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Question
What is meant by tertiary structure of proteins?
Answer in Brief
Solution
- The complex yet distinct structure that the helical polypeptide molecule can take on is spherical, rod-like, or any form in between.
- The term "tertiary (3°) structure" refers to certain geometric configurations in protein molecules. The polypeptide molecules' coils and folds are structured to reveal the polar side chains while concealing the non-polar amino acid chains within.
- In order to create the active areas of enzymatic proteins, a protein's tertiary structure brings distant side chains of amino acids closer together.
- Weak bonds, which form between two parts of a polypeptide, such as hydrophilic-hydrophobic, ionic, disulphide, and hydrogen, are responsible for maintaining the tertiary structure.
- Protein function is halted by pH, temperature, and substances that can easily upset this structure.
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