Below is the structure of aspartame, which is a chemically modified dipeptide a.

Question

Below is the structure of aspartame, which is a chemically modified dipeptide a. Circle and indicate the manes of the two amino acids that were used make aspartame b. Draw an arrow pointing to the peptide linkage between these two amino acids Describe the strongest possible for that could together each pair of amino acids if their side chains were close to other tertiary structure of a protein. Describe why acid would disrupt the intermolecular force between the side chains of lys and glu in the tertiary structure of a protein?

Explanation / Answer

24.

gly--> hydrogen bonding <--phe

ser --> hydrogen bonding <-- asn

glu --> hydrogen bonding <-- arg

25.

in lys and glu , the tertiary chains are attached with salt bridges which is result of neutralisation of acid and amine in the side reaction. when we add H2SO4 ,it lead to change of -COO- --> -COOH, thus reducing the extent of salt bridge and weakening intermolecular bond.

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