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Key Documents

ZRB1247

Sigma-Aldrich

Anti-TNFα Antibody, clone 3B20 ZooMAb® Rabbit Monoclonal

enhanced validation
greener alternative

recombinant, expressed in HEK 293 cells

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About This Item

分類程式碼代碼:
12352203

生物源

rabbit

品質等級

重組細胞

expressed in HEK 293 cells

共軛

unconjugated

抗體表格

purified antibody

抗體產品種類

primary antibodies

無性繁殖

3B20, recombinant monoclonal

描述

recombinant, expressed in HEK 293 cells

產品線

ZooMAb® learn more

形狀

lyophilized

分子量

calculated mol wt 25.64 kDa
observed mol wt ~17 kDa

純化經由

using Protein A

物種活性

human

包裝

antibody small pack of 25 μL

環保替代產品特色

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

加強驗證

recombinant expression
Learn more about Antibody Enhanced Validation

技術

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

同型

IgG

表位序列

Extracellular domain

Protein ID登錄號

UniProt登錄號

環保替代類別

運輸包裝

ambient

儲存溫度

2-8°C

目標翻譯後修改

unmodified

基因資訊

human ... TNF(7124)

一般說明

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.

特異性

Clone 3B20 is a ZooMAb® rabbit recombinant monoclonal antibody that specifically detects TNF . It targets an epitope within the extracellular domain.

免疫原

His-tagged recombinant fragment corresponding to the full-length soluble form of human TNF .

應用

Quality Control Testing

Evaluated by Western Blotting with recombinant Human TNF .

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected His-tagged recombinant soluble form of human TNF .

Tested applications

Affinity Binding Assay: A representative lot of this antibody bound TNF with a KD of 1.9 x 10-7 in an affinity binding assay.

Enzyme Immunoassay Analysis (ELISA): A representative lot of this antibody detected Human recombinant TNF in ELISA application.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected TNF in THP-1 cells.

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

標靶描述

Tumor necrosis factor (UniProt: P01375; also known as Cachectin, TNF-alpha, Tumor necrosis factor ligand superfamily member 2, TNF-a) is encoded by the TNF (also known as TNFA, TNFSF2) gene (Gene ID: 7124) in human. TNF is a pro-inflammatory cytokine that is mainly produced by activated macrophages and natural killer (NK) cells. The uncleaved molecule has a cytoplasmic domain (aa 1-35), a transmembrane domain (aa 36-56), and an extracellular domain (aa 57-233). Following its synthesis, it is cleaved into 6 different chains: Tumor necrosis factor, membrane form (NTF); Intracellular domain 1 (ICD1; aa 1-39); Intracellular domain 2 (ICD2; aa 1-35); C-domain 1; C-domain 2; and Tumor necrosis factor, soluble form (aa 77-233). The soluble form is derived from the membrane form by proteolytic processing. During synthesis, TNF translocates to the cell membrane where the TNF-converting enzyme (TACE) releases the membrane-bound 26 kDa molecule into the extracellular milieu as a 17 kDa protein. Both membrane-bound and released TNF are active but depending on their location they perform different functions. TNF mediates its biological activities through binding to type I and II TNF receptors (TNFR1 and TNFRII). Transmembrane TNF exerts its biological function in a cell-to-cell contact fashion, which is distinct from the feature of soluble TNF that acts at sites remote from the TNF -producing cells. TNF is a potent pyrogen that causes fever by its direct action or by stimulation of interleukin-1 secretion . It has been implicated in the induction of cachexia. Under certain conditions it can stimulate cell proliferation and also induce cell differentiation. It is known to impair regulatory T-cells (Treg) function in subjects with rheumatoid arthritis via dephosphorylation of FOXP3. It up-regulates the expression of protein phosphatase 1 (PP1) that dephosphorylates the key Ser-418 residue of FOXP3 and inactivates it leading to defective Treg cell function. This ZooMAbZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Nie, H., et al. (2013). Nat. Med. 19(3); 322-328; Horiuchi, T., et al. (2010). Rheumatology (Oxford). 49(7); 125-1228).

外觀

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. The PBS/trehalose components in the ZooMAb formulation can have the appearance of a semi-solid (bead like gel) after lyophilization. This is a normal phenomenon. Please follow the recommended reconstitution procedure in the data sheet to dissolve the semi-solid, bead-like, gel-appearing material. The resulting antibody solution is completely stable and functional as proven by full functional testing. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.

重構

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.

儲存和穩定性

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.

法律資訊

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

免責聲明

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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儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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