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- EMDB-22184: CueR-TAC without RNA -

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Basic information

Entry
Database: EMDB / ID: EMD-22184
TitleCueR-TAC without RNA
Map dataCueR-TAC-nonNTP
Sample
  • Complex: CueR-TAC without RNA
    • 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
    • Protein or peptide: HTH-type transcriptional regulator CueR
    • DNA: NONTEMPLATE STRAND DNA (54-MER)
    • DNA: TEMPLATE STRAND DNA (54-MER)
  • Ligand: ZINC ION
  • Ligand: COPPER (II) ION
Keywordstranscription activation / RNA polymerase / MerR-family / TRANSCRIPTION / TRANSCRIPTION-DNA complex
Function / homology
Function and homology information


sigma factor antagonist complex / DNA-binding transcription activator activity / cytosolic DNA-directed RNA polymerase complex / regulation of DNA-templated transcription initiation / sigma factor activity / cis-regulatory region sequence-specific DNA binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / protein-DNA complex / ribonucleoside binding ...sigma factor antagonist complex / DNA-binding transcription activator activity / cytosolic DNA-directed RNA polymerase complex / regulation of DNA-templated transcription initiation / sigma factor activity / cis-regulatory region sequence-specific DNA binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / protein-DNA complex / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / response to heat / transcription cis-regulatory region binding / protein dimerization activity / copper ion binding / DNA-binding transcription factor activity / negative regulation of DNA-templated transcription / DNA-templated transcription / positive regulation of DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / identical protein binding / cytosol / cytoplasm
Similarity search - Function
Cu(I)-responsive transcriptional regulator / MerR-type HTH domain signature. / : / MerR HTH family regulatory protein / helix_turn_helix, mercury resistance / MerR-type HTH domain profile. / MerR-type HTH domain / RNA polymerase sigma factor 70, non-essential domain / Sigma-70, non-essential region / RNA polymerase sigma factor 70, region 1.1 ...Cu(I)-responsive transcriptional regulator / MerR-type HTH domain signature. / : / MerR HTH family regulatory protein / helix_turn_helix, mercury resistance / MerR-type HTH domain profile. / MerR-type HTH domain / 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 / Putative DNA-binding domain superfamily / 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
DNA-directed RNA polymerase subunit omega / DNA-directed RNA polymerase subunit beta / RNA polymerase sigma factor RpoD / DNA-directed RNA polymerase subunit alpha / DNA-directed RNA polymerase subunit beta' / HTH-type transcriptional regulator CueR
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsLiu B / Shi W
CitationJournal: iScience / Year: 2021
Title: Structural basis of copper-efflux-regulator-dependent transcription activation.
Authors: Wei Shi / Baoyue Zhang / Yanan Jiang / Chang Liu / Wei Zhou / Ming Chen / Yang Yang / Yangbo Hu / Bin Liu /
Abstract: The copper efflux regulator (CueR), a representative member of mercury resistance regulator (MerR) family metalloregulators, controls expression of copper homeostasis-regulating genes in bacteria. ...The copper efflux regulator (CueR), a representative member of mercury resistance regulator (MerR) family metalloregulators, controls expression of copper homeostasis-regulating genes in bacteria. The mechanism of transcription activation by CueR and other MerR family regulators is bending the spacer domain of promoter DNA. Here, we report the cryo-EM structures of the intact CueR-dependent transcription activation complexes. The structures show that CueR dimer bends the 19-bp promoter spacer to realign the -35 and -10 elements for recognition by σ-RNA polymerase holoenzyme and reveal a previously unreported interaction between the DNA-binding domain (DBD) from one CueR subunit and the σ nonconserved region (σNCR). Functional studies have shown that the CueR-σNCR interaction plays an auxiliary role in CueR-dependent transcription, assisting the activation mechanism of bending promoter DNA by CueR dimer. Because DBDs are highly conserved in sequence and structure, this transcription-activating mechanism could be generally used by MerR family regulators.
History
DepositionJun 18, 2020-
Header (metadata) releaseApr 14, 2021-
Map releaseApr 14, 2021-
UpdateMar 6, 2024-
Current statusMar 6, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.00482
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.00482
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6xh7
  • Surface level: 0.00482
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_22184.png

