Anti-FIB antibodies are used in antigen-specific immunodetection in biological samples. The target FIB is a known alias name of the protein fibrillarin, encoded by the FBL gene in humans. This 321-amino acid residue protein is reported to be a S-adenosyl-L-methionine-dependent methyltransferase that has the ability to methylate both RNAs and proteins. It is localized to the nucleus of the cell and features ubiquitinated and acetylated post-translational modifications. It is reported to be widely expressed in many tissue types. A number of FIB antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.