The most common motifs for this level of structure are the helix and the β- pleated sheet.
A) primary structure
B) secondary structure
C) tertiary structure
D) quaternary structure
E) both secondary and tertiary structures

Question

Quizplus · Accepted Answer

The helix and the β-pleated sheet are characteristic of the secondary structure of proteins, which involves the local folding of the polypeptide chain into these specific shapes.

The Most Common Motifs for This Level of Structure Are