catalog number :
MBS821692
products full name :
Anti-EIF2S1 (pS51) Antibody
products short name :
[EIF2S1 (pS51)]
products name syn :
[EIF2A; Eukaryotic translation initiation factor 2 subunit 1; Eukaryotic translation initiation factor 2 subunit alpha; eIF-2-alpha; eIF-2A; eIF-2alpha]
other names :
[eukaryotic translation initiation factor 2 subunit 1; Eukaryotic translation initiation factor 2 subunit 1; eukaryotic translation initiation factor 2 subunit 1; eIF-2-alpha; eukaryotic translation initiation factor 2 subunit alpha; eukaryotic translation initiation factor 2, subunit 1 alpha, 35kDa; Eukaryotic translation initiation factor 2 subunit alpha; eIF-2-alpha; eIF-2A; eIF-2alpha]
products gene name :
[EIF2S1]
other gene names :
[EIF2S1; EIF2S1; EIF2; EIF-2; EIF2A; EIF-2A; EIF-2alpha; EIF2A; eIF-2-alpha; eIF-2A; eIF-2alpha]
uniprot entry name :
IF2A_HUMAN
reactivity :
Human, Mouse, Rat, Bovine, Chicken, Pig, Zebrafish
specificity :
Recognizes endogenous levels of EIF2S1 (pS51) protein.
purity :
The antibody was purified by immunogen affinity chromatography.
form :
Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide.
storage stability :
Shipped at 4 degree C. Upon delivery aliquot and store at -20 degree C for one year. Avoid freeze/thaw cycles.
tested application :
Western Blot (WB), Immunohistochemistry (IHC), Immunoprecipitation (IP)
app notes :
WB (1/500 - 1/1000), IH (1/100 - 1/200), IP (1/10 - 1/100)
image1 heading :
Western Blot (WB)
image2 heading :
Immunohistochemistry (IHC)
other info2 :
Immunogen: KLH-conjugated synthetic peptide encompassing a sequence within the center region of human EIF2S1. The exact sequence is proprietary.
products description :
Rabbit polyclonal antibody to EIF2S1 (pS51)
ncbi acc num :
NP_004085.1
ncbi gb acc num :
NM_004094.4
ncbi pathways :
Activation Of The MRNA Upon Binding Of The Cap-binding Complex And EIFs, And Subsequent Binding To 43S Pathway (105970); BDNF Signaling Pathway (712093); Cap-dependent Translation Initiation Pathway (105967); Eukaryotic Translation Initiation Pathway (105966); Formation Of The Ternary Complex, And Subsequently, The 43S Complex Pathway (105969); GTP Hydrolysis And Joining Of The 60S Ribosomal Subunit Pathway (105973); Gene Expression Pathway (105937); Hepatitis C Pathway (173973); Hepatitis C Pathway (173907); Herpes Simplex Infection Pathway (377873)
ncbi summary :
The translation initiation factor EIF2 catalyzes the first regulated step of protein synthesis initiation, promoting the binding of the initiator tRNA to 40S ribosomal subunits. Binding occurs as a ternary complex of methionyl-tRNA, EIF2, and GTP. EIF2 is composed of 3 nonidentical subunits, the 36-kD EIF2-alpha subunit (EIF2S1), the 38-kD EIF2-beta subunit (EIF2S2; MIM 603908), and the 52-kD EIF2-gamma subunit (EIF2S3; MIM 300161). The rate of formation of the ternary complex is modulated by the phosphorylation state of EIF2-alpha (Ernst et al., 1987 [PubMed 2948954]).[supplied by OMIM, Feb 2010]
uniprot summary :
eIF2-alpha: a translation initiation factor that 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. Phosphorylated by at least 4 kinases: PERK, GCN2, HRI and PKR. Phosphorylation stabilizes the eIF-2/GDP/eIF-2B complex and prevents GDP/GTP exchange reaction, thus impairing the recycling of eIF-2 between successive rounds of initiation and leading to global inhibition of translation. Upregulated in some thyroid cancers and bronchiolo-alveolar adenocarcinomas; aberrant phosphorylation correlates with Alzheimer disease and Epstein-Barr virus infections. Protein type: Translation initiation; RNA-binding; Translation. Chromosomal Location of Human Ortholog: 14q23.3. Cellular Component: eukaryotic translation initiation factor 2B complex; polysome; membrane; stress granule; cytosol; nucleus; eukaryotic translation initiation factor 2 complex. Molecular Function: protein binding; translation initiation factor activity; ribosome binding. Biological Process: regulation of translation initiation in response to stress; unfolded protein response, activation of signaling protein activity; cellular protein metabolic process; translation; unfolded protein response; protein amino acid autophosphorylation; translational initiation; gene expression