLRDRVL GRVTAEDVLK PGTADILVPR NTLLHEQWCD LLEENSVDAV KVRSVVSCD TDFGVCAHCY GRDLARGHII NKGEAIGVIA AQSIGEPGTQ LTMRTFHIGG AASRAAAESS IQVKNKGSIK L SNVKSVVN SSGKLVITSR NTELKLIDEF GRTKESYKVP YGAVLAKGDG EQVAGGETVA NWDPHTMPVI TEVSGFVRFT DM IDGQTIT RQTDELTGLS SLVVLDSAER TAGGKDLRPA LKIVDAQGND VLIPGTDMPA QYFLPGKAIV QLEDGVQISS GDT LARIPQ ESGGTKDITG GLPRVADLFE ARRPKEPAIL AEISGIVSFG KETKGKRRLV ITPVDGSDPY EEMIPKWRQL NVFE GERVE RGDVISDGPE APHDILRLRG VHAVTRYIVN EVQDVYRLQG VKINDKHIEV IVRQMLRKAT IVNAGSSDFL EGEQV EYSR VKIANRELEA NGKVGATYSR DLLGITKASL ATESFISAAS FQETTRVLTE AAVAGKRDEL RGLKENVIVG RLIPAG TGY AYHQDRMRRR AAGEAPAAPQ VTAEDASASL AELLNAGLGG SDNE

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Macromolecule #4: DNA-directed RNA polymerase subunit omega

MacromoleculeName: DNA-directed RNA polymerase subunit omega / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 10.249547 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MARVTVQDAV EKIGNRFDLV LVAARRARQM QVGGKDPLVP EENDKTTVIA LREIEEGLIN NQILDVRERQ EQQEQEAAEL QAVTAIAEG RR

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Macromolecule #5: RNA polymerase sigma factor RpoD

MacromoleculeName: RNA polymerase sigma factor RpoD / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 70.352242 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MEQNPQSQLK LLVTRGKEQG YLTYAEVNDH LPEDIVDSDQ IEDIIQMIND MGIQVMEEAP DADDLMLAEN TADEDAAEAA AQVLSSVES EIGRTTDPVR MYMREMGTVE LLTREGEIDI AKRIEDGINQ VQCSVAEYPE AITYLLEQYD RVEAEEARLS D LITGFVDP ...String:
MEQNPQSQLK LLVTRGKEQG YLTYAEVNDH LPEDIVDSDQ IEDIIQMIND MGIQVMEEAP DADDLMLAEN TADEDAAEAA AQVLSSVES EIGRTTDPVR MYMREMGTVE LLTREGEIDI AKRIEDGINQ VQCSVAEYPE AITYLLEQYD RVEAEEARLS D LITGFVDP NAEEDLAPTA THVGSELSQE DLDDDEDEDE EDGDDDSADD DNSIDPELAR EKFAELRAQY VVTRDTIKAK GR SHATAQE EILKLSEVFK QFRLVPKQFD YLVNSMRVMM DRVRTQERLI MKLCVEQCKM PKKNFITLFT GNETSDTWFN AAI AMNKPW SEKLHDVSEE VHRALQKLQQ IEEETGLTIE QVKDINRRMS IGEAKARRAK KEMVEANLRL VISIAKKYTN RGLQ FLDLI QEGNIGLMKA VDKFEYRRGY KFSTYATWWI RQAITRSIAD QARTIRIPVH MIETINKLNR ISRQMLQEMG REPTP EELA ERMLMPEDKI RKVLKIAKEP ISMETPIGDD EDSHLGDFIE DTTLELPLDS ATTESLRAAT HDVLAGLTAR EAKVLR MRF GIDMNTDYTL EEVGKQFDVT RERIRQIEAK ALRKLRHPSR SEVLRSFLDD

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Macromolecule #6: DNA (80-MER)

