Q. 16.14 - An Introduction to General, Organic, and Biological Chemistry

Question

Pcpeides froes sweet potato with antioxidant properties has the following sequence of amino acids. Draw the structure for each peptide and write the single-letter abbreviations.

a. Asp-Cys-Gly-Tyr

b. Asn-Tyt-Asp-Gila-Tyr

Step-by-Step Solution

Answer

The amino acid sequence of Pcpeides froes sweet potato with antioxidant properties is as follows. Draw the structure of each peptide and write the abbreviations in single letters. 

(Part a)

(Part b) 

Step 1: Introduction (Part a)

Amino acids contain an amine $\left(-{\mathrm{NH}}_2\right)$and carboxylic acid $(-\mathrm{COOH})$ functional group. Both the functional groups are covalently bonded to the a-carbon. All proteins are constructed from amino acids. A dipeptide is formed when two amino acids undergo a reaction that results in the formation of an amide bond between the amine group of one amino acid and the carboxylic group of the other amino acid, which joins the two amino acids. Proteins are macromolecules composed of repeating subunits known as amino acids, which determine protein shape and function.

Step 2: Given data (Part a)

The amino acid  Asp-Cys-Gly-Tyr sequence of Pcpeides froes sweet potato with antioxidant properties is as follows. Draw the structure of each peptide and write the abbreviations in single letters.

Step 3: Explanation (part a)

Step 4: Given data (Part b)

The amino acid  Asn-Tyt-Asp-Gila-Tyr sequence of Pcpeides froes sweet potato with antioxidant properties is as follows. Draw the structure of each peptide and write the abbreviations in single letters.

Step 5: Explanation (part b)