SOD2 encodes the primary antioxidant enzyme inside your mitochondria — responsible for neutralizing reactive oxygen species at their source. The A16V variant (rs4880) determines how efficiently SOD2 is imported into the mitochondrial matrix. The Precision Peptide Genetic Test analyzes SOD2 as part of 17 Longevity & Aging insights spanning 14 pathways, 49 peptides, and 150+ genetic insights.