Recombinant Human Tumor Necrosis Factor-alpha

SKU:BHP11000791
Suppliers
ProSpec-Tany TechnoGene Ltd
ProSpec-Tany TechnoGene Ltd
Details Products
Overview
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RUO recombinant Tumor Necrosis Factor-alpha (Human) protein for mechanistic studies and assay development. Supplied as a traceable protein input (E. coli; >95% (SDS-PAGE) purity; lyophilized; MW 17.5 kDa) for reproducible assay inputs.
Target TNFSF2
Species Human
Options selector
Catalog no. Size
cyt-223-10UG 10 ug
cyt-223-50UG 50 ug
cyt-223-1MG 1 mg
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size (3) — 10 ug, 50 ug, 1 mg
  • Lead time: options listed as “in stock at manufacturer” typically ship in 5–7 business days; other statuses may take longer.
  • Storage: Lyophilized Tumor Necrosis Factor-a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution TNF-a should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
  • Shipping: cold-chain shipment (typically with ice packs).
  • Upon receipt: store at the recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Mfr No cyt-223
Alternative Names TNF-alpha, Tumor necrosis factor ligand superfamily member 2, TNF-a, Cachectin, DIF, TNFA, TNFSF2.
Biological Activity The Specific Activity is > 5.0×10 7 IU/mg as determined by the cytolysis of murine L929 cells in the presence of Actinomycin D.
Cellular Localization Secreted/Extracellular
Concentration 1 mg/ml
Expression System
  • E. coli
Form Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation TNF-a Human was lyophilized from a concentrated 1mg/ml solution containing 20mM PB, pH-7.2, and 100mM NaCl.
Product Type
  • Proteins & Peptides
  • Cytokines and Growth Factors
  • TNF Superfamily
Protein Length 158
Protein Size 17.5 kDa
Purity Greater than 95.0% as determined by:<br>(a) Analysis by RP-HPLC.<br>(b) Analysis by SDS-PAGE.
Solubility It is recommended to reconstitute the lyophilized Tumor Necrosis Factor-alpha in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Source Escherichia Coli.
Species Human
Storage Lyophilized Tumor Necrosis Factor-a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution TNF-a should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Target TNFSF2

Recombinant Human Tumor Necrosis Factor-alpha is supplied as a recombinant protein for in vitro research use.

Background

Tumor necrosis factor is a cytokine involved in systemic inflammation and is a member of a group of cytokines that all stimulate the acute phase reaction. TNF is mainly secreted by macrophages. TNF causes apoptotic cell death, cellular proliferation, differentiation, inflammation, tumorigenesis and viral replication, TNF is also involved in lipid metabolism, and coagulation. TNF's primary role is in the regulation of immune cells. Dysregulation and, in particular, overproduction of TNF have been implicated in a variety of human diseases- autoimmune diseases, INS resistance, and cancer.

TNF Alpha Human: An Overview of Its Role and Importance in Immunology TNF alpha human, also known as Tumor Necrosis Factor-alpha, is a critical cytokine in the immune system. Macrophages mainly produce this protein, and it plays a key role in inflammation and the acute phase reaction. This protein is involved in various cellular functions, including cell death, differentiation, proliferation, and immune regulation. Production and Properties Tumor Necrosis Factor-alpha is produced recombinantly in E. coli and consists of a single, non-glycosylated polypeptide chain. It includes 157 amino acids of the mature human TNF-alpha and an N-terminal methionine, resulting in a molecular mass of approximately 17.5 kDa. Furthermore, the protein is purified through standard chromatographic techniques to ensure high purity and biological activity. Solubility and Usage The lyophilized form of TNF appears as a sterile, white powder. It is recommended to reconstitute this powder in sterile water to achieve a solution of no less than 100µg/ml. This solution can then be further diluted for various experimental applications. TNF alpha is used extensively in research, particularly for studying its effects on cell signaling and immune response. Storage and Stability For long-term storage, TNF should be kept desiccated below -18°C. Once reconstituted, it should be used within a week if stored at 4°C or kept below -18°C for future use. Avoiding freeze-thaw cycles is crucial to maintain the protein's functionality. Biological Role and Implications TNF alpha human is involved in the regulation of immune cells and is known for its role in inflammatory processes. Dysregulation of TNF alpha production is linked to various diseases, such as autoimmune disorders, insulin resistance, and cancer. It is also a target for therapeutic interventions, particularly in conditions like rheumatoid arthritis and inflammatory bowel disease. Mechanism of Action TNF alpha can induce fever, apoptotic cell death, and can inhibit tumorigenesis and viral replication. Moreover, it is a potent mediator of the acute phase reaction, which influences the activity of various cells involved in systemic inflammation. Research and Clinical Importance Scientific research on TNF has provided insights into its complex role in disease mechanisms. Its interaction with receptors such as TNFRSF1A underscores its multifaceted effects across different organ systems, from liver function to brain activity. Ongoing studies continue to explore its therapeutic potential, especially how it can be modulated to treat diseases without harmful side effects. In essence, TNF alpha human is a versatile and powerful component of the immune system, important for both health and disease. Understanding its pathways and functions helps scientists develop better treatments for various inflammatory and autoimmune diseases.

Product format

Provided as a recombinant protein suitable for in vitro workflows such as binding studies, screening, and assay development. Refer to the specifications table for expression format and molecular properties.

What is the purity of Recombinant Human Tumor Necrosis Factor-alpha (Human)?
Greater than 95.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE. BioHippo includes a Certificate of Analysis (CoA) confirming purity per lot with every order.
What buffer / formulation is this protein supplied in?
Supplied as: TNF-a Human was lyophilized from a concentrated 1mg/ml solution containing 20mM PB, pH-7.2, and 100mM NaCl. Reconstitute lyophilized material in sterile ultrapure water or the recommended buffer per the datasheet prior to use.
How should Recombinant Human Tumor Necrosis Factor-alpha (Human) be stored?
Lyophilized Tumor Necrosis Factor-a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution TNF-a should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. Prepare single-use aliquots after reconstitution to avoid repeated freeze–thaw cycles.
What expression system was used to produce this protein?
This recombinant protein was expressed in E. coli. The system was selected to achieve high yield, correct folding, and appropriate post-translational modifications.
Is this protein biologically active?
The Specific Activity is > 5.0×10 7 IU/mg as determined by the cytolysis of murine L929 cells in the presence of Actinomycin D. Refer to the product datasheet for recommended assay conditions and controls.
Is this protein approved for clinical or in vitro diagnostic use?
No. Supplied for Research Use Only (RUO) — not intended for therapeutic applications or in vitro diagnostic procedures.
Can I request a custom size, tag variant, or formulation?
Yes. BioHippo can accommodate custom requests including alternative sizes, His/GST/Fc tag variants, bulk quantities, and custom formulations. See the Customization & Add-ons tab or email support@biohippo.com.

Can’t Find What You’re Looking For? We can help you source the best match or customize a recombinant protein solution for your study. Options may include species (human/mouse/rat), protein region/domain (full-length vs fragment), tag or label (His/GST/FLAG/biotin/fluorescent), expression system (E. coli/HEK293/insect), purity grade, formulation (buffer, carrier-free, glycerol-free), activity/functional validation (binding or enzymatic assays), endotoxin level (low-endotoxin for cell-based work), mutants/variants (point mutations, isoforms), and bulk or custom packaging. Click Talk to a Scientist to submit a request form, email us at support@biohippo.com, or explore our Research Services for additional support. Our team will be in contact with you shortly.

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