Question
What do you mean understand by tertiary structure of proteins? Mention the forces involved informing these structures.
Solution
Tertiary structure of proteins : When the polypeptide chain with its secondary structure is further folded and twisted about itself a tertiary structure is formed. The tertiary structure of a protein adopts coiled compact structure of varying size and shape. The various forces involved in forming tertiary structures are,
(i) Hydrogen bonding.
(ii) Disulphide bridge.
(iii) Ionic or salt bridge.
(iv) Hydrophobic interaction.
