Question

Function of signal recognition particle (SRP) is

• A. Binding to signal protein
• B. Reach the SRP receptor on ER membrane
• C. Move the ribosome producing the secretory protein over the ER membrane
• D. All the above

Answer 1

The correct option is D All the above

The signal recognition particle (SRP) is a ribonucleoprotein particle essential for the targeting of signal peptide-bearing proteins to the prokaryotic plasma membrane or the eukaryotic endoplasmic reticulum membrane for secretion or membrane insertion. SRP (signal recognition particle) is a molecule that helps the ribosome-mRNA-polypeptide complexes to settle down on the membrane of the endoplasmic reticulum.

So, the correct answer is 'All the above.'