7. For 1OPF, how would the removal of residues 114-131 affect solute selectivity, assuming that the removal did not alter the protein’s function?

A.   Removal of these residues would decrease the size of the transported solute, as the cross-section of the pore would decrease.

B.   Removal of these residues would increase the size of the transported solute, as the cross-section of the pore would decrease.

C.    Removal of these residues would decrease the size of the transported solute, as the cross-section of the pore would increase.

D.   Removal of these residues would increase the size of the transported solute, as the cross-section of the pore would increase.

8. What was the method used to determine the structure of OMPF?

9. What is the resolution of the structure of OMPF?

10. How many polypeptide chains constitute the functional unit of OMPF?