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प्रश्न
α-Helix is a secondary structure of proteins formed by twisting of polypeptide chain into right-handed screw like structures. Which type of interactions are responsible for making the α-helix structure stable?
उत्तर
In α-helix structure of protein, a polypeptide chain is stabilize by the formation of intramolecular H – bonding between – NH – group of amino acids in one turn with the >C = O groups of amino acids belonging to adjacent turn.
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\[\ce{\underset{(Glycine)}{H2N - CH2 - COOH}}\];
\[\begin{array}{cc}
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|\phantom{......}\\
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