English: General structure of an amino acid. Showing the Acid Group and Amino group. R represents a point where different groups can bond thus forming one of the 20 different amino acids.
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{{Information |Description=structure d'un acide aminé General structure of an amino acid. Showing the Acid Group and Amino group. R represents a point where different groups can bond thus forming one of the 20 different amino acids. |Source=*[[:File:AA-s