Anti-SPANXA1 antibodies are used in the immunodetection of the protein sperm protein associated with the nucleus, X-linked, family member A1. It is notably expressed in the testis. Synonyms for this target antigen include CT11.3, NAP-X, SPAN-X, SPAN-Xa, SPAN-Xb, SPANX, SPANX-A, and CT11.1. Western Blot is the most common application for the SPANXA1 antibodies listed below. ELISA and Immunohistochemistry are also common applications.