Anti-SPANXB1 antibodies are used in the immunodetection of the protein SPANX family member B1. In humans, the canonical protein has a reported length of 103 amino acid residues and a mass of 11.8 kDa. Its subcellular localization is in the nucleus and cytoplasm. It is notably expressed in the testis and sperm. A member of the SPAN-X protein family, SPANXB1 is known to be involved with spermatid development. Synonyms for this target antigen include SPANX family member B/F, SPANX family member F1, SPANX family, member B2, SPANX family, member F2, and sperm protein associated with the nucleus on the X chromosome B1. Western Blot is a widely used application for the SPANXB1 antibodies listed below. In addition, Immunohistochemistry is also a common application.