Anti-BPR-2 antibodies enable researchers to detect and measure the BPR-2 antigen in biological samples. This target is a reported synonym of the SARDH gene, which encodes sarcosine dehydrogenase. This protein is known to catalyze the last step of the oxidative degradation of choline to glycine. The human version of BPR-2 has a canonical amino acid length of 918 residues and a protein mass of 101 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the mitochondria of cells and widely expressed in many tissue types. BPR-2 is a member of the GcvT protein family.