概述

  • 产品名称Anti-IRF2抗体[EPR4644(2)]
    参阅全部 IRF2 一抗
  • 描述
    兔单克隆抗体[EPR4644(2)] to IRF2
  • 经测试应用适用于: WB, IHC-P, ICC/IFmore details
  • 种属反应性
    与反应: Mouse, Human
  • 免疫原

    Synthetic peptide (the amino acid sequence is considered to be commercially sensitive) corresponding to Human IRF2 aa 300 to the C-terminus.
    Database link: P14316

  • 阳性对照
  • 常规说明

    This product is a recombinant rabbit monoclonal antibody.

    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.

    Produced using Abcam’s RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5,675,063 and/or 7,429,487.

    A trial size is available to purchase for this antibody.

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

性能

应用

Our Abpromise guarantee covers the use of ab124744 in the following tested applications.

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

应用 Ab评论 说明
WB 1/1000. Detects a band of approximately 50 kDa (predicted molecular weight: 39 kDa).
IHC-P 1/50. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

See protocols (link: http://www.abcam.com/protocols/ihc-antigen-retrieval-protocol).

ICC/IF 1/500.

靶标

  • 功能Specifically binds to the upstream regulatory region of type I IFN and IFN-inducible MHC class I genes (the interferon consensus sequence (ICS)) and represses those genes. Also acts as an activator for several genes including H4 and IL7. Constitutively binds to the ISRE promoter to activate IL7. Involved in cell cycle regulation through binding the site II (HiNF-M) promoter region of H4 and activating transcription during cell growth. Antagonizes IRF1 transcriptional activation.
  • 组织特异性Expressed throughout the epithelium of the colon. Also expressed in lamina propria.
  • 序列相似性Belongs to the IRF family.
    Contains 1 IRF tryptophan pentad repeat DNA-binding domain.
  • 翻译后修饰Acetylated by CBP/ p300 during cell-growth. Acetylation on Lys-75 is required for stimulation of H4 promoter activity.
    The major sites of sumoylation are Lys-137 and Lys-293. Sumoylation by SUMO1 increases its transcriptional repressor activity on IRF1 and diminishes its ability to activate ISRE and H4 promoter.
  • 细胞定位Nucleus.
  • Information by UniProt
  • 数据库链接
  • 别名
    • DKFZp686F0244 antibody
    • Interferon regulatory factor 2 antibody
    • IRF 2 antibody
    • IRF-2 antibody
    • IRF2 antibody
    • IRF2_HUMAN antibody
    see all

Anti-IRF2 antibody [EPR4644(2)] 图像



  • Predicted band size : 39 kDa

    Lane 1: Wild type HAP1 whole cell lysate (20 µg)
    Lane 2: IRF2 knockout HAP1 whole cell lysate (20 µg)
    Lane 3: HeLa whole cell lysate (20 µg)
    Lane 4: CACO2 whole cell lysate (20 µg)

    Lanes 1 - 4: Merged signal (red and green). Green - ab124744 observed at 48 kDa. Red - loading control, ab18058, observed at 130 kDa.

    ab124744 was shown to recognize IRF2 when IRF2 knockout samples were used, along with additional cross-reactive bands. Wild-type and IRF2 knockout samples were subjected to SDS-PAGE.  Ab124744 and ab18058 (Mouse anti Vinculin loading control) were incubated overnight at 4°C at 1/1000 and 1/10000 dilutions respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) ab216773 and 680CW Goat anti Mouse secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.

  • All lanes : Anti-IRF2 antibody [EPR4644(2)] (ab124744) at 1/5000 dilution

    Lane 1 : SW480 (Human colorectal adenocarcinoma cell line)
    Lane 2 : HeLa (Human epithelial cells from cervix adenocarcinoma)
    Lane 3 : Jurkat (Human T cell leukemia cells from peripheral blood)

    Lysates/proteins at 20 µg per lane.

