Question

1) Assuming the oligopeptide α-helix forms one continuous α-helix, the carbonyl oxygen of the glutamic acid residue is hydrogen bonded to the amide nitrogen of

a. leucine
b. lysine
c. cysteine
d. isoleucine
e. serine

2) Which of the following mutations would probably be least likely to impact the function of the
protein?

a. Lys to Ala
b. Ala to Asp
c. His to Pro
d. Thr to Ser
e. Ala to Tyr

3) Hydrophobic interactions may occur between the R groups of which of the following amino acids?

a. tyrosine and phenylalanine

b. arginine and histidine

c. glycine and tryptophan

d. valine and asparagine