Shown below is an internal fragment of a polypeptide. If this polypeptide were growing, onto which end would the next amino acid be added?a) Onto the right b) Onto the left The image depicts the chemical structure of the tripeptide glutathione. It is composed of three amino acids linked by peptide bonds:1. **N-terminal Cysteine**: - The structure starts with a cysteine residue. The amino group (NH2) is bonded to an α-carbon, which also carries a methyl group (CH2) attached to a thiol group (SH).2. **Central Glycine**: - Connected to cysteine via a peptide bond (CO-NH), the second amino acid is glycine. It has a simpler structure with an amino group, an α-carbon bonded to a hydrogen atom, and a carboxyl group (COOH).3. **C-terminal Glutamic Acid**: - The final amino acid is glutamic acid. It links to glycine through another peptide bond. Glutamic acid features an α-carbon with a side chain containing a carboxyl group (COOH), in addition to the terminal carboxyl group.The structure illustrates these amino acids forming glutathione, a tripeptide known for its role in cellular defense and detoxification.

The incorporation of an amino acid into a protein follow specific trend with respect to the ends of…

Answered: Shown below is an internal fragment of…

Shown below is an internal fragment of a polypeptide. If this polypeptide were growing, onto which end would the next amino acid be added? a) Onto the right b) Onto the left

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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