You have changed your country from  to  . Please be aware that this will change the currency in the purchasing process.

Anti-EIF2S1 antibody [EIF2a] (ab5369)

CodeSizePriceAbpointsAvailability
    
 
  • -

  •   
  •   
  •   
  •  

  •  
  •  
  •  

  •  
Updating...

Reassurance, Refunds & Replacements

If your product does not perform as described on this datasheet, we will refund or replace your product...

Read our guarantee »

Overview

Product name

Anti-EIF2S1 antibody [EIF2a]
See all EIF2S1 products (18) ...

Description

Mouse monoclonal [EIF2a] to EIF2S1

Specificity

This antibody recognizes the alpha subunit of eukaryotic translation initiation factor 2 (eIF-2A).

Tested applications

ICC/IF, WB, IHC-Pmore details

Cross reactivity

Reacts with

Mouse, Rat, Human

Immunogen

Recombinant full length protein (Human).

Epitope

not mapped.

Positive control

Human Jurkat, CEM and HeLa cells, mouse 3T3L1 and rat PC-12 cells.

Properties

Form

Liquid

Storage instructions

Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

Storage buffer

Preservative: 0.1% Sodium Azide
Constituents: PBS, pH 7.4

Concentration

Concentration information loading...

Purity

Protein A purified

Purification notes

Purified from ascites by Protein A/G chromatography.

Clonality

Monoclonal

Clone number

EIF2a

Isotype

IgG1

  • Western blot - EIF2S1 antibody [EIF2a] (ab5369)Western blot - EIF2S1 antibody [EIF2a] (ab5369) image (enlarge)

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - EIF2S1 antibody [EIF2a] (ab5369)Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - EIF2S1 antibody [EIF2a] (ab5369) image (enlarge)

  • Immunocytochemistry/ Immunofluorescence-EIF2S1 antibody [EIF2a](ab5369)Immunocytochemistry/ Immunofluorescence-EIF2S1 antibody [EIF2a](ab5369) image (enlarge)

Applications

Show applications key

Our Abpromise guarantee covers the use of ab5369 in the following tested applications.

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

Target

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.

Sequence similarities

Belongs to the eIF-2-alpha family.
Contains 1 S1 motif domain.

Post-translational
modifications

Substrate for at least 4 kinases: EIF2AK3/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. In case of infection by vaccinia virus or rotavirus A, eIF2S1 phosphorylation state is modulated.

Cellular localization

Cytoplasmic 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. Co-localizes with NANOS3 in the stress granules.

Target information above from: UniProt accessionP05198 The UniProt Consortium
The Universal Protein Resource (UniProt) in 2010
Nucleic Acids Res. 38:D142-D148 (2010).

Information by UniProt

Alternative names

  • Eukaryotic Translation Initiation Factor 2 alpha antibody
  • 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 [EIF2a] images:

  Western blot - EIF2S1 antibody [EIF2a] (ab5369)

Western blot - EIF2S1 antibody [EIF2a] (ab5369)



Predicted band size : 36 kDa

  Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - EIF2S1 antibody [EIF2a] (ab5369)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - EIF2S1 antibody [EIF2a] (ab5369)

Ab5369 staining EIF2S1 in human placenta. Staining is localised to the cytoplasm.
Left panel: with primary antibody at 2 ug/ml. Right panel: isotype control.
Sections were stained using an automated system DAKO Autostainer Plus , at room temperature. Sections were rehydrated and antigen retrieved with the Dako 3-in-1 AR buffer citrate pH 6.0 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 minutes. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS), then incubated with primary antibody for 20 minutes, and detected with Dako Envision Flex amplification kit for 30 minutes. Colorimetric detection was completed with diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that for manual staining we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.

  Immunocytochemistry/ Immunofluorescence-EIF2S1 antibody [EIF2a](ab5369)

Immunocytochemistry/ Immunofluorescence-EIF2S1 antibody [EIF2a](ab5369)

ICC/IF image of ab5369 stained HepG2 cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab5369, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-EIF2S1 antibody [EIF2a] (ab5369)

This product has been referenced in:

  • Cantero-Recasens G  et al. The asthma-associated ORMDL3 gene product regulates endoplasmic reticulum-mediated calcium signaling and cellular stress. Hum Mol Genet 19:111-21 (2010). WB; Human.Read more (PubMed: 19819884) »
  • Serrano J  et al. Double-edged sword behaviour of gallic acid and its interaction with peroxidases in human microvascular endothelial cell culture (HMEC-1). Antioxidant and pro-oxidant effects. Acta Biochim Pol 57:193-8 (2010). WB; Human.Read more (PubMed: 20532253) »

See all 13 publications for this product

Publishing research using ab5369? Please let us know so that we can cite the reference in this datasheet

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"