Anti-COX3 antibodies enable researchers to detect and measure the COX3 antigen in biological samples. This target is a reported synonym of the PTGS1 gene, which encodes prostaglandin-endoperoxide synthase 1. This protein is known to function in the regulation of cell proliferation and the response to oxidative stress, among other biological roles. The human version of COX3 has a canonical amino acid length of 599 residues and a protein mass of 68.7 kilodaltons, although 6 isoforms have been identified. It is reported to be localized in the ER and membrane of cells and widely expressed in many tissue types. Other names for this target antigen include COX1 and PCOX1. A number of COX3 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.