Rat TNF-alpha Protein


SDS-Page: Rat TNF-alpha Protein [NBP2-35300]

Product Details

Reactivity RtSpecies Glossary
Applications Func, PAGE

Order Details

Rat TNF-alpha Protein Summary

A single, non-glycosylated biologically active polypeptide chain corresponding to 156 residues of TNF.

Source: E. coli


Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
TNF alpha Protein is fully biologically active when compared to standard. The ED50 as determined by a cytotoxicity assay using murine L929 cells is less than 0.05 ng/ml, corresponding to a specific activity of > 2.0 x 10^7 IU/mg in the presence of actinomycin D.
Size Exclusion Chromatography
Endotoxin Note
Less than 1 EU/ug of endotoxin as determined by LAL method.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Size Exclusion Chromatography
Reconstitution Instructions
Reconstitute with sterilized distilled water or 0.1% BSA aqueous buffer to a final concentration of 0.1 - 1.0 mg/ml.


Theoretical MW
17.2 kDa


This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Rat TNF-alpha Protein

  • APC1 protein
  • Cachectin
  • Cachetin
  • DIF
  • TNF
  • TNF, monocyte-derived
  • tnfa
  • tnf-a
  • TNFalpha
  • TNF-alpha
  • TNF-alpha/TNFSF2
  • TNF-alphacachectin
  • TNFATNF, macrophage-derived
  • 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


Tumor necrosis factor alpha (TNF-alpha), also called cachectin, is the best-know member of the TNF-family, which can cause cell death. This protein is produced by neutrophils, activated lymphocytes, macrophages, NK cells, LAK cells, astrocytes endothelial cells, smooth muscle cells and some transformed cells. TNF-alpha occurs as a secreted, soluble form and as a membrane-anchored form, both of which are biologically active. The naturally-occurring form of TNF-alpha is glycosylated, but non-glycosylated recombinant TNF-alpha has comparable biological activity. Two types of receptors for TNF-alpha have been described and virtually all cell types studied show the presence of one or both of these receptor types.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 2 years from date of receipt.

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FAQs for TNF-alpha Protein (NBP2-35300). (Showing 1 - 4 of 4 FAQ).

  1. I need to know about TNF-alpha antibody kits for mice.
    • We currently have two TNFalpha ELISA kits specific for mouse: catalog numbers KA0257 and NBP1-92670.
  2. I would like to ask you for help. I need an antibody for Elisa to detect human TNF alpha in a supernatant from a cell culture (meaning supernatant after centrifugation of collected cell suspension from a plate well). Which of your antibodies against human tnf alpha would be suitable? I would like to buy only the primary antibody.
    • I would recommend catalog number NBP1-67821 or NB600-587; however, a full list of our anti-human TNF alpha antibodies suitable for use in ELISA can be found using this link.
  3. I am interested in a TNF alpha antibody, cross reactive for human, rat and mouse (host species: rabbit). Could your product NBP1-19532 be used in western blotting applications? Or do you have a similar product in your catalog which could fit with my request?
    • The antibody you mention, NBP1-19532, has not yet been validated in Western blot. I would instead recommend either NBP1-67821 or NB600-587. These are both rabbit polyclonal antibodies that cross-reacts with human, mouse and rat and have been used in Western blotting.
  4. Can your TNF-alpha products be used to treat TBI victims and therefore avoid the perispinal injections with Enbrel?
    • I am very sorry, but all of our products are for scientific research use only, and none are intended or approved for use in humans.

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Gene Symbol TNF

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