2. What would happen in each of the following cases? Assume in each case that the protein involved is a soluble protein, not a membrane protein.
a. You add a signal sequence (for the ER) to the amino-terminal end of a normally cytosolic protein.
b. You change the hydrophobic amino acids in an ER signal sequence into charged amino acids.
c. You replace the hydrophobic amino acids in an ER signal sequence with another hydrophobic amino acids.
d. You move the amino-terminal ER signal sequence to the carboxyl-terminal end of the protein.