Recombinant Mouse TNF-alpha Protein Summary
A biologically active protein to TNF.
Source: E. coli
Amino Acid Sequence: MLRSSSQNSS DKPVAHVVAN HQVEEQLEWL SQRANALLAN GMDLKDNQLVVPADGLYLVY SQVLFKGQGC PDYVLLTHTV SRFAISYQEK VNLLSAVKSP CPKDTPEGAELKPWYEPIYL GGVFQLEKGD QLSAEVNLPK YLDFAESGQV YFGVIAL
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 0.1 ng/ml, corresponding to a specific activity of > 1.0 x 10^7 IU/mg in the presence of actinomycin D.
| Protein/Peptide Type
> 98 % pure by SDS-PAGE and HPLC
Less than 1 EU/ug of endotoxin as determined by LAL method.
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.
Packaging, Storage & Formulations
Store at -20C. Avoid freeze-thaw cycles.
Lyophilized from a 0.2 um filtered solution in PBS, pH 7.2.
> 98 % pure by SDS-PAGE and HPLC
Briefly centrifuge vial prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < or = -20 C.
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 Recombinant Mouse TNF-alpha Protein
- APC1 protein
- TNF, monocyte-derived
- TNFATNF, macrophage-derived
- 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-aplha 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. The biologically active native form of TNF-alpha is reportedly a trimer. Human and murine TNF-alpha show approximately 79 % homology at the amino acid level and cross-reactivity between the two species. 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 3 months from date of receipt.
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