A newly identified viral protein contains one long α-helix spanning 60 amino acid residues. The number of main chain H-bonds formed in this helix is __________.
A newly identified viral protein contains one long α-helix spanning 60 amino acid residues. The number of main chain H-bonds formed in this helix is __________.
Answer
Answer: 56
Explanation:
In an α-helix, each amino acid residue (starting from the fourth) forms a hydrogen bond with the residue four positions ahead. For a helix with 60 residues:
60 - 4 = 56
This gives 56 hydrogen bonds.