3BBX

The Hsp15 protein fitted into the low resolution Cryo-EM map of the 50S.nc-tRNA.Hsp15 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10 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

Recycling of Aborted Ribosomal 50S Subunit-Nascent Chain-tRNA Complexes by the Heat Shock Protein Hsp15.

Jiang, L.Schaffitzel, C.Bingel-Erlenmeyer, R.Ban, N.Korber, P.Koning, R.I.de Geus, D.C.Plaisier, J.R.Abrahams, J.P.

(2009) J.Mol.Biol. 386: 1357-1367

  • DOI: 10.1016/j.jmb.2008.10.079
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • When heat shock prematurely dissociates a translating bacterial ribosome, its 50S subunit is prevented from reinitiating protein synthesis by tRNA covalently linked to the unfinished protein chain that remains threaded through the exit tunnel. Hsp15, ...

    When heat shock prematurely dissociates a translating bacterial ribosome, its 50S subunit is prevented from reinitiating protein synthesis by tRNA covalently linked to the unfinished protein chain that remains threaded through the exit tunnel. Hsp15, a highly upregulated bacterial heat shock protein, reactivates such dead-end complexes. Here, we show with cryo-electron microscopy reconstructions and functional assays that Hsp15 translocates the tRNA moiety from the A site to the P site of stalled 50S subunits. By stabilizing the tRNA in the P site, Hsp15 indirectly frees up the A site, allowing a release factor to land there and cleave off the tRNA. Such a release factor must be stop codon independent, suggesting a possible role for a poorly characterized class of putative release factors that are upregulated by cellular stress, lack a codon recognition domain and are conserved in eukaryotes.


    Organizational Affiliation

    Department of Biophysical Structural Chemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.




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
273Escherichia 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
142Escherichia 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
123Escherichia 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
100Escherichia 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
103Escherichia 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
0
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
1
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
2
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
3
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
4
38Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpmJ
Find proteins for P0A7Q6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7Q6
Entity ID: 1
MoleculeChainsLengthOrganism
5S ribosomal RNAA120Escherichia coli
Entity ID: 2
MoleculeChainsLengthOrganism
23S ribosomal RNAB2904Escherichia coli
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
2, B, C, E, L, Q, S, T, U
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10 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: 2008-10-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-07-18
    Type: Data collection