Protein tertiary structures are known to be a three dimensional structure of a protein with a single polypeptide chain (backbone) and one or more protein secondary structures known as protein domains.
Tertiary Structure Interactions 1) Hydrophobic Interactions: they are non- covalent bonds and very important in the formation of tertiary structure.
2) Ionic Bonds: the interaction of both positive and negative amino acids forms a bond that helps to stabilize the protein molecules.
3) Hydrogen Bonds: this bond exit between the amino acid with hydrophilic side chain found on the surface of the molecules and water molecules in a solution.
4) Disulfide Bridges: it is a strong covalent bond commonly found between cysteine residues in close proximity space.