The Main Bonds Present in the C Domain of Antigen-Binding

Question

The main bonds present in the C domain of antigen-binding proteins are
A) hydrogen bonds.
B) intrachain disulfide bonds.
C) ionic bonds.
D) van der Waals forces.

Accepted Answer

The C domain of antigen-binding proteins (such as IgG) is also known as the constant domain, and it contains intrachain disulfide bonds that stabilize its tertiary structure. While hydrogen bonds, ionic bonds, and van der Waals forces may also be present, they are not the main bonds that hold the C domain together.