Concept explainers
(a)
Interpretation : The structure of propylasparate, its three-letter abbreviation and one-letter abbreviation needs to be determined.
Concept Introduction : Peptides are
(b)
Interpretation : The structure of threonylleucine, its three-letter abbreviation and one-letter abbreviation needs to be determined.
Concept Introduction : Peptides are polymers of amino acids which are organic molecule with −NH2 and −COOH groups bonded on same C-atom. Each amino acid is bonded wither other through peptide bond. The peptide bond is formed by condensation reaction of −NH2 and −COOH groups that leads to the formation of an amide linkage.
(c)
Interpretation : The structure of methionylglutaminyllysine, its three-letter abbreviation and one-letter abbreviation needs to be determined.
Concept Introduction : Peptides are polymers of amino acids which are organic molecule with −NH2 and −COOH groups bonded on same C-atom. Each amino acid is bonded wither other through peptide bond. The peptide bond is formed by condensation reaction of −NH2 and −COOH groups that leads to the formation of an amide linkage.
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Basic Chemistry
- Write a generalized structural representation for a peptide bond.arrow_forwardConsider the tripeptide leucylvalyltryptophan. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has a basic side chain?arrow_forwardCompare the structures of the peptide neurotransmitters Met-enkephalin and Leu-enkephalin in terms of a. what they have in common. b. how they differ.arrow_forward
- Consider the tripeptide tyrosylleucylisoleucine. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has an acidic side chain?arrow_forwardWhat characteristics indicate that amino acids exist as zwitterions?arrow_forwardWhat two functional groups are involved in the formation of a peptide bond?arrow_forward
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