5NO3

RsgA-GDPNP bound to the 30S ribosomal subunit (RsgA assembly intermediate without uS3)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.16 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

RsgA couples the maturation state of the 30S ribosomal decoding center to activation of its GTPase pocket.

Lopez-Alonso, J.P.Kaminishi, T.Kikuchi, T.Hirata, Y.Iturrioz, I.Dhimole, N.Schedlbauer, A.Hase, Y.Goto, S.Kurita, D.Muto, A.Zhou, S.Naoe, C.Mills, D.J.Gil-Carton, D.Takemoto, C.Himeno, H.Fucini, P.Connell, S.R.

(2017) Nucleic Acids Res. 45: 6945-6959

  • DOI: 10.1093/nar/gkx324
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • During 30S ribosomal subunit biogenesis, assembly factors are believed to prevent accumulation of misfolded intermediate states of low free energy that slowly convert into mature 30S subunits, namely, kinetically trapped particles. Among the assembly ...

    During 30S ribosomal subunit biogenesis, assembly factors are believed to prevent accumulation of misfolded intermediate states of low free energy that slowly convert into mature 30S subunits, namely, kinetically trapped particles. Among the assembly factors, the circularly permuted GTPase, RsgA, plays a crucial role in the maturation of the 30S decoding center. Here, directed hydroxyl radical probing and single particle cryo-EM are employed to elucidate RsgA΄s mechanism of action. Our results show that RsgA destabilizes the 30S structure, including late binding r-proteins, providing a structural basis for avoiding kinetically trapped assembly intermediates. Moreover, RsgA exploits its distinct GTPase pocket and specific interactions with the 30S to coordinate GTPase activation with the maturation state of the 30S subunit. This coordination validates the architecture of the decoding center and facilitates the timely release of RsgA to control the progression of 30S biogenesis.


    Organizational Affiliation

    Molecular Recognition and Host-Pathogen Interactions, CIC bioGUNE, Bizkaia Technology Park, 48160 Derio, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S2
B
224Escherichia 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 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: 4
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S5
E
155Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsE (spc)
Find proteins for P0A7W1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W1
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S6
F
106Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsF
Find proteins for P02358 (Escherichia coli (strain K12))
Go to UniProtKB:  P02358
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S7
G
130Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsG
Find proteins for P02359 (Escherichia coli (strain K12))
Go to UniProtKB:  P02359
Entity ID: 7
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: 8
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: 9
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S10
J
99Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsJ (nusE)
Find proteins for P0A7R5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R5
Entity ID: 10
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: 11
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S12
L
14Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsL (strA)
Find proteins for P0A7S3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S3
Entity ID: 12
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: 13
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: 14
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: 15
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: 16
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: 17
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: 18
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: 19
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S20
T
86Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpsT
Find proteins for P0A7U7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U7
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
Small ribosomal subunit biogenesis GTPase RsgA
Z
313Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rsgA (engC, yjeQ)
EC: 3.6.1.-
Find proteins for P39286 (Escherichia coli (strain K12))
Go to UniProtKB:  P39286
Entity ID: 1
MoleculeChainsLengthOrganism
16S ribosomal RNAA1534Escherichia coli K-12
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
B, Z
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, N, P, T, Z
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
GNP
Query on GNP

Download SDF File 
Download CCD File 
Z
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
Modified Residues  7 Unique
IDChainsTypeFormula2D DiagramParent
PSU
Query on PSU
A
RNA LINKINGC9 H13 N2 O9 PU
5MC
Query on 5MC
A
RNA LINKINGC10 H16 N3 O8 PC
MA6
Query on MA6
A
RNA LINKINGC12 H18 N5 O7 PA
2MG
Query on 2MG
A
RNA LINKINGC11 H16 N5 O8 PG
G7M
Query on G7M
A
RNA LINKINGC11 H17 N5 O8 PG
UR3
Query on UR3
A
RNA LINKINGC10 H15 N2 O9 PU
4OC
Query on 4OC
A
RNA LINKINGC11 H18 N3 O8 PC
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2017-05-31
    Type: Initial release
  • Version 1.1: 2017-08-02
    Type: Data collection, Derived calculations
  • Version 1.2: 2017-09-13
    Type: Database references