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What is Which one of the following is not true for an α-helix and explain in detail?
Right-handed (clockwise) α-helix is more stable and therefore is the usual α-helix pattern found in the natural secondary structure. Left-handed α-helix is not common.
α-helix is the most common secondary structure in proteins.
α-helix has an overall dipole moment: amino terminus of an alpha helix is positive and carboxy terminus is negative.
All hydrogen bonds in a-helix are parallel (i.e. in the same direction).