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Chapter 29: Question 29.15 (page 1166)

Name each peptide using both the one-letter and the three-letter abbreviations for the names of the component amino acids.

a.

b.

Short Answer

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Answer

a. R-N-V and Arg-Asn-Val

b. K-H-Q and Lys-His-Gln

Step by step solution

01

Peptides

Amino acid binds together by amide bonds. Large molecules are formed called peptides. Peptides are used as dietary supplements, stimulate the skin, and provide proteins required for the skin.

02

Abbreviations

a. The names of these peptides are R-N-V and Arg-Asn-Val.

Structure of Arg-Asn-Val/R-N-V

b. The names of these peptides are K-H-Q and Lys-His-Gln.

Structure of Lys-His-Glu/K-H-Q

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Most popular questions from this chapter

What steps are needed to convert A to L-dopa, an uncommon amino acid that is effective in treating Parkinson’s disease? These steps are the key reactions in the first commercial asymmetric synthesis using a chiral transition metal catalyst. This process was developed at Monsanto in 1974.

Besides asymmetric hydrogenation (Section 29.4), several other methods are now available for the synthesis of optically active amino acids. How might a reaction like the Strecker synthesis be adapted to the preparation of chiral amino acids?

Draw all the steps in the synthesis of each peptide from individual amino acids:

  1. Gly-Ala;

  2. Ile-Ala-Phe

Devise a synthesis of the following dipeptide from amino acid starting materials.

Identify the lettered intermediates in the following reaction scheme. This is an alternative method to synthesize amino acids, based on the Gabriel synthesis of 1° amines (Section 25.7A).
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