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- PDB-9q94: CryoEM structure of bacterial transcription intermediate complex ... -

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Basic information

Entry
Database: PDB / ID: 9q94
TitleCryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 3
Components
  • (DNA (34-MER)) x 2
  • (DNA-directed RNA polymerase subunit ...) x 4
  • Psp operon transcriptional activator
  • RNA polymerase sigma-54 factor
KeywordsTRANSCRIPTION / sigma factor / complex / AAA+ / DNA-binding protein
Function / homology
Function and homology information


regulation of cellular response to stress / DNA-binding transcription activator activity / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / cytosolic DNA-directed RNA polymerase complex / bacterial-type RNA polymerase core enzyme binding / regulation of DNA-templated transcription initiation / phosphorelay signal transduction system / sigma factor activity ...regulation of cellular response to stress / DNA-binding transcription activator activity / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / cytosolic DNA-directed RNA polymerase complex / bacterial-type RNA polymerase core enzyme binding / regulation of DNA-templated transcription initiation / phosphorelay signal transduction system / sigma factor activity / bacterial-type flagellum assembly / bacterial-type flagellum-dependent cell motility / nitrate assimilation / nucleotidyltransferase activity / DNA-directed RNA polymerase complex / transcription elongation factor complex / regulation of DNA-templated transcription elongation / transcription antitermination / DNA-templated transcription initiation / cell motility / ribonucleoside binding / : / : / : / : / : / : / DNA-directed RNA polymerase / response to heat / protein-containing complex assembly / transcription regulator complex / sequence-specific DNA binding / intracellular iron ion homeostasis / protein dimerization activity / response to antibiotic / negative regulation of DNA-templated transcription / regulation of DNA-templated transcription / positive regulation of DNA-templated transcription / magnesium ion binding / ATP hydrolysis activity / DNA binding / zinc ion binding / ATP binding / identical protein binding / membrane / cytosol / cytoplasm
Similarity search - Function
Transcription activator PspF / Sigma-54 factors family signature 1. / RNA polymerase sigma factor 54, core-binding domain / RNA polymerase sigma factor 54, DNA-binding / RNA polymerase sigma-54 factor, core-binding domain superfamily / Sigma-54 factor, Activator interacting domain (AID) / Sigma-54, DNA binding domain / Sigma-54 factor, core binding domain / Sigma-54 factors family signature 2. / Sigma-54 factors family profile. ...Transcription activator PspF / Sigma-54 factors family signature 1. / RNA polymerase sigma factor 54, core-binding domain / RNA polymerase sigma factor 54, DNA-binding / RNA polymerase sigma-54 factor, core-binding domain superfamily / Sigma-54 factor, Activator interacting domain (AID) / Sigma-54, DNA binding domain / Sigma-54 factor, core binding domain / Sigma-54 factors family signature 2. / Sigma-54 factors family profile. / RNA polymerase sigma factor 54 / Sigma-54 interaction domain, conserved site / Sigma-54 interaction domain C-terminal part signature. / Sigma-54 interaction domain, ATP-binding site 2 / Sigma-54 interaction domain ATP-binding region B signature. / Sigma-54 interaction domain profile. / Sigma-54 interaction domain / RNA polymerase sigma factor 54 interaction domain / DNA binding HTH domain, Fis-type / Bacterial regulatory protein, Fis family / 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 / DNA-directed RNA polymerase, subunit beta-prime / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RNA polymerase Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / 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 Rpb1, clamp domain superfamily / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / 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 / DNA-directed RNA polymerase, insert domain superfamily / RNA polymerase, N-terminal / RNA polymerase Rpb1, funnel domain superfamily / RNA polymerase I subunit A N-terminus / 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. / Homeobox-like domain superfamily / 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 / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ALUMINUM FLUORIDE / DNA / DNA (> 10) / RNA polymerase sigma-54 factor / DNA-directed RNA polymerase subunit alpha / DNA-directed RNA polymerase subunit omega / DNA-directed RNA polymerase subunit beta' / DNA-directed RNA polymerase subunit beta / Psp operon transcriptional activator
Similarity search - Component
Biological speciesEscherichia coli K-12 (bacteria)
Klebsiella pneumoniae (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.8 Å
AuthorsGao, F. / Zhang, X.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Biotechnology and Biological Sciences Research Council (BBSRC) United Kingdom
CitationJournal: To Be Published
Title: Subunit specialisation in AAA+ proteins and substrate unfolding during transcription complex remodelling
Authors: Gao, F. / Ye, F. / Buck, M. / Zhang, X.
History
DepositionFeb 26, 2025Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 9, 2025Provider: repository / Type: Initial release
Revision 1.0Apr 9, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 9, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 9, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
6: Psp operon transcriptional activator
1: Psp operon transcriptional activator
2: Psp operon transcriptional activator
3: Psp operon transcriptional activator
4: Psp operon transcriptional activator
5: Psp operon transcriptional activator
N: DNA (34-MER)
T: DNA (34-MER)
M: RNA polymerase sigma-54 factor
A: DNA-directed RNA polymerase subunit alpha
B: DNA-directed RNA polymerase subunit alpha
C: DNA-directed RNA polymerase subunit beta
D: DNA-directed RNA polymerase subunit beta'
E: DNA-directed RNA polymerase subunit omega
hetero molecules


