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The bond linking amino acids in a polypeptide is called the peptide bond. Jon

The transfer RNA (or tRNA) works with the messenger RNA (or mRNA) in the ribosome of the cell to synthesise proteins. Each molecule of tRNA links to a specific amino acid and the mRNA carries the code to decide on the sequence of amino acids. One end of the tRNA links to an amino acid while the other links to the mRNA so the code determines the sequence of amino acids. As you can find out from the website I gave earlier a peptide bond is a type of covalent bond between amino acids. (A peptide is just a short protein and proteins are made from chains of amino acids.)The carboxyl group of one amino acid links to the amine group of another and water is removed as they link.

Peptide bonds are neatly explained with good visuals: http://www.wisc-onl...bject.aspx?ID=BIC007

This second tRNA molecule brings a further amino acid and now the two amino acids join together with a peptide bond. I am available to assist with this topic further should you choose to do so.

One tRNA molecule moves to the ribosome bringing with it the amino acid to begin forming a polypeptide chain (tRNA attaching to the larger subunit, whereas the mRNA strand will be attached to the smaller ribosome subunit). Another tRNA molecule moves to the ribsome

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