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- PDB-6xav: CryoEM Structure of E. coli Rho-dependent Transcription Pre-termi... -

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Entry
Database: PDB / ID: 6xav
TitleCryoEM Structure of E. coli Rho-dependent Transcription Pre-termination Complex bound with NusG
Components
  • (DNA (29-MER)) x 2
  • (DNA-directed RNA polymerase subunit ...) x 4
  • (Transcription termination/antitermination protein ...) x 2
  • RNA (18-MER)
  • Transcription termination factor Rho
KeywordsTRANSCRIPTION / Rho-dependent transcription termination
Function / homology
Function and homology information


ATP-dependent activity, acting on RNA / RNA polymerase complex / transcription elongation-coupled chromatin remodeling / submerged biofilm formation / cellular response to cell envelope stress / regulation of DNA-templated transcription initiation / protein complex oligomerization / bacterial-type flagellum assembly / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex ...ATP-dependent activity, acting on RNA / RNA polymerase complex / transcription elongation-coupled chromatin remodeling / submerged biofilm formation / cellular response to cell envelope stress / regulation of DNA-templated transcription initiation / protein complex oligomerization / bacterial-type flagellum assembly / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex / bacterial-type flagellum-dependent cell motility / nitrate assimilation / transcription elongation factor complex / regulation of DNA-templated transcription elongation / transcription antitermination / helicase activity / DNA-templated transcription initiation / cell motility / DNA-templated transcription termination / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / ribonucleoside binding / : / : / : / : / : / : / DNA-directed RNA polymerase / ribosome biogenesis / response to heat / protein-containing complex assembly / intracellular iron ion homeostasis / protein dimerization activity / protein domain specific binding / DNA-binding transcription factor activity / response to antibiotic / nucleotide binding / magnesium ion binding / ATP hydrolysis activity / DNA binding / RNA binding / zinc ion binding / ATP binding / identical protein binding / membrane / cytosol / cytoplasm
Similarity search - Function
Transcription termination factor NusA, C-terminal duplication / Transcription termination factor NusA / Transcription factor NusA, N-terminal / KH domain, NusA-like / NusA, N-terminal domain superfamily / NusA N-terminal domain / NusA-like KH domain / Transcription termination/antitermination protein NusA, bacterial / Transcription termination factor Rho / Rho termination factor, N-terminal ...Transcription termination factor NusA, C-terminal duplication / Transcription termination factor NusA / Transcription factor NusA, N-terminal / KH domain, NusA-like / NusA, N-terminal domain superfamily / NusA N-terminal domain / NusA-like KH domain / Transcription termination/antitermination protein NusA, bacterial / Transcription termination factor Rho / Rho termination factor, N-terminal / Rho termination factor, RNA-binding domain / Transcription termination factor Rho, ATP binding domain / Rho termination factor, RNA-binding domain / Rho termination factor, N-terminal domain / Rho RNA-binding domain profile. / Rho termination factor, N-terminal domain / Rho termination factor, N-terminal domain superfamily / : / Transcription antitermination protein, NusG / Transcription antitermination protein, NusG, bacteria, conserved site / Transcription termination factor nusG signature. / Cold shock domain / NusG-like / Cold shock protein domain / Transcription termination factor nusG / NusG, N-terminal / In Spt5p, this domain may confer affinity for Spt4p. It possesses a RNP-like fold. / DNA repair Rad51/transcription factor NusA, alpha-helical / Type-1 KH domain profile. / NusG, N-terminal domain superfamily / Helix-hairpin-helix domain / S1 domain profile. / 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 / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / ATPase, F1/V1/A1 complex, alpha/beta subunit, nucleotide-binding domain / ATP synthase alpha/beta family, nucleotide-binding domain / S1 domain / 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 Rpb2, domain 2 / RNA polymerase Rpb2, domain 2 / RNA polymerase, RBP11-like subunit / 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 / K homology domain superfamily, prokaryotic type / K homology domain-like, alpha/beta / KOW (Kyprides, Ouzounis, Woese) motif. / Translation protein SH3-like domain superfamily / KOW motif / KOW / Ribosomal protein L2, domain 2 / 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
DNA / DNA (> 10) / RNA / RNA (> 10) / DNA-directed RNA polymerase subunit alpha / DNA-directed RNA polymerase subunit omega / DNA-directed RNA polymerase subunit beta' / DNA-directed RNA polymerase subunit beta / Transcription termination/antitermination protein NusA / Transcription termination/antitermination protein NusG / Transcription termination factor Rho
Similarity search - Component
Biological speciesEscherichia coli K-12 (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.7 Å
AuthorsHao, Z.T. / Kim, H.K. / Walz, T. / Nudler, E.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM126891 United States
CitationJournal: Mol Cell / Year: 2021
Title: Pre-termination Transcription Complex: Structure and Function.
Authors: Zhitai Hao / Vitaly Epshtein / Kelly H Kim / Sergey Proshkin / Vladimir Svetlov / Venu Kamarthapu / Binod Bharati / Alexander Mironov / Thomas Walz / Evgeny Nudler /
Abstract: Rho is a general transcription termination factor playing essential roles in RNA polymerase (RNAP) recycling, gene regulation, and genomic stability in most bacteria. Traditional models of ...Rho is a general transcription termination factor playing essential roles in RNA polymerase (RNAP) recycling, gene regulation, and genomic stability in most bacteria. Traditional models of transcription termination postulate that hexameric Rho loads onto RNA prior to contacting RNAP and then translocates along the transcript in pursuit of the moving RNAP to pull RNA from it. Here, we report the cryoelectron microscopy (cryo-EM) structures of two termination process intermediates. Prior to interacting with RNA, Rho forms a specific "pre-termination complex" (PTC) with RNAP and elongation factors NusA and NusG, which stabilize the PTC. RNA exiting RNAP interacts with NusA before entering the central channel of Rho from the distal C-terminal side of the ring. We map the principal interactions in the PTC and demonstrate their critical role in termination. Our results support a mechanism in which the formation of a persistent PTC is a prerequisite for termination.
History
DepositionJun 4, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 16, 2020Provider: repository / Type: Initial release
Revision 1.1Dec 23, 2020Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Feb 3, 2021Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.year
Revision 1.3Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
L: Transcription termination/antitermination protein NusG
N: DNA (29-MER)
T: DNA (29-MER)
R: RNA (18-MER)
W: DNA-directed RNA polymerase subunit omega
K: DNA-directed RNA polymerase subunit alpha
H: DNA-directed RNA polymerase subunit alpha
I: DNA-directed RNA polymerase subunit beta
J: DNA-directed RNA polymerase subunit beta'
G: Transcription termination/antitermination protein NusA
C: Transcription termination factor Rho
A: Transcription termination factor Rho
B: Transcription termination factor Rho
D: Transcription termination factor Rho
E: Transcription termination factor Rho
F: Transcription termination factor Rho
hetero molecules


