An alpha helix in a protein structure is stabilized by hydrogen bonds between the carbonyl oxygen and the amide hydrogen of which amino acid?
Q1. An alpha helix in a protein structure is stabilized by hydrogen bonds between the carbonyl oxygen and the amide hydrogen of which amino acid?
Answer: Fourth amino acid
Explanation: PTB confirms H-bonds form every fourth amino acid; the next amino acid is tempting but it only forms peptide bonds.