Which one of the following types of bond is principally responsible for holding the $alpha$-helix shape of a protein secondary structure?

BIOCHEMISTRY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which one of the following types of bond is principally responsible for holding the

A	disulfide
B	peptide
C	ionic
D	hydrogen

Explanation:

Detailed explanation-1: -The alpha-helix is a right-handed helical coil that is held together by hydrogen bonding between every fourth amino acid.

Detailed explanation-2: -Hydrogen bonds are stabilizing an alpha-helix. The alpha-helix (-helix) is a common motif in the secondary structure of proteins and is a right hand-coiled or spiral conformation (helix) in which every backbone N−H group donates a hydrogen bond to the backbone C=O. group of the amino acid. Was this answer helpful?

Detailed explanation-3: -The -helix structure fo proteins is stabilized by intramolecular hydrogen bonding between >C = O and > N-H groups of different peptide bonds.

Detailed explanation-4: -Hydrogen bonding is responsible for the formation of alpha-helix and beta-sheet structures in proteins.

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LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY