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ZRB1565

Sigma-Aldrich

Anti-FoxP3 Antibody, clone 4J2 ZooMAb® Rabbit Monoclonal

enhanced validation
greener alternative

recombinant, expressed in HEK 293 cells

Synonym(s):

Forkhead box protein P3, Scurfin

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

recombinant

expressed in HEK 293 cells

conjugate

unconjugated

antibody form

purified antibody

antibody product type

primary antibodies

clone

4J2, monoclonal
recombinant monoclonal

product line

ZooMAb® learn more

form

lyophilized

mol wt

calculated mol wt 47.24 kDa
observed mol wt ~51 kDa

species reactivity

human

species reactivity (predicted by homology)

monkey, bovine

packaging

antibody small pack of 25 μL

greener alternative product characteristics

Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

enhanced validation

recombinant expression
Learn more about Antibody Enhanced Validation

sustainability

Greener Alternative Product

technique(s)

affinity binding assay: suitable
immunocytochemistry: suitable
western blot: suitable

isotype

IgG

UniProt accession no.

greener alternative category

shipped in

ambient

storage temp.

2-8°C

target post-translational modification

unmodified

Gene Information

bovine ... Foxp3(506053)
human ... FOXP3(50943)
rhesus monkey ... Foxp3(574303)

General description

We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information.
ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.

Learn more about ZooMAb here.

Specificity

Clone 4J2 is a ZooMAb rabbit recombinant monoclonal antibody that specifically detects Forkhead box protein P3 (FoxP3). It targets an epitope within 14 amino acids from the C-terminal, the DNA binding domain.

Immunogen

KLH-conjugated linear peptide corresponding to 14 amino acids from the C-terminal, DNA-binding region of human Forkhead box protein P3.

Application

Anti-FoxP3, clone 4J2 ZooMAb, Cat. No. ZRB1565, is a recombinant Rabbit monoclonal antibody that specifically targets FoxP3 and is tested for use in Affinity Binding Assay, Immunocytochemistry, and Western Blotting.
Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected FoxP3 in HeLa cells.

Affinity Binding Assay: A representative lot of this antibody bound FoxP3 peptide with a KD of 1.7 x 10-7 in an affinity binding assay.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user

Target description

Forkhead box protein P3 (UniProt: Q9BZS1; also known as Scurfin, FoxP3) I encoded by the FOXP3 (also known as IPEX, JM2) gene (Gene ID: 50943) in human. FoxP3 is homodimeric protein that Is predominantly expressed in the cytoplasm in activated conventional T-cells whereas it is mainly expressed in the nucleus in regulatory T-cells (Treg). It serves as a transcriptional regulator and is crucial for the development and inhibitory function of regulatory T-cells. The 41 kDa form derived by proteolytic processing is found exclusively in the chromatin fraction of activated Treg cells. Its levels are reported to be down-regulated in regulatory T-cells during inflammation. FoxP3 can undergo proteolytic cleavage in activated regulatory T-cells and can be cleaved at either the N- (aa 51-52) or C-terminal (aa 417-418) site, or at both sites. FoxP3 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. Its dimerization is reported to be essential for its transcriptional regulator activity. Is phosphorylation at serine 418 is shown to regulate its transcriptional repressor activity and consequently, regulatory T-cells suppressive function. FoxP3 is synthesized with a propeptide (aa 418-431), which is subsequently cleaved off in the mature form. Its nuclear localization signal is in the amino acids 414-417 and 68-76 and its nuclear export signal is localized in amino acids 239-249. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals.

Physical form

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS, 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.

Reconstitution

300 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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