6XIJ

Escherichia coli transcription-translation complex A (TTC-A) containing an 24 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.00 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: 10.1126/science.abb5317
  • Primary Citation of Related Structures:  
    6X7F, 6X7K, 6X6T, 6X9Q, 6XDR, 6XDQ, 6XGF, 6XIJ, 6XII, 6VU3

  • PubMed Abstract: 
  • In bacteria, transcription and translation are coupled processes, in which movement of RNA polymerase (RNAP) synthesizing mRNA is coordinated with movement of the first ribosome translating mRNA. Coupling is modulated by the transcription factors Nus ...

    In bacteria, transcription and translation are coupled processes, in which movement of RNA polymerase (RNAP) synthesizing mRNA is coordinated with movement of the first ribosome translating mRNA. Coupling is modulated by the transcription factors NusG-which is thought to bridge RNAP and ribosome-and NusA. Here, we report cryo-EM 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. minsu@umich.edu ebright@waksman.rutgers.edu.



Macromolecules

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Entity ID: 1
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50S ribosomal protein L210103Escherichia coliMutation(s): 0 
Gene Names: rplU
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Entity ID: 2
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50S ribosomal protein L221110Escherichia coliMutation(s): 0 
Gene Names: rplV
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Entity ID: 3
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50S ribosomal protein L232100Escherichia coliMutation(s): 0 
Gene Names: rplW
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Entity ID: 4
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50S ribosomal protein L243104Escherichia coliMutation(s): 0 
Gene Names: rplX
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Entity ID: 5
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50S ribosomal protein L25494Escherichia coliMutation(s): 0 
Gene Names: rplY
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Entity ID: 9
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50S ribosomal protein L109165Escherichia coliMutation(s): 0 
Gene Names: rplJ
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Entity ID: 11
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DNA-directed RNA polymerase subunit betaAA1342Escherichia coliMutation(s): 0 
Gene Names: rpoB
EC: 2.7.7.6
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Transcription termination/antitermination protein NusGAB181Escherichia coliMutation(s): 0 
Gene Names: nusG
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Entity ID: 13
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DNA-directed RNA polymerase subunit alphaACAD329Escherichia coliMutation(s): 0 
Gene Names: rpoA
EC: 2.7.7.6
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Entity ID: 14
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DNA-directed RNA polymerase subunit beta'AE1407Escherichia coliMutation(s): 0 
Gene Names: rpoCBvCmsKKP036_03580G5696_22040
EC: 2.7.7.6
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Entity ID: 15
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30S ribosomal protein S18C75Escherichia coliMutation(s): 0 
Gene Names: rpsR
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Entity ID: 17
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30S ribosomal protein S20E87Escherichia coliMutation(s): 0 
Gene Names: rpsT
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30S ribosomal protein S21F71Escherichia coliMutation(s): 0 
Gene Names: rpsU
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Entity ID: 19
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30S ribosomal protein S2G241Escherichia coliMutation(s): 0 
Gene Names: rpsB
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Entity ID: 20
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30S ribosomal protein S1H557Escherichia coliMutation(s): 0 
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30S ribosomal protein S3I233Escherichia coliMutation(s): 0 
Gene Names: rpsC
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30S ribosomal protein S4J206Escherichia coliMutation(s): 0 
Gene Names: rpsD
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30S ribosomal protein S5K167Escherichia coliMutation(s): 0 
Gene Names: rpsE
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30S ribosomal protein S6L135Escherichia coliMutation(s): 0 
Gene Names: rpsF
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30S ribosomal protein S7M179Escherichia coliMutation(s): 0 
Gene Names: rpsGGHR40_06850NCTC12650_00665
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Entity ID: 26
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30S ribosomal protein S8N130Escherichia coliMutation(s): 0 
Gene Names: rpsH
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30S ribosomal protein S9O130Escherichia coliMutation(s): 0 
Gene Names: rpsI
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Entity ID: 28
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30S ribosomal protein S10P103Escherichia coliMutation(s): 0 
Gene Names: rpsJ
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Entity ID: 29
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30S ribosomal protein S11Q129Escherichia coliMutation(s): 0 
Gene Names: rpsK
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Entity ID: 30
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30S ribosomal protein S12R124Escherichia coliMutation(s): 0 
Gene Names: rpsL
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Entity ID: 31
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30S ribosomal protein S14S101Escherichia coliMutation(s): 0 
Gene Names: rpsN
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30S ribosomal protein S15T89Escherichia coliMutation(s): 0 
Gene Names: rpsO
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Entity ID: 33
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30S ribosomal protein S16U82Escherichia coliMutation(s): 0 
Gene Names: rpsP
