FoxP3 Antibody [FITC]


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Product Details

Reactivity Hu, MuSpecies Glossary
Applications WB, IHC, IHC-Fr
Please see the vial label for concentration. If unlisted please contact technical services.

FoxP3 Antibody [FITC] Summary

A synthetic peptide made to the C-terminal region of human FOXP3 (between residues 400-431). [UniProt# Q9BZS1]
Immunogen affinity purified
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Packaging, Storage & Formulations

Store at 4C in the dark.
FITC (A=495, E=519)
0.05% Sodium Azide
Immunogen affinity purified


  • Western Blot 1:1000-1:5000
  • Immunohistochemistry 1:50
  • Immunohistochemistry-Frozen 1:50
Application Notes
This FOXP3 antibody is useful for Immunocytochemistry/Immunofluorescence, Immunohistochemistry on frozen sections and Western Blot. By Western blot, this antibody recognizes bands at ~47.2 kDa representing FOXP3. For IHC-Fr it has been used in mouse thymus from an influenza-infected mouse or thymus from healthy mice (C57BL/6).

The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Theoretical MW
47.2 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Reactivity Notes

Human. This antibody does not appear to detect the mouse FOXP3 protein by western blot, but does work on mouse tissue for IHC (see data below).

Alternate Names for FoxP3 Antibody [FITC]

  • AIID
  • AIIDMGC141961
  • forkhead box P3
  • Forkhead Box Protein P3
  • FOXP3delta7
  • immune dysregulation, polyendocrinopathy, enteropathy, X-linked
  • Immunodeficiency, Polyendocrinopathy, Enteropathy, X-Linked
  • IPEX
  • JM2
  • MGC141961
  • MGC141963
  • PIDX
  • PIDXMGC141963
  • XPID
  • XPIDpolyendocrinopathy, enteropathy, X-linked


FOXP3 (forkhead box protein P3) belongs to forkhead/winged-helix gene family of transcription factors that regulates the development and function of immune system. Localized in the nucleus, FOXP3 interacts with IKZF3 and is a crucial factor for the generation of CD4+CD25+ regulatory T cells (Tregs) and high levels expression of FOXP3 is essential for Treg's suppressive functions. SIRT1 facilitates FOXP3' decetylation, whereas, its acetylation on lysine residues causes its stabilization and promotes differentiation of T-cells into induced Tregs. Mutations of the FOXP3 gene lead to X-linked autoimmunity-allergic dysregulation syndrome in humans (also called immunodeficiency polyendocrinopathy, enteropathy, X-linked syndrome or IPEX) and the lymphoproliferative disease in Scurfy mouse. The FOXP3 X-linked recessive mutation results in lethality in hemizygous male mice soon after birth, and is characterized by excessive proliferation of CD4+ T cells, extensive multi-organ infiltration by leukocytes and systemic elevation of numerous cytokines. FoxP3 has also been shown to function as a tumor suppressor in several types of cancer.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

Video Protocols

WB Video Protocol

FAQs for FoxP3 Antibody (NB600-245F). (Showing 1 - 3 of 3 FAQ).

  1. Does FoxP3 antibodies comes in lyophilized form?
    • FoxP3 antibodies, aka JM2 IPEX, and Scurfin antibodies, have the following products in lyophilized form: NBP1-18319, AF3240.
  2. What the theoretical molecular weight for FoxP3 antibodies?
    • The TMW of FoxP3 antibodies is approximately 47 - 52 kDa.
  3. What is the immunogen sequence of this FoxP3 antibody?
    • A synthetic sequence of amino acids 400 - 431 within the C-terminal region of Human FoxP3.

Secondary Antibodies


Isotype Controls

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Blogs on FoxP3.

Is has been established that the regulatory transcription factor FOXP3 (a member of the forkhead/winged-helix family of transcription factors) is imperative to immune system homeostasis through CD4+CD25+ regulatory T cell function.  Distinctively,...  Read full blog post.

FOXP3: Master Regulatory Transcriptional Factor
FOXP3, a forkhead family transcription factor specially expressed in regulatory T (Treg) cells, controls the expression of many key immune-regulatory genes. Treg cells are a population of T lymphocytes that have critical roles in the immune system hom...  Read full blog post.

Contact Information

Product PDFs


Gene Symbol FOXP3

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