Anti-EIF3I antibodies are used in the immunodetection of the protein eukaryotic translation initiation factor 3 subunit I. In humans, the canonical protein has a reported length of 325 amino acid residues and a mass of 36.5 kDa. Its subcellular localization is in the cytoplasm. It is notably widely expressed in many tissue types. A member of the EIF-3 subunit I protein family, EIF3I is a known component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include PRO2242, TRIP-1, TRIP1, eIF3-beta, eIF3-p36, and EIF3S2. EIF3I gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of EIF3I antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunofluorescence are also common applications.