The protein chains in a complete antibody molecule are connected to each other by ___________ bonds.

Question

Quizplus · Accepted Answer

The protein chains in a complete antibody molecule are connected to each other by disulfide bonds. These bonds are covalent bonds between two sulfur atoms, one from each chain, and they contribute to the stability of the antibody molecule. Peptide bonds connect amino acids within a protein chain, while ionic bonds result from the electrostatic interaction between charged amino acid residues. However, neither of these bonds is responsible for connecting the protein chains in an antibody molecule.

The Protein Chains in a Complete Antibody Molecule Are Connected