Anti-IKB alpha (phospho S32) antibody [EPR3148] (ab92700)


  • Product nameAnti-IKB alpha (phospho S32) antibody [EPR3148]
    See all IKB alpha primary antibodies
  • Description
    Rabbit monoclonal [EPR3148] to IKB alpha (phospho S32)
  • Tested applicationsSuitable for: WB, IP, ICCmore details
    Unsuitable for: Flow Cyt or IHC-P
  • Species reactivity
    Reacts with: Human
  • Immunogen

    A phospho-specific peptide corresponding to residues surrounding Serine 32 of Human IKB alpha.

  • Positive control
    • HeLa cell lysate treated with Calyculin A and TNF-a
  • General notes

    This product is a recombinant rabbit monoclonal antibody.

    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.

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



Our Abpromise guarantee covers the use of ab92700 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
  • Application notesICC: 1/50 - 1/100.
    IP: 1/10 - 1/100.
    WB: 1/1000 - 1/10000. Predicted molecular weight: 36 kDa.

    Is unsuitable for Flow Cyt or IHC.

    Not yet tested in other applications.
    Optimal dilutions/concentrations should be determined by the end user.
  • Target

    • FunctionInhibits the activity of dimeric NF-kappa-B/REL complexes by trapping REL dimers in the cytoplasm through masking of their nuclear localization signals. On cellular stimulation by immune and proinflammatory responses, becomes phosphorylated promoting ubiquitination and degradation, enabling the dimeric RELA to translocate to the nucleus and activate transcription.
    • Involvement in diseaseEctodermal dysplasia, anhidrotic, with T-cell immunodeficiency autosomal dominant
    • Sequence similaritiesBelongs to the NF-kappa-B inhibitor family.
      Contains 5 ANK repeats.
    • Post-translational
      Phosphorylated; disables inhibition of NF-kappa-B DNA-binding activity. Phosphorylation at positions 32 and 36 is prerequisite to recognition by UBE2D3 leading to polyubiquitination and subsequent degradation.
      Sumoylated; sumoylation requires the presence of the nuclear import signal. Sumoylation blocks ubiquitination and proteasome-mediated degradation of the protein thereby increasing the protein stability.
      Monoubiquitinated at Lys-21 and/or Lys-22 by UBE2D3. Ubiquitin chain elongation is then performed by CDC34 in cooperation with the SCF(FBXW11) E3 ligase complex, building ubiquitin chains from the UBE2D3-primed NFKBIA-linked ubiquitin. The resulting polyubiquitination leads to protein degradation. Also ubiquitinated by SCF(BTRC) following stimulus-dependent phosphorylation at Ser-32 and Ser-36.
      Deubiquitinated by porcine reproductive and respiratory syndrome virus Nsp2 protein, which thereby interferes with NFKBIA degradation and impairs subsequent NF-kappa-B activation.
    • Cellular localizationCytoplasm. Nucleus. Shuttles between the nucleus and the cytoplasm by a nuclear localization signal (NLS) and a CRM1-dependent nuclear export.
    • Information by UniProt
    • Database links
    • Alternative names
      • I kappa B alpha antibody
      • I-kappa-B-alpha antibody
      • IkappaBalpha antibody
      • IkB-alpha antibody
      • IKBA antibody
      • IKBA_HUMAN antibody
      • IKBalpha antibody
      • MAD 3 antibody
      • MAD3 antibody
      • Major histocompatibility complex enhancer-binding protein MAD3 antibody
      • NF kappa B inhibitor alpha antibody
      • NF-kappa-B inhibitor alpha antibody
      • NFKBI antibody
      • NFKBIA antibody
      • Nuclear factor of kappa light chain gene enhancer in B cells antibody
      • Nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor alpha antibody
      see all

    Anti-IKB alpha (phospho S32) antibody [EPR3148] images

    • All lanes : Anti-IKB alpha (phospho S32) antibody [EPR3148] (ab92700) at 1/1000 dilution

      Lane 1 : HeLa cell lysate untreated
      Lane 2 : HeLa cell lysate treated with Calyculin A and TNF-a

      Lysates/proteins at 10 µg per lane.

      HRP-labeled goat anti-rabbit at 1/2000 dilution

      Predicted band size : 36 kDa

    References for Anti-IKB alpha (phospho S32) antibody [EPR3148] (ab92700)

    This product has been referenced in:
    • Liu Y  et al. The natural compound magnolol inhibits invasion and exhibits potential in human breast cancer therapy. Sci Rep 3:3098 (2013). WB ; Human . Read more (PubMed: 24226295) »
    • Kiefel H  et al. EMT-associated up-regulation of L1CAM provides insights into L1CAM-mediated integrin signalling and NF-?B activation. Carcinogenesis 33:1919-29 (2012). Human . Read more (PubMed: 22764136) »

    See all 2 Publications for this product

    Product Wall

    Thank you for your reply.

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