Question

Which statements about β turns are correct? Their purpose is to reverse the direction of the polypeptide chain. There are two types, I and II, which differ mainly in the conformation about the i+1 and i+2 residue amide bond. They typically contain large, hydrophobic residues. Their conformation is held in place through H bonds.

Answer 1

The correct answer is - 1, 2, and 4 statements.

Step-by-step explanation:

Beta and gamma turns are common plots or turns in proteins and contain intra-turn hydrogen bonds. This hydrogen bond is present between CO of residue i and NH of residue i+3 that holds the confirmation in beta turns.

Beta turns, assist the protein to get their globularity, as the aim of beta turns is to reverse the direction of the polypeptide. The two main of beta turns are type-I and type-Il. and their minor images are type-I and type-Il.

Thus, the correct answer is - 1, 2, and 4 statements.