Question

1. Draw the structure of the tripeptide alanyl-glutamyl-glycine (AEG).

2. Differentiate primary, secondary and tertiary structures of protein.

3. What forces of attraction hold the subunits in a quaternary structure?

Answer 1

2.The main difference between primary secondary and tertiary structure of protein is that the primary structure of a protein is linear and the secondary structure of a protein can be either an α-helix or β-sheet whereas tertiary structure of a protein is globular.

3.Quaternary protein structure is held together by hydrophobic interactions, and disulfide bridges