    Secondary
    Goat Anti-Rabbit IgG, (H+L),Peroxidase conjugated at 1/1000 dilution

    Predicted band size : 39 kDa
    Observed band size : 50 kDa (why is the actual band size different from the predicted?)


    Exposure time : 3 minutes

    Blocking and Diluting buffer and concentration: 5% NFDM/TBST

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human colon tissue labeling IRF2 with purified ab124744 at 1/50. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution was used as the secondary antibody. Nucleus staining on epithelium of human colon was observed. Negative control using PBS instead of primary antibody. Counterstained with Hematoxylin.

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized HeLa (Human epithelial cells from cervix adenocarcinoma) cells labeling IRF2 with ab124744 at 1/500 dilution, followed by Goat anti-rabbit IgG (Alexa Fluor® 488) (ab150077) secondary antibody at 1/500 dilution (green). Confocal image showing nuclear staining on HeLa cells.

    The nuclear counter stain is DAPI (blue). Tubulin is detected with ab7291 (anti-Tubulin mouse mAb) at 1/1000 dilution and ab150120 (AlexaFluor®594 Goat anti-Mouse secondary) at 1/500 dilution (red).
    The negative controls are as follows:
    -ve control 1: ab124744 at 1/500 dilution followed by ab150120 (AlexaFluor®594 Goat anti-Mouse secondary) at 1/500 dilution.
    -ve control 2: ab7291 (anti-Tubulin mouse mAb) at 1/1000 dilution followed by ab150077 (Alexa Fluor®488 Goat Anti-Rabbit IgG H&L) at 1/500 dilution.

     

  • All lanes : Anti-IRF2 antibody [EPR4644(2)] (ab124744) at 1/1000 dilution

    Lane 1 : Caco-2 (Human colorectal adenocarcinoma cells)
    Lane 2 : RAW 264.7 (Mouse macrophage cells transformed with Abelson murine leukemia virus)
    Lane 3 : NIH/3T3 (Mouse embyro fibroblast cells)

    Lysates/proteins at 10 µg per lane.

    Secondary
    Goat Anti-Rabbit IgG, (H+L),Peroxidase conjugated at 1/1000 dilution

    Predicted band size : 39 kDa
    Observed band size : 50 kDa (why is the actual band size different from the predicted?)


    Exposure time : 3 minutes

    Blocking and Diluting buffer and concentration: 5% NFDM/TBST

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human cervical cancer tissue labeling IRF2 with purified ab124744 at 1/50. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution was used as the secondary antibody. Nucleus staining on tumor cells of human cervix cancer was observed. Negative control using PBS instead of primary antibody. Counterstained with Hematoxylin.

  • Anti-IRF2 antibody [EPR4644(2)] (ab124744) at 1/1000 dilution + Human fetal lung lysate at 10 µg

    Secondary
    Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG at 1/1000 dilution

    Predicted band size : 39 kDa
    Observed band size : 50 kDa (why is the actual band size different from the predicted?)


    Exposure time : 3 minutes

    Blocking and Diluting buffer and concentration: 5% NFDM/TBST

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Mouse colon tissue labeling IRF2 with purified ab124744 at 1/50. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution was used as the secondary antibody. Nucleus staining on epithelial cells of mouse colon was observed. Negative control using PBS instead of primary antibody. Counterstained with Hematoxylin.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human colonic carcinoma tissue labelling IRF2 with purified ab124744 at 1/50. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. A prediluted HRP-polymer conjugated anti-rabbit IgG was used as the secondary antibody. Negative control using PBS instead of primary antibody. Counterstained with Hematoxylin.

  • Equilibrium disassociation constant (KD)
    Learn more about KD

    Click here to learn more about KD

Anti-IRF2 antibody [EPR4644(2)] (ab124744)参考文献

This product has been referenced in:
  • Camicia R  et al. BAL1/ARTD9 represses the anti-proliferative and pro-apoptotic IFN?-STAT1-IRF1-p53 axis in diffuse large B-cell lymphoma. J Cell Sci 126:1969-80 (2013). Read more (PubMed: 23487038) »

See 1 Publication for this product

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