If an α-helix of a polypeptide consist of 360 amino acids, how many turns does the helix contain?
Correct answer: B. 100 turns
- A. 3.6 turns
- B. 100 turns
- C. 360 turns
- D. The number of turns can not be determind
Explanation
An alpha(α) helix contains 3.6 amino acids per turn of the helix. If a polypeptide consists of 360 amino acids, the turns in the helix would be 100. 360÷3.6=100 amino acids.
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