Question

$\alpha$ helices are stabilized by hydrogen bonds between amino acids that are _____ residues apart.
A)2
B)4
C)10
D)20
E)100

Accepted Answer

F1F1F1S1F1F1F10 helices are stabilized by hydrogen bonds between amino acids that are 4 residues apart. This is due to the repeating pattern of hydrogen bonding between the backbone NH group of amino acid i and the carbonyl group of amino acid i+4. This stabilizes the helix conformation and contributes to the overall structure of proteins.

α\alphaα helices are stabilized by hydrogen bonds between amino acids that are _____ residues apart.

$\alpha$ helices are stabilized by hydrogen bonds between amino acids that are _____ residues apart.