Protein subunits in a multisubunit protein are held to each other primarily by
A)covalent bonds.
B)hydrophobic interactions exclusively.
C)both strong and weak interactions.
D)hydrophobic and other weak interactions.
E)All of the above.

Question

Quizplus · Accepted Answer

The protein subunits in a multisubunit protein are held together primarily by hydrophobic and other weak interactions, such as hydrogen bonding and van der Waals forces. Covalent bonds would create a single, large protein molecule rather than a multisubunit complex. Hydrophobic interactions are not the only interactions involved, as other weak interactions also play a role in stabilizing the complexes. Therefore, choice D is the best answer.

Protein Subunits in a Multisubunit Protein Are Held to Each