Overview

  • Product name

    Anti-PKR antibody [EPR19374] - BSA and Azide free
    See all PKR primary antibodies
  • Description

    Rabbit monoclonal [EPR19374] to PKR - BSA and Azide free
  • Host species

    Rabbit
  • Tested applications

    Suitable for: WB, Flow Cyt, ICC/IF, IPmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant fragment aa 1-200. The exact sequence is proprietary.
    Database link: Q03963

  • General notes

    Ab224887 is the carrier-free version of ab184257. This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.

     

    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    ab224887 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    Constituent: PBS
  • Concentration information loading...
  • Purity

    Protein A purified
  • Clonality

    Monoclonal
  • Clone number

    EPR19374
  • Isotype

    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab224887 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use at an assay dependent concentration. Detects a band of approximately 58 kDa (predicted molecular weight: 58 kDa).
Flow Cyt Use at an assay dependent concentration.
ICC/IF Use at an assay dependent concentration.
IP Use at an assay dependent concentration.

Target

  • Function

    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.
  • Sequence similarities

    Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. GCN2 subfamily.
    Contains 2 DRBM (double-stranded RNA-binding) domains.
    Contains 1 protein kinase domain.
  • Post-translational
    modifications

    Autophosphorylated on several Ser and Thr 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.
  • Information by UniProt
  • Database links

  • Alternative names

    • Double stranded RNA activated protein kinase; antibody
    • E2AK2_HUMAN antibody
    • eIF-2A protein kinase 2 antibody
    • EIF2AK1 antibody
    • EIF2AK2 antibody
    • Eukaryotic translation initiation factor 2 alpha kinase 2 antibody
    • Eukaryotic translation initiation factor 2-alpha kinase 2 antibody
    • HGNC:9437 antibody
    • Interferon induced double stranded RNA activated protein kinase antibody
    • Interferon inducible elF2 alpha kinase antibody
    • Interferon inducible RNA dependent protein kinase antibody
    • Interferon-induced, double-stranded RNA-activated protein kinase antibody
    • Interferon-inducible RNA-dependent protein kinase antibody
    • MGC126524 antibody
    • P1/eIF-2A protein kinase antibody
    • P1/eIF2A protein kinase antibody
    • p68 kinase antibody
    • PKR antibody
    • PPP1R83 antibody
    • PRKR antibody
    • Protein kinase interferon inducible double stranded RNA dependent antibody
    • Protein kinase RNA activated antibody
    • Protein kinase RNA-activated antibody
    • Protein phosphatase 1 regulatory subunit 83 antibody
    • Serine/threonine protein kinase TIK antibody
    • Tyrosine protein kinase EIF2AK2 antibody
    see all

Images

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized HeLa (Human epithelial cell line from cervix adenocarcinoma) cells labeling PKR with ab184257 at 1/100 dilution, followed by Goat Anti-Rabbit IgG (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution (green).

    Confocal image showing cytoplasm and weakly nuclear staining on HeLa cell line. 

    The nuclear counterstain is DAPI (blue).

    Tubulin is detected with Anti-alpha Tubulin antibody [EPR19374] - Loading Control (ab7291) at 1/1000 dilution and Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed (ab150120) at 1/1000 dilution (red).

    The negative controls are as follows:-

    -ve control 1: ab184257 at 1/100 dilution followed by ab150120 at 1/1000 dilution.

    -ve control 2: ab7291  at 1/1000 dilution followed by ab150077  at 1/1000 dilution.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab184257).

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized NIH/3T3 Mouse embryonic fibroblast cell line) cells labeling PKR with ab184257 at 1/100 dilution, followed by Goat Anti-Rabbit IgG (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution (green).

    Confocal image showing cytoplasm and weakly nuclear staining on NIH/3T3 cell line. 

    The nuclear counterstain is DAPI (blue).

    Tubulin is detected with Anti-alpha Tubulin antibody [EPR19374]- Loading Control (ab7291) at 1/1000 dilution and Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed (ab150120) at 1/1000 dilution (red).

    The negative controls are as follows:-

    -ve control 1: ab184257 at 1/100 dilution followed by ab150120 at 1/1000 dilution.

    -ve control 2: ab7291  at 1/1000 dilution followed by ab150077  at 1/1000 dilution.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab184257).

  • Flow cytometric analysis of 4% paraformaldehyde-fixed NIH/3T3 (Mouse embryonic fibroblast cell line) cells labeling PKR with ab184257 at 1/120 dilution (red) compared with a Rabbit monoclonal IgG isotype control (ab172730; black) and an unlabelled control (cells without incubation with primary antibody and secondary antibody; blue). Goat anti Rabbit IgG (FITC) at 1/500 dilution was used as the secondary antibody.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab184257).

  • PKR was immunoprecipitated from 1mg of NIH/3T3 (Mouse embryonic fibroblast cell line) whole cell lysate with ab184257 at 1/40 dilution.

    Western blot was performed from the immunoprecipitate using ab184257 at 1/1000 dilution.

    VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/10000 dilution.

    Lane 1: NIH/3T3 whole cell lysate 10µg (Input).

    Lane 2: ab184257 IP in NIH/3T3 whole cell lysate.

    Lane 3: Rabbit IgG,monoclonal [EPR19374] - Isotype Control (ab172730) instead of ab184257 in NIH/3T3 whole cell lysate.

    Blocking and dilution buffer and concentration: 5% NFDM/TBST.

    Exposure time: 10 seconds.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab184257).

References

ab224887 has not yet been referenced specifically in any publications.

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