TNF-alpha Antibody (2342C) - Low Endotoxin and Azide Free

Immunohistochemistry-Paraffin: TNF-alpha Antibody (2342C) - Low Endotoxin and Azide Free [NBP2-75925] - Analysis of a FFPE tissue section of the human intesting using 1:200 dilution of TNF-alpha antibody (NBP2-75925). The signal was developed using HRP-DAB method which followed counterstaining of the cells with hematoxylin. The antibody generated a moderate to strong cytoplasmic staining in crypt cells.

Western Blot: TNF-alpha Antibody (2342C) - Low Endotoxin and Azide Free [NBP2-75925] - Western blot shows conditioned media from CHO Chinese hamster ovary cell line either mock transfected or transfected with human TNF- alpha. PVDF membrane was probed with 2 ug/mL of Rabbit Anti-Human TNF-alpha Monoclonal Antibody (NBP2-75925) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). Specific bands were detected for TNF-alpha at approximately 18 and 21 kDa (as indicated). This experiment was conducted under reducing conditions.

Neutralization: TNF-alpha Antibody (2342C) [NBP2-75925] - Recombinant Human TNF-alpha (Catalog # 210-TA) induces cytotoxicity in the the L-929 mouse fibroblast cell line in a dose-dependent manner (orange line), as measured by Resazurin (Catalog # AR002). Cytotoxicity elicited by Recombinant Human TNF-alpha (0.25 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human TNF-alpha Monoclonal Antibody (Catalog # NBP2-75925). The ND50 is typically 1-10 ng/mL in the presence of the metabolic inhibitor actinomycin D.

• Reactivity: Hu
• Applications: WB, IHC, IHC-P, B/N
• Clone: 2342C
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated
• Format: Low Endotoxin and Azide Free
• Concentration: 1.0 mg/ml

TNF-alpha Antibody (2342C) - Low Endotoxin and Azide Free Summary

• Additional Information: Recombinant Monoclonal Antibody.
• Immunogen: Partial recombinant human TNF-alpha protein (amino acids 77-233) [Uniprot: P01375]
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Gene: TNF
• Purity: Protein A or G purified from cell culture supernatant
• Endotoxin Note: <0.10 EU per 1 ug of the antibody by the LAL method.

Applications/Dilutions

• Dilutions:
  • Western Blot 2 ug/ml
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin
  • Neutralization
• Application Notes: Measured by its ability to neutralize TNF-alpha -induced cytotoxicity in the L-929 mouse fibroblast cell line. The Neutralization Dose (ND50) is typically 1-10 ng/mL in the presence of 0.25 ng/mL Recombinant Human TNF-alpha and actinomycin D.

Packaging, Storage & Formulations

• Storage: Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
• Buffer: PBS
• Preservative: No Preservative
• Concentration: 1.0 mg/ml
• Purity: Protein A or G purified from cell culture supernatant

Alternate Names for TNF-alpha Antibody (2342C) - Low Endotoxin and Azide Free

• APC1 protein
• Cachectin
• Cachetin
• DIF
• TNF
• TNF, monocyte-derived
• TNFA
• TNF-A
• TNFalpha
• TNF-alpha
• TNF-alpha/TNFSF2
• TNF-alphacachectin
• TNFATNF, macrophage-derived
• TNFG1F
• TNFSF1A
• 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

Background

Tumor Necrosis Factor Alpha (TNF alpha) is a protein secreted by lipopolysaccharide stimulated macrophages, and causes tumor necrosis when injected into tumour bearing mice. TNF alpha is believed to mediate pathogenic shock and tissue injury associated with endotoxemia. TNF alpha exists as a multimer of two, three, or five noncovalently linked units, but shows a single 17 kDa band following SDS PAGE under non reducing conditions. TNF alpha is closely related to the 25 kDa protein Tumour Necrosis Factor beta (lymphotoxin), sharing the same receptors and cellular actions. TNF alpha causes cytolysis or cytostasis of certain transformed cells, being synergistic with interferon gamma in its cytotoxicity. Although it has little effect on many cultured normal human cells, TNF alpha appears to be directly toxic to vascular endothelial cells. Other actions of TNF alpha include stimulating growth of human fibroblasts and other cell lines, activating polymorphonuclear neutrophils and osteoclasts, and induction of interleukin 1, prostaglandin E2 and collagenase production. TNF alpha is currently being evaluated in treatment of certain cancers and AIDS Related Complex.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

FAQs for TNF-alpha Antibody (NBP2-75925). (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.

Bioinformatics

• Gene Symbol: TNF