Rabbit anti-Human PKR Polyclonal Antibody | anti-PKR antibody

PKR (R445) Polyclonal Antibody

Cat. Num. AAA3004082

• Gene Names: EIF2AK2; PKR; PRKR; LEUDEN; EIF2AK1; PPP1R83
• Reactivity: Human
• Applications: Western Blot, Immunohistochemistry
• Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is >95% (by SDS-PAGE).
• Synonyms: PKR; Polyclonal Antibody; PKR (R445) Polyclonal Antibody; Interferon-induced; double-stranded RNA-activated protein kinase; Eukaryotic translation initiation factor 2-alpha kinase 2; eIF-2A protein kinase 2; Interferon-inducible RNA-dependent protein kinase; P1/eIF-2A protein kinase; Protein kinase RNA-activated; Tyrosine-protein kinase EIF2AK2; p68 kinase; PRKR; EIF2AK2; anti-PKR antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: PKR (R445) polyclonal antibody detects endogenous levels of PKR protein.
• Purity/Purification: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is >95% (by SDS-PAGE).
• Form/Format: Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2
• Sequence Length: 551

• Applicable Applications for anti-PKR antibody: Western Blot (WB), Immunohistochemistry (IHC)
• Application Notes: WB: 1:500-1:1000; IHC: 1:50-1:200
• Immunogen: Synthetic peptide, corresponding to amino acids 410-460 of Human PKR.
• Preparation and Storage: Store at 4 degree C short term.; Aliquot and store at -20 degree C long term.; Avoid freeze-thaw cycles.

Western Blot (WB)

(Western Blot (WB) analysis of PKR pAb at 1:500 dilutionLane1:SGC7901 whole cell lysate (40ug) Lane2:A375 whole cell lysate (40ug) Lane3:HCC827 whole cell lysate (40ug))

Immunohistochemistry (IHC)

(Immunohistochemistry (IHC) analyzes of PKR (R445) pAb in paraffin-embedded human breast carcinoma tissue at 1:50.)

Related Product Information for anti-PKR antibody

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 alpha subunit of protein synthesis initiation factor eIF-2. Phosphorylation of eIF-2alpha 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.

NCBI and Uniprot Product Information

• NCBI GI #: 208431827
• NCBI GeneID: 5610
• NCBI Accession #: NP_001129123.1
• NCBI GenBank Nucleotide #: NP_001129123.1
• UniProt Accession #: P19525
• Molecular Weight: Predicted Band Size: 62kDa; Observed Band Size: 68kDa
• NCBI Official Full Name: interferon-induced, double-stranded RNA-activated protein kinase isoform a
• NCBI Official Synonym Full Names: eukaryotic translation initiation factor 2 alpha kinase 2
• NCBI Official Symbol: EIF2AK2
• NCBI Official Synonym Symbols: PKR; PRKR; LEUDEN; EIF2AK1; PPP1R83
• NCBI Protein Information: interferon-induced, double-stranded RNA-activated protein kinase
• UniProt Protein Name: Interferon-induced, double-stranded RNA-activated protein kinase
• UniProt Gene Name: EIF2AK2
• UniProt Synonym Gene Names: PKR; PRKR; eIF-2A protein kinase 2; PKR
• UniProt Entry Name: E2AK2_HUMAN

NCBI Description

The protein encoded by this gene is a serine/threonine protein kinase that is activated by autophosphorylation after binding to dsRNA. The activated form of the encoded protein can phosphorylate translation initiation factor EIF2S1, which in turn inhibits protein synthesis. This protein is also activated by manganese ions and heparin. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

Uniprot Description

PKR: a protein kinase of the PEK family. Upon binding double-stranded RNA, it becomes autophosphorylated and activated. Phosphorylates and inhibits the alpha subunit of eIF2 alpha, which leads to an inhibition of the initiation of protein synthesis. Controls the activation of several transcription factors such as NF-kappaB, p53 and Stats. Mediates apoptosis induced by many different stimuli, such as LPS, TNF-alpha, viral infection and serum starvation.

Protein type: Kinase, protein; Translation; EC 2.7.11.1; Protein kinase, Other; EC 2.7.10.2; Protein kinase, Ser/Thr (non-receptor); Other group; PEK family

Chromosomal Location of Human Ortholog: 2p22-p21

Cellular Component: membrane; perinuclear region of cytoplasm; cytoplasm; ribosome; nucleus; cytosol

Molecular Function: protein serine/threonine kinase activity; protein binding; double-stranded RNA binding; non-membrane spanning protein tyrosine kinase activity; protein phosphatase type 2A regulator activity; ATP binding; eukaryotic translation initiation factor 2alpha kinase activity; protein kinase activity

Biological Process: positive regulation of cytokine production; peptidyl-tyrosine phosphorylation; translation; transcription, DNA-dependent; activation of MAPKK activity; unfolded protein response; response to virus; protein amino acid autophosphorylation; viral infectious cycle; protein amino acid phosphorylation; positive regulation of stress-activated MAPK cascade; positive regulation of chemokine production; evasion by virus of host immune response; activation of NF-kappaB transcription factor; negative regulation of cell proliferation; negative regulation of viral genome replication; modification by virus of host cellular process; virus-host interaction; negative regulation of translation; innate immune response; negative regulation of osteoblast proliferation; defense response to virus; negative regulation of apoptosis