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Question
The secondary structure of protein is stabilised by:
The secondary structure of protein is stabilised by:
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Solution
The correct option is D Hydrogen bonding
The secondary structure of protein is stabilised by hydrogen bonding.
For stabilization of the secondary structure of proteins, there is a major contribution of the hydrogen bonds. Strands of proteins or peptides have distinct characteristic of secondary structure, dependent on hydrogen bonding. The two main types of secondary structure are the α-helix and the β-sheet.
The α-helix is a right-handed coiled strand. The side-chain substituents of the amino acid groups in an α-helix extend to the outside. Hydrogen bonds form between the oxygen of the C=O of each peptide bond in the strand and the hydrogen of the N−H group of the peptide bond four amino acids below it in the helix.
The hydrogen bonding in a β-sheet is between strands (inter-strand) rather than within strands (intra-strand). The sheet conformation consists of pairs of strands lying side-by-side.
The secondary structure of protein is stabilised by hydrogen bonding.
For stabilization of the secondary structure of proteins, there is a major contribution of the hydrogen bonds. Strands of proteins or peptides have distinct characteristic of secondary structure, dependent on hydrogen bonding. The two main types of secondary structure are the α-helix and the β-sheet.
The α-helix is a right-handed coiled strand. The side-chain substituents of the amino acid groups in an α-helix extend to the outside. Hydrogen bonds form between the oxygen of the C=O of each peptide bond in the strand and the hydrogen of the N−H group of the peptide bond four amino acids below it in the helix.
The hydrogen bonding in a β-sheet is between strands (inter-strand) rather than within strands (intra-strand). The sheet conformation consists of pairs of strands lying side-by-side.
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