Mouse anti-Human PKR Monoclonal Antibody | anti-PKR antibody

Anti-PKR Mouse mAb

Cat. Num. AAA476586

• Gene Names: EIF2AK2; PKR; PRKR; EIF2AK1; PPP1R83
• Reactivity: Human
• Applications: Western Blot
• Synonyms: PKR; Monoclonal Antibody; Anti-PKR Mouse mAb; Double stranded RNA activated protein kinase; E2AK2_HUMAN; eIF-2A protein kinase 2; EIF2AK1; EIF2AK2; Eukaryotic translation initiation factor 2 alpha kinase 2; Eukaryotic translation initiation factor 2-alpha kinase 2; HGNC:9437; Interferon induced double stranded RNA activated protein kinase; Interferon inducible elF2 alpha kinase; Interferon inducible RNA dependent protein kinase; Interferon-induced; double-stranded RNA-activated protein kinase; Interferon-inducible RNA-dependent protein kinase; MGC126524; P1/eIF-2A protein kinase; P1/eIF2A protein kinase; p68 kinase; PPP1R83; PRKR; Protein kinase interferon inducible double stranded RNA dependent; Protein kinase RNA activated; Protein kinase RNA-activated; Protein phosphatase 1 regulatory subunit 83; Serine/threonine protein kinase TIK; Tyrosine protein kinase EIF2AK2; anti-PKR antibody

• Host: Mouse
• Reactivity: Human
• Clonality: Monoclonal
• Isotype: IgG1
• Clone Number: 7E7-F11-G6
• Form/Format: Purified antibody in PBS with 0.05% sodium azide.
• Sequence Length: 551

• Applicable Applications for anti-PKR antibody: Western Blot (WB)
• Immunogen: Purified recombinant fragment of human EIF2AK2 (AA: 329-551) expressed in E Coli.
• Sequence Similarities: Contains 1 protein kinase domain.
• Subunit Structure: Homodimer. Interacts with STRBP (By similarity). Interacts with DNAJC3. Inhibited by direct interaction with viral proteins such as HCV E2, HCV NS5A and influenza A NS1. Activated by the interaction with HIV-1 Tat (By similarity). Forms a complex with FANCA, FANCC, FANCG and HSP70. Interacts with ADAR/ADAR1. Interacts with IRS1 (By similarity). The inactive form interacts with NCK1 and GSN. Interacts (via the kinase catalytic domain) with STAT3 (via SH2 domain), TRAF2 (C-terminus), TRAF5 (C-terminus) and TRAF6 (C-terminus). Interacts with MAP2K6, IKBKB/IKKB, NPM1, TARBP2, NLRP1, NLRP3, NLRC4 and AIM2. Interacts (via DRBM 1 domain) with DUS2L (via DRBM domain). Interacts with DHX9 (via N-terminus) and this interaction is dependent upon activation of the kinase. Interacts with human herpes simplex virus 1 (HHV-1) protein US11 in an RNA-dependent manner. The inactive form interacts with Toscana virus (TOS) NSS. Interacts with herpes virus 8 protein v-IRF2; this interaction inhibits EIF2AK2 activation.
• Subcellular Location: Cytoplasm; Perinuclear region

Western Blot (WB)

(Western blot detection of PKR in Jurkat, A549 and MCF7 cell lysates using PKR mouse mAb (1:1000 diluted).Predicted band size:62KDa.Observed band size:74KDa.)

Western Blot (WB)

(Western blot analysis using EIF2AK2 mAb against HEK293 (1) and EIF2AK2 (AA)

Western Blot (WB)

(Western blot analysis using EIF2AK2 mouse mAb against A431 (1), THP-1 (2), MCF-7 (3), PC-12 (4) cell lysate.)

Flow Cytometry (FC/FACS)

(Flow cytometric analysis of A431 cells using EIF2AK2 mouse mAb (green) and negative control (red).)

Immunohistochemistry (IHC)

(Immunohistochemical analysis of paraffin-embedded cervical cancer tissues using EIF2AK2 mouse mAb with DAB staining.)

Immunohistochemistry (IHC)

(Immunohistochemical analysis of paraffin-embedded rectum cancer tissues using EIF2AK2 mouse mAb with DAB staining.)

Related Product Information for anti-PKR antibody

Entrez Summary: 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]
UniPort Summary Function: IFN-induced dsRNA-dependent serine/threonine-protein kinase which plays a key role in the innate immune response to viral infection and is also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation. Exerts its antiviral activity on a wide range of DNA and RNA viruses including hepatitis C virus (HCV), hepatitis B virus (HBV), measles virus (MV) and herpes simplex virus 1 (HHV-1). Inhibits viral replication via phosphorylation of the alpha subunit of eukaryotic initiation factor 2 (EIF2S1), this phosphorylation impairs the recycling of EIF2S1 between successive rounds of initiation leading to inhibition of translation which eventually results in shutdown of cellular and viral protein synthesis. Also phosphorylates other substrates including p53/TP53, PPP2R5A, DHX9, ILF3, IRS1 and the HHV-1 viral protein US11. In addition to serine/threonine-protein kinase activity, also has tyrosine-protein kinase activity and phosphorylates CDK1 at Tyr-4 upon DNA damage, facilitating its ubiquitination and proteosomal degradation. Either as an adapter protein and/or via its kinase activity, can regulate various signaling pathways (p38 MAP kinase, NF-kappa-B and insulin signaling pathways) and transcription factors (JUN, STAT1, STAT3, IRF1, ATF3) involved in the expression of genes encoding proinflammatory cytokines and IFNs. Activates the NF-kappa-B pathway via interaction with IKBKB and TRAF family of proteins and activates the p38 MAP kinase pathway via interaction with MAP2K6. Can act as both a positive and negative regulator of the insulin signaling pathway (ISP). Negatively regulates ISP by inducing the inhibitory phosphorylation of insulin receptor substrate 1 (IRS1) at Ser-312 and positively regulates ISP via phosphorylation of PPP2R5A which activates FOXO1, which in turn up-regulates the expression of insulin receptor substrate 2 (IRS2). Can regulate NLRP3 inflammasome assembly and the activation of NLRP3, NLRP1, AIM2 and NLRC4 inflammasomes. Can trigger apoptosis via FADD-mediated activation of CASP8. Plays a role in the regulation of the cytoskeleton by binding to gelsolin (GSN), sequestering the protein in an inactive conformation away from actin.

NCBI and Uniprot Product Information

• NCBI GI #: 208431827
• NCBI GeneID: 5610
• NCBI Accession #: NP_001129123.1
• NCBI GenBank Nucleotide #: NM_001135651.2
• UniProt Accession #: P19525; Q52M43; Q7Z6F6; Q9UIR4; A8K3P0; D6W584; E9PC80
• Molecular Weight: 74kDa
• 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; 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; Protein kinase R

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

Chromosomal Location of Human Ortholog: 2p22.2

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

Molecular Function: double-stranded RNA binding; eukaryotic translation initiation factor 2alpha kinase activity; protein binding; protein kinase activity; protein phosphatase regulator activity; protein serine/threonine kinase activity

Biological Process: activation of MAPKK activity; activation of NF-kappaB transcription factor; cellular response to amino acid starvation; evasion by virus of host immune response; negative regulation of cell proliferation; negative regulation of osteoblast proliferation; negative regulation of translation; negative regulation of viral genome replication; positive regulation of chemokine production; positive regulation of cytokine production; positive regulation of stress-activated MAPK cascade; protein amino acid autophosphorylation; protein amino acid phosphorylation; response to virus