Anti-Semaf antibodies enable researchers to detect and measure the Semaf antigen in biological samples. This target is a reported synonym of the SEMA5A gene, which encodes semaphorin 5A. This protein is known to function in cell adhesion and cell to cell signaling, among other biological roles. The human version of Semaf has a canonical amino acid length of 1074 residues and a protein mass of 120.6 kilodaltons. It is reported to be localized in the membrane of cells and notably expressed in many tissues, such as the epididymis and lung. Semaf is a member of the Semaphorin protein family.