Product nameAnti-Oct4 antibody
See all Oct4 primary antibodies
DescriptionChicken polyclonal to Oct4
Tested applicationsSuitable for: WB, ICC/IFmore details
Species reactivityReacts with: Mouse
Predicted to work with: Rat, Rabbit, Human, Pig, Chimpanzee, Chinese hamster
Synthetic peptide within Human Oct4 aa 1-100 conjugated to keyhole limpet haemocyanin. The exact sequence is proprietary.
- This antibody gave a positive signal in the following whole cell lysates: E14Tg2a; F9. IF/ICC: mES cell line.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Constituent: 3% BSA
This product may contain up to 3% BSA depending on the batch. For specific batch formulations please contact us.
Concentration information loading...
PurityProtein L purified
Purification notesAffinity Purified
Our Abpromise guarantee covers the use of ab134218 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 40 kDa (predicted molecular weight: 38 kDa).|
|ICC/IF||Use a concentration of 5 µg/ml.|
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.
modificationsSumoylation 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
- Octamer binding transcription factor 4 antibody
- MGC22487 antibody
- Oct 3 antibody
ICC/IF image of ab134218 stained mES cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab134218, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96947, DyLight® 488 goat anti-chicken IgY (H+L) used at a 1:250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1:200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM
All lanes : Anti-Oct4 antibody (ab134218) at 1 µg/ml
Lane 1 : E14Tg2a (Mouse embryonic stem cell line) Whole Cell Lysate
Lane 2 : F9 (Mouse embryonic carcinoma cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
All lanes : Goat Anti-Chicken IgY H&L (HRP) (ab6877) at 1/10000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 38 kDa
Observed band size: 40 kDa why is the actual band size different from the predicted?
Exposure time: 1 minute
This product has been referenced in:
- Dong H et al. GLI1 activation by non-classical pathway integrin avß3/ERK1/2 maintains stem cell-like phenotype of multicellular aggregates in gastric cancer peritoneal metastasis. Cell Death Dis 10:574 (2019). Read more (PubMed: 31366904) »