Tumor Necrosis Factor (TNF) (Active) Protein

Details zu Produkt Nr. ABIN1305135, Anbieter: Anmelden zum Anzeigen
Proteinname
  • TNF
  • tnf
  • dif
  • tnfa
  • xtnf
  • TNF-a
  • tnfsf2
  • tnf-alpha
  • TNF-alpha
  • DIF
  • TNFA
  • TNFSF2
  • TNFalpha
  • Tnfa
  • Tnfsf1a
  • RATTNF
  • TNFa
  • cTNF
  • TNF-ALPHA
  • Cachectin
  • Tnf-alpha
  • tnfa-like
  • tumor necrosis factor (TNF superfamily, member 2)
  • tumor necrosis factor
  • tumour necrosis factor alpha-like
  • tumor necrosis factor alpha
  • lipopolysaccharide-induced TNF factor
  • tumor necrosis factor b (TNF superfamily, member 2)
  • TNF
  • tnf
  • tnf-alpha
  • LITAF
  • Tnf
  • tnfb
Spezies
Maus
123
50
30
15
11
8
7
3
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Quelle
Escherichia coli (E. coli)
166
29
16
4
4
3
3
2
2
2
2
1
1
Protein-Typ
Recombinant
Biologische Aktivität
Active
Applikation
Blocking Reagent (BR), Functional Studies (Func), Intracellular Flow Cytometry (ICFC), ELISA
Optionen
Hersteller
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Marke BD Pharmingen™
Spezifität Biological Activity: Activity Test: MTT/Actinomycin D Cytolysis assay using L929 indicator cells at 2 x 10^5 cells/ml
Specific Activity: 0.2 - 5.0 x 10^9 Units /mg
ED50: 2 - 50 pg/ml
Observed dose response relationship: 80 fold A Unit is defined as the amount of material required to stimulate a half-maximal response at cytokine saturation. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
Produktmerkmale Recombinant mouse TNF is supplied as a frozen aqueous buffered solution containing biotechnology grade, low endotoxin bovine serum albumin, with no preservatives. Recombinant mouse TNF was purified and found to be > 95% pure by SDS-PAGE, and an absorption assay based on the Beers-Lambert Law.
Reinigung Recombinant mouse TNF is supplied as a frozen liquid comprised of 0.22 μm sterile-filtered aqueous buffered solution containing bovine serum albumin, with no preservatives. Recombinant mouse TNF is ≥ 95 % pure as determined by SDS-PAGE, and an absorption assay based on the Beers-Lambert Law.
Reinheit ≥ 95 %
Sterilität 0.22 μm filtered
Endotoxin-Niveau The endotoxin level is ≤ 0.1 ng per µg of TNF, as measured in a chromogenic LAL assay.
Hintergrund Tumor Necrosis Factor (TNF, aka TNF-α) is a potent multifunctional cytokine which can exert regulatory and cytotoxic effects on a wide range of normal lymphoid and non-lymphoid cells and tumor cells. Mouse TNF is a differentially glycosylated protein containing 156 amino acid residues.
Pathways NF-kappaB Signalweg, Apoptose, Caspase Kaskade in der Apoptose, Cellular Response to Molecule of Bacterial Origin, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response, Positive Regulation of Endopeptidase Activity, Hepatitis C, Protein targeting to Nucleus
Applikationshinweise ELISA Standard: Recombinant mouse TNF is useful as a quantitative standard for measuring mouse TNF protein levels in an TNF specific sandwich ELISA with the purified G281-2626 antibody (Cat. No. 551225) as a capture antibody and the biotinylated MP6-XT3 (Cat. No. 554415) as the detection antibody. To obtain linear standard curves, doubling dilutions of this mouse TNF standard from ~2,000 to 15 pg/ml should be included in each ELISA plate.
Note: This ELISA pair is recommended primarily for measuring cytokine from experimental cell culture systems. These ELISA reagents are not recommended for assaying serum or plasma samples. For measuring mouse TNF in serum or plasma the BD OptEIA™ Mouse TNF ELISA Sets (Cat. No. 555268 or 558534) and BD OptEIA™ Mouse TNF ELISA Kit (Cat. No. 559732 or 560478) are specially formulated and recommended.
Ligand Blocking Control for Immunfuorescent Staining of Cytokines: Recombinant mouse TNF can be used as a blocking control to demonstrate specificity of TNF staining by the directly conjugated-MP6-XT22 antibody. To perform this control, the fluorochrome-conjugated antibody can be preincubated with 0.05 - 0.5 µg of recombinant mouse TNF for 20 minutes at 4°C, prior to staining. The intracellular cytokine staining technique and use of blocking controls are described in detail by C. Prussin and D. Metcalfe.
Kommentare

BD Pharmingen™ Recombinant Mouse TNF - Reactivity Ms

Beschränkungen Nur für Forschungszwecke einsetzbar
Format Liquid
Konzentration 200 μg/mL
Buffer Frozen aqueous buffered solution containing BSA.
Konservierungsmittel Azide free
Handhabung This preparation contains no preservatives, thus it should be handled under aseptic conditions. Rapidly thaw and quick-spin product prior to use. Upon initial thawing, the product should be aliquoted into polypropylene microtubes and frozen at -80°C for future use. Alternatively, the product can be diluted in sterile neutral buffer containing not less than 0.5 - 10 mg/ml carrier protein such as human or bovine serum albumin, aliquoted and stored at -80°C. For in vitro biological assay use, we recommend carrier protein concentrations of ≥ 1 mg/ml. For use as an ELISA standard, we recommend carrier protein concentrations of 5 - 10 mg/ml. The product should not be diluted to less than 50 µg/ml for long term storage. Failure to add carrier protein or store at indicated temperatures may result in a loss of activity.
Note: Carrier proteins should be pre-screened for possible effects in an appropriate experimental system. Carrier proteins may effect exper imental results due to toxicity, high endotoxin levels or possible blocking activity.
Lagerung -80 °C
Informationen zur Lagerung Store product at -80°C prior to use or for long term storage of stock solutions. Rapidly thaw and quick-spin product prior to use. Avoid multiple freeze-thaws of product. This preparation contains no preservatives, thus it should be handled under aseptic conditions.
Produkt verwendet in: Prussin, Metcalfe: "Detection of intracytoplasmic cytokine using flow cytometry and directly conjugated anti-cytokine antibodies." in: Journal of immunological methods, Vol. 188, Issue 1, pp. 117-28, 1996 (PubMed).

Jäättelä: "Biologic activities and mechanisms of action of tumor necrosis factor-alpha/cachectin." in: Laboratory investigation; a journal of technical methods and pathology, Vol. 64, Issue 6, pp. 724-42, 1991 (PubMed).

Hogan, Vogel: "Production of tumor necrosis factor by rIFN-gamma-primed C3H/HeJ (Lpsd) macrophages requires the presence of lipid A-associated proteins." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 141, Issue 12, pp. 4196-202, 1989 (PubMed).