Anti-EPM3 antibodies enable researchers to detect and measure the EPM3 antigen in biological samples. This target is a reported synonym of the KCTD7 gene, which encodes potassium channel tetramerization domain containing 7. This protein is known to function in protein oligomerization, among other biological roles. The human version of EPM3 has a canonical amino acid length of 289 residues and a protein mass of 33.1 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane and cytoplasm of cells.