Anti-fetuin B antibodies are used for the immunodetection of the protein encoded by the FETUB gene. In humans, the canonical protein has a reported length of 382 amino acid residues and a mass of 42.1 kDa. It is known to be a secreted protein. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the Fetuin protein family, it is known to be a protease inhibitor required for egg fertilization. Post-translational modifications have been described, including glycosylation. Other names for this target antigen include Gugu, IRL685, fetuin-like protein IRL685, and 16G2. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of fetuin B antibodies have been mentioned in research publications and have associated citations. ELISA is a widely used application for these antibodies. In addition, Western Blot is also a common application.