Western Blotting (WB), Immunohistochemistry (IHC), Immunofluorescence (IF)
特异性
This antibody detects endogenous level of eIF2α, only when phosphorylated at serine 51.
纯化方法
Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.
免疫原
eIF2a (Phospho-Ser51) antibody was raised against a peptide sequence around phosphorylation site of serine 51 (E-L-S (p) -R-R) derived from Human eIF2α,.
Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B.