Product nameAnti-PKR (phospho T446) antibody [E120] - BSA and Azide free
See all PKR primary antibodies
DescriptionRabbit monoclonal [E120] to PKR (phospho T446) - BSA and Azide free
Tested applicationsSuitable for: WB, IP, IHC-Pmore details
Unsuitable for: Flow Cyt or ICC/IF
Species reactivityReacts with: Human
Predicted to work with: Mouse
Synthetic peptide. The exact sequence is proprietary.
(Peptide available as
- Calynculin A and TNF alpha treated HeLa cell lysate
ab220801 is the carrier-free version of ab32036 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.
Ab220801 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.
Maxpar® is a trademark of Fluidigm Canada Inc.
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.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped 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 bufferpH: 7.20
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab220801 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use at an assay dependent concentration. Detects a band of approximately 68 kDa (predicted molecular weight: 62 kDa).|
|IP||Use at an assay dependent concentration.|
|IHC-P||Use at an assay dependent concentration. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.|
FunctionFollowing 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 similaritiesBelongs 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.
modificationsAutophosphorylated 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
- Double stranded RNA activated protein kinase; antibody
- E2AK2_HUMAN antibody
- eIF-2A protein kinase 2 antibody
Immunohistochemical analysis of PKR (phospho T446) expression in normal colon tissue, using 1/50 unpurified ab32036.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab32036).
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
This product has been referenced in:
- Kainulainen M et al. NSs Virulence Factor of Rift Valley Fever Virus Engages the F-Box Proteins FBXW11 and ß-TRCP1 To Degrade the Antiviral Protein Kinase PKR. J Virol 90:6140-7 (2016). Read more (PubMed: 27122577) »
- Rabouw HH et al. Middle East Respiratory Coronavirus Accessory Protein 4a Inhibits PKR-Mediated Antiviral Stress Responses. PLoS Pathog 12:e1005982 (2016). WB ; Human . Read more (PubMed: 27783669) »