Question
An amino acid which does not participate in alpha-helix formation is:
A. Leucine
B. Glycine
C. Proline
D. Lysine
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Correct Answer » C Explanation |
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Ans.C. Proline
- Different amino-acid sequences have different propensities for forming an α–helical structure. Methionine, alanine, leucine, glutamate, and lysine uncharged (“MALEK” in the amino–acid 1-letter codes) all have especially high helix-forming propensities, whereas proline and glycine have poor helix-forming propensities.