HORTICULTURE

Detailed explanation-1: -The secondary structure arises from the hydrogen bonds formed between atoms of the polypeptide backbone. The hydrogen bonds form between the partially negative oxygen atom and the partially positive nitrogen atom.

Detailed explanation-2: -An -helix secondary structure is stabilized by hydrogen bonds between carbonyl oxygen and the amino group of every third residue in the helical turn with each helical turn consisting of 3.6 amino acid residues (Fig. 10.1A).

Detailed explanation-3: -The hydrogen bonds form between the carbonyl group of one amino acid and the amine group of another. Hydrogen bonds are the only type of bond holding these structures together so are essential for the secondary structure.

Detailed explanation-4: -Hydrogen bonds between polar amine and carboxyl groups alleviate the desolvation penalty of those groups as they become buried in protein’s native structure. This, in turn, gives rise to the familiar protein secondary structures, such as alpha-helices and beta-sheets.

Detailed explanation-5: -Hydrogen bonds provide most of the directional interactions that underpin protein folding, protein structure and molecular recognition. The core of most protein structures is composed of secondary structures such as helix and sheet.