1E8S

Alu domain of the mammalian SRP (potential Alu retroposition intermediate)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Work: 0.388 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structure and Assembly of the Alu Domain of the Mammalian Signal Recognition Particle

Weichenrieder, O.Wild, K.Strub, K.Cusack, S.

(2000) Nature 408: 167

  • DOI: 10.1038/35041507
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Alu domain of the mammalian signal recognition particle (SRP) comprises the heterodimer of proteins SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. It retards the ribosomal elongation of signal-peptide-containing proteins bef ...

    The Alu domain of the mammalian signal recognition particle (SRP) comprises the heterodimer of proteins SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. It retards the ribosomal elongation of signal-peptide-containing proteins before their engagement with the translocation machinery in the endoplasmic reticulum. Here we report two crystal structures of the heterodimer SRP9/14 bound either to the 5' domain or to a construct containing both 5' and 3' domains. We present a model of the complete Alu domain that is consistent with extensive biochemical data. SRP9/14 binds strongly to the conserved core of the 5' domain, which forms a U-turn connecting two helical stacks. Reversible docking of the more weakly bound 3' domain might be functionally important in the mechanism of translational regulation. The Alu domain structure is probably conserved in other cytoplasmic ribonucleoprotein particles and retroposition intermediates containing SRP9/14-bound RNAs transcribed from Alu repeats or related elements in genomic DNA.


    Organizational Affiliation

    European Molecular Laboratory Biology, Grenoble Outstation, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SIGNAL RECOGNITION PARTICLE 9 KDA PROTEIN
A
85Homo sapiensGene Names: SRP9
Find proteins for P49458 (Homo sapiens)
Go to Gene View: SRP9
Go to UniProtKB:  P49458
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SIGNAL RECOGNITION PARTICLE 14 KDA PROTEIN
B
106Homo sapiensGene Names: SRP14
Find proteins for P37108 (Homo sapiens)
Go to Gene View: SRP14
Go to UniProtKB:  P37108
Entity ID: 3
MoleculeChainsLengthOrganism
7SL RNA, 88-MERC88Homo sapiens
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EU3
Query on EU3

Download SDF File 
Download CCD File 
C
EUROPIUM (III) ION
Eu
LNBHUCHAFZUEGJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Work: 0.388 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 143.330α = 90.00
b = 143.330β = 90.00
c = 60.360γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
CNSrefinement
SHARPphasing
HKLdata scaling
MOSFLMdata reduction
SOLOMONphasing
HKLdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-08
    Type: Initial release