Anti-EIF2S1 antibodies are used in applications like western blot, flow cytometry, and immunofluorescence for the detection of protein encoded by the gene, eukaryotic translation initiation factor 2 subunit alpha (EIF2S1) in humans. The canonical EIF2S1 protein is 315 amino acids in length, 36.1 kDa in mass, and has a cytoplasmic subcellular localization. It is a member of the EIF-2-alpha protein family. In addition to protein translation, EIF2S1 is reported to play roles in cellular stress response and small molecule transport. Post-translational modifications have been described, notably phosphorylation. Synonyms for this protein include EIF-2; EIF-2alpha; EIF2; EIF2A. Orthologs for EIF2S1 have also been reported in other species, including mice, rats, bovine, zebrafish, chimpanzees and chicken.