At the interface between subunits of a protein with quaternary structure,which of the following interactions between amino acid side chains would contribute to the stability of the dimer?
A) glutamate-aspartate.
B) leucine-aspartate.
C) glutamate-lysine.
D) phenylalaninelysine.

Question

Quizplus · Accepted Answer

Glutamate and lysine can form a salt bridge due to the attraction between the negatively charged side chain of glutamate and the positively charged side chain of lysine, contributing to the stability of the protein dimer.

At the Interface Between Subunits of a Protein with Quaternary