What are the structural differences between the peptide hormones oxytocin and vasopressin?
Answer to relevant QuestionsAre amino acids other than the usual 20 amino acids found in proteins? If so, how are such amino acids incorporated into proteins? Give an example of such an amino acid and a protein in which it occurs. What are Ramachandran angles? Suggest a way in which the difference between the functions of hemoglobin and myoglobin is reflected in the shapes of their respective oxygen-binding curves. Comment on the energetics of protein folding in light of the information in this chapter. A mutation that changes an alanine residue in a protein to an isoleucine leads to a loss of activity. Activity is regained when a further mutation at the same site changes the isoleucine to a glycine. Why?
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