Overview

  • Product name

    Anti-Oct4 antibody [EPR17980]
    See all Oct4 primary antibodies
  • Description

    Rabbit monoclonal [EPR17980] to Oct4
  • Host species

    Rabbit
  • Tested applications

    Suitable for: WB, IHC-P, ICC/IF, Flow Cyt, IPmore details
  • Species reactivity

    Reacts with: Mouse, Human
  • Immunogen

    Recombinant fragment within Human Oct4 aa 1-150. The exact sequence is proprietary.
    Database link: Q01860

  • Positive control

    • WB: NCCIT, Ntera-2/D1 and F9 whole cell lysates. IHC-P: Human dysgerminoma of ovary and spermatocytoma tissues. ICC/IF: NCCIT cells, F9 cells Flow Cyt: F9 cells. IP: F9 whole cell lysate.
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.

Properties

Applications

Our Abpromise guarantee covers the use of ab200834 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 1/10000. Detects a band of approximately 45 kDa (predicted molecular weight: 38 kDa).
IHC-P 1/250. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
ICC/IF Use a concentration of 5 µg/ml.
Flow Cyt 1/60.

ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.

 

IP 1/30.

Target

  • Function

    Transcription 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 specificity

    Expressed 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 similarities

    Belongs to the POU transcription factor family. Class-5 subfamily.
    Contains 1 homeobox DNA-binding domain.
    Contains 1 POU-specific domain.
  • Developmental stage

    Highly expressed in undifferentiated embryonic stem cells and expression decreases gradually after embryoid body (EB) formation.
  • Domain

    The POU-specific domain mediates interaction with PKM2.
  • Post-translational
    modifications

    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 localization

    Nucleus. 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

Images

  • All lanes : Anti-Oct4 antibody [EPR17980] (ab200834) at 1/10000 dilution

    Lane 1 : NCCIT (Human pluripotent embryonic carcinoma) whole cell lysate
    Lane 2 : NTera-2/D1 (Human malignant pluripotent embryonic carcinoma) whole cell lysate
    Lane 3 : F9 (Mouse embyro testicular cancer cell line) whole cell lysate
    Lane 4 : JAR (Human placenta choriocarcinoma cell line) whole cell lysate
    Lane 5 : RAW 264.7 (Mouse macrophage cells transformed with Abelson murine leukemia virus) whole cell lysate
    Lane 6 : Mouse testis lysate

    Lysates/proteins at 10 µg per lane.

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

    Predicted band size: 38 kDa
    Observed band size: 45 kDa
    why is the actual band size different from the predicted?


    Exposure time: 30 seconds


    Low levels of expression in adult tissues.

    Blocking/Dilution Buffer: 5% NFDM/TBST.

  • ab200834 staining Oct4 in F9 cells. The cells were fixed with 4% formaldehyde (10 min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab200834 at a 5μg/ml concentration and ab7291, Mouse monoclonal [DM1A] to alpha Tubulin, at 1μg/ml concentration, followed by a further incubation at room temperature for 1h with an anti-rabbit AlexaFluor® 488 (ab150081) at 2 μg/ml (shown in green) and an anti-mouse AlexaFluor® 594 (ab150120) at 2 μg/ml (shown in pseudocolor red).  Nuclear DNA was labelled with DAPI (shown in blue).

    Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

     

  • Immunocytochemistry/Immunofluorescence analysis of F9 (mouse embryonal carcinoma) labelling Oct4 with purified ab200834 at 1/500. Cells were fixed with 4% paraformaldehyde and permeabilized with 0.1% Triton X-100. An Alexa Fluor® 488-conjugated goat anti-rabbit IgG (1/1000) was used as the secondary antibody (Ab150077). Nuclei counterstained with DAPI (blue).

    Control: PBS only

  • All lanes : Anti-Oct4 antibody [EPR17980] (ab200834) at 1/1000 dilution

    Lane 1 : Human placenta lysate
    Lane 2 : Human fetal brain lysate
    Lane 3 : Human testis lysate

    Lysates/proteins at 10 µg per lane.

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

    Predicted band size: 38 kDa


    Exposure time: 3 minutes


    Low levels of expression in adult tissues

    Blocking/Dilution Buffer: 5% NFDM/TBST.

  • Immunohistochemical analysis of paraffin-embedded Human dysgerminoma of ovary tissue labeling Oct4 with ab200834 at 1/500 dilution, followed Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution. Nuclear and weakly cytoplasmic staining on Human dysgerminoma of ovary tissue is observed. Counter stained with Hematoxylin.

    Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

    Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

  • Immunohistochemical analysis of paraffin-embedded Human spermatocytoma tissue labeling Oct4 with ab200834 at 1/500 dilution, followed Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution. Nuclear and weakly cytoplasmic staining on Human spermatocytoma tissue is observed. Counter stained with Hematoxylin.

    Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

    Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

  • Immunohistochemical analysis of paraffin-embedded Human cerebral cortex tissue labeling Oct4 with ab200834 at 1/500 dilution, followed Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution. Human cerebral cortex tissue is a negative control for Oct4. Counter stained with Hematoxylin.

    Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

    Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

  • Flow cytometric analysis of 2% paraformaldehyde-fixed F9 (Mouse embyro testicular cancer cell line) cells labeling Oct4 with ab200834 at 1/60 dilution (red) compared with a rabbit monoclonal IgG isotype control (ab172730; black) and an unlabelled control (cells without incubation with primary antibody and secondary antibody; blue). Goat anti rabbit IgG (FITC) at 1/150 dilution was used as the secondary antibody.

  • Oct4 was immunoprecipitated from 1mg of F9 (Mouse embyro testicular cancer cell line) whole cell lysate with ab200834 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab200834 at 1/1000 dilution. Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG, was used as secondary antibody at 1/1500 dilution.

    Lane 1: F9 whole cell lysate 10 µg (Input). Lane 2: ab200834 IP in F9 whole cell lysate. Lane 3: Rabbit monoclonal IgG (ab172730) instead of ab200834 in F9 whole cell lysate.
    Blocking and dilution buffer and concentration: 5% NFDM/TBST.

    Exposure time: 5 seconds

References

ab200834 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

1-2 of 2 Abreviews or Q&A

Application
Immunocytochemistry/ Immunofluorescence
Sample
Human Cell (hiPSC derived embryoid bodies)
Permeabilization
No
Specification
hiPSC derived embryoid bodies
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C
Fixative
Paraformaldehyde

Abcam user community

Verified customer

Submitted Mar 27 2019

Application
Immunohistochemistry (Frozen sections)
Sample
Mouse Tissue sections (Testis, postnatal day 6)
Permeabilization
Yes - 0.1% Triton X-100 in PBS
Specification
Testis, postnatal day 6
Blocking step
BSA as blocking agent for 30 minute(s) · Concentration: 3% · Temperature: 20°C
Fixative
Paraformaldehyde

Mr. Bryan Niedenberger

Verified customer

Submitted Mar 04 2016

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