Concept explainers
(a)
Interpretation: For the tripeptide
Concept introduction: A compound possessing three amino acids joined together by two peptide bonds is known as tripeptide. The amino acid naming sequence begins at the N-terminal amino acid residue.
(b)
Interpretation: For the tripeptide
Concept introduction: A compound possessing three amino acids joined together by two peptide bonds is known as tripeptide. The C-terminal amino acid residue is located at the far right of the peptide.
(c)
Interpretation: The number of peptide bonds present in the tripeptide
Concept introduction: A covalent bond that is formed by joining the carboxyl group of one amino acid with the amino group of second amino group is known as peptide bond.
(d)
Interpretation: The number of amide linkages present in the tripeptide
Concept introduction: A covalent bond that is formed by joining the carboxyl group of one amino acid with the amino group of second amino group is known as peptide bond.
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Organic And Biological Chemistry
- Which is NOT a characteristic of proteins? a. They contain genetic information. b. They can act as hormones. c. They can catalyze chemical reactions. d. They act in cell membrane trafficking.arrow_forwardAt room temperature, amino acids are solids with relatively high decomposition points. Explain why.arrow_forwardDrawing Peptide Structures Draw the tripeptide that would result from cysteine attaching to the previous dipeptide on the acidic side.arrow_forward
- Consider 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_forward22-42 (a) How many atoms of the peptide bond lie in the same plane? (b) Which atoms are they?arrow_forwardDraw a segment of the backbone of a protein that is long enough for three peptide linkages to be present.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_forward
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