• Call +1.858.633.0165 or Fax +1.858.633.0166 or Contact Us

anti-FOXP3 antibody :: Rabbit FOXP3 Polyclonal Antibody

Scan QR to view Datasheet
Catalog # MBS301812
You will be redirected to our replacement product
Immunohistochemistry (IHC)
Product Name

FOXP3, Polyclonal Antibody

Popular Item
Also Known As

Rabbit Anti-Human FOXP3 Polyclonal Antibody

Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Immunogen Sequence Length
Species Reactivity
Predicted Reactivity: Bovine, Dog, Mouse, Pig, Rabbit, Rat
0.5 ml immunogen affinity purified rabbit polyclonal antibody in PBS/1% BSA buffer pH 7.6 with less than 0.1% sodium azide.
Synthetic peptide derived from C-terminus of human FOXP3 protein.
Control Tissue
Cellular Localization
Entrez Gene Code
Transcriptional Regulators
Preparation and Storage
Store at 2-8 degree C. Do not freeze. The user must validate any other storage conditions. When properly stored, the reagent is stable to the date indicated on the label. Do not use the reagent beyond the expiration date. There are no definitive signs to indicate instability of this product; therefore, positive and negative controls should be tested simultaneously with unknown specimens. If unexpected results are observed which cannot be explained by variations in laboratory procedures and a problem with the reagent is suspected, contact Technical Support.
Other Notes
Small volumes of anti-FOXP3 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
anti-FOXP3 antibody
FOXP3 (a 431 amino acid protein) is a member of the forkhead/winged-helix family of transcriptional regulators and is highly conserved across mammals. FOXP3 is essential for normal immune homeostasis. FOXP3 is stably and constitutively expressed at a high level in CD25 + CD4 positive regulatory T cells, at low level in CD4 positive/CD25 negative cells, and is absent in CD4 negative/CD8 positive T cells. FOXP3 may be a master regulatory gene and a more specific marker of regulatory T cells than other T cells.
Applications Tested/Suitable for anti-FOXP3 antibody
Immunohistochemistry (IHC) Paraffin
Application Notes for anti-FOXP3 antibody
Immunohistochemistry Procedure
Specimen Preparation: Formalin-fixed, paraffin-embedded tissues are suitable for use with this primary antibody. Deparaffinization: Deparaffinize slides using xylene or xylene alternative and graded alcohols. Deparaffinization: Deparaffinize slides using xylene or xylene alternative and graded alcohols. dilutions are estimates; actual results may differ because of variability in methods and protocols. Antigen Retrieval: Boil tissue section in 1mM EDTA, pH 8.0 for 10 min followed by cooling at room temperature for 20 min. Primary Antibody Incubation: Incubate for 30 minutes at room temperature. Slide Washing: Slides must be washed in between steps. Rinse slides with PBS/0.05% Tween. Visualization: Detect the antibody as instructed by the instructions provided with the visualization system.
Immunohistochemistry Dilution: 1:200
IHC Positive Control: Tonsil

Immunohistochemistry (IHC) of anti-FOXP3 antibody
Human tonsil stained with anti- FOXP3 antibody
anti-FOXP3 antibody Immunohistochemistry (IHC) (IHC) image
NCBI/Uniprot data below describe general gene information for FOXP3. It may not necessarily be applicable to this product.
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
50 kDa
NCBI Official Full Name
forkhead box protein P3 isoform b
NCBI Official Synonym Full Names
forkhead box P3
NCBI Official Symbol
FOXP3  [Similar Products]
NCBI Official Synonym Symbols
  [Similar Products]
NCBI Protein Information
forkhead box protein P3; FOXP3delta7; immune dysregulation, polyendocrinopathy, enteropathy, X-linked; immunodeficiency, polyendocrinopathy, enteropathy, X-linked; scurfin
UniProt Protein Name
Forkhead box protein P3
UniProt Synonym Protein Names
Protein Family
UniProt Gene Name
FOXP3  [Similar Products]
UniProt Synonym Gene Names
UniProt Entry Name
NCBI Summary for FOXP3
The protein encoded by this gene is a member of the forkhead/winged-helix family of transcriptional regulators. Defects in this gene are the cause of immunodeficiency polyendocrinopathy, enteropathy, X-linked syndrome (IPEX), also known as X-linked autoimmunity-immunodeficiency syndrome. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]
UniProt Comments for FOXP3
FOXP3: Probable transcription factor. Plays a critical role in the control of immune response. Interacts with IKZF3. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Transcription factor; DNA-binding; C2H2-type zinc finger protein; Cell cycle regulation

Chromosomal Location of Human Ortholog: Xp11.23

Cellular Component: protein complex; cytoplasm; nucleus

Molecular Function: RNA polymerase II transcription factor activity, enhancer binding; histone acetyltransferase binding; NF-kappaB binding; protein binding; protein homodimerization activity; NFAT protein binding; sequence-specific DNA binding; metal ion binding; histone deacetylase binding; transcription corepressor activity; transcription factor activity

Biological Process: negative regulation of interleukin-10 production; positive regulation of transcription, DNA-dependent; negative regulation of cytokine secretion; myeloid cell homeostasis; T cell receptor signaling pathway; negative regulation of interleukin-2 production; negative regulation of interleukin-6 production; T cell homeostasis; tolerance induction to self antigen; negative regulation of transcription factor activity; response to virus; negative regulation of immune response; cytokine production; negative regulation of T cell cytokine production; positive regulation of peripheral T cell tolerance induction; inhibition of NF-kappaB transcription factor; regulation of T cell anergy; negative regulation of interleukin-5 production; positive regulation of transcription from RNA polymerase II promoter; negative regulation of transcription, DNA-dependent; inhibition of CREB transcription factor; negative regulation of cytokine biosynthetic process; transcription from RNA polymerase II promoter; negative regulation of interleukin-4 production; T cell activation; negative regulation of activated T cell proliferation; negative regulation of transcription from RNA polymerase II promoter; negative regulation of interferon-gamma biosynthetic process; negative regulation of histone acetylation; positive regulation of interleukin-4 production; negative regulation of cell proliferation; negative regulation of isotype switching to IgE isotypes; CD4-positive, CD25-positive, alpha-beta regulatory T cell lineage commitment; negative regulation of T cell proliferation; B cell homeostasis; regulation of transcription, DNA-dependent; negative regulation of interferon-gamma production; positive regulation of T cell anergy; regulation of isotype switching to IgG isotypes; positive regulation of transforming growth factor-beta1 production; negative regulation of chronic inflammatory response; negative regulation of histone deacetylation; T cell mediated immunity; positive regulation of immature T cell proliferation in the thymus; negative regulation of tumor necrosis factor production; chromatin remodeling; negative regulation of interleukin-17 production; positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation; negative regulation of interleukin-2 biosynthetic process; positive regulation of histone acetylation

Disease: Diabetes Mellitus, Insulin-dependent; Immunodysregulation, Polyendocrinopathy, And Enteropathy, X-linked
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
Request a Quote

Please fill out the form below and our representative will get back to you shortly.

Contact Us

Please fill out the form below and our representative will get back to you shortly.