5MY1

E. coli expressome


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Architecture of a transcribing-translating expressome.

Kohler, R.Mooney, R.A.Mills, D.J.Landick, R.Cramer, P.

(2017) Science 356: 194-197

  • DOI: https://doi.org/10.1126/science.aal3059
  • Primary Citation of Related Structures:  
    5MY1

  • PubMed Abstract: 

    DNA transcription is functionally coupled to messenger RNA (mRNA) translation in bacteria, but how this is achieved remains unclear. Here we show that RNA polymerase (RNAP) and the ribosome of Escherichia coli can form a defined transcribing and translating "expressome" complex. The cryo-electron microscopic structure of the expressome reveals continuous protection of ~30 nucleotides of mRNA extending from the RNAP active center to the ribosome decoding center. The RNAP-ribosome interface includes the RNAP subunit α carboxyl-terminal domain, which is required for RNAP-ribosome interaction in vitro and for pronounced cell growth defects upon translation inhibition in vivo, consistent with its function in transcription-translation coupling. The expressome structure can only form during transcription elongation and explains how translation can prevent transcriptional pausing, backtracking, and termination.


  • Organizational Affiliation

    Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Am Fassberg 11, 37077 Göttingen, Germany.


Macromolecules

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S3B [auth C]232Escherichia coli K-12Mutation(s): 0 
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S4C [auth D]205Escherichia coli K-12Mutation(s): 0 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S5D [auth E]166Escherichia coli K-12Mutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S6E [auth F]135Escherichia coli K-12Mutation(s): 0 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S7F [auth G]178Escherichia coli K-12Mutation(s): 0 
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S8G [auth H]129Escherichia coli K-12Mutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S9H [auth I]129Escherichia coli K-12Mutation(s): 0 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S10I [auth J]103Escherichia coli K-12Mutation(s): 0 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S11J [auth K]128Escherichia coli K-12Mutation(s): 0 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S12K [auth L]123Escherichia coli K-12Mutation(s): 0 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S13L [auth M]117Escherichia coli K-12Mutation(s): 0 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S14M [auth N]100Escherichia coli K-12Mutation(s): 0 
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S15N [auth O]89Escherichia coli K-12Mutation(s): 0 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S16O [auth P]82Escherichia coli K-12Mutation(s): 0 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S17P [auth Q]83Escherichia coli K-12Mutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S18Q [auth R]74Escherichia coli K-12Mutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S19R [auth S]91Escherichia coli K-12Mutation(s): 0 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S20S [auth T]86Escherichia coli K-12Mutation(s): 0 
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S2T [auth B]240Escherichia coli K-12Mutation(s): 0 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S2171Escherichia coli K-12Mutation(s): 0 
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit alpha
V, W
329Escherichia coli K-12Mutation(s): 0 
Gene Names: rpoApezphssezb3295JW3257
EC: 2.7.7.6
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit beta1,342Escherichia coli K-12Mutation(s): 0 
Gene Names: rpoBECDH10B_4175
EC: 2.7.7.6
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit beta'1,407Escherichia coli K-12Mutation(s): 0 
Gene Names: rpoCtabBb3988JW3951
EC: 2.7.7.6
UniProt
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit omega91Escherichia coli K-12Mutation(s): 0 
Gene Names: rpoZECDH10B_3831
EC: 2.7.7.6
UniProt
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Entity ID: 1
MoleculeChains LengthOrganismImage
16S ribosomal RNA1,542Escherichia coli K-12
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Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
AA [auth Y]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION1.4

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-26
    Type: Initial release
  • Version 1.1: 2017-08-30
    Changes: Data collection
  • Version 1.2: 2018-05-02
    Changes: Advisory, Data collection, Database references
  • Version 1.3: 2018-10-24
    Changes: Advisory, Data collection, Derived calculations
  • Version 1.4: 2024-05-15
    Changes: Data collection, Database references