During the elongation phase of translation, A site (acceptor site) in the ribosome represents the first location where a codon pairs with an anticodon.
What is the A-site called in ribosome?
- P, A, and E are the names of the three tRNA sites.
- The expanding polypeptide chain of amino acids is held in place by the tRNA by the P site, also known as the peptidyl site.
- The new amino acid that will be added to the polypeptide chain is stored in the aminoacyl tRNA, which the A site (acceptor site) binds to.
- When making proteins, charged t-RNA molecules bind to the A-site (A for aminoacyl) of a ribosome.
- The A-site is one of three such binding sites; the other two sites are the P-site (peptidyl) and the E-site.
- The t-RNA attaches to the A-site initially throughout the protein production process (exit).
- The amino acid attachment site and the anticodon are both present on tRNAs. The anticodon is a triplet of RNA that complements the mRNA.
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