Which of the following lipid-linked proteins are located primarily on the exterior surface of the membrane? 
a) Prenylated proteins.
b) Myristoylated proteins.
c) Plamitoylated proteins.
d) GPI-linked proteins. 
e) Farnesyl-linked proteins.

Prenylated proteins: 

a) Are integral membrane proteins. 

b) Contain amide linkages to straight-chain fatty acids. 

c) Contain ester linkages to straight-chain fatty acids. 

d) Are post-translationally modified proteins. 

e) None of the above.

Which of the lipid anchor modification(s) is (are) readily reversible with the help of thioesterases? 

a) Myristoylation. 

b) Palmitoylation. 

c) Glycosyl-phosphatidylinositolation (GPI). 

d) All of the above. 

e) None of the above.

Prenylated proteins: 

a) Are integral membrane proteins. 

b) Contain amide linkages to straight-chain fatty acids. 

c) Contain ester linkages to straight-chain fatty acids. 

d) Are post-translationally modified proteins. 

e) None of the above.