Anti-EIF3B antibodies are used in the immunodetection of the protein eukaryotic translation initiation factor 3 subunit B. In humans, the canonical protein has a reported length of 814 amino acid residues and a mass of 92.5 kDa. Its subcellular localization is in the cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the EIF-3 subunit B protein family, EIF3B is reported to be a RNA-binding component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. Synonyms for this target antigen include EIF3-P110, EIF3-P116, EIF3S9, PRT1, and EIF3-ETA. EIF3B gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of EIF3B antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.