Asked by Miranda Josephson on May 06, 2024

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What controls the secondary structure of the alpha-helical and beta-pleated sheet forms of proteins?

A) Van der Waals forces
B) Hydrogen bonding
C) Di-sulfide linkages
D) C-C covalent bonds

Secondary Structure

The secondary structure of proteins involves the local folding or coiling of the peptide chain into structures such as alpha-helices and beta-sheets, primarily stabilized by hydrogen bonds.

Alpha-Helical

Pertaining to the alpha-helix structure, a type of secondary structure of proteins, characterized by a right-handed coil.

Beta-Pleated Sheet

A type of secondary structure found in proteins wherein the backbone is extended into a zigzag shape and strands are connected by hydrogen bonds.

  • Understand the characteristics and importance of secondary protein structures in determining their function.
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Verified Answer

JZ
Jenny ZhengMay 09, 2024
Final Answer :
B
Explanation :
Hydrogen bonding between the carbonyl oxygen of one amino acid and the amide hydrogen of another is crucial for the stability of alpha-helices and beta-pleated sheets in proteins.