• Product name
  • Description
    Rabbit polyclonal to Nanog
  • Host species
  • Tested applications
    Suitable for: WB, ICC/IF, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant full length Human Nanog expressed in bacteria (Q9H9S0).

  • Positive control
    • Human embryonal carcinoma NTERA-2 cells; Human embryonic stem cell line H89; Human iPS cell line HEL 11.4; NCCIT and NTERA-2 whole cell lysates.



Our Abpromise guarantee covers the use of ab155943 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 1/2000. Predicted molecular weight: 34 kDa.
ICC/IF 1/100.
IHC-P 1/100 - 1/1000. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • Function
    Transcription regulator involved in inner cell mass and embryonic stem (ES) cells proliferation and self-renewal. Imposes pluripotency on ES cells and prevents their differentiation towards extraembryonic endoderm and trophectoderm lineages. Blocks bone morphogenetic protein-induced mesoderm differentiation of ES cells by physically interacting with SMAD1 and interfering with the recruitment of coactivators to the active SMAD transcriptional complexes (By similarity). Acts as a transcriptional activator or repressor (By similarity). Binds optimally to the DNA consensus sequence 5'-TAAT[GT][GT]-3' or 5'-[CG][GA][CG]C[GC]ATTAN[GC]-3' (By similarity). When overexpressed, promotes cells to enter into S phase and proliferation.
  • Tissue specificity
    Expressed in testicular carcinoma and derived germ cell tumors (at protein level). Expressed in fetal gonads, ovary and testis. Also expressed in ovary teratocarcinoma cell line and testicular embryonic carcinoma. Not expressed in many somatic organs and oocytes.
  • Sequence similarities
    Belongs to the Nanog homeobox family.
    Contains 1 homeobox DNA-binding domain.
  • Developmental stage
    Expressed in embryonic stem (ES) and carcinoma (EC) cells. Expressed in inner cell mass (ICM) of the blastocyst and gonocytes between 14 and 19 weeks of gestation (at protein level). Not expressed in oocytes, unfertilized oocytes, 2-16 cell embryos and early morula (at protein level). Expressed in embryonic stem cells (ES). Expression decreases with ES differentiation.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • Embryonic stem cell specific homeobox protein (Nanog) antibody
    • ENK antibody
    • FLJ12581 antibody
    • hNanog antibody
    • Homeobox protein NANOG antibody
    • Homeobox transcription factor Nanog antibody
    • homeobox transcription factor Nanog-delta 48 antibody
    • NANOG antibody
    • Nanog homeobox antibody
    • NANOG_HUMAN antibody
    see all


  • Immunohistochemistry analysis of Nanog showing staining in the nucleus of paraffin-treated human testicular carcinoma (right) compared with a negative control in the absence of primary antibody (left). To expose target proteins, antigen retrieval was performed using 10mM sodium citrate (pH 6.0), microwaved for 8-15 min. Following antigen retrieval, tissues were blocked in 3% H2O2-methanol for 15 min at room temperature, washed with ddH2O and PBS, and then probed with a Nanog polyclonal antibody (ab155943) diluted by 3% BSA-PBS at a dilution of 1:500 overnight at 4°C in a humidified chamber. Tissues were washed extensively in PBST and detection was performed using an HRP-conjugated secondary antibody followed by colorimetric detection using a DAB kit. Tissues were counterstained with hematoxylin and dehydrated with ethanol and xylene to prep for mounting.

  • All lanes : Anti-Nanog antibody (ab155943) at 1/2000 dilution

    Lane 1 : NCCIT whole cell lysate
    Lane 2 : NTERA-2 whole cell lysate
    Lane 3 : HeLa whole cell lysate

    Lysates/proteins at 80 µg per lane.

    Predicted band size: 34 kDa

    4-20% Tris HCl
  • Immunofluorescent analysis of either Human embryonal carcinoma NTERA-2 cells (right) or negative control HeLa cells(left), labeling Nanog with ab155943 1/200 dilution.
  • Immunofluorescent analysis Human embryonic stem cell line H9, labeling Nanog with ab155943 at 1/100 dilution (red). DAPI staining (pink).
  • Immunoflurorescent analysis of matrigel coated and formaldehyde fixed Human iPS cell line HEL 11.4, labeling Nanog with ab155943 at dilution 1/100 (red). DAPI staining (pink).


ab155943 has not yet been referenced specifically in any publications.

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