You have no items in your shopping cart.
You have no items in your shopping cart.
Catalog Number | orb80107 |
---|---|
Category | Proteins |
Description | Human TNF alpha protein |
Tested applications | FA, HPLC, SDS-PAGE |
Purity | > 98.0% as determined by RP-HPLC and analysis by SDS-PAGE |
Conjugation | Unconjugated |
Target | Human TNF alpha |
Solubility (25°C) | It is recommended to reconstitute the lyophilized Tumor Necrosis Factor-alpha in sterile H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions. |
Protein Sequence | The sequence of the first five N-terminal amino acids was determined and was found to be Met-Val-Arg-Ser-Ser. |
Biological Activity | The ED50 as determined by the cytolysis of murine L929 cells in the presence of Actinomycin D, corresponding to Specific Activity of 50,000,000 IU/mg. |
Storage | Store at 4°C for up to two weeks. For long term storage, aliquot and store at -20°C, avoid freeze/thaw cycles. |
Buffer/Preservatives | 1mg of TNF-alpha Human contain 20 mM PBS, pH-7.2, and 10mM NaCl. |
Alternative names | APC1 protein, Cachectin protein, DIF protein, Diff Read more... |
Note | For research use only |
Application notes | Experiment Notes: Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 1.234 as the extinction coefficient for 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using calibrated solution of TNF-a as Reference Standard. |
Expiration Date | 6 months from date of receipt. |
SDS-PAGE analysis of Human TNF alpha protein
Greater than 85% as determined by SDS-PAGE. | |
19.4 kDa | |
E.coli |
Greater than 90% as determined by SDS-PAGE. | |
19.4 kDa | |
Yeast |
Unconjugated | |
95% | |
17.4 kDa | |
Human TNF-alpha, premium grade (orb257883) is expressed from human 293 cells (HEK293). It contains AA Val 77 - Leu 233 (Accession # P01375-1). |
Unconjugated | |
95% | |
18.3 kDa | |
Human TNF-alpha, His Tag (active trimer) (MALS verified) (orb383503) is expressed from human 293 cells (HEK293). It contains AA Val 77 - Leu 233 (Accession # NP_000585.2). |
Greater than 95% as determined by SDS-PAGE. | |
17.5 kDa | |
E.coli |
Filter by Rating