6O9J

70S Elongation Competent Ribosome


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Late steps in bacterial translation initiation visualized using time-resolved cryo-EM.

Kaledhonkar, S.Fu, Z.Caban, K.Li, W.Chen, B.Sun, M.Gonzalez Jr., R.L.Frank, J.

(2019) Nature 570: 400-404

  • DOI: 10.1038/s41586-019-1249-5
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The initiation of bacterial translation involves the tightly regulated joining of the 50S ribosomal subunit to an initiator transfer RNA (fMet-tRNA <sup>fMet </sup>)-containing 30S ribosomal initiation complex to form a 70S initiation complex, which ...

    The initiation of bacterial translation involves the tightly regulated joining of the 50S ribosomal subunit to an initiator transfer RNA (fMet-tRNA fMet )-containing 30S ribosomal initiation complex to form a 70S initiation complex, which subsequently matures into a 70S elongation-competent complex. Rapid and accurate formation of the 70S initiation complex is promoted by initiation factors, which must dissociate from the 30S initiation complex before the resulting 70S elongation-competent complex can begin the elongation of translation 1 . Although comparisons of the structures of the 30S 2-5 and 70S 4,6-8 initiation complexes have revealed that the ribosome, initiation factors and fMet-tRNA fMet can acquire different conformations in these complexes, the timing of conformational changes during formation of the 70S initiation complex, the structures of any intermediates formed during these rearrangements, and the contributions that these dynamics might make to the mechanism and regulation of initiation remain unknown. Moreover, the absence of a structure of the 70S elongation-competent complex formed via an initiation-factor-catalysed reaction has precluded an understanding of the rearrangements to the ribosome, initiation factors and fMet-tRNA fMet that occur during maturation of a 70S initiation complex into a 70S elongation-competent complex. Here, using time-resolved cryogenic electron microscopy 9 , we report the near-atomic-resolution view of how a time-ordered series of conformational changes drive and regulate subunit joining, initiation factor dissociation and fMet-tRNA fMet positioning during formation of the 70S elongation-competent complex. Our results demonstrate the power of time-resolved cryogenic electron microscopy to determine how a time-ordered series of conformational changes contribute to the mechanism and regulation of one of the most fundamental processes in biology.


