TNF-α Protein, Porcine,UA BIOSCIENCE_specification/price/image

Product Detail
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Product Specification

Species	Porcine
Synonyms	Cachectin, TNF-alpha, Tumor necrosis factor ligand superfamily member 2
Accession	P23563
Amino Acid Sequence	Arg78-Leu232
Expression System	E.coli
Molecular Weight	17kDa
Purity	>95% by SDS-PAGE
Endotoxin	<0.1EU/μg
Conjugation	Unconjugated
Tag	No Tag
Physical Appearance	Lyophilized Powder
Storage Buffer	PBS, pH7.4
Reconstitution	Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage	· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles.
Reference	1. Zelova, H. and J. Hosek (2013) Inflamm. Res. 62:641. 2. Juhasz, K. et al. (2013) Expert Rev. Clin. Immunol. 9:335. 3. Pauli, U. et al. (1989) Gene 81:185. 4. Tang, P. et al. (1996) Biochemistry 35:8216. 5. Perez, C. et al. (1990) Cell 63:251. 6. Black, R.A. et al. (1997) Nature 385:729. 7. Moss, M.L. et al. (1997) Nature 385:733. 8. Gearing, A.J.H. et al. (1994) Nature 370:555. 9. Schall, T.J. et al. (1990) Cell 61:361. 10. Loetscher, H. et al. (1990) Cell 61:351. 11. Dembic, Z. et al. (1990) Cytokine 2:231. 12. Smith, C.A. et al. (1990) Science 248:1019. 13. Loetscher, H. et al. (1991) J. Biol. Chem. 266:18324. 14. Pinckard, J.K. et al. (1997) J. Biol. Chem. 272:10784. 15. Engelmann, H. et al. (1990) J. Biol. Chem. 265:1531.

Background

Tumor necrosis factor alpha (TNF-alpha), also known as cachectin and TNFSF2, is the prototypic ligand of the TNF superfamily. It is a pleiotropic molecule that plays a central role in inflammation, immune system development, apoptosis, and lipid metabolism. Porcine TNF-alpha consisits of a 35 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 176 aa extracellular domain (ECD). Within the ECD, porcine TNF-alpha shares 69%-86% aa sequence identity with bovine, canine, cotton rat, equine, feline, human, mouse, rat, and rhesus TNF-alpha . TNF-alpha is produced by a wide variety of immune, epithelial, endothelial, and tumor cells. TNF-alpha is assembled intracellularly to form a noncovalently linked homotrimer which is expressed on the cell surface. Cell surface TNF-alpha can induce the lysis of neighboring tumor cells and virus infected cells, and it can generate its own downstream cell signaling following ligation by soluble TNFR I. Shedding of membrane bound TNF-alpha by TACE/ADAM17 releases the bioactive cytokine, a 55 kDa soluble trimer of the TNF-alpha extracellular domain. TNF-alpha binds the ubiquitous 55-60 kDa TNF RI and the hematopoietic cell-restricted 80 kDa TNF RII, both of which are also expressed as homotrimers. Both type I and type II receptors bind TNF-alpha with comparable affinity, although only TNF RI contains a cytoplasmic death domain which triggers the activation of apoptosis. Soluble forms of both types of receptors are released and can neutralize the biological activity of TNF-alpha.

AntBio is a biotechnology group company dedicated to serving life sciences, aiming to help scientists accelerate research and improve work efficiency. AntBio provides comprehensive and high-quality reagent tools for basic research, drug development, and diagnosis, including research grade antibodies, proteins, biochemical reagents, and assay kits. These research tools are widely used in different segments of life science research. The group company currently consists of three brands, Absin, Starter-Bio and UA-Bio.