6VZ7

Escherichia coli transcription-translation complex C1 (TTC-C1) containing a 27 nt long mRNA spacer, NusG, and fMet-tRNAs at P-site and E-site

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Structural basis of transcription-translation coupling.

Wang, C., Molodtsov, V., Firlar, E., Kaelber, J.T., Blaha, G., Su, M., Ebright, R.H.

(2020) Science 369: 1359-1365

  • DOI: https://doi.org/10.1126/science.abb5317
  • Primary Citation of Related Structures:  
    6VU3, 6VYQ, 6VYR, 6VYS, 6VYT, 6VYU, 6VYW, 6VYX, 6VYY, 6VYZ, 6VZ2, 6VZ3, 6VZ5, 6VZ7, 6VZJ, 6X6T, 6X7F, 6X7K, 6X9Q, 6XDQ, 6XDR, 6XGF, 6XII, 6XIJ

  • PubMed Abstract: 

    In bacteria, transcription and translation are coupled processes in which the movement of RNA polymerase (RNAP)-synthesizing messenger RNA (mRNA) is coordinated with the movement of the first ribosome-translating mRNA. Coupling is modulated by the transcription factors NusG (which is thought to bridge RNAP and the ribosome) and NusA. Here, we report cryo-electron microscopy structures of Escherichia coli transcription-translation complexes (TTCs) containing different-length mRNA spacers between RNAP and the ribosome active-center P site. Structures of TTCs containing short spacers show a state incompatible with NusG bridging and NusA binding (TTC-A, previously termed "expressome"). Structures of TTCs containing longer spacers reveal a new state compatible with NusG bridging and NusA binding (TTC-B) and reveal how NusG bridges and NusA binds. We propose that TTC-B mediates NusG- and NusA-dependent transcription-translation coupling.

    • Organizational Affiliation: 

