Question

A new drug is developed which selectively cleaves covalent bonds between two sulfur atoms of non-adjacent amino acids in a polypeptide chain. Which level of protein structure in affected molecules would be most directly affected by the drug?

A. Secondary structure.
B. Tertiary structure.
C. Primary structure.
D. Quaternary structure.

Answer 1

B

Step-by-step explanation:

Tertiary structure is the overall three-dimensional structure resulting from folding and covalent cross-linking of a protein or polynucleotide molecule. This is what is explained in this question.