The crystal structure of the conserved GTPase of SRP54 from the archaeon Acidianus ambivalens and its comparison with related structures suggests a model for the SRP-SRP receptor complex.
Montoya, G., Kaat, K., Moll, R., Schafer, G., Sinning, I.(2000) Structure 8: 515-525
- PubMed: 10801496 
- DOI: 10.1016/s0969-2126(00)00131-3
- Primary Citation of Related Structures:  
1J8M, 1J8Y - PubMed Abstract: 
Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved GTPase domains in the signal-peptide-binding proteins (SRP54 and Ffh) and the SR proteins (SRalpha and FtsY) ...