Anti-eIF2α (Phospho-Ser51)

Y011279 by MBP is a rabbit polyclonal antibody detecting eIF2α (EIF2S1) phosphorylated at Serine 51, the convergent phosphorylation site for all four ISR kinases (HRI, PKR, PERK, GCN2). MW ~36 kDa. Validated for WB, IHC, and ELISA in human, mouse, and rat. Central marker for Integrated Stress Response (ISR), UPR, and viral infection studies. Research Use Only.