Anti-Wnt family member 3A antibodies are used for the immunodetection of the protein encoded by the WNT3A gene. In humans, the canonical protein has a reported length of 352 amino acid residues and a mass of 39.4 kDa. Its subcellular localization is in the extracellular matrix and is secreted. Alternative splicing is reported to yield 2 different isoforms for this protein. It is notably expressed in the placenta and at low levels in adult lung, spleen, and prostate. A member of the Wnt protein family, it is known to be involved with axon guidance and the Wnt signaling pathway. Post-translational modifications have been described, including protein cleavage and glycosylation. Other names for this target antigen include protein Wnt-3a and wingless-type MMTV integration site family, member 3A. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 290 citations in the literature describe the use of Wnt family member 3A antibodies in research. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.