SPEF2 ELISA kits are immunoassay tools for the measurement of the protein sperm flagellar 2, which is encoded by the SPEF2 gene in humans. Functionally, this protein is known to be required for correct axoneme development in spermatozoa. The canonical protein structure is reported to have an amino acid sequence of 1822 residues and a mass of 209.8 kDa. It is known to be localized in the cell projections, golgi, and cytoplasm. As many as 4 protein isoforms have been reported. The SPEF2 gene has been associated with the disease, Spermatogenic failure. Other alias names for this target include cancer/testis antigen 122, testis tissue sperm-binding protein Li 47a, and sperm flagellar protein 2. Click on the products below for more detailed ELISA kit information, such as target reactivity and assay sensitivity.