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Entity ID: 34
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30S ribosomal protein S17V84Escherichia coliMutation(s): 0 
Gene Names: rpsQ
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Entity ID: 35
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30S ribosomal protein S19W92Escherichia coliMutation(s): 0 
Gene Names: rpsS
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Entity ID: 36
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30S ribosomal protein S13X118Escherichia coliMutation(s): 0 
Gene Names: rpsM
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Entity ID: 37
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50S ribosomal protein L11Y142Escherichia coliMutation(s): 0 
Gene Names: rplK
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Entity ID: 38
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50S ribosomal protein L7/L12Z121Escherichia coli 909945-2Mutation(s): 0 
Gene Names: rplLHMPREF1620_01310
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Entity ID: 40
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50S ribosomal protein L27b85Escherichia coliMutation(s): 0 
Gene Names: rpmA
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Entity ID: 41
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50S ribosomal protein L28c78Escherichia coliMutation(s): 0 
Gene Names: rpmB
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Entity ID: 43
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50S ribosomal protein L29e63Escherichia coliMutation(s): 0 
Gene Names: rpmC
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50S ribosomal protein L30f59Escherichia coliMutation(s): 0 
Gene Names: rpmD
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Entity ID: 45
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50S ribosomal protein L31g70Escherichia coliMutation(s): 0 
Gene Names: rpmE
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Entity ID: 46
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50S ribosomal protein L2h273Escherichia coliMutation(s): 0 
Gene Names: rplB
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50S ribosomal protein L32i57Escherichia coliMutation(s): 0 
Gene Names: rpmF
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Entity ID: 48
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50S ribosomal protein L3j209Escherichia coliMutation(s): 0 
Gene Names: rplC
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Entity ID: 49
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50S ribosomal protein L33k55Escherichia coliMutation(s): 0 
Gene Names: rpmG
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Entity ID: 50
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50S ribosomal protein L4l201Escherichia coliMutation(s): 0 
Gene Names: rplD
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Entity ID: 51
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50S ribosomal protein L34m46Escherichia coliMutation(s): 0 
Gene Names: rpmH
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Entity ID: 52
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50S ribosomal protein L5n179Escherichia coliMutation(s): 0 
Gene Names: rplE
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Entity ID: 53
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50S ribosomal protein L35o65Escherichia coliMutation(s): 0 
Gene Names: rpmI
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Entity ID: 54
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50S ribosomal protein L6p177Escherichia coliMutation(s): 0 
Gene Names: rplF
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Entity ID: 55
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50S ribosomal protein L36q38Escherichia coliMutation(s): 0 
Gene Names: rpmJ
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Entity ID: 56
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50S ribosomal protein L9r149Escherichia coliMutation(s): 0 
Gene Names: rplI
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Entity ID: 57
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50S ribosomal protein L13s142Escherichia coliMutation(s): 0 
Gene Names: rplM
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Entity ID: 58
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50S ribosomal protein L14t123Escherichia coliMutation(s): 0 
Gene Names: rplN
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Entity ID: 59
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50S ribosomal protein L15u144Escherichia coliMutation(s): 0 
Gene Names: 
rplOA8C65_19395A9R57_24660ACU57_21045AM464_09135AUQ13_22145BANRA_01932BANRA_03684BHS87_18545BJJ90_02210BMA87_18510BON75_18850BON98_13310BUE81_25610BvCms2454_01416BvCmsHHP001_00334BvCmsHHP019_04131BvCmsHHP056_02703BvCmsKSP026_02554BvCmsSINP011_02480BW690_10710BZL31_22885C5F72_02595C5F73_02860C5N07_23575C9E25_20065C9Z39_20710CA593_09735CG692_20270CI693_13520CI694_01990CIG45_22410D0X26_24495D2185_22985D3821_17755D3O91_20305D3Y67_24390D4638_19455D4718_17880D9C99_17930D9D20_21995D9D44_22490D9G29_15635D9G69_20945D9H68_17710D9J52_19090D9Z28_15390DAH37_14685DBQ99_03415DJ503_19770DL326_22310DNC98_19095DT034_22410DTL43_21000E2119_19640E2134_21880E2135_06185E4A44_21305E4K51_21490E4K55_21420E4K60_18985E4K61_20025E5P22_10480E5P28_20875EA213_19860EAI42_04990EAI52_16365EC1094V2_354EC3234A_55c00230EC3426_04459ECTO6_00449ED307_17010EEP23_17135EG808_17075EI021_21030EI028_20740EI032_18995EI041_20035EIZ93_12470EL75_0396EL79_0415EL80_0407ELT20_19170EPT01_19765ERS085365_03907ERS085416_03881ERS139211_03685ERS150873_04051EXX71_21335EYD11_02080F1E19_19655F9040_18095FRV13_20015FV293_22465FWK02_06270G5632_17770G5688_20025GHR40_07050GKF39_20550GKF74_18130GKF86_20070GKF89_18470GP671_20580GP689_20785GP954_00945GP979_02005GQE33_22230GQE34_14255GQE64_20420GQM17_19915GRW05_09060GRW27_21285GRW42_19350GRW57_03540GRW80_20585GRW81_21150NCTC10963_00456NCTC11022_03475NCTC11126_02772NCTC12650_00710NCTC13216_01351NCTC9045_00567NCTC9062_02686NCTC9117_00757NCTC9706_02738PGD_00585RK56_021420SAMEA3472047_03862SAMEA3472080_04748SAMEA3484427_04887SAMEA3484429_04875SAMEA3752559_00346SAMEA3753300_02227

