Anti-2,4-dienoyl-CoA reductase 2, peroxisomal antibodies enable researchers to detect and measure the 2,4-dienoyl-CoA reductase 2, peroxisomal antigen in biological samples. This target is a reported synonym of the DECR2 gene, which encodes 2,4-dienoyl-CoA reductase 2. This protein is known to function in fatty acid metabolism, among other biological roles. The human version of 2,4-dienoyl-CoA reductase 2, peroxisomal has a canonical amino acid length of 292 residues and a protein mass of 30.8 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the peroxisomes of cells. 2,4-dienoyl-CoA reductase 2, peroxisomal is a member of the Short-chain dehydrogenases/reductases (SDR) protein family.