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nmdcat.online June 29, 2026

In the α-helix structure, the stabilizing hydrogen bond forms between residues

A. i and i+1
B. i and i+2
C. i and i+4
✓
D. i and i+5

📝 Explanation

In an α-helix, the carbonyl oxygen of residue i hydrogen bonds with the amide hydrogen of residue i+4, producing the stable helical conformation.

📖 Additional Information

  • i and i+1
  • i and i+2
  • i and i+4
  • i and i+5

In an α-helix, the carbonyl oxygen of residue i hydrogen bonds with the amide hydrogen of residue i+4, producing the stable helical conformation.

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