The alpha-helical structure of a protein is stabilized by disulfide bridges, hydrogen bonding between the amino acid side chain atoms, peptide linkages that covalently bind the amino acids, and hydrogen bonding between the peptide backbone atoms.
Added by Susan N.
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Hydrogen bonding between the amino acid side chain atoms is also more relevant to the tertiary structure. Peptide linkages are responsible for connecting amino acids in a protein chain, but they do not specifically stabilize the alpha-helical structure. Show more…
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