Downloads & links

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Map

FileDownload / File: emd_22184.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCueR-TAC-nonNTP
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.89 Å/pix.
x 384 pix.
= 341.76 Å		0.89 Å/pix.
x 384 pix.
= 341.76 Å		0.89 Å/pix.
x 384 pix.
= 341.76 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.89 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.00482 / Movie #1: 0.00482
Minimum - Maximum-0.014651168 - 0.032635428
Average (Standard dev.)0.000023890523 (±0.001393387)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 341.76 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.890.890.89
M x/y/z384384384
origin x/y/z0.0000.0000.000
length x/y/z341.760341.760341.760
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS384384384
D min/max/mean-0.0150.0330.000

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Supplemental data

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Sample components

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Entire : CueR-TAC without RNA

EntireName: CueR-TAC without RNA
Components
  • Complex: CueR-TAC without RNA
    • 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
    • Protein or peptide: HTH-type transcriptional regulator CueR
    • DNA: NONTEMPLATE STRAND DNA (54-MER)
    • DNA: TEMPLATE STRAND DNA (54-MER)
  • Ligand: ZINC ION
  • Ligand: COPPER (II) ION

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Supramolecule #1: CueR-TAC without RNA

SupramoleculeName: CueR-TAC without RNA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#8
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 530 KDa

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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 (E. coli)
Molecular weightTheoretical: 36.55868 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
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

UniProtKB: DNA-directed RNA polymerase subunit alpha

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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 (E. coli)
Molecular weightTheoretical: 150.820875 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
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

UniProtKB: DNA-directed RNA polymerase subunit beta

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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 (E. coli)
Molecular weightTheoretical: 155.366781 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
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

UniProtKB: DNA-directed RNA polymerase subunit beta'

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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 (E. coli)
Molecular weightTheoretical: 10.249547 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MARVTVQDAV EKIGNRFDLV LVAARRARQM QVGGKDPLVP EENDKTTVIA LREIEEGLIN NQILDVRERQ EQQEQEAAEL QAVTAIAEG RR

UniProtKB: DNA-directed RNA polymerase subunit omega

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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 (E. coli)
Molecular weightTheoretical: 72.206266 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MRGSHHHHHH TDQFTMEQNP QSQLKLLVTR GKEQGYLTYA EVNDHLPEDI VDSDQIEDII QMINDMGIQV MEEAPDADDL MLAENTADE DAAEAAAQVL SSVESEIGRT TDPVRMYMRE MGTVELLTRE GEIDIAKRIE DGINQVQCSV AEYPEAITYL L EQYDRVEA ...String:
MRGSHHHHHH TDQFTMEQNP QSQLKLLVTR GKEQGYLTYA EVNDHLPEDI VDSDQIEDII QMINDMGIQV MEEAPDADDL MLAENTADE DAAEAAAQVL SSVESEIGRT TDPVRMYMRE MGTVELLTRE GEIDIAKRIE DGINQVQCSV AEYPEAITYL L EQYDRVEA EEARLSDLIT GFVDPNAEED LAPTATHVGS ELSQEDLDDD EDEDEEDGDD DSADDDNSID PELAREKFAE LR AQYVVTR DTIKAKGRSH ATAQEEILKL SEVFKQFRLV PKQFDYLVNS MRVMMDRVRT QERLIMKLCV EQCKMPKKNF ITL FTGNET SDTWFNAAIA MNKPWSEKLH DVSEEVHRAL QKLQQIEEET GLTIEQVKDI NRRMSIGEAK ARRAKKEMVE ANLR LVISI AKKYTNRGLQ FLDLIQEGNI GLMKAVDKFE YRRGYKFSTY ATWWIRQAIT RSIADQARTI RIPVHMIETI NKLNR ISRQ MLQEMGREPT PEELAERMLM PEDKIRKVLK IAKEPISMET PIGDDEDSHL GDFIEDTTLE LPLDSATTES LRAATH DVL AGLTAREAKV LRMRFGIDMN TDYTLEEVGK QFDVTRERIR QIEAKALRKL RHPSRSEVLR SFLDD

