Recombinant Sheep TNF-alpha Protein

Name: Recombinant Sheep TNF-alpha Protein
Brand: Novus Biologicals
SKU: NBP3-11067

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-11067

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Product Specifications
Scientific Data
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Accession #

P23383

Conjugate

Unconjugated

Applications

ELISA, Western Blot

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Product Specifications

Description

Recombinant Sheep Tumor Necrosis Factor (TNF) alpha is a recombinant protein corresponding to aa 78-234 of native sheep TNF alpha.

Purity

>95%, by SDS-PAGE

Predicted Molecular Mass

17.2 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.

Protein / Peptide Type

Recombinant Protein

Scientific Data Images for Recombinant Sheep TNF-alpha Protein

ELISA: Recombinant Sheep TNF-alpha Protein [NBP3-11067]

ELISA: Recombinant Sheep TNF-alpha Protein [NBP3-11067] - Recombinant Sheep TNF alpha detected using Rabbit anti Sheep TNF alpha as the capture reagent and Rabbit anti Sheep TNF alpha:Biotin as the detection reagent followed by Streptavidin:HRP.

Formulation, Preparation and Storage

NBP3-11067

Preparation Method	Recombinant protein expressed in Pichia pastoris and purified by ion-exchange chromatography.
Formulation	PBS
Preservative	10% Trehalose
Concentration	Lyoph
Reconstitution	Reconstitute with 20 uL sterile PBS containing 0.1% carrier protein. Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. We recommend that the vial is gently mixed after reconstitution.
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -20C. Avoid freeze-thaw cycles.

Background: TNF-alpha

Tumor necrosis factor (TNF)-alpha is a pro-inflammatory cytokine belonging to the TNF superfamily that is secreted by monocytes/macrophages, T cell, and natural killer (NK), among others (1). TNF-alpha is synthesized as a 233 amino acid (aa) transmembrane protein (mTNF-alpha) with a theoretical molecular weight (MW) of 26 kDa (1,2) that forms a homotrimer. mTNF-alpha is cleaved by TNF-alpha converting enzyme (TACE) and released in its 157 aa, 17 kDa soluble form (sTNF-alpha) (1-5). Both mTNF-alpha and sTNF-alpha are capable of binding type 1 TNF receptors (TNFR1), whereas mTNF-alpha predominately binds to TNFR2 (1,2). TNF-alpha binding to its receptors causes receptor recruitment of adaptor proteins, formation of signaling complexes, and downstream signaling cascades (e.g. MAPK, NF-kappaB, and Caspase-8), leading to distinct cellular responses such as survival, proliferation, inflammation, necroptosis, and apoptosis (1-5).

TNF-alpha is critical for normal immune response; however, dysregulation of TNF-alpha production can result in various pathologies (2,4,5). Excessive production of pro-inflammatory cytokines including interleukin 1 (IL-1), IL-6, and TNF-alpha has been implicated in an array of autoimmune diseases like rheumatoid arthritis (RA), inflammatory bowel disease (IBD), and psoriasis (2,4,5). Anti-TNF monoclonal antibodies, including Infliximab, and soluble TNFR have been approved for the treatment of autoimmune and TNF-mediated diseases (5). Additionally, data suggests that TNF inhibitors can be beneficial for treating patients experiencing immune-related adverse events associated with immune checkpoint inhibitor cancer treatment (6).

References

1. Holbrook J, Lara-Reyna S, Jarosz-Griffiths H, McDermott M. Tumour necrosis factor signalling in health and disease. F1000Res. 2019;8:F1000 Faculty Rev-111. https://doi.org/10.12688/f1000research.17023.1

2. Jang DI, Lee AH, Shin HY, et al. The Role of Tumor Necrosis Factor Alpha (TNF-alpha) in Autoimmune Disease and Current TNF-alpha Inhibitors in Therapeutics. Int J Mol Sci. 2021;22(5):2719. https://doi.org/10.3390/ijms22052719

3. Horiuchi T, Mitoma H, Harashima S, Tsukamoto H, Shimoda T. Transmembrane TNF-alpha: structure, function and interaction with anti-TNF agents. Rheumatology (Oxford). 2010;49(7):1215-1228. https://doi.org/10.1093/rheumatology/keq031

4. Webster JD, Vucic D. The Balance of TNF Mediated Pathways Regulates Inflammatory Cell Death Signaling in Healthy and Diseased Tissues. Front Cell Dev Biol. 2020;8:365. https://doi.org/10.3389/fcell.2020.00365

5. Kalliolias GD, Ivashkiv LB. TNF biology, pathogenic mechanisms and emerging therapeutic strategies. Nat Rev Rheumatol. 2016; 12(1):49-62. https://doi.org/10.1038/nrrheum.2015.169

6. Chen AY, Wolchok JD, Bass AR. TNF in the era of immune checkpoint inhibitors: friend or foe?. Nat Rev Rheumatol. 2021;17(4):213-223. doi:10.1038/s41584-021-00584-4

Long Name

Tumor Necrosis Factor alpha

Alternate Names

Cachetin, DIF, TNF, TNF-A, TNFA, TNFalpha, TNFG1F, TNFSF1A, TNFSF2

Gene Symbol

TNF

UniProt

P23383 (Sheep)

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COA

Product Specific Notices for Recombinant Sheep TNF-alpha Protein

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

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