• Product nameAnti-EIF2S1 antibody
    See all EIF2S1 primary antibodies
  • Description
    Rabbit polyclonal to EIF2S1
  • Tested applicationsSuitable for: WB, IHC-P, ELISAmore details
  • Species reactivity
    Reacts with: Human, Neurospora crassa
    Predicted to work with: Mouse, Rat
  • Immunogen

    Synthesized non-phosphopeptide derived from human eIF2a around the phosphorylation site of serine 52 (E-L-SP-R-R).

  • Positive control
    • K562 cell extract, human breast carcinoma tissue.


Associated products


Our Abpromise guarantee covers the use of ab47508 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Detects a band of approximately 40 kDa (predicted molecular weight: 36 kDa).
IHC-P Use at an assay dependent concentration.
ELISA 1/10000.


  • FunctionFunctions 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.
  • Sequence similaritiesBelongs to the eIF-2-alpha family.
    Contains 1 S1 motif domain.
  • Post-translational
    Substrate for at least 4 kinases: EIF2AK1/HRI, EIF2AK2/PKR, EIF2AK3/PERK and EIF2AK4/GCN2. 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 (PubMed:15207627, PubMed:18032499). Phosphorylated; phosphorylation on Ser-52 by the EIF2AK4/GCN2 protein kinase occurs in response to amino acid starvation and UV irradiation.
  • Cellular localizationCytoplasmic granule. The cytoplasmic granules are stress granules which are a dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress. Colocalizes with NANOS3 in the stress granules (By similarity).
  • Information by UniProt
  • Database links
  • Alternative names
    • EIF 2 alpha antibody
    • EIF 2 antibody
    • EIF 2A antibody
    • EIF 2alpha antibody
    • eIF-2-alpha antibody
    • eIF-2A antibody
    • EIF-2alpha antibody
    • EIF2 alpha antibody
    • EIF2 antibody
    • EIF2A antibody
    • EIF2S1 antibody
    • Eukaryotic translation initiation factor 2 subunit 1 alpha 35kDa antibody
    • Eukaryotic translation initiation factor 2 subunit 1 alpha antibody
    • Eukaryotic translation initiation factor 2 subunit 1 antibody
    • Eukaryotic translation initiation factor 2 subunit alpha antibody
    • IF2A_HUMAN antibody
    see all

Anti-EIF2S1 antibody images

  • Ab47508 at 1/50 dilution staining paraffin-embedded human breast carcinoma tissue; Left without and Right with immunising peptide (1ug/ml).

References for Anti-EIF2S1 antibody (ab47508)

ab47508 has not yet been referenced specifically in any publications.

Product Wall

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Western blot
Sample Neurospora crassa Cell lysate - whole cell (WT-74-OR23-1VA)
Loading amount 250 µg
Specification WT-74-OR23-1VA
Gel Running Conditions Reduced Denaturing
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

Dr. Gencer Sancar

Verified customer

Submitted Nov 11 2011