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What are the common types of secondary structure of proteins?
Secondary structure of protein: The secondary structure of protein refers to the shape in which a long polypeptide chain exist. They are found exist in two different types of structures viz.α-helix and β-pleated sheet structure. It arises due to the regular folding of the backbone of the polypeptide chain due to intermolecular hydrogen bonding between the carboxyl and amino group. In an α-helix, the peptide chain coils and the turns of the coil are held together by hydrogen bonds. In contrast to this, another type of secondary structure is possible in which the protein chains are stretched out and is known as β-structures.
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