These SAs ELISA kits are immunodetection tools for measuring the levels of SAs in biological samples. SAs is an alias of the human TSPAN31 gene, which encodes the protein, tetraspanin 31. Notably, SAs is known to play a role in the regulation of cell proliferation, among other functions. The TSPAN31 protein is described to be 210 amino acid residues in length and 23.1 kilodaltons in mass. It is localized to the membrane of the cell. This protein is known to be glycosylated. Other names for this target antigen include . Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.