• Product nameAnti-Oct4 antibody
    See all Oct4 primary antibodies
  • Description
    Rabbit polyclonal to Oct4
  • Tested applicationsSuitable for: ELISA, WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Cow, Pig, Chimpanzee
  • Immunogen

    Synthetic peptide corresponding to Human Oct4 aa 114-163.


  • Positive control
    • Jurkat cell lysate.


Associated products


Our Abpromise guarantee covers the use of ab49091 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
ELISA 1/62500.
WB Use a concentration of 1.25 µg/ml. Detects a band of approximately 39 kDa (predicted molecular weight: 39 kDa). Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • FunctionTranscription factor that binds to the octamer motif (5'-ATTTGCAT-3'). Forms a trimeric complex with SOX2 on DNA and controls the expression of a number of genes involved in embryonic development such as YES1, FGF4, UTF1 and ZFP206. Critical for early embryogenesis and for embryonic stem cell pluripotency.
  • Tissue specificityExpressed in developing brain. Highest levels found in specific cell layers of the cortex, the olfactory bulb, the hippocampus and the cerebellum. Low levels of expression in adult tissues.
  • Sequence similaritiesBelongs to the POU transcription factor family. Class-5 subfamily.
    Contains 1 homeobox DNA-binding domain.
    Contains 1 POU-specific domain.
  • Developmental stageHighly expressed in undifferentiated embryonic stem cells and expression decreases gradually after embryoid body (EB) formation.
  • DomainThe POU-specific domain mediates interaction with PKM2.
  • Post-translational
    Sumoylation enhances the protein stability, DNA binding and transactivation activity. Sumoylation is required for enhanced YES1 expression.
    Ubiquitinated; undergoes 'Lys-63'-linked polyubiquitination by WWP2 leading to proteasomal degradation.
  • Cellular localizationNucleus. Expressed in a diffuse and slightly punctuate pattern.
  • Information by UniProt
  • Database links
  • Alternative names
    • Octamer binding transcription factor 4 antibody
    • MGC22487 antibody
    • Oct 3 antibody
    • Oct 4 antibody
    • Oct-3 antibody
    • Oct-4 antibody
    • OCT3 antibody
    • Oct4 antibody
    • Octamer binding protein 3 antibody
    • Octamer binding protein 4 antibody
    • Octamer binding transcription factor 3 antibody
    • Octamer-binding protein 3 antibody
    • Octamer-binding protein 4 antibody
    • Octamer-binding transcription factor 3 antibody
    • OTF 3 antibody
    • OTF 4 antibody
    • OTF-3 antibody
    • OTF3 antibody
    • OTF4 antibody
    • PO5F1_HUMAN antibody
    • POU class 5 homeobox 1 antibody
    • POU domain class 5 transcription factor 1 antibody
    • POU domain transcription factor OCT4 antibody
    • POU domain, class 5, transcription factor 1 antibody
    • POU-type homeodomain-containing DNA-binding protein antibody
    • POU5F1 antibody
    see all

Anti-Oct4 antibody images

  • Anti-Oct4 antibody (ab49091) at 1.25 µg/ml (in 5% skimmed milk/PBS) + Jurkat cell lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 39 kDa
    Observed band size : 39 kDa
    Additional bands at : 35 kDa (possible isoform).

References for Anti-Oct4 antibody (ab49091)

This product has been referenced in:
  • Li Y  et al. BMP4-directed trophoblast differentiation of human embryonic stem cells is mediated through a ?Np63+ cytotrophoblast stem cell state. Development 140:3965-76 (2013). Human . Read more (PubMed: 24004950) »
  • Kaeffer B  et al. Non-invasive exploration of neonatal gastric epithelium by using exfoliated epithelial cells. PLoS One 6:e25562 (2011). ICC/IF ; Human . Read more (PubMed: 22028779) »

See all 2 Publications for this product

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