Science Fair Project Encyclopedia
Signal recognition particle
The signal recognition particle (SRP) is a protein-RNA complex that recognizes and transports specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes. The core of the particle is universal, being conserved in all three kingdoms.
The SRP is found in the cytosol. In eukaryotes, it binds to the ER signal sequence found in an emerging secretory protein and subsequently delivers the protein along with the ribosomes creating it to the ER membrane.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details