What is a Biosimilar antibody?

A Biosimilar antibody is a non-therpeutic, recombinantly-expressed antibody which has the same sequence as the corresponding therapeutic antibody. It is for research use only. The nomenclature of the Biosimilar antibody includes the name of the therapeutic antibody. For example, Catalog # MAB9577 is called Human EGFR (Research Grade CetuxiMab Biosimilar) antibody.

Does this Biosimilar antibody have the same sequence as its corresponding therapeutic antibody?

This Biosimilar antibody has the same variable region sequence as the therapeutic antibody, but the constant region is not the same. It contains a proprietary human IgG constant region.

Human TNF-alpha (Research Grade Adalimumab Biosimilar) Antibody

Catalog #: MAB9677
1 Citation Datasheet / COA / SDS

Recombinant Monoclonal Antibody For Research Use Only

Catalog #	Availability	Size / Price	Qty
MAB9677-100
MAB9677-SP

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Detection of TNF‑ alpha in Human PBMCs by Flow Cytometry.

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Product Details

Citations (1)

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human TNF-alpha (Research Grade Adalimumab Biosimilar) Antibody Summary

Species Reactivity

Human

Specificity

Detects human TNF- alpha in direct ELISAs. This non-therapeutic antibody uses the same variable region sequence as the therapeutic antibody Adalimumab. This product is for research use only.

Source

Recombinant Monoclonal Human IgG₁ Clone # Hu7

Purification

Protein A or G purified from cell culture supernatant

Immunogen

Human TNF‑ alpha

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Intracellular Staining by Flow Cytometry

0.25 µg/10⁶ cells

See below

Neutralization

Measured by its ability to neutralize TNF‑ alpha -induced cytotoxicity in the L‑929 mouse fibroblast cell line. Matthews, N. and M.L. Neale (1987) in Lymphokines and Interferons, A Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 221. The Neutralization Dose (ND₅₀) is typically 2-12 ng/mL in the presence of 0.25 ng/mL Recombinant Human TNF‑ alpha and actinomycin D.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Intracellular Staining by Flow Cytometry

Detection of TNF- alpha antibody in Human PBMCs antibody by Flow Cytometry.

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Detection of TNF‑ alpha in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) (A) treated with PMA and Ca2+ ionomycin overnight, or (B) resting, were stained with Human Anti-Human TNF- alpha (Research Grade Adalimumab Biosimilar) Monoclonal Antibody (Catalog # MAB9677) followed by Goat anti-Human APC-conjugated Secondary Antibody (Catalog # F0135) and Mouse anti-Human CD3 PE-conjugated Monoclonal Antibody (Catalog # FAB100P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

Neutralization

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Cytotoxicity Induced by TNF-alpha and Neutralization by Human TNF-alpha Antibody. Recombinant Human TNF-a (Catalog # 210-TA) induces cytotoxicity in the the L-929 mouse fibroblast cell line in a dose-dependent manner (orange line), as measured by Resazurin (Catalog # AR002). Cytotoxicity elicited by Recombinant Human TNF-a (0.25 ng/mL) is neutralized (green line) by increasing concentrations of Human Anti-Human TNF-a (Research Grade Adalimumab Biosimilar) Monoclonal Antibody (Catalog # MAB9677). The ND₅₀ is typically 2-12 ng/mL in the presence of the metabolic inhibitor actinomycin D.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: TNF-alpha

Adalimumab is a biosimilar directed against the extracellular domain of TNF- alpha. This constitutes the immunogen used for the anti-Idiotype catalog numbers MAB9616 and MAB9546. The biotinylated antibody (catalog number IC9677B) can be used in flow cytometry or various assay format to measure EGFR expression and can be detected by conjugated streptavidin.

Long Name

Tumor Necrosis Factor alpha

Entrez Gene IDs

7124 (Human); 21926 (Mouse); 24835 (Rat); 397086 (Porcine); 280943 (Bovine); 403922 (Canine); 102139631 (Cynomolgus Monkey); 100033834 (Equine); 493755 (Feline); 100009088 (Rabbit)

Alternate Names

APC1 protein; Cachectin; Cachetin; DIF; TNF; TNF, monocyte-derived; TNFA; TNF-A; TNFalpha; TNF-alpha; TNF-alphacachectin; TNFATNF, macrophage-derived; TNFG1F; TNFSF1A; TNFSF2; TNFSF2TNF superfamily, member 2; tumor necrosis factor (TNF superfamily, member 2); tumor necrosis factor alpha; Tumor necrosis factor ligand superfamily member 2; tumor necrosis factor; tumor necrosis factor-alpha

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

Citation for Human TNF-alpha (Research Grade Adalimumab Biosimilar) Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

Population-wide diversity and stability of serum antibody epitope repertoires against human microbiota
Authors: T Vogl, S Klompus, S Leviatan, IN Kalka, A Weinberger, C Wijmenga, J Fu, A Zhernakova, RK Weersma, E Segal
Nature Medicine, 2021-07-19;0(0):.
Species: Staphylococcus, Streptococcus
Sample Types:
Applications: Neutralization Control

FAQs

What is a Biosimilar antibody?
- A Biosimilar antibody is a non-therpeutic, recombinantly-expressed antibody which has the same sequence as the corresponding therapeutic antibody. It is for research use only. The nomenclature of the Biosimilar antibody includes the name of the therapeutic antibody. For example, Catalog # MAB9577 is called Human EGFR (Research Grade CetuxiMab Biosimilar) antibody.
Does this Biosimilar antibody have the same sequence as its corresponding therapeutic antibody?
- This Biosimilar antibody has the same variable region sequence as the therapeutic antibody, but the constant region is not the same. It contains a proprietary human IgG constant region.

View all Antibody FAQs