Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using eIF2α (phospho-Ser49) Antibody. Specificity of this antibody is demonstrated by blocking with peptide.
Rabbit polyclonal antibody to eIF2 alpha (phospho S49)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]
Immunogen
The antiserum was produced against synthesized phosphopeptide derived from human eIF2a around the phosphorylation site of Serine 49 (L-L-S p -E-L).
Modification
Phosphoralated
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
IHCIHC-P
For IHC: Use at 1:50-100:
Species Reactivity
HumanMouseRat
Concentration
1mg/ml (Please refer to the vial label for the specific concentration)
Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor.
Application
Application
Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using eIF2α (phospho-Ser49) Antibody. Specificity of this antibody is demonstrated by blocking with peptide.
Application Notes
For IHC: Use at 1:50-100:
Additional Information
Form
Liquid
Storage Instructions
Keep as concentrated solution. Aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.