Theoretical massNumber of molelcules
Total (without water)772,86919
Polymers772,71416
Non-polymers1553
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Transcription termination/antitermination protein ... , 2 types, 2 molecules LG

#1: Protein Transcription termination/antitermination protein NusG


Mass: 20560.523 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Strain: K-12 / Gene: nusG, b3982, JW3945 / Production host: Escherichia coli (E. coli) / References: UniProt: P0AFG0
#9: Protein Transcription termination/antitermination protein NusA / N utilization substance protein A / Transcription termination/antitermination L factor


Mass: 54932.684 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Strain: K-12 / Gene: nusA, b3169, JW3138 / Production host: Escherichia coli (E. coli) / References: UniProt: P0AFF6

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DNA chain , 2 types, 2 molecules NT

#2: DNA chain DNA (29-MER)


Mass: 9434.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: Non template strand DNA / Source: (synth.) Escherichia coli K-12 (bacteria)
#3: DNA chain DNA (29-MER)


Mass: 8813.646 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: template strand DNA / Source: (synth.) Escherichia coli K-12 (bacteria)

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

#5: 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) / Strain: K-12 / Gene: rpoZ, b3649, JW3624 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A800, DNA-directed RNA polymerase
#6: 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) / Strain: K-12 / Gene: rpoA, pez, phs, sez, b3295, JW3257 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A7Z4, DNA-directed RNA polymerase
#7: 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) / Strain: K-12
Gene: rpoB, groN, nitB, rif, ron, stl, stv, tabD, b3987, JW3950
Production host: Escherichia coli (E. coli) / References: UniProt: P0A8V2, DNA-directed RNA polymerase
#8: Protein DNA-directed RNA polymerase subunit beta' / RNAP subunit beta' / RNA polymerase subunit beta' / Transcriptase subunit beta'


Mass: 156504.969 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Strain: K-12 / Gene: rpoC, tabB, b3988, JW3951 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A8T7, DNA-directed RNA polymerase

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RNA chain / Protein , 2 types, 7 molecules RCABDEF

#10: Protein
Transcription termination factor Rho / ATP-dependent helicase Rho


Mass: 47070.168 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K-12 (bacteria) / Strain: K-12 / Gene: rho, nitA, psuA, rnsC, sbaA, tsu, b3783, JW3756 / Production host: Escherichia coli (E. coli)
References: UniProt: P0AG30, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#4: RNA chain RNA (18-MER)


Mass: 5859.580 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli K-12 (bacteria)

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Non-polymers , 2 types, 3 molecules

#11: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#12: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn

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Details

Has ligand of interestN

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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: E. coli Rho-dependent Transcription Pre-termination Complex
Type: COMPLEX / Entity ID: #1-#10 / Source: RECOMBINANT
Molecular weightValue: 0.726 MDa / Experimental value: NO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

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

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Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 7.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 57227 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00148084
ELECTRON MICROSCOPYf_angle_d0.36365152
ELECTRON MICROSCOPYf_dihedral_angle_d14.37918554
ELECTRON MICROSCOPYf_chiral_restr0.0387453
ELECTRON MICROSCOPYf_plane_restr0.0038294

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