Phosphoglycerate mutase is an enzyme that plays a crucial role in the process of glycolysis, which is the breakdown of glucose to produce energy. It catalyzes the conversion of 3-phosphoglycerate to 2-phosphoglycerate, facilitating the rearrangement of the phosphate group within the molecule. This reaction is essential for the continuation of glycolysis and the production of pyruvate. This enzyme is found in various organisms, including humans, and is important for energy metabolism. Mutations or deficiencies in phosphoglycerate mutase can lead to metabolic disorders, affecting the body's ability to efficiently produce energy from carbohydrates.