Anti-sta antibodies enable researchers to detect and measure the sta antigen in biological samples. This target is a reported synonym of the EMD gene, which encodes emerin. This protein is known to function in muscle organ development and the regulation of Wnt signaling pathways, among other biological roles. The human version of sta has a canonical amino acid length of 254 residues and a protein mass of 29 kilodaltons. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types.