UniProtKB: RNA polymerase sigma factor RpoD

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Macromolecule #6: HTH-type transcriptional regulator CueR

MacromoleculeName: HTH-type transcriptional regulator CueR / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 16.32732 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MNISDVAKIT GLTSKAIRFY EEKGLVTPPM RSENGYRTYT QQHLNELTLL RQARQVGFNL EESGELVNLF NDPQRHSADV KRRTLEKVA EIERHIEELQ SMRDQLLALA NACPGDDSAD CPIIENLSGC CHHRAGLEHH HHHH

UniProtKB: HTH-type transcriptional regulator CueR

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Macromolecule #7: NONTEMPLATE STRAND DNA (54-MER)

MacromoleculeName: NONTEMPLATE STRAND DNA (54-MER) / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 16.604584 KDa
SequenceString: (DG)(DC)(DC)(DT)(DT)(DG)(DA)(DC)(DC)(DT) (DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DC)(DT) (DG)(DG)(DA)(DA)(DG)(DG)(DT)(DT)(DT) (DA)(DA)(DC)(DC)(DT)(DG)(DT)(DG)(DT)(DG) (DC) (DA)(DG)(DT)(DC)(DT)(DG) ...String:
(DG)(DC)(DC)(DT)(DT)(DG)(DA)(DC)(DC)(DT) (DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DC)(DT) (DG)(DG)(DA)(DA)(DG)(DG)(DT)(DT)(DT) (DA)(DA)(DC)(DC)(DT)(DG)(DT)(DG)(DT)(DG) (DC) (DA)(DG)(DT)(DC)(DT)(DG)(DA)(DC) (DG)(DC)(DG)(DG)(DC)(DG)

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Macromolecule #8: TEMPLATE STRAND DNA (54-MER)

MacromoleculeName: TEMPLATE STRAND DNA (54-MER) / type: dna / ID: 8 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 16.747729 KDa
SequenceString: (DC)(DG)(DC)(DC)(DG)(DC)(DG)(DT)(DC)(DA) (DG)(DA)(DC)(DT)(DC)(DG)(DT)(DA)(DG)(DG) (DA)(DG)(DG)(DT)(DT)(DA)(DA)(DA)(DC) (DC)(DT)(DT)(DC)(DC)(DA)(DG)(DC)(DA)(DA) (DG) (DG)(DG)(DG)(DA)(DA)(DG) ...String:
(DC)(DG)(DC)(DC)(DG)(DC)(DG)(DT)(DC)(DA) (DG)(DA)(DC)(DT)(DC)(DG)(DT)(DA)(DG)(DG) (DA)(DG)(DG)(DT)(DT)(DA)(DA)(DA)(DC) (DC)(DT)(DT)(DC)(DC)(DA)(DG)(DC)(DA)(DA) (DG) (DG)(DG)(DG)(DA)(DA)(DG)(DG)(DT) (DC)(DA)(DA)(DG)(DG)(DC)

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Macromolecule #9: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 9 / Number of copies: 2 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #10: COPPER (II) ION

MacromoleculeName: COPPER (II) ION / type: ligand / ID: 10 / Number of copies: 2 / Formula: CU
Molecular weightTheoretical: 63.546 Da
Chemical component information

ChemComp-CU:
COPPER (II) ION

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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

Concentration0.5 mg/mL
BufferpH: 7.5
GridModel: Quantifoil R2/2 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec.
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 4611 / Average exposure time: 30.0 sec. / Average electron dose: 30.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Calibrated defocus max: 2.4 µm / Calibrated defocus min: 1.0 µm / Calibrated magnification: 96000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 96000
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: 1421781
Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 19894
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 2.15)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)

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