Anti-EIF2B4 antibodies are used in the immunodetection of the protein eukaryotic translation initiation factor 2B subunit delta. In humans, the canonical protein has a reported length of 523 amino acid residues and a mass of 57.6 kDa. Up to 3 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the EIF-2B alpha/beta/delta subunits protein family, EIF2B4 is known to catalyze the exchange of eukaryotic initiation factor 2-bound GDP for GTP.; (Microbial infection) In case of infection by influenza A virus; required for viral replication in tracheal cells. Synonyms for this target antigen include EIF2B, VWM4, translation initiation factor eIF-2B subunit delta, and EIF-2B. EIF2B4 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of EIF2B4 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.