ELISA: The detection limit of ELISA can reach 2.4 pg/mL when clone B1E4 is used as Tracerand clone F12 is used as Coating antibody. Western Blotting: The antibody reacts with recombinant 17 kDa TNF alpha. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Reconstitution
Restore with double distillated water to adjust the final concentration to 1.0 mg/mL.
Buffer
0.01 M PBS, pH 7.0 without preservatives.
Preservative
Without preservative
Storage
-20 °C
Storage Comment
Store the antibody at -20 °C. Avoid repeated freezing and thawing. Shelf life: one year from despatch.
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.Synonyms: Cachectin, TNF, TNF-a, TNFA, TNFSF2, Tumor necrosis factor ligand superfamily member 2