Polyclonal Antibody to PKR (Phospho-Thr446)
Figure 1: Western blot analysis of extracts from K562 cells using PKR(Phospho-Thr446) Antibody 35-1256 (Lane 2) and the same antibody preincubated with blocking peptide(Lane1).
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Format : | Purified |
Amount : | 100 µl |
Isotype : | Rabbit IgG |
Content : | Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. |
Storage condition : | Store the antibody at 4°C, stable for 6 months. For long-term storage, store at -20°C. Avoid repeated freeze and thaw cycles. |
Following activation by double-stranded RNA in the presence of ATP, the kinase becomes autophosphorylated and can catalyze the phosphorylation of the translation initiation factor EIF2S1, which leads to an inhibition of the initiation of protein synthesis. Double-stranded RNA is generated during the course of a viral infection.
Abujiang Pataer, et,al. (2002) Cancer Res; 62: 2239.
K. D. Ryman, et,al. (2005) J. Virol; 79: 1487 - 1499.
Susana Guerra, et,al. (2006) J. Biol. Chem; 281: 18734 - 18745.
Predicted MW: 68kd, Western blotting: 1:500~1:1000, Immunohistochemistry: 1:50~1:100, Immunofluorescence: 1:100~1:200
For Research Use Only. Not for use in diagnostic/therapeutics procedures.
Subcellular location: | Cytoplasm, Nucleus, Cytoplasm |
Post transnational modification: | Autophosphorylated on several Ser, Thr and Tyr residues. Autophosphorylation of Thr-451 is dependent on Thr-446 and is stimulated by dsRNA binding and dimerization. Autophosphorylation apparently leads to the activation of the kinase. Tyrosine autophosphorylation is essential for efficient dsRNA-binding, dimerization, and kinase activation. |
Tissue Specificity: | Highly expressed in thymus, spleen and bone marrow compared to non-hematopoietic tissues such as small intestine, liver, or kidney tissues. Colocalizes with GSK3B and TAU in the Alzheimer disease (AD) brain. Elevated levels seen in breast and colon carcinomas,and which correlates with tumor progression and invasiveness or risk of progression. |
BioGrid: | 111596. 101 interactions. |
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