A tripeptide has two peptide bonds: aa1-aa2 peptide bond. aa2-aa3 peptide bond. Since the polypeptide chain of this tripeptide is almost fully extended, the side chains are on opposite sides of the backbone. Spacefilling model of the backbone. Each green dot indicates the bond between the alpha-carbon and the R group. Side view without the side chains. Spacefilling model. The alpha-carbons are dark gray.
Since the polypeptide chain of this tripeptide is almost fully extended, the side chains are on opposite sides of the backbone.
Spacefilling model of the backbone. Each green dot indicates the bond between the alpha-carbon and the R group. Side view without the side chains. Spacefilling model. The alpha-carbons are dark gray.