Anti-TCP11 antibodies are used in the immunodetection of the protein t-complex 11. In humans, the canonical protein has a reported length of 503 amino acid residues and a mass of 56.1 kDa. Its subcellular localization is in the cytoplasmic vesicles and membrane. Up to 7 different isoforms have been reported for this protein. It is notably expressed in the testis. A member of the TCP11 protein family, TCP11 is reported to play a role in the process of sperm capacitation and acrosome reactions. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include FPPR, T-complex protein 11 homolog, fertilization-promoting peptide receptor, t-complex 11 (a murine tcp homolog), and D6S230E. TCP11 gene orthologs have been reported in the mouse, rat, bovine, chimpanzee and chicken species. Some TCP11 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.