The R group or side chain of the amino acid serine is -CH2-OH. The R group or side chain of the amino acid leucine is -CH2-CH-(CH3)2. Where would you expect to find these amino acids in a globular protein in aqueous solution?

Question

Quizplus · Accepted Answer

Leucine has a nonpolar side chain, while serine has a polar side chain. Therefore, leucine is more likely to be found in the hydrophobic interior of the protein, while serine would be found on the hydrophilic exterior.

The R Group or Side Chain of the Amino Acid