Ask Question
9 December, 18:24

How do the A, P, and E ribosomal sites differ functionally during protein synthesis?

+2
Answers (1)
  1. 9 December, 18:35
    0
    The ribosome contains three RNA binding sites, designated A, P and E. The A-site binds an aminoacyl-tRNA or termination release factors; the P-site binds a peptidyl-tRNA (a tRNA bound to the poly-peptide chain); and the E-site (exit) binds a free tRNA.

    Explanation:

    The A-site (A for aminoacyl) of a ribosome is a binding site for charged t-RNA molecules during protein synthesis. One of three such binding sites, the A-site is the first location the t-RNA binds during the protein synthesis process, the other two sites being P-site (peptidyl) and E-site (exit).
Know the Answer?