Question 1
Which pair of amino acids can have nonpolar (hydrophobic) interactions?
◦ Cysteine and cysteine
◦ Tyrosine and serine
◦ Phenylalanine and valine
◦ Arginine and glutamate
Question 2
What type of stabilizing interaction could there be between the side chains of glutamic acid and lysine?
◦ Disulfide bonds
◦ Hydrogen bonds
◦ Hydrophobic interactions
◦ Salt bridges