Catalysis can significantly impact redox signaling by altering the redox state of molecules and the rate at which redox reactions occur. Catalysts, such as enzymes, can accelerate the conversion of ROS into less harmful species, thereby maintaining cellular homeostasis. For example, superoxide dismutase (SOD) and catalase are enzymes that catalyze the dismutation of superoxide radicals and the decomposition of hydrogen peroxide, respectively, reducing oxidative stress.
