eIF2alpha, also known as EIF2S1 or EIF2, is a 315 amino acid subunit of the eukaryotic initiation complex that functions to bind tRNA to the 40S ribosomal subunit (in a GTP-dependent manner), thereby initiating translation. In addition, the phosphorylation state of eIF2alpha controls the rate of tRNA translation. When eIF2alpha is not phosphorylated, translation occurs at a normal rate. However, upon phosphorylation by one of several kinases, eIF2alpha is stabilized, thus preventing the GDP/GTP exchange reaction and slowing translation.
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Form:
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2
Application Dilute:
WB: 1:500~1:1000 IHC: 1:50~1:200
Application Notes:
p-eIF2alpha (S51) polyclonal antibody detects endogenous levels of eIF2alphaprotein only when phosphorylated at Ser51.
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