Anti-EIF2S1

0.5mg/ml if reconstituted with 0.2ml sterile DI water. Eukaryotic Translation Initiation Factor 2, Subunit 1, also called EIF2-alpha or EIF2A, is a protein that in humans is encoded by the EIF2S1 gene. Hartz(2010) mapped the gene to chromosome 14q23.3 based on an alignment of the EIF2S1 sequence with the genomic sequence (GRCh37). Ernst et al.(1987) stated that protein synthesis is inhibited due to phosphorylation of EIF2S1 in hemin-deprived rabbit reticulocyte lysates. HeLa cells subjected to heat shock, serum deprivation, or interferon treatment followed by virus infection also show a correlation between EIF2S1 phosphorylation and translational repression. Jacob et al.(1989) found that the alpha-Pal transcription factor bound to two palindromic sites within the EIF2S1 promoter and was essential for transcription of the gene. Protein function: 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. [The UniProt Consortium]