The most common repeating pattern that is found along the secondary structure of a protein chain is:

Question

Quizplus · Accepted Answer

The most common repeating pattern found along the secondary structure of a protein chain is the α-helix. This is due to the regular pattern of hydrogen bonding between the carbonyl oxygen of one amino acid residue and the amide nitrogen of an amino acid residue four positions down the chain. This repeating pattern creates a helical structure that is stabilized by hydrophobic interactions between the side chains of the amino acid residues in the helix. β-pleated sheets are also a common secondary structure, but the question specifically asks for the most common repeating pattern, which is the α-helix.

The Most Common Repeating Pattern That Is Found Along the Secondary