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Entity ID: 60
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L16v136Escherichia coliMutation(s): 0 
Gene Names: rplP
Find proteins for P0ADY7 (Escherichia coli (strain K12))
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Entity ID: 61
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L17w127Escherichia coliMutation(s): 0 
Gene Names: rplQ
Find proteins for D6I1Y5 (Escherichia coli B088)
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Entity ID: 62
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L18x117Escherichia coliMutation(s): 0 
Gene Names: rplR
Find proteins for D7Z9H1 (Escherichia coli MS 69-1)
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Entity ID: 63
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L19y115Escherichia coliMutation(s): 0 
Gene Names: rplS
Find proteins for D7ZKU3 (Escherichia coli MS 69-1)
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Entity ID: 64
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L20z118Escherichia coliMutation(s): 0 
Gene Names: rplT
Find proteins for L3CCT0 (Escherichia coli KTE193)
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Entity ID: 6
MoleculeChainsLengthOrganismImage
NT DNA536synthetic construct
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Entity ID: 7
MoleculeChainsLengthOrganismImage
T DNA636synthetic construct
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Entity ID: 8
MoleculeChainsLengthOrganismImage
mRNA with 24 nt long spacer733synthetic construct
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Entity ID: 10
MoleculeChainsLengthOrganismImage
E-site and P-site tRNA (fMet)A, B76Escherichia coli
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Entity ID: 16
MoleculeChainsLengthOrganismImage
16S rRNAD1542Escherichia coli
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Entity ID: 39
MoleculeChainsLengthOrganismImage
23S rRNAa2904Escherichia coli
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Entity ID: 42
MoleculeChainsLengthOrganismImage
5S rRNAd120Escherichia coli
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
AE
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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AE
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



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 

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2020-09-16
    Changes: Database references
  • Version 1.2: 2020-09-23
    Changes: Database references