Anti-PERK antibody (ab79483)

Overview

  • Product name
  • Description
    Rabbit polyclonal to PERK
  • Specificity
    ab79483 detects endogenous levels of total PERK protein
  • Tested applications
    Suitable for: WB, ELISA, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat
  • Immunogen

    Synthetic non-phosphopeptide derived from human PERK around the phosphorylation site of threonine 981 (RHTPGQ)

  • Positive control
    • IHC: human colon carcinoma tissue WB: extracts from MCF-7 cells

Properties

Applications

Our Abpromise guarantee covers the use of ab79483 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 1/500 - 1/1000. Predicted molecular weight: 125 kDa.
ELISA 1/40000.
IHC-P 1/50 - 1/100.

Target

  • Function
    Phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2 (EIF2), leading to its inactivation and thus to a rapid reduction of translational initiation and repression of global protein synthesis. Serves as a critical effector of unfolded protein response (UPR)-induced G1 growth arrest due to the loss of cyclin D1.
  • Tissue specificity
    Ubiquitous. A high level expression is seen in secretory tissues.
  • Involvement in disease
    Defects in EIF2AK3 are the cause of Wolcott-Rallison syndrome (WRS) [MIM:226980]; also known as multiple epiphyseal dysplasia with early-onset diabetes mellitus. WRS is a rare autosomal recessive disorder, characterized by permanent neonatal or early infancy insulin-dependent diabetes and, at a later age, epiphyseal dysplasia, osteoporosis, growth retardation and other multisystem manifestations, such as hepatic and renal dysfunctions, mental retardation and cardiovascular abnormalities.
  • Sequence similarities
    Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. GCN2 subfamily.
    Contains 1 protein kinase domain.
  • Domain
    The lumenal domain senses perturbations in protein folding in the ER, probably through reversible interaction with HSPA5/BIP.
  • Post-translational
    modifications
    Autophosphorylated.
    N-glycosylated.
  • Cellular localization
    Endoplasmic reticulum membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • DKFZp781H1925 antibody
    • E2AK3_HUMAN antibody
    • EC 2.7.11.1 antibody
    • Eif2ak3 antibody
    • Eukaryotic translation initiation factor 2 alpha kinase 3 antibody
    • Eukaryotic translation initiation factor 2-alpha kinase 3 antibody
    • Heme regulated EIF2 alpha kinase antibody
    • HRI antibody
    • HsPEK antibody
    • Pancreatic eIF2 alpha kinase antibody
    • Pancreatic eIF2-alpha kinase antibody
    • PEK antibody
    • PRKR like endoplasmic reticulum kinase antibody
    • PRKR-like endoplasmic reticulum kinase antibody
    • WRS antibody
    see all

Images

  • IHC-P image of PERK staining on human cortical sections using ab79483 (1:500). The tissue was fixed in formaldehyde and the sections were then subjected to heat mediated antigen retrieval using citric acid and permeabilized using Triton-X. The sections were them blocked using 2% BSA for 1 hour at 20°C. ab79483 was diluted 1:500 and incubated with the sections for 18 hours at 20°C. The secondary antibody used was HRP conjugated Goat polyclonal to Rabbit IgG (1:500)

    See Abreview

  • All lanes : Anti-PERK antibody (ab79483) at 1/500 dilution

    Lane 1 : extracts from MCF-7 cells
    Lane 2 : extracts from MCF-7 cells with immunising peptide at 10 µg

    Lysates/proteins at 30 µg per lane.


    Predicted band size : 125 kDa
    Observed band size : 125 kDa
  • Immunohistochemistry analysis of paraffin-embedded human colon carcinoma tissue, stained with ab79483 at 1/50-1/100 dilution, in the absence and presence of the immunising peptide

References

ab79483 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

Abcam has not validated the combination of species/application used in this Abreview.
Application
Western blot
Sample
Mouse Cell lysate - whole cell (MEF)
Gel Running Conditions
Reduced Denaturing (8%)
Loading amount
30 µg
Treatment
3 ´M Tunicamycin 0-24 h
Specification
MEF
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C
Username

Abcam user community

Verified customer

Submitted Jan 31 2017

Application
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 2% · Temperature: 20°C
Antigen retrieval step
Heat mediated - Buffer/Enzyme Used: Citric acid
Sample
Human Tissue sections (Cortical section)
Specification
Cortical section
Permeabilization
Yes - Triton-X
Fixative
Formaldehyde
Username

Dr. Martin Broadstock

Verified customer

Submitted Feb 21 2014

Abreviews
Abcam has not validated the combination of species/application used in this Abreview.
Application
Western blot
Sample
Mouse Cell lysate - whole cell (Heart, skeletal muscle, liver)
Loading amount
60 µg
Specification
Heart, skeletal muscle, liver
Gel Running Conditions
Non-reduced Denaturing (10)
Blocking step
Milk as blocking agent for 1 hour(s) and 30 minute(s) · Concentration: 5% · Temperature: RT°C
Username

Mr. Mtuhtu S.Gounder

Verified customer

Submitted Dec 21 2012

Thank you for your phone call. Please find you discount code and the conditions of use below:

DISCOUNT CODE: xxx
Expiration date: xxx

I am very pleased to hear you would like to accept our offer and test ab79483 in mouse. This...

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Thank you for providing that information.

As I mentioned previously, with the exception of ab79483, we do guarantee that these antibodies should work in western blot on rat tissue. If we cannot resolve the issue you are having with the antibod...

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Thank you for contacting Abcam.

I am sorry that you are having some issues with our antibodies. All of the antibodies you mentioned should work in western blot in various species, however only ab30315 is known to work in IHC-P. Below is a list...

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Application
Western blot
Sample
Rat Cell lysate - whole cell (glioma)
Loading amount
20 µg
Specification
glioma
Gel Running Conditions
Reduced Denaturing
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
Username

Abcam user community

Verified customer

Submitted Apr 04 2012

Thank you for your call today and for your questions. As we discussed, I would be happy to help resolve the issues with the antibodies that you have purchased. Could you please send the following information about the protocol and results using ab79483...

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DISCOUNT CODES: ab96481 : ******** ab79483 : ******** ab25898 : ******** Expiration date: DD MM YYYY I am very pleased to hear you would like to accept our offer and test these antibodies in rat. This code will give you 1 free primary for eac...

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

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