Product Name :
PKR (R445) polyclonal antibody Background :
An interferon-inducible, RNA-dependent protein serine/threonine kinase (PKR) has been described. PKR in earlier literature is variously known as DAI, dsJ, PI kinase, p65, p67 or TIK for the mouse kinase; and p68 or p69 for the human kinase. The PKR kinase substrate is the α subunit of protein synthesis initiation factor eIF-2. Phosphorylation of eIF-2α on serine-51 results in inhibition of translation. Molecular cDNA clones have been isolated from both human and mouse cells. The serine/threonine kinase catalytic domains map to the carboxy terminal half of the protein while the RNA-binding domains are located in the amino terminal region. Three kinds of regulation of PKR enzymatic activity have been described. Product :
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
PKR (R445) polyclonal antibody detects endogenous levels of PKR protein. Immunogen :
Synthetic peptide, corresponding to amino acids 410-460 of Human PKR. Conjugate :
Unconjugated Modification :
Unmodification

• 
  Western blot (WB) analysis of PKR pAb at 1:500 dilution Lane1:SGC7901 whole cell lysate(40ug) Lane2:A375 whole cell lysate(40ug) Lane3:HCC827 whole cell lysate(40ug)
• 
  Immunohistochemistry (IHC) analyzes of PKR (R445) pAb in paraffin-embedded human breast carcinoma tissue at 1:50.

Bioworld Biotech only provide peptides for our antibodies and do not provide additional peptide customization services.

---

Price/Size :

USD 368/1mg/vial

---

---

Tips: 

For phospho antibody, we provide phospho peptide（0.5mg) and non-phospho peptide(0.5mg).

---

Describe :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (WB) and Immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or IHC performed with the neutralized antibody.

---

Formula:

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.

---

Storage:

The freeze-dried powder is more stable. For short time at 2-8°C. For long term storage store at -20°C. 

---

Note :

This product is for research use only (RUO only). Not for use in diagnostic or therapeutic procedures.

---