Rabbit Recombinant Monoclonal Oct4 antibody. Carrier free. Suitable for ChIP-seq, IP, ChIP, WB, IHC-P, ICC/IF, Flow Cyt (Intra) and reacts with Human, Mouse samples.
pH: 7.2 - 7.4
Constituents: PBS
ChIP-seq | IP | ChIP | WB | IHC-P | ICC/IF | Flow Cyt (Intra) | |
---|---|---|---|---|---|---|---|
Human | Tested | Tested | Expected | Tested | Tested | Tested | Tested |
Mouse | Expected | Expected | Tested | Tested | Expected | Expected | Expected |
Rat | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Common marmoset | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Cow | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Horse | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Pig | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Sheep | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted | Predicted |
Species | Dilution info | Notes |
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Species Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
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Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info - | Notes The mouse recommendation is based on the WB results. We do not guarantee IHC-P for mouse as there is no suitable positive tissue in-house. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info - | Notes Purified format. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat, Sheep, Horse, Cow, Pig, Common marmoset | Dilution info - | Notes - |
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Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3'). Forms a trimeric complex with SOX2 or SOX15 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.
OCT3, OCT4, OTF3, POU5F1, Octamer-binding protein 3, Octamer-binding protein 4, Octamer-binding transcription factor 3, Oct-3, Oct-4, OTF-3
Rabbit Recombinant Monoclonal Oct4 antibody. Carrier free. Suitable for ChIP-seq, IP, ChIP, WB, IHC-P, ICC/IF, Flow Cyt (Intra) and reacts with Human, Mouse samples.
pH: 7.2 - 7.4
Constituents: PBS
Oct4 is highly expressed in undifferentiated embryonic stem cells and cancer stem cell-like cells (PMID: 26013162, 21826175). ab181557 can't detect the target band in undifferentiated cancer cell lines with low expression level of Oct4, such as HeLa, HEK-293, MDA-MB-231, HepG2, Huh7, HCT-116 and PANC-1 (PMID: 21975933, 29789579, 25625591, 26059097, 23928699, 27344963, 25837691, 29254202, 28854261, 27996162), even at the dilution of 1:200.
ab271937 is the carrier-free version of Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557.
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 monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.
This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.
Oct4 also known as POU5F1 Oct 4 protein and hecho en Oct 4 is a transcription factor important for maintaining pluripotency in stem cells. Oct4 protein has a molecular weight of approximately 40-45 kDa. Stem and germ cells express Oct4 where it regulates gene expression essential for cell differentiation and self-renewal. In immunohistochemistry (IHC) studies scientists often use Oct4 staining to identify stem cell presence and behavior.
Oct4 acts in concert with other pluripotency factors like SOX2 and NANOG to form a regulatory network essential for maintaining stem cell identity. As part of this network the Oct4 transcription factor orchestrates the expression of genes that prevent differentiation and maintain the stem cell’s undifferentiated state. The protein directly activates the transcription of target genes involved in maintaining the pluripotent state.
Oct4 plays an important role in the maintenance of pluripotency and self-renewal in the embryonic stem cell (ESC) and induced pluripotent stem cell (iPSC) pathways. Oct4 partners with proteins such as SOX2 and KLF4 in these pathways to activate and repress a common set of downstream genes which control differentiation and proliferation. Oct4 ensures the blocking of differentiation signals while promoting self-renewal in pluripotent cells.
Aberrant Oct4 expression often links to oncogenesis and tumor progression particularly in testicular germ cell tumors and certain types of cancers. Oct4 overexpression may interact with c-MYC a protein linked to cancer cell proliferation advancing tumorigenesis. Additionally researchers investigate Oct4 as a diagnostic marker for cancer and its potential as a therapeutic target to inhibit cancer cell growth.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.
In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
Chromatin was prepared from F9 (Mouse embyro testicular cancer cell line) cells according to the Abcam X-ChIP protocol. Cells were fixed with formaldehyde for 10 minutes. The ChIP was performed with 25µg of chromatin, 5µg of Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 (red, and 20µl of Anti rabbit IgG sepharose beads. 5μg of rabbit normal IgG was added to the beads control (grey). The immunoprecipitated DNA was quantified by real time PCR (Sybr green approach).
“pro” stands for promoter region, while “NC2” stands for negative control which is negative loci at the promoter region.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Oct4 was immunoprecipitated from 1mg of NCCIT (Human pluripotent embryonic carcinoma) whole cell extract with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/50 dilution. Western blot was performed from the immunoprecipitate using Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/10000 dilution. Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG, was used as secondary antibody at 1/1500 dilution.
Lane 1: NCCIT whole cell extract 10 µg (Input). Lane 2: Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 IP in NCCIT whole cell extract. Lane 3: Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 in NCCIT whole cell extract.
