What defines tertiary structure?
A)the sequence of amino acids
B)the folding of a single polypeptide chain in 3-dimensional space
C)hydrogen-bonding interactions between adjacent amino acid residues into helical or pleated segments
D)the way in which separate,folded,monomeric,protein subunits associate to form oligomeric proteins

Question

Quizplus · Accepted Answer

Tertiary structure refers to the 3-dimensional folding of a single polypeptide chain, which includes interactions between distant amino acid residues. It is distinct from the primary structure (amino acid sequence) and the secondary structure (local regular patterns like helices and sheets).

Note: C refers to secondary structure, and D refers to quaternary structure.

What Defines Tertiary Structure