    Organizational Affiliation

    Integrated Program in Cellular, Molecular and Biophysical Studies, Columbia University, College of Physicians and Surgeons, New York, NY, USA.,Department of Biochemistry & Molecular Biophysics, Columbia University, New York, NY, USA.,Department of Chemistry, Columbia University, New York, NY, USA. rlg2118@columbia.edu.,Department of Chemistry, Columbia University, New York, NY, USA.,Department of Biological Sciences, Columbia University, New York, NY, USA.,Department of Biochemistry & Molecular Biophysics, Columbia University, New York, NY, USA. jf2192@cumc.columbia.edu.,Department of Biological Sciences, Columbia University, New York, NY, USA. jf2192@cumc.columbia.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L25
V
94Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplY
Find proteins for P68919 (Escherichia coli (strain K12))
Go to UniProtKB:  P68919
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L2
C
267Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplB
Find proteins for P60422 (Escherichia coli (strain K12))
Go to UniProtKB:  P60422
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L3
D
209Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplC
Find proteins for P60438 (Escherichia coli (strain K12))
Go to UniProtKB:  P60438
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L4
E
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: 7
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L5
F
178Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplE
Find proteins for P62399 (Escherichia coli (strain K12))
Go to UniProtKB:  P62399
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L6
G
176Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplF
Find proteins for P0AG55 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG55
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L9
H
149Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplI
Find proteins for P0A7R1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R1
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L13
J
140Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplM
Find proteins for P0AA10 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AA10
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L14
K
121Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplN
Find proteins for P0ADY3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADY3
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L15
L
144Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplO
Find proteins for P02413 (Escherichia coli (strain K12))
Go to UniProtKB:  P02413
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L16
M
136Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplP
Find proteins for P0ADY7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADY7
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L17
N
127Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplQ
Find proteins for P0AG44 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG44
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L18
O
117Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplR
Find proteins for P0C018 (Escherichia coli (strain K12))
Go to UniProtKB:  P0C018
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L19
P
114Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplS
Find proteins for P0A7K6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7K6
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L20
Q
117Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplT (pdzA)
Find proteins for P0A7L3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7L3
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L21
R
103Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplU
Find proteins for P0AG48 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG48
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L22
S
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: 20
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L23
T
99Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplW
Find proteins for P0ADZ0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADZ0
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L24
U
102Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplX
Find proteins for P60624 (Escherichia coli (strain K12))
Go to UniProtKB:  P60624
Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L27
W
84Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmA
Find proteins for P0A7L8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7L8
Entity ID: 23
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L29
X
63Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmC
Find proteins for P0A7M6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7M6
Entity ID: 24
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L30
Y
58Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmD
Find proteins for P0AG51 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG51
Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L31
Z
70Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmE
Find proteins for P0A7M9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7M9
Entity ID: 26
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L32
1
56Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmF
Find proteins for P0A7N4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7N4
Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L33
2
54Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmG
Find proteins for P0A7N9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7N9
Entity ID: 28
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L34
3
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: 29
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L35
4
64Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmI
Find proteins for P0A7Q1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Q1
Entity ID: 30
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L36
5
38Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmJ
Find proteins for P0A7Q6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Q6
Entity ID: 31
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L11
6
141Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplK (relC)
Find proteins for P0A7J7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7J7
Entity ID: 33
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S3
c
206Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsC
Find proteins for P0A7V3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V3
Entity ID: 34
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S4
d
205Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsD (ramA)
Find proteins for P0A7V8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V8
Entity ID: 35
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S5
e
150Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsE (spc)
Find proteins for P0A7W1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W1
Entity ID: 36
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S6
f
100Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsF
Find proteins for P02358 (Escherichia coli (strain K12))
Go to UniProtKB:  P02358
Entity ID: 37
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S7
g
150Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsG
Find proteins for P02359 (Escherichia coli (strain K12))
Go to UniProtKB:  P02359
Entity ID: 38
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S8
h
129Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsH
Find proteins for P0A7W7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W7
Entity ID: 39
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S9
i
127Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsI
Find proteins for P0A7X3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7X3
Entity ID: 40
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S10
j
98Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsJ (nusE)
Find proteins for P0A7R5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R5
Entity ID: 41
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S11
k
117Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsK
Find proteins for P0A7R9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R9
Entity ID: 42
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S12
l
123Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsL (strA)
Find proteins for P0A7S3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S3
Entity ID: 43
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S13
m
114Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsM
Find proteins for P0A7S9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S9
Entity ID: 44
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S14
n
100Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsN
Find proteins for P0AG59 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG59
Entity ID: 45
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S15
o
88Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsO (secC)
Find proteins for P0ADZ4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADZ4
Entity ID: 46
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S16
p
82Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsP
Find proteins for P0A7T3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7T3
Entity ID: 47
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S17
q
80Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsQ (neaA)
Find proteins for P0AG63 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG63
Entity ID: 48
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S18
r
55Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsR
Find proteins for P0A7T7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7T7
Entity ID: 49
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S19
s
79Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsS
Find proteins for P0A7U3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U3
Entity ID: 50
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S20
t
85Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsT
Find proteins for P0A7U7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U7
Entity ID: 51
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S2
7
218Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsB
Find proteins for P0A7V0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V0
Entity ID: 52
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S21
u
51Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsU
Find proteins for P68679 (Escherichia coli (strain K12))
Go to UniProtKB:  P68679
Entity ID: 1
MoleculeChainsLengthOrganism
5S rRNAA117Escherichia coli
Entity ID: 2
MoleculeChainsLengthOrganism
23S rRNAB2841Escherichia coli
Entity ID: 32
MoleculeChainsLengthOrganism
16S rRNAa1530Escherichia coli
Entity ID: 53
MoleculeChainsLengthOrganism
P-tRNAv76Escherichia coli
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01 GM29169
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01 GM55440
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01 GM 084288
American Cancer SocietyUnited States125201

Revision History 

  • Version 1.0: 2019-05-29
    Type: Initial release
  • Version 1.1: 2019-07-03
    Type: Data collection, Database references