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 3 minutes
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
All lanes: Immunoprecipitation - Anti-Oct4 antibody [EPR17929] - ChIP Grade (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557)
Predicted band size: 38 kDa
Observed band size: 45 kDa
Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 staining OCT-4 in the human cell line NCCIT (human pluripotent embryonal carcinoma) by intracellular flow cytometry. Cells were fixed with 4% paraformaldehyde and the sample was incubated with the primary antibody at a dilution of 1/70. A goat anti rabbit IgG (Alexa Fluor® 488) at a dilution of 1/2000 was used as the secondary antibody (Red).
Isotype control: Rabbit IgG monoclonal [EPR25A] Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730 (Black).
Unlabelled control: Cell without incubation with primary antibody and secondary antibody (Blue).
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized NCCIT (Human pluripotent embryonic carcinoma) cells (positive cell line) or NIH/3T3 (Mouse embyro fibroblast) cells (negative cell line) labeling Oct4 with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/250 dilution, followed by Goat anti-rabbit IgG (Alexa Fluor® 488) (Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) secondary antibody at 1/400 dilution (green). Confocal image showing nuclear and weakly cytoplasmic staining on NCCIT cell line. Negative expression in NIH/3T3 cell line. The nuclear counter stain is DAPI (blue). Tubulin is detected with Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291 (anti-Tubulin mouse mAb) at 1/500 dilution and Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed ab150120 (AlexaFluor®594 Goat anti-Mouse secondary) at 1/500 dilution (red).
The negative controls are as follows:
-ve control 1: Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/250 dilution followed by Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed ab150120 (AlexaFluor®594 Goat anti-Mouse secondary) at 1/500 dilution.
-ve control 2: Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291 (anti-Tubulin mouse mAb) at 1/1000 dilution followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077 (Alexa Fluor®488 Goat Anti-Rabbit IgG H&L) at 1/400 dilution.This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 staining Oct4 in human embryonic stem cells by ICC/IF (Immunocytochemistry/Immunofluorescence). Cells were fixed with formaldehyde , permeabilized with 0.1% Triton in PBS for 1 hour and blocked with 10% Serum for 1 hour at 25°C. Samples were incubated with primary antibody (1/200 in PBS with 0.1% Tween20) for 16 hours at 4°C. A monoclonal Goat Anti-rabbit Alexa Fluor® 594 was used as the secondary antibody at 1/200 dilution.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Immunohistochemical analysis of paraffin-embedded human dysgerminoma of ovary tissue labeling Oct4 with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/1000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) secondary antibody at 1/500 dilution. Nuclear and weak cytoplasmic staining on cancer cells of Human dysgerminoma of ovary is observed. Counter stained with Hematoxylin.
Negative control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Immunohistochemical analysis of paraffin-embedded human breast cancer tissue labeling Oct4 with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/1000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) secondary antibody at 1/500 dilution. Negative staining on Human breast cancer. Counter stained with Hematoxylin.
Negative control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Immunohistochemical analysis of paraffin-embedded Human testis tissue labeling Oct4 with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 at 1/1000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) secondary antibody at 1/500 dilution. Negative staining on adult Human testis. Counter stained with Hematoxylin.
Negative control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500 dilution.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Chromatin was prepared from NCCIT (Human pluripotent embryonic carcinoma cell line) cells. ChIP was performed with 10^7 NCCIT cells and 8 µg of Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 [EPR17929]. ChIP DNA was sequenced on the Illumina NovaSeq 6000 to a depth of 30 million reads.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557).
Flow cytometry overlay histogram showing left NCCIT positive cells and right negative HeLa stained with Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557 (red line). The cells were fixed with 4% formaldehyde (10 min) and then permeabilised with 0.1% PBS-Triton X-100 for 15 min. The cells were then incubated in 1x PBS containing 10% normal goat serum to block non-specific protein-protein interaction followed by the antibody (Anti-Oct4 antibody [EPR17929] - ChIP Grade ab181557) (1x 106 in 100μl at 0.2μg/ml (1/10300)) for 30min at 22°C.
The secondary antibody Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed was incubated at 1/4000 for 30min at 22°C
Isotype control antibody (black line) was Recombinant Rabbit IgG, monoclonal [EPR25A] - Isotype Control used at the same concentration and conditions as the primary antibody. Unlabelled sample (blue line) was also used as a control.
Acquisition of >5000 events were collected using a 50 mW Blue laser (488nm) and 525/40 bandpass filter.
This antibody gave a positive signal in NCCIT Fixed with 80% methanol (5 min) / permeabilised with 0.1% PBS-Triton X-100 for 15 min under the same conditions.
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