Theoretical massNumber of molelcules
Total (without water)650,28029
Polymers647,60214
Non-polymers2,67715
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 7 molecules 612345M

#1: Protein
Psp operon transcriptional activator / Phage shock protein F


Mass: 31016.430 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Gene: pspF, ycjB, b1303, JW1296 / Production host: Escherichia coli K-12 (bacteria) / References: UniProt: P37344
#4: Protein RNA polymerase sigma-54 factor


Mass: 53978.656 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Klebsiella pneumoniae (bacteria)
Gene: rpoN, A7B01_01570, B4U61_10775, B5L96_24890, BANRA_03272, BL124_00020515, BN49_0508, BS595_02095, C3F39_17700, DDJ63_09965, DRB11_15360, EAO17_11045, FXN67_08250, G5637_17550, G7Z27_02650, ...Gene: rpoN, A7B01_01570, B4U61_10775, B5L96_24890, BANRA_03272, BL124_00020515, BN49_0508, BS595_02095, C3F39_17700, DDJ63_09965, DRB11_15360, EAO17_11045, FXN67_08250, G5637_17550, G7Z27_02650, GJJ08_002620, GJJ12_002565, GNE24_14685, GNG14_08115, GPZ86_02700, HV479_13895, NCTC13465_03419, NCTC3279_03959, NCTC5047_03164, SAMEA3499874_03190, SAMEA3499901_03507, SAMEA3500057_00079, SAMEA3512100_03793, SAMEA3538828_04129, SAMEA3649733_03935, SAMEA3649758_00080, SAMEA3720909_03353, SAMEA3727630_04208, SAMEA3727643_03388, SAMEA3727679_00080, SAMEA3729663_03804, SAMEA4364603_00630, SAMEA4873632_04262
Production host: Escherichia coli K-12 (bacteria) / References: UniProt: A0A0N9UTC1

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DNA chain , 2 types, 2 molecules NT

#2: DNA chain DNA (34-MER)


Mass: 10420.691 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli K-12 (bacteria)
#3: DNA chain DNA (34-MER)


Mass: 10500.740 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Production host: Escherichia coli K-12 (bacteria)

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DNA-directed RNA polymerase subunit ... , 4 types, 5 molecules ABCDE

#5: Protein DNA-directed RNA polymerase subunit alpha / RNAP subunit alpha / RNA polymerase subunit alpha / Transcriptase subunit alpha


Mass: 36558.680 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Gene: rpoA, pez, phs, sez, b3295, JW3257 / Production host: Escherichia coli K-12 (bacteria) / References: UniProt: P0A7Z4, DNA-directed RNA polymerase
#6: Protein DNA-directed RNA polymerase subunit beta / RNAP subunit beta / RNA polymerase subunit beta / Transcriptase subunit beta


Mass: 150820.875 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria)
Gene: rpoB, groN, nitB, rif, ron, stl, stv, tabD, b3987, JW3950
Production host: Escherichia coli K-12 (bacteria) / References: UniProt: P0A8V2, DNA-directed RNA polymerase
#7: Protein DNA-directed RNA polymerase subunit beta' / RNAP subunit beta' / RNA polymerase subunit beta' / Transcriptase subunit beta'


Mass: 152415.719 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Gene: rpoC, tabB, b3988, JW3951 / Production host: Escherichia coli K-12 (bacteria) / References: UniProt: P0A8T7, DNA-directed RNA polymerase
#8: Protein DNA-directed RNA polymerase subunit omega / RNAP omega subunit / RNA polymerase omega subunit / Transcriptase subunit omega


Mass: 10249.547 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Gene: rpoZ, b3649, JW3624 / Production host: Escherichia coli K-12 (bacteria) / References: UniProt: P0A800, DNA-directed RNA polymerase

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Non-polymers , 3 types, 15 molecules

#9: Chemical
ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#10: Chemical
ChemComp-AF3 / ALUMINUM FLUORIDE


Mass: 83.977 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: AlF3
#11: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Mg

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Details

Has ligand of interestN
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Subtracted refinement map of conformation 1 of PspF(1-275)-sigma54 bound to nifH DNA (-28 to +35) containing mismatch from -11 to -8.
Type: COMPLEX / Entity ID: #1-#8 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Source (recombinant)Organism: Escherichia coli K-12 (bacteria)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 5.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 25426 / Algorithm: BACK PROJECTION / Details: chimeric map - Resolution is for consensus map / Symmetry type: POINT
RefinementHighest resolution: 5.8 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00435428
ELECTRON MICROSCOPYf_angle_d0.62948713
ELECTRON MICROSCOPYf_dihedral_angle_d13.5346128
ELECTRON MICROSCOPYf_chiral_restr0.0435981
ELECTRON MICROSCOPYf_plane_restr0.0046323

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