4V7B

Visualization of two tRNAs trapped in transit during EF-G-mediated translocation


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Visualization of two transfer RNAs trapped in transit during elongation factor G-mediated translocation.

Ramrath, D.J.Lancaster, L.Sprink, T.Mielke, T.Loerke, J.Noller, H.F.Spahn, C.M.

(2013) Proc.Natl.Acad.Sci.USA 110: 20964-20969

  • DOI: 10.1073/pnas.1320387110
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • During protein synthesis, coupled translocation of messenger RNAs (mRNA) and transfer RNAs (tRNA) through the ribosome takes place following formation of each peptide bond. The reaction is facilitated by large-scale conformational changes within the ...

    During protein synthesis, coupled translocation of messenger RNAs (mRNA) and transfer RNAs (tRNA) through the ribosome takes place following formation of each peptide bond. The reaction is facilitated by large-scale conformational changes within the ribosomal complex and catalyzed by elongtion factor G (EF-G). Previous structural analysis of the interaction of EF-G with the ribosome used either model complexes containing no tRNA or only a single tRNA, or complexes where EF-G was directly bound to ribosomes in the posttranslocational state. Here, we present a multiparticle cryo-EM reconstruction of a translocation intermediate containing two tRNAs trapped in transit, bound in chimeric intrasubunit ap/P and pe/E hybrid states. The downstream ap/P-tRNA is contacted by domain IV of EF-G and P-site elements within the 30S subunit body, whereas the upstream pe/E-tRNA maintains tight interactions with P-site elements of the swiveled 30S head. Remarkably, a tight compaction of the tRNA pair can be seen in this state. The translocational intermediate presented here represents a previously missing link in understanding the mechanism of translocation, revealing that the ribosome uses two distinct molecular ratchets, involving both intra- and intersubunit rotational movements, to drive the synchronous movement of tRNAs and mRNA.


