2GO5

Structure of signal recognition particle receptor (SR) in complex with signal recognition particle (SRP) and ribosome nascent chain complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.4 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

Signal Recognition Particle Receptor Exposes the Ribosomal Translocon Binding Site

Halic, M.Gartmann, M.Schlenker, O.Mielke, T.Pool, M.R.Sinning, I.Beckmann, R.

(2006) Science 312: 745-747

  • DOI: 10.1126/science.1124864

  • PubMed Abstract: 
  • Signal sequences of secretory and membrane proteins are recognized by the signal recognition particle (SRP) as they emerge from the ribosome. This results in their targeting to the membrane by docking with the SRP receptor, which facilitates transfer ...

    Signal sequences of secretory and membrane proteins are recognized by the signal recognition particle (SRP) as they emerge from the ribosome. This results in their targeting to the membrane by docking with the SRP receptor, which facilitates transfer of the ribosome to the translocon. Here, we present the 8 angstrom cryo-electron microscopy structure of a "docking complex" consisting of a SRP-bound 80S ribosome and the SRP receptor. Interaction of the SRP receptor with both SRP and the ribosome rearranged the S domain of SRP such that a ribosomal binding site for the translocon, the L23e/L35 site, became exposed, whereas Alu domain-mediated elongation arrest persisted.


    Organizational Affiliation

    Institute of Biochemistry, Charité, University Medical School Berlin, Monbijoustrasse 2, 10117 Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Signal recognition particle 19 kDa protein (SRP19)
B
108Pongo abeliiMutation(s): 0 
Gene Names: SRP19
Find proteins for Q5RBR1 (Pongo abelii)
Go to Gene View: SRP19
Go to UniProtKB:  Q5RBR1
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Signal recognition particle 54 kDa protein (SRP54)
W
109Canis lupus familiarisMutation(s): 0 
Gene Names: SRP54
Find proteins for P61010 (Canis lupus familiaris)
Go to Gene View: SRP54
Go to UniProtKB:  P61010
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Signal recognition particle receptor alpha subunit (SR a)
1
185Homo sapiensMutation(s): 0 
Gene Names: SRPRA (SRPR)
Find proteins for P08240 (Homo sapiens)
Go to Gene View: SRPRA
Go to UniProtKB:  P08240
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Signal recognition particle receptor beta subunit (SR b)
2
214Mus musculusMutation(s): 0 
Gene Names: Srprb
Find proteins for P47758 (Mus musculus)
Go to UniProtKB:  P47758
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
ribosomal protein L35
5
124Triticum aestivumMutation(s): 0 
Gene Names: RPL35
Find proteins for Q8L805 (Triticum aestivum)
Go to Gene View: RPL35
Go to UniProtKB:  Q8L805
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
ribosomal protein L23
4
152Zea maysMutation(s): 0 
Find proteins for O81229 (Zea mays)
Go to UniProtKB:  O81229
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
ribosomal protein L31
6
123Zea maysMutation(s): 0 
Find proteins for Q5XLD9 (Zea mays)
Go to UniProtKB:  Q5XLD9
Entity ID: 1
MoleculeChainsLengthOrganism
SRP RNAA127Canis sp.
Entity ID: 2
MoleculeChainsLengthOrganism
ribosomal RNA990Triticum sp.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.4 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: 2006-06-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance