NURSING ANM AND GNM

Detailed explanation-1: -The most common types of secondary structures are the helix and the pleated sheet. Both structures are held in shape by hydrogen bonds, which form between the carbonyl O of one amino acid and the amino H of another.

Detailed explanation-2: -Secondary structure refers to regular, local structure of the protein backbone, stabilised by intramolecular and sometimes intermolecular hydrogen bonding of amide groups.

Detailed explanation-3: -What is a beta-pleated sheet of protein? Beta-Pleated Sheets of Protein is a type of secondary structure of a protein. It consists of various beta strands linked by hydrogen bonds between adjacent strands. Three to ten amino acids are combined to create a beta-strand polypeptide.

Detailed explanation-4: --sheets are a more spacious type of secondary structure formed from -strands. Strands consist of the protein backbone “zigzagging”, typically for four to ten residues. Single -strands are not energetically favorable.

Detailed explanation-5: -For example, collagen forms part of the matrix upon which cells are arranged in animal tissues. The fibrous protein keratin forms structures such as hair and fingernails. The structures of keratin illustrate the importance of secondary structure in giving proteins their overall properties.