You build 2 protein molecules, each from 113 amino acids

Last updated: 7/30/2022

You build 2 protein molecules, each from 113 amino acids. The amino acid sequence is identical for each protein molecule, except for the amino acid in position #8. In one protein molecule, the amino acid in position #8 is glycine. In the second protein molecule, the amino acid in position #8 is methionine. Do you expect these two proteins to have different 3D, folded structures? No, because this is just one amino acid out of many. Yes, because an amino acid change at the beginning of the polypeptide sequence will always affect protein shape. No, because both R groups will orient toward the protein's exterior. Yes, because glycine's R group is much smaller than methionine's R group. No, because both R groups will orient toward the protein's interior.