Anti-RABIF antibodies are used in the immunodetection of the protein RAB interacting factor. In humans, the canonical protein has a reported length of 123 amino acid residues and a mass of 13.8 kDa. It is ubiquitously expressed across many tissue types. A member of the DSS4/MSS4 protein family, Rabif is reported to be a guanine-nucleotide-releasing protein that acts on members of the SEC4/YPT1/RAB subfamily. Synonyms for this target antigen include RASGFR3, RASGRF3, guanine nucleotide exchange factor MSS4, Ras-specific guanine-releasing factor 3, mammalian suppressor of SEC4, and MSS4. RABIF gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some Rabif antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunofluorescence are also common applications.