Anti-FLI1 antibodies are used in the immunodetection of the protein Fli-1 proto-oncogene, ETS transcription factor. In humans, the canonical protein has a reported length of 452 amino acid residues and a mass of 51 kDa. Its subcellular localization is in the nucleus. Up to 4 different isoforms have been reported for this protein. A member of the ETS protein family, FLI1 is known to be involved with organ morphogenesis and the regulation of transcription. The FLI1 gene has been associated with the disease, Ewing sarcoma. Synonyms for this target antigen include EWSR2, Friend leukemia integration 1 transcription factor, Ewing sarcoma breakpoint region 2, Friend leukemia virus integration 1, and BDPLT21. FLI1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of FLI1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.