Anti-CT41.1 antibodies enable researchers to detect and measure the CT41.1 antigen in biological samples. This target is a reported synonym of the TDRD1 gene, which encodes tudor domain containing 1. This protein is known to function in spermatogenesis, among other biological roles. The human version of CT41.1 has a canonical amino acid length of 1180 residues and a protein mass of 132 kilodaltons, although 4 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and notably expressed in the ovary and testis. CT41.1 is a member of the TDRD1 protein family.