The helical structure of protein is stabilized by - Vidyadip

MCQ

The helical structure of protein is stabilized by

A
Ether bonds
B
Peptide bonds
C
Dipeptide bonds
✓
Hydrogen bonds

✓

Answer

Correct option: D.

Hydrogen bonds

d
(d) $\alpha$ -helix structure is formed when the chain of $\alpha$ -amino acid coil as a right handed screw because of the formation of hydrogen bonds between amide groups of the same peptide chain i.e., $NH$ group in one unit is linked to carbonyl oxygen of the third unit by hydrogen bonding. This $H-$ bonding is responsible for holding helix in a position.

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