• Western blot analysis of extracts of various cell lines, using FOXP3 antibody (STJ27673) at 1:1000 dilution.Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution.Lysates/proteins: 25ug per lane.Blocking buffer: 3% nonfat dry milk in TBST.Detection: ECL Basic Kit.Exposure time: 30s.

Anti-FOXP3 antibody (STJ27673)

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Host: Rabbit
Applications: WB
Reactivity: Human, Mouse, Rat
Short Description: Rabbit polyclonal primary antibody against FOXP3.
Clonality: Polyclonal
Conjugation: Unconjugated
Formulation: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
Purification: Affinity purification
Storage Instruction: Store at-20°C. Avoid freeze/thaw cycles.
Isotype: IgG
Dilution Range: WB: 1:500-1:2000
Gene ID: 50943
Gene Symbol: FOXP3
Immunogen: Recombinant fusion protein containing a sequence corresponding to amino acids 180-300 of human FOXP3 (NP_001107849.1).
Background 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.
Post Translational Modifications Polyubiquitinated, leading to its proteasomal degradation in regulatory T-cells (Treg) which is mediated by STUB1 in a HSPA1A/B-dependent manner. Deubiquitinated by USP7 leading to increase in protein stability. Phosphorylation at Ser-418 regulates its transcriptional repressor activity and consequently, regulatory T-cells (Treg) suppressive function. Dephosphorylated at Ser-418 by protein phosphatase 1 (PP1) in Treg cells derived from patients with rheumatoid arthritis. Phosphorylation by CDK2 negatively regulates its transcriptional activity and protein stability. Acetylation on lysine residues stabilizes FOXP3 and promotes differentiation of T-cells into induced regulatory T-cells (iTregs) associated with suppressive functions. Deacetylated by SIRT1. Undergoes proteolytic cleavage in activated regulatory T-cells (Treg), and can be cleaved at either the N- or C-terminal site, or at both sites.
Function Transcriptional regulator which is crucial for the development and inhibitory function of regulatory T-cells (Treg). Plays an essential role in maintaining homeostasis of the immune system by allowing the acquisition of full suppressive function and stability of the Treg lineage, and by directly modulating the expansion and function of conventional T-cells. Can act either as a transcriptional repressor or a transcriptional activator depending on its interactions with other transcription factors, histone acetylases and deacetylases. The suppressive activity of Treg involves the coordinate activation of many genes, including CTLA4 and TNFRSF18 by FOXP3 along with repression of genes encoding cytokines such as interleukin-2 (IL2) and interferon-gamma (IFNG). Inhibits cytokine production and T-cell effector function by repressing the activity of two key transcription factors, RELA and NFATC2. Mediates transcriptional repression of IL2 via its association with histone acetylase KAT5 and histone deacetylase HDAC7. Can activate the expression of TNFRSF18, IL2RA and CTLA4 and repress the expression of IL2 and IFNG via its association with transcription factor RUNX1. Inhibits the differentiation of IL17 producing helper T-cells (Th17) by antagonizing RORC function, leading to down-regulation of IL17 expression, favoring Treg development. Inhibits the transcriptional activator activity of RORA. Can repress the expression of IL2 and IFNG via its association with transcription factor IKZF4.
Database Links Reactome: R-HSA-8877330
Cellular Localisation Nucleus
Predominantly Expressed In The Cytoplasm In Activated Conventional T-Cells Whereas Predominantly Expressed In The Nucleus In Regulatory T-Cells (Treg)
The 41 Kda Form Derived By Proteolytic Processing Is Found Exclusively In The Chromatin Fraction Of Activated Treg Cells
Protein Name Forkhead Box Protein P3
Scurfin Cleaved Into - Forkhead Box Protein P3 - C-Terminally Processed - Forkhead Box Protein P3 41 Kda Form
Alternative Names Anti-Forkhead Box Protein P3 antibody
Anti-Scurfin Cleaved Into - Forkhead Box Protein P3 - C-Terminally Processed - Forkhead Box Protein P3 41 Kda Form antibody
Anti-FOXP3 antibody
Anti-IPEX antibody
Anti-JM2 antibody

Information sourced from uniprot.org

6 months standard