Peroksidaasia

Peroksidaasia is a family of enzymes that catalyze the decomposition of hydrogen peroxide. Hydrogen peroxide is a reactive oxygen species that can be harmful to cells. Peroksidaasia enzymes play a crucial role in protecting cells from oxidative damage by breaking down hydrogen peroxide into water and oxygen.

There are several types of peroksidaasia, including catalase, glutathione peroxidase, and thioredoxin peroxidase. Catalase is found in most aerobic organisms and is particularly abundant in the liver and red blood cells. Glutathione peroxidase is a selenoenzyme that uses glutathione as a reducing agent to detoxify hydrogen peroxide. Thioredoxin peroxidase is another important antioxidant enzyme that protects cells from oxidative stress.

These enzymes are essential for the survival of aerobic organisms. Without peroksidaasia, the accumulation of hydrogen peroxide would lead to significant cellular damage and potentially cell death. The activity of peroksidaasia can be influenced by various factors, including pH, temperature, and the presence of certain inhibitors or activators. Research into peroksidaasia continues to explore their roles in various physiological processes and their potential therapeutic applications.