Anti-spo antibodies enable researchers to detect and measure the spo antigen in biological samples. This target is a reported synonym of the LPO gene, which encodes lactoperoxidase. This protein is known to function in the response to oxidative stress, among other biological roles. The human version of spo has a canonical amino acid length of 712 residues and a protein mass of 80.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasm and is secreted of cells and notably expressed in the salivary gland. spo is a member of the Peroxidase protein family. Some spo antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.