Protein Kinase R (PKR)

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PRKR; PRK-R; EIF2AK2; EIF2AK1; Eukaryotic Translation Initiation Factor 2 Alpha Kinase 2; Interferon-induced, double-stranded RNA-activated protein kinase; P1/eIF-2A kinase

Protein Kinase R (PKR)

PKR is activated by double-stranded RNA (dsRNA), the synthesis of which is caused virally. PKR can also be activated by the protein PACT or by heparin. PKR contains an N-terminal dsRNA binding domain (dsRBD) and a C-terminal kinase domain, that gives it pro-apoptotic (cell-killing) functions. The dsRBD consists of two tandem copies of a conserved double stranded RNA binding motif, dsRBM1 and dsRBM2. PKR is induced by interferon in a latent state. Binding to dsRNA is believed to activate PKR by inducing dimerization and subsequent autophosphorylation reactions. In situations of viral infection, the dsRNA created by viral replication and gene expression binds to the N-terminal domain, activating the protein and causing apoptosis of the cell to prevent further viral spread.

Organism species: Homo sapiens (Human)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA520Hu01 Recombinant Protein Kinase R (PKR) Positive Control; Immunogen; SDS-PAGE; WB.
APA520Hu01 Active Protein Kinase R (PKR) Cell culture; Activity Assays.
Antibodies PAA520Hu01 Polyclonal Antibody to Protein Kinase R (PKR) WB; IHC; ICC; IP.
MAA520Hu22 Monoclonal Antibody to Protein Kinase R (PKR) WB; IHC; ICC; IP.
Assay Kits SEA520Hu ELISA Kit for Protein Kinase R (PKR) Enzyme-linked immunosorbent assay for Antigen Detection.

Organism species: Mus musculus (Mouse)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA520Mu01 Recombinant Protein Kinase R (PKR) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA520Mu01 Polyclonal Antibody to Protein Kinase R (PKR) WB; IHC; ICC; IP.
Assay Kits n/a CLIA Kit for Protein Kinase R (PKR) CLIA Kit Customized Service Offer
n/a ELISA Kit for Protein Kinase R (PKR) ELISA Kit Customized Service Offer

Organism species: Rattus norvegicus (Rat)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA520Ra01 Recombinant Protein Kinase R (PKR) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA520Ra01 Polyclonal Antibody to Protein Kinase R (PKR) WB; IHC; ICC; IP.
Assay Kits n/a CLIA Kit for Protein Kinase R (PKR) CLIA Kit Customized Service Offer
n/a ELISA Kit for Protein Kinase R (PKR) ELISA Kit Customized Service Offer
  1. "Molecular cloning and characterization of the human double-stranded RNA-activated protein kinase induced by interferon."Cell 62:379-390(1990) [PubMed] [Europe PMC] [Abstract]
  2. "Mechanism of interferon action: cDNA structure, expression, and regulation of the interferon-induced, RNA-dependent P1/eIF-2 alpha protein kinase from human cells."Virology 188:33-46(1992) [PubMed] [Europe PMC] [Abstract]
  3. "Mechanism of interferon action sequence of the human interferon-inducible RNA-dependent protein kinase (PKR) deduced from genomic clones."Gene 178:191-193(1996) [PubMed] [Europe PMC] [Abstract]
  4. "Structural organization of the human gene (PKR) encoding an interferon-inducible RNA-dependent protein kinase (PKR) and differences from its mouse homolog."Genomics 36:197-201(1996) [PubMed] [Europe PMC] [Abstract]
  5. "Genomic features of human PKR: alternative splicing and a polymorphic CGG repeat in the 5'-untranslated region."J. Interferon Cytokine Res. 18:609-616(1998) [PubMed] [Europe PMC] [Abstract]
  6. "Complete sequencing and characterization of 21,243 full-length human cDNAs." Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract]
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