GRX-2 is a type of protein that plays a crucial role in cellular processes. It is part of the glutaredoxin family, which helps maintain the balance of glutathione, an important antioxidant in the body. GRX-2 is primarily found in the mitochondria, the energy-producing structures within cells, where it helps protect against oxidative stress. Research has shown that GRX-2 is involved in various biological functions, including regulating cell signaling and protecting cells from damage. Its activity is essential for maintaining cellular health and function, making it a significant focus in studies related to cell biology and oxidative stress.