MacromoleculeName: DNA (80-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 24.501729 KDa
SequenceString: (DC)(DA)(DG)(DA)(DA)(DA)(DA)(DT)(DT)(DA) (DT)(DT)(DT)(DT)(DA)(DA)(DA)(DT)(DT)(DT) (DC)(DC)(DT)(DC)(DT)(DT)(DG)(DT)(DC) (DA)(DG)(DG)(DC)(DC)(DG)(DG)(DA)(DA)(DT) (DA) (DA)(DC)(DT)(DC)(DC)(DC) ...String:
(DC)(DA)(DG)(DA)(DA)(DA)(DA)(DT)(DT)(DA) (DT)(DT)(DT)(DT)(DA)(DA)(DA)(DT)(DT)(DT) (DC)(DC)(DT)(DC)(DT)(DT)(DG)(DT)(DC) (DA)(DG)(DG)(DC)(DC)(DG)(DG)(DA)(DA)(DT) (DA) (DA)(DC)(DT)(DC)(DC)(DC)(DT)(DA) (DT)(DA)(DA)(DT)(DG)(DC)(DG)(DC)(DC)(DA) (DC)(DC) (DA)(DC)(DT)(DG)(DA)(DC)(DA) (DC)(DG)(DG)(DA)(DC)(DT)(DC)(DT)(DA)(DC) (DG)(DA)(DG)

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Macromolecule #7: DNA (80-MER)

MacromoleculeName: DNA (80-MER) / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 24.8349 KDa
SequenceString: (DC)(DT)(DC)(DG)(DT)(DA)(DG)(DA)(DG)(DT) (DC)(DC)(DG)(DT)(DG)(DT)(DC)(DA)(DG)(DT) (DG)(DG)(DT)(DG)(DG)(DC)(DG)(DC)(DA) (DT)(DT)(DA)(DT)(DA)(DG)(DG)(DG)(DA)(DG) (DT) (DT)(DA)(DT)(DT)(DC)(DC) ...String:
(DC)(DT)(DC)(DG)(DT)(DA)(DG)(DA)(DG)(DT) (DC)(DC)(DG)(DT)(DG)(DT)(DC)(DA)(DG)(DT) (DG)(DG)(DT)(DG)(DG)(DC)(DG)(DC)(DA) (DT)(DT)(DA)(DT)(DA)(DG)(DG)(DG)(DA)(DG) (DT) (DT)(DA)(DT)(DT)(DC)(DC)(DG)(DG) (DC)(DC)(DT)(DG)(DA)(DC)(DA)(DA)(DG)(DA) (DG)(DG) (DA)(DA)(DA)(DT)(DT)(DT)(DA) (DA)(DA)(DA)(DT)(DA)(DA)(DT)(DT)(DT)(DT) (DC)(DT)(DG)

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Macromolecule #8: DNA (18 MER)

MacromoleculeName: DNA (18 MER) / type: dna / ID: 8 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 5.525593 KDa
SequenceString:
(DT)(DG)(DA)(DC)(DA)(DC)(DG)(DG)(DA)(DC) (DT)(DC)(DT)(DA)(DC)(DG)(DA)(DG)

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Macromolecule #9: DNA (18 MER)

MacromoleculeName: DNA (18 MER) / type: dna / ID: 9 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 5.507565 KDa
SequenceString:
(DC)(DT)(DC)(DG)(DT)(DA)(DG)(DA)(DG)(DT) (DC)(DC)(DG)(DT)(DG)(DT)(DC)(DA)

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Macromolecule #10: PYROPHOSPHATE 2-

MacromoleculeName: PYROPHOSPHATE 2- / type: ligand / ID: 10 / Number of copies: 1 / Formula: POP
Molecular weightTheoretical: 175.959 Da
Chemical component information

ChemComp-POP:
PYROPHOSPHATE 2-

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Macromolecule #11: CHAPSO

MacromoleculeName: CHAPSO / type: ligand / ID: 11 / Number of copies: 2 / Formula: 1N7
Molecular weightTheoretical: 631.884 Da
Chemical component information

ChemComp-1N7:
CHAPSO / detergent*YM

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Macromolecule #12: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 12 / Number of copies: 1 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #13: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 13 / Number of copies: 2 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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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

Concentration10 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 45.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: OTHER
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.14 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0.8) / Number images used: 67187
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: PROJECTION MATCHING

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