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InterviewSolution
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The helical structure of protein is stabilised by:A. Dipeptide bondsB. Hydrogen bondsC. Ether bondsD. Peptide bonds |
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Answer» Correct Answer - B Keratin, a fibrous protein found in wool, hair, fingernails, and feathers wraps into a helical coil, much like the cord on a telephone. Called an alpha `(alpha-)-` helix, this secondary structure is stablized by the formation of hydrogen bonds between the `N - H` group of one amino acid and the `C = O` group of another amino acid four residues with a distance between turns of `0.54 nm`. |
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