Anti-Keap1 antibody (ab139729)

Rabbit polyclonal Keap1 antibody. Validated in WB, ICC/IF and tested in Mouse, Rat, Human. Cited in 4 publication(s). Immunogen corresponding to synthetic peptide.


  • Product name

  • Description

    Rabbit polyclonal to Keap1
  • Host species

  • Tested applications

    Suitable for: WB, ICC/IFmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide corresponding to 19 amino acids near the C-terminus of Human Keap1 (NP_987096).

  • Positive control

    • Recombinant Human Keap1 protein (ab132384) can be used as a positive control in WB. Human lung tissue lysate.


  • Form

  • Storage instructions

    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid repeated freeze / thaw cycles.
  • Storage buffer

    Preservative: 0.02% Sodium azide
    Constituent: 99% PBS
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab139729 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 Use a concentration of 1 - 2 µg/ml. Predicted molecular weight: 70 kDa.
ICC/IF Use a concentration of 20 µg/ml.


  • Function

    Retains NFE2L2/NRF2 in the cytosol. Functions as substrate adapter protein for the E3 ubiquitin ligase complex formed by CUL3 and RBX1. Targets NFE2L2/NRF2 for ubiquitination and degradation by the proteasome, thus resulting in the suppression of its transcriptional activity and the repression of antioxidant response element-mediated detoxifying enzyme gene expression. May also retain BPTF in the cytosol. Targets PGAM5 for ubiquitination and degradation by the proteasome.
  • Tissue specificity

    Broadly expressed, with highest levels in skeletal muscle.
  • Sequence similarities

    Contains 1 BACK (BTB/Kelch associated) domain.
    Contains 1 BTB (POZ) domain.
    Contains 6 Kelch repeats.
  • Domain

    The Kelch repeats mediate interaction with NF2L2/NRF2, BPTF and PGAM5.
  • Post-translational

    Ubiquitinated and subject to proteasomal degradation.
  • Cellular localization

    Cytoplasm. Nucleus. Shuttles between cytoplasm and nucleus.
  • Information by UniProt
  • Database links

  • Alternative names

    • Cytosolic inhibitor of Nrf2 antibody
    • INrf 2 antibody
    • INrf2 antibody
    • Keap 1 antibody
    • KEAP1 antibody
    • KEAP1_HUMAN antibody
    • Kelch like ECH associated protein 1 antibody
    • Kelch like family member 19 antibody
    • Kelch like protein 19 antibody
    • Kelch-like ECH-associated protein 1 antibody
    • Kelch-like protein 19 antibody
    • KIAA0132 antibody
    • KLHL 19 antibody
    • KLHL19 antibody
    • MGC10630 antibody
    • MGC1114 antibody
    • MGC20887 antibody
    • MGC4407 antibody
    • MGC9454 antibody
    see all


  • Immunofluorescence of Keap1 in Human lung tissue with ab139727 at 20 ug/mL.
  • Lane 1 : Anti-Keap1 antibody (ab139729) at 1 µg/ml
    Lane 2 : Anti-Keap1 antibody (ab139729) at 2 µg/ml

    All lanes : Human lung tissue lysate

    Lysates/proteins at 15 µg per lane.

    Predicted band size: 70 kDa


This product has been referenced in:

  • Zhang S  et al. A novel, highly-water-soluble apigenin derivative provides neuroprotection following ischemia in male rats by regulating the ERK/Nrf2/HO-1 pathway. Eur J Pharmacol 855:208-215 (2019). Read more (PubMed: 30880180) »
  • Chen L  et al. Unilateral ureteral obstruction causes gut microbial dysbiosis and metabolome disorders contributing to tubulointerstitial fibrosis. Exp Mol Med 51:38 (2019). Read more (PubMed: 30918245) »
See all 9 Publications for this product

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