protein domains

Protein domains are distinct regions within a protein that have specific shapes and functions. Think of them as modular building blocks, each capable of performing a particular task, like binding to other molecules or catalyzing reactions. These domains can fold independently, allowing proteins to be versatile and complex. By combining different domains, proteins can carry out a wide range of biological activities, much like how different parts of a machine work together to achieve a goal. Understanding protein domains helps scientists grasp how proteins work and how they can be targeted in medicine.