Anti-SFRP4 antibodies are used in the immunodetection of the protein secreted frizzled related protein 4. In humans, the canonical protein has a reported length of 346 amino acid residues and a mass of 39.8 kDa. It has been described to be a secreted protein. It is reported to be expressed in mesenchymal cells. A member of the Secreted frizzled-related protein (sFRP) protein family, SFRP4 is known to be involved with the Wnt signaling pathway and cell differentiation. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include FRPHE, FRZB-2, PYL, frizzled protein, human endometrium, secreted frizzled-related protein 4; secreted frizzled-related protein 4, and FRP-4. SFRP4 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of SFRP4 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.