    Waksman Institute and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L21A [auth 0]103Escherichia coliMutation(s): 0 
Gene Names: rplU
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L22B [auth 1]110Escherichia coliMutation(s): 0 
Gene Names: rplV
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L23C [auth 2]94Escherichia coliMutation(s): 0 
Gene Names: rplW
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L24D [auth 3]103Escherichia coliMutation(s): 0 
Gene Names: rplX
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L25E [auth 4]94Escherichia coliMutation(s): 0 
Gene Names: rplY
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit betaJ [auth AA]1,341Escherichia coliMutation(s): 0 
Gene Names: rpoB
EC: 2.7.7.6
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription termination/antitermination protein NusGK [auth AB]112Escherichia coliMutation(s): 0 
Gene Names: nusG
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit alphaL [auth AC],
M [auth AD]		230Escherichia coliMutation(s): 0 
Gene Names: rpoA
EC: 2.7.7.6
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunitN [auth AE]1,358Escherichia coliMutation(s): 0 
Gene Names: rpoC
EC: 2.7.7.6
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit omegaO [auth AF]83Escherichia coliMutation(s): 0 
Gene Names: rpoZ
EC: 2.7.7.6
UniProt
Find proteins for A0A1X3IVJ5 (Escherichia coli TA447)
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S18Q [auth C]66Escherichia coliMutation(s): 0 
Gene Names: rpsR
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S20S [auth E]86Escherichia coliMutation(s): 0 
Gene Names: rpsT
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S21T [auth F]70Escherichia coliMutation(s): 0 
Gene Names: rpsU
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S2U [auth G]225Escherichia coliMutation(s): 0 
Gene Names: rpsB
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S1V [auth H]557Escherichia coliMutation(s): 0 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S3W [auth I]208Escherichia coliMutation(s): 0 
Gene Names: rpsC
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S4X [auth J]205Escherichia coliMutation(s): 0 
Gene Names: rpsD
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S5Y [auth K]156Escherichia coliMutation(s): 0 
Gene Names: rpsE
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S6Z [auth L]104Escherichia coliMutation(s): 0 
Gene Names: rpsF
UniProt
Find proteins for A0A376ZL25 (Escherichia coli)
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S7AA [auth M]151Escherichia coliMutation(s): 0 
Gene Names: rpsG
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Entity ID: 26
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S8BA [auth N]129Escherichia coliMutation(s): 0 
Gene Names: rpsH
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Entity ID: 27
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S9CA [auth O]127Escherichia coliMutation(s): 0 
Gene Names: rpsI
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Entity ID: 28
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S10DA [auth P]99Escherichia coliMutation(s): 0 
Gene Names: rpsJ
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Entity ID: 29
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S11EA [auth Q]117Escherichia coliMutation(s): 0 
Gene Names: rpsK
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Entity ID: 30
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S12FA [auth R]123Escherichia coliMutation(s): 0 
Gene Names: rpsL
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Entity ID: 31
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S14GA [auth S]100Escherichia coliMutation(s): 0 
Gene Names: rpsN
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Entity ID: 32
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S15HA [auth T]88Escherichia coliMutation(s): 0 
Gene Names: rpsO
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Entity ID: 33
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S16IA [auth U]82Escherichia coliMutation(s): 0 
Gene Names: rpsP
UniProt
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Entity ID: 34
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S17JA [auth V]80Escherichia coliMutation(s): 0 
Gene Names: rpsQ
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Entity ID: 35
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S19KA [auth W]83Escherichia coliMutation(s): 0 
Gene Names: rpsS
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Entity ID: 36
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S13LA [auth X]116Escherichia coliMutation(s): 0 
Gene Names: rpsM
UniProt
Find proteins for A0A0H3ML81 (Escherichia coli O7:K1 (strain IAI39 / ExPEC))
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Entity ID: 39
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L27OA [auth b]76Escherichia coliMutation(s): 0 
Gene Names: rpmA
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Entity ID: 40
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L28PA [auth c]77Escherichia coliMutation(s): 0 
Gene Names: rpmB
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Entity ID: 42
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L29RA [auth e]62Escherichia coliMutation(s): 0 
Gene Names: rpmC
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Entity ID: 43
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L30SA [auth f]58Escherichia coliMutation(s): 0 
Gene Names: rpmD
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Entity ID: 44
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L31TA [auth g]66Escherichia coliMutation(s): 0 
Gene Names: rpmE
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Entity ID: 45
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L2UA [auth h]271Escherichia coliMutation(s): 0 
Gene Names: rplB
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Entity ID: 46
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L32VA [auth i]56Escherichia coliMutation(s): 0 
Gene Names: rpmF
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Entity ID: 47
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L3WA [auth j]209Escherichia coliMutation(s): 0 
Gene Names: rplC
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Entity ID: 48
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L33XA [auth k]52Escherichia coliMutation(s): 0 
Gene Names: rpmG
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Entity ID: 49
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L4YA [auth l]201Escherichia coliMutation(s): 0 
Gene Names: rplD
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Entity ID: 50
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L34ZA [auth m]46Escherichia coliMutation(s): 0 
Gene Names: rpmH
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Entity ID: 51
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L5AB [auth n]177Escherichia coliMutation(s): 0 
Gene Names: rplE
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Entity ID: 52
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L35BB [auth o]64Escherichia coliMutation(s): 0 
Gene Names: rpmI
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Entity ID: 53
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L6CB [auth p]175Escherichia coliMutation(s): 0 
Gene Names: rplF
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Entity ID: 54
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L36DB [auth q]38Escherichia coliMutation(s): 0 
Gene Names: rpmJ
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Entity ID: 55
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L9EB [auth r]149Escherichia coliMutation(s): 0 
Gene Names: rplI
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Entity ID: 56
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L13FB [auth s]142Escherichia coliMutation(s): 0 
Gene Names: rplM
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Entity ID: 57
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L14GB [auth t]123Escherichia coliMutation(s): 0 
Gene Names: rplN
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Entity ID: 58
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L15HB [auth u]144Escherichia coliMutation(s): 0 
Gene Names: rplO
UniProt
Find proteins for A0A037Y8L6 (Escherichia coli)
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Entity ID: 59
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L16IB [auth v]136Escherichia coliMutation(s): 0 
Gene Names: rplP
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Entity ID: 60
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L17JB [auth w]119Escherichia coliMutation(s): 0 
Gene Names: rplQ
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Entity ID: 61
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L18KB [auth x]116Escherichia coliMutation(s): 0 
Gene Names: rplR
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Entity ID: 62
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L19LB [auth y]114Escherichia coliMutation(s): 0 
Gene Names: rplS
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Entity ID: 63
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L20MB [auth z]117Escherichia coliMutation(s): 0 
Gene Names: rplT
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Entity ID: 6
MoleculeChains LengthOrganismImage
NT DNAF [auth 5]27synthetic construct
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Entity ID: 7
MoleculeChains LengthOrganismImage
T DNAG [auth 6]27synthetic construct
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Entity ID: 8
MoleculeChains LengthOrganismImage
mRNA with 27 nt long spacerH [auth 7]16synthetic construct
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Entity ID: 9
MoleculeChains LengthOrganismImage
E-site and P-site tRNA (fMet)I [auth A],
P [auth B]		76Escherichia coli
Sequence Annotations
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Entity ID: 16
MoleculeChains LengthOrganismImage
16S rRNAR [auth D]1,542Escherichia coli
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Entity ID: 37
MoleculeChains LengthOrganismImage
mRNA in the ribosomal RNA entrance poreMA [auth Y]3synthetic construct
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Entity ID: 38
MoleculeChains LengthOrganismImage
23S rRNANA [auth a]2,903Escherichia coli
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Entity ID: 41
MoleculeChains LengthOrganismImage
5S rRNAQA [auth d]120Escherichia coli
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2020-09-23
    Changes: Database references
  • Version 1.2: 2024-10-16
    Changes: Data collection, Database references, Structure summary