試題詳解

45. Molecular weight analysis of a protein yields the following information:

(Guanidinium chloride is a chaotropic (denaturing) reagent and 2-mercaptoethanol can reduce disulfide bonds.)What can you deduce about the protein's quaternary structure?
(A) Dimer of 100,000-M..
(B) Each 100,000-M. unit is dimer of a 25,000-M, and 75,000-M, protein jointly covalently by disulfide bonds.
(C) Dimer of a 25,000-M, and 75,000-M, protein.
(D) Monomer of 200,000-M..