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Human PTX3 / Pentraxin 3 / TSG