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Western blot analysis of extracts from RAW264.7 cells lysates tunicamycin-treated .using EIF2S1 (S51) Rabbit mAb [69OL] at dilution of 1:1000 incubated at 4℃ over night
Protein names :EIF2S1,EIF2A,IF2A_HUMAN,Eukaryotic translation initiation factor 2 subunit 1
UniProtID :P05198
MASS(da) :36,112
MW(kDa) :36 kDa
Form :Liquid
Purification :Protein A purification
Host :Rabbit
Isotype :IgG
sensitivity :Endogenous
Reactivity :Human,Rat
Specificity :Antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Ser51 of Human EIF2S1 .
Storage :Antibody store in 10 mM PBS, 0.5mg/ml BSA, 50% glycerol. Shipped at 4°C. Store at-20°C or -80°C. Products are valid for one natural year of receipt.Avoid repeated freeze / thaw cycles.
WB Positive detected :RAW264.7 cells lysates tunicamycin-treated
Function : Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (PubMed:16289705). This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S pre-initiation complex (PubMed:16289705). 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 (PubMed:16289705). 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 (PubMed:16289705). EIF2S1/eIF-2-alpha is a key component of the integrated stress response (ISR), required for adaptation to various stress: phosphorylation by metabolic-stress sensing protein kinases (EIF2AK1/HRI, EIF2AK2/PKR, EIF2AK3/PERK and EIF2AK4/GCN2) in response to stress converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, leading to an attenuation of cap-dependent translation, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activators ATF4 and QRICH1, and hence allowing ATF4- and QRICH1-mediated reprogramming (PubMed:19131336, PubMed:33384352)..
Subcellular locationi :Cytoplasm, Stress granule.
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 1% w/v BSA, 1X TBST at 4°C overnight.