Anti-EIF2S3B antibodies are used in the immunodetection of the protein eukaryotic translation initiation factor 2 subunit gamma B. In humans, the canonical protein has a reported length of 472 amino acid residues and a mass of 51.2 kDa. Up to 2 different isoforms have been reported for this protein. It is a member of the Classic translation factor GTPase protein family. Synonyms for this target antigen include eIF-2-gamma2, eukaryotic translation initiation factor 2, subunit 3 gamma, 52kDa, putative eukaryotic translation initiation factor 2 subunit 3-like protein, and eukaryotic translation initiation factor 2 subunit 3B.