    Organizational Affiliation

    Institut für Medizinische Physik und Biophysik, Charité-Universitätsmedizin Berlin, 10117-Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S2
AB
241Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsB
Find proteins for P0A7V0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S3
AC
233Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsC
Find proteins for P0A7V3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V3
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S4
AD
206Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsD (ramA)
Find proteins for P0A7V8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V8
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S5
AE
167Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsE (spc)
Find proteins for P0A7W1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W1
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S6
AF
135Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsF
Find proteins for P02358 (Escherichia coli (strain K12))
Go to UniProtKB:  P02358
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S7
AG
179Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsG
Find proteins for P02359 (Escherichia coli (strain K12))
Go to UniProtKB:  P02359
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S8
AH
130Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsH
Find proteins for P0A7W7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W7
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S9
AI
130Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsI
Find proteins for P0A7X3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7X3
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S10
AJ
103Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsJ (nusE)
Find proteins for P0A7R5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R5
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S11
AK
129Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsK
Find proteins for P0A7R9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R9
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S12
AL
124Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsL (strA)
Find proteins for P0A7S3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S3
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S13
AM
118Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsM
Find proteins for P0A7S9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S9
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S14
AN
101Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsN
Find proteins for P0AG59 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG59
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S15
AO
89Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsO (secC)
Find proteins for P0ADZ4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADZ4
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S16
AP
82Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsP
Find proteins for P0A7T3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7T3
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S17
AQ
84Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsQ (neaA)
Find proteins for P0AG63 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG63
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S18
AR
75Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsR
Find proteins for P0A7T7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7T7
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S19
AS
92Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsS
Find proteins for P0A7U3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U3
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S20
AT
87Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsT
Find proteins for P0A7U7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U7
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S21
AU
71Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsU
Find proteins for P68679 (Escherichia coli (strain K12))
Go to UniProtKB:  P68679
Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
Elongation Factor G
AY
704Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: fusA (far, fus)
Find proteins for P0A6M8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6M8
Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L2
BC
273Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplB
Find proteins for P60422 (Escherichia coli (strain K12))
Go to UniProtKB:  P60422
Entity ID: 29
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L3
BD
209Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplC
Find proteins for P60438 (Escherichia coli (strain K12))
Go to UniProtKB:  P60438
Entity ID: 30
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L4
BE
201Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplD (eryA)
Find proteins for P60723 (Escherichia coli (strain K12))
Go to UniProtKB:  P60723
Entity ID: 31
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L5
BF
179Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplE
Find proteins for P62399 (Escherichia coli (strain K12))
Go to UniProtKB:  P62399
Entity ID: 32
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L6
BG
177Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplF
Find proteins for P0AG55 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG55
Entity ID: 33
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L9
BH
50Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplI
Find proteins for P0A7R1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R1
Entity ID: 34
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L11
BI
142Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplK (relC)
Find proteins for P0A7J7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7J7
Entity ID: 35
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L13
BJ
142Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplM
Find proteins for P0AA10 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AA10
Entity ID: 36
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L14
BK
123Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplN
Find proteins for P0ADY3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADY3
Entity ID: 37
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L15
BL
144Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplO
Find proteins for P02413 (Escherichia coli (strain K12))
Go to UniProtKB:  P02413
Entity ID: 38
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L16
BM
136Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplP
Find proteins for P0ADY7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADY7
Entity ID: 39
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L17
BN
127Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplQ
Find proteins for P0AG44 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG44
Entity ID: 40
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L18
BO
117Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplR
Find proteins for P0C018 (Escherichia coli (strain K12))
Go to UniProtKB:  P0C018
Entity ID: 41
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L19
BP
115Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplS
Find proteins for P0A7K6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7K6
Entity ID: 42
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L20
BQ
118Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplT (pdzA)
Find proteins for P0A7L3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7L3
Entity ID: 43
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L21
BR
103Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplU
Find proteins for P0AG48 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG48
Entity ID: 44
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L22
BS
110Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplV (eryB)
Find proteins for P61175 (Escherichia coli (strain K12))
Go to UniProtKB:  P61175
Entity ID: 45
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L23
BT
100Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplW
Find proteins for P0ADZ0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADZ0
Entity ID: 46
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L24
BU
104Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplX
Find proteins for P60624 (Escherichia coli (strain K12))
Go to UniProtKB:  P60624
Entity ID: 47
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L25
BV
94Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplY
Find proteins for P68919 (Escherichia coli (strain K12))
Go to UniProtKB:  P68919
Entity ID: 48
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L27
BW
85Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmA
Find proteins for P0A7L8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7L8
Entity ID: 49
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L28
BX
78Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmB
Find proteins for P0A7M2 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7M2
Entity ID: 50
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L29
BY
63Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmC
Find proteins for P0A7M6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7M6
Entity ID: 51
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L30
BZ
59Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmD
Find proteins for P0AG51 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG51
Entity ID: 52
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L32
B0
57Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmF
Find proteins for P0A7N4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7N4
Entity ID: 53
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L33
B1
55Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmG
Find proteins for P0A7N9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7N9
Entity ID: 54
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L34
B2
46Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmH (rimA, ssaF)
Find proteins for P0A7P5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7P5
Entity ID: 55
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L35
B3
65Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmI
Find proteins for P0A7Q1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Q1
Entity ID: 56
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L36
B4
38Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmJ
Find proteins for P0A7Q6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Q6
Entity ID: 57
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L10
B5
165Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplJ
Find proteins for P0A7J3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7J3
Entity ID: 58
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L7/L12
B6
121Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplL
Find proteins for P0A7K2 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7K2
Entity ID: 1
MoleculeChainsLengthOrganism
16S ribosomal RNAAA1542Escherichia coli K-12
Entity ID: 22
MoleculeChainsLengthOrganism
modified formyl-methionine specific initiator transfer RNAAV77Escherichia coli K-12
Entity ID: 23
MoleculeChainsLengthOrganism
formyl-methionine specific initiator transfer RNAAW77Escherichia coli K-12
Entity ID: 24
MoleculeChainsLengthOrganism
messenger RNAAX19Escherichia coli K-12
Entity ID: 26
MoleculeChainsLengthOrganism
5S ribosomal RNABB120Escherichia coli K-12
Entity ID: 28
MoleculeChainsLengthOrganism
23S ribosomal RNABA2904Escherichia coli K-12
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download SDF File 
Download CCD File 
AY
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
FUA
Query on FUA

Download SDF File 
Download CCD File 
AY
FUSIDIC ACID
C31 H48 O6
IECPWNUMDGFDKC-MZJAQBGESA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
5MU
Query on 5MU
AV
RNA LINKINGC10 H15 N2 O9 PU
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2014-12-10
    Type: Other
  • Version 1.2: 2015-04-15
    Type: Other
  • Version 1.3: 2018-07-18
    Type: Data collection