Anti-gp70 antibodies enable researchers to detect and measure the gp70 antigen in biological samples. This target is a reported synonym of the EMB gene, which encodes embigin. This protein is known to function in axon guidance and cell adhesion, among other biological roles. The human version of gp70 has a canonical amino acid length of 327 residues and a protein mass of 36.9 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells.