Overview

  • Product name
    Anti-PKR (phospho T446) antibody [E120]
    See all PKR primary antibodies
  • Description
    Rabbit monoclonal [E120] to PKR (phospho T446)
  • Host species
    Rabbit
  • Specificity
    The antibody only detects PKR phosphorylated on Threonine 446.
  • Tested applications
    Suitable for: ChIP, IHC-P, WB, IPmore details
    Unsuitable for: Flow Cyt or ICC/IF
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic peptide within Human PKR. The exact sequence is proprietary.
    (Peptide available as ab181660)

  • Positive control
    • WB: HeLa treated with Calyculin A and TNF-alpha whole cell lysate; Calynculin A and IFN treated HeLa cell lysate. IHC-P: Human colon tissue.
  • General notes

    Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.

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

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.

Properties

  • Form
    Liquid
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage buffer
    pH: 7.20
    Preservative: 0.01% Sodium azide
    Constituents: 59% PBS, 40% Glycerol, 0.05% BSA
  • Concentration information loading...
  • Purity
    Protein A purified
  • Clonality
    Monoclonal
  • Clone number
    E120
  • Isotype
    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab32036 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
ChIP Use a concentration of 4 µg/ml.
IHC-P 1/200. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

See IHC antigen retrieval protocols.

WB 1/1000. Detects a band of approximately 68 kDa (predicted molecular weight: 62 kDa).Can be blocked with PKR (phospho T446) peptide (ab181660).
IP 1/10.
  • Application notes
    Is unsuitable for Flow Cyt or ICC/IF.
  • 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

    • All lanes : Anti-PKR (phospho T446) antibody [E120] (ab32036) at 1/1000 dilution (purified)

      Lane 1 : HeLa (human epithelial cell line from cervix adenocarcinoma) treated with Calyculin A and TNF-alpha whole cell lysates
      Lane 2 : Untreated HeLa whole cell lysates

      Lysates/proteins at 10 µg per lane.

      Secondary
      All lanes : HRP goat anti-rabbit IgG (H+L) at 1/1000 dilution

      Predicted band size: 62 kDa
      Observed band size: 68 kDa
      why is the actual band size different from the predicted?



      Blocking buffer: 5% NFDM/TBST

      Dilution buffer: 5% NFDM/TBST

    • Immunohistochemical analysis of PKR (phospho T446) expression in normal colon tissue, using 1/50 unpurified ab32036.

    • All lanes : Anti-PKR (phospho T446) antibody [E120] (ab32036) at 1/1000 dilution (unpurified)

      Lane 1 : Hela (human epithelial cell line from cervix adenocarcinoma) cell lysate
      Lane 2 : Hela cell lysate + IFN + CalyculinA
      Lane 3 : Hela cell lysate + Pptase

      Predicted band size: 62 kDa
      Observed band size: 68 kDa why is the actual band size different from the predicted?

    References

    This product has been referenced in:
    • Krishnamoorthy J  et al. Downregulation of PERK activity and eIF2a serine 51 phosphorylation by mTOR complex 1 elicits pro-oxidant and pro-death effects in tuberous sclerosis-deficient cells. Cell Death Dis 9:254 (2018). WB . Read more (PubMed: 29449538) »
    • Pan X  et al. Heat shock factor 1 suppresses the HIV-induced inflammatory response by inhibiting nuclear factor-?B. Cell Immunol 327:26-35 (2018). Read more (PubMed: 29525181) »
    See all 51 Publications for this product

    Customer reviews and Q&As

    1-10 of 24 Abreviews or Q&A

    Application
    Western blot
    Sample
    Human Cell lysate - whole cell (HeLa)
    Gel Running Conditions
    Reduced Denaturing (10 % gel)
    Loading amount
    50 µg
    Treatment
    10 ´M tunicamycin for 30 min, 1h, 2h, 3h
    Specification
    HeLa
    Blocking step
    BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

    Dr. Tamas Czompoly

    Verified customer

    Submitted May 19 2017

    Application
    Western blot
    Sample
    Human Cell lysate - whole cell (HT-1080 Cells)
    Gel Running Conditions
    Reduced Denaturing (4-12% Gel)
    Loading amount
    2 µg
    Specification
    HT-1080 Cells
    Blocking step
    BSA as blocking agent for 30 minute(s) · Concentration: 5% · Temperature: 20°C

    Abcam user community

    Verified customer

    Submitted Feb 28 2017

    Application
    Western blot
    Sample
    Human Cell lysate - whole cell (CD4+ T cell)
    Gel Running Conditions
    Reduced Denaturing (10% acrylamide)
    Loading amount
    20000 cells
    Treatment
    before or after pIC addition (10 minutes 30°C)
    Specification
    CD4+ T cell
    Blocking step
    BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C

    Abcam user community

    Verified customer

    Submitted Nov 20 2015

    Abcam guarantees this product to work in the species/application used in this Abreview.
    Application
    Western blot
    Sample
    Human Cell lysate - whole cell (293T)
    Loading amount
    20000 cells
    Specification
    293T
    Treatment
    100ng poly(I:C) for 6 hous
    Gel Running Conditions
    Reduced Denaturing (12%)
    Blocking step
    Milk as blocking agent for 30 minute(s) · Concentration: 3% · Temperature: 25°C

    Abcam user community

    Verified customer

    Submitted May 09 2013

    Answer

    Thank you for your email. I am sorry to hear that you have been experiencing problems with this antibody.

    I have read the details you have kindly provided and have following further questions

    - What is the problem with these products. Please fill in the attached relevant questionnaire.
    - There are 8 antibodies in this order but the problem is submitted for 5. Is it true 3 others have worked or yet to be tried by customers.
    - At what temperature customer stored the products?

    Thank you very much for your cooperation. I will look forward to hearing from you soon.

    Read More

    Answer

    Vielen Dank für Ihre Anfrage.


    Leider bieten wir generell keine kostenlosen Proben zu Testzwecken an, da wir bei über 90.000Produkten gar nicht die logistischen Möglichkeiten haben, neben unserer eigentlichen Produktpallette Teströhrchen zu lagern. Hier bei Abcam verfahren wir so, dass wir einen kostenlosen Ersatz oder eine Gutschrift verschicken, falls ein Antikörper nicht so funktioniert wie auf unserem Datenblatt beschrieben, und er innerhalb der 180Tage Garantiezeit reklamiert wird.

    Allerdings bieten wir einen besonderen Test-Discount an, wenn Sie den Antikörper in einer bisher ungetesteten Applikation oder Spezies testen möchten. Falls dies auf Ihre Experimente zutrifft, melden Sie sich bitte noch einmal bei uns vom Wissenschaftlichen Dienst, damit wir Ihre Experimente besprechen können.


    Auch wenn wir keine Test-Probenversenden, möchten wir Sie jedoch einladen, unser Abreview-System zu verwenden.Das Abreview-System erlaubt es unseren Kunden, Rezensionen unserer Produkte zu veröffentlichen und dafür Punkte zu erhalten. Diese “Abpoints” können gegen Rabatte beim Kauf weiterer Produkte oder Geschenkgutscheine wie z.B. Amazon.com-Gutscheine eingetauscht werden. Sollten Sie sich dazu entscheiden, dieses Produkt zu kaufen, teilen Sie uns bitte Ihre Ergebnisse mittels eines „Abreview“ mit. Sie können die Rezension durch einen Link direkt auf unserem Produktdatenblatt abschicken.

    Unter der folgenden URL können Sie mehr über unser Abreview-System zu erfahren:

    https://www.abcam.com/abreviews

    Ich hoffe, dies hilft Ihnen weiter. Bitte zögern Sie nicht, sich wieder bei uns zu melden, falls Sie weitere Fragen haben.

    Read More

    Answer

    Thank you for contacting us.

    I am sorry that the free of charge replacement has also regrettably not worked for you on this occasion. We appreciate you contacting us and this information will remain on our quality monitoring records.

    As requested I have asked our accounting department to issue a credit note for you, which can be redeemed against the invoice of a future order by passing it on to your purchasing department. To avoid confusion, please ensure your accounts department is aware of how the credit note is being used. If you have questions on how to use the credit note, please contact our accounting department.

    Credit ID: ####

    Our accounting department can be contacted by email at us.credits@abcam.com or by telephone using the information at the Contact Us link in the top right corner of our website. Please refer to the credit note ID in any correspondence with our accounting department.

    The credit note ID is for your reference only and does not automatically guarantee the credit.

    I hope this experience will not prevent you from purchasing other products from us in the future. Our Scientific Support team is always at your service, should you require further expert advice.

    Read More

    Answer

    Thank you for your note.

    This is to let you know that I have just contacted and asked our Account Department to raise a credit note for you - for the cost of one vial of ab32036. For your information, the internal reference note for this credit is CN20430. You can use this credit in the near future for any of the products which are in the catalogue.

    I hope this helps and if I can assist further, please do not hesitate to contact me.

    Read More

    Answer

    Thank you very much for your updates.

    I would like to reassure you that our Abpromise applies to your complaint since you purchased this product within the guarantee period. This means that in the event that a product is not functioning in the applications/species cited on the product data sheet (and the problem has been reported within 6 months of purchase) we will happily offer a credit note/refund to the value of the product purchased.

    I can offer your customer either a new vial or a credit note. Please do let me know how you wish to proceed.

    I look forward to hearing from you soon.

    Read More

    Answer

    Thank you for your update.

    Could you please specific and explain how this particular phosphorylation at T446 position has been induced? Has the customer used any inducer or any positive control?

    I look forward to hearing from you soon.

    Read More

    1-10 of 24 Abreviews or Q&A

    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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