Anti-CT8 antibodies enable researchers to detect and measure the CT8 antigen in biological samples. This target is a reported synonym of the SYCP1 gene, which encodes synaptonemal complex protein 1. This protein is known to function in cell division and spermatogenesis, among other biological roles. The human version of CT8 has a canonical amino acid length of 976 residues and a protein mass of 114.2 kilodaltons. It is reported to be localized in the nucleus of cells and notably expressed in the testis.