2YKR

30S ribosomal subunit with RsgA bound in the presence of GMPPNP


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.8 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 for the Function of a Small Gtpase Rsga on the 30S Ribosomal Subunit Maturation Revealed by Cryoelectron Microscopy.

Guo, Q.Yuan, Y.Xu, Y.Feng, B.Liu, L.Chen, K.Sun, M.Yang, Z.Lei, J.Gao, N.

(2011) Proc.Natl.Acad.Sci.USA 108: 13100

  • DOI: 10.1073/pnas.1104645108

  • PubMed Abstract: 
  • The bacterial RsgA, a circularly permutated GTPase, whose GTPase activity is dependent on the 30S ribosomal subunit, is a late-stage ribosome biogenesis factor involved in the 30S subunit maturation. The role of RsgA is to release another 30S biogene ...

    The bacterial RsgA, a circularly permutated GTPase, whose GTPase activity is dependent on the 30S ribosomal subunit, is a late-stage ribosome biogenesis factor involved in the 30S subunit maturation. The role of RsgA is to release another 30S biogenesis factor, RbfA, from the mature 30S subunit in a GTP-dependent manner. Using cryoelectron microscopy, we have determined the structure of the 30S subunit bound with RsgA in the presence of GMPPNP at subnanometer resolution. In the structure, RsgA binds to the central part of the 30S subunit, close to the decoding center, in a position that is incompatible with multiple biogenesis factors, all three translation initiation factors, as well as A-, P-site tRNAs and the 50S subunit. Further structural analysis not only provides a structural model for the RsgA-dependent release of RbfA from the nascent 30S subunit, but also indicates RsgA's role in the ribosomal protein assembly, to promote some tertiary binding protein incorporation. Moreover, together with available biochemical and genetic data, our results suggest that RsgA might be a general checkpoint protein in the late stage of the 30S subunit biogenesis, whose function is not only to release biogenesis factors (e.g., RbfA) from the nascent 30S subunit, but also to block the association of initiation factors to the premature 30S subunit.


    Organizational Affiliation

    Ministry of Education Protein Science Laboratory, Center for Structural Biology, School of Life Sciences, and Department of Chemistry, Tsinghua University, Beijing 100084, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S2
B
218Escherichia coli (strain K12)Gene Names: rpsB
Find proteins for P0A7V0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S3
C
206Escherichia coli (strain K12)Gene Names: rpsC
Find proteins for P0A7V3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7V3
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S4
D
205Escherichia coli (strain K12)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
E
150Escherichia coli (strain K12)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
F
100Escherichia coli (strain K12)Gene Names: rpsF
Find proteins for P02358 (Escherichia coli (strain K12))
Go to UniProtKB:  P02358
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S7
G
151Escherichia coli (strain K12)Gene Names: rpsG
Find proteins for P02359 (Escherichia coli (strain K12))
Go to UniProtKB:  P02359
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S8
H
129Escherichia coli (strain K12)Gene Names: rpsH
Find proteins for P0A7W7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7W7
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S9
I
127Escherichia coli (strain K12)Gene Names: rpsI
Find proteins for P0A7X3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7X3
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S10
J
98Escherichia coli (strain K12)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
K
117Escherichia coli (strain K12)Gene Names: rpsK
Find proteins for P0A7R9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7R9
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S12
L
123Escherichia coli (strain K12)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
M
114Escherichia coli (strain K12)Gene Names: rpsM
Find proteins for P0A7S9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7S9
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S14
N
100Escherichia coli (strain K12)Gene Names: rpsN
Find proteins for P0AG59 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AG59
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S15
O
88Escherichia coli (strain K12)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
P
82Escherichia coli (strain K12)Gene Names: rpsP
Find proteins for P0A7T3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7T3
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S17
Q
80Escherichia coli (strain K12)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
R
55Escherichia coli O78:H11 (strain H10407 / ETEC)Gene Names: rpsR
Find proteins for E3PE70 (Escherichia coli O78:H11 (strain H10407 / ETEC))
Go to UniProtKB:  E3PE70
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S19
S
79Escherichia coli (strain K12)Gene Names: rpsS
Find proteins for P0A7U3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U3
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S20
T
85Escherichia coli (strain K12)Gene Names: rpsT
Find proteins for P0A7U7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7U7
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S21
U
51Escherichia coli (strain K12)Gene Names: rpsU
Find proteins for P68679 (Escherichia coli (strain K12))
Go to UniProtKB:  P68679
Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
PUTATIVE RIBOSOME BIOGENESIS GTPASE RSGA
W
350Escherichia coli (strain K12)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 RRNAA1533Escherichia coli DH5[alpha]
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.8 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: 2011-08-24
    Type: Initial release
  • Version 1.1: 2013-03-20
    Type: Other, Refinement description
  • Version 1.2: 2017-08-30
    Type: Data collection, Derived calculations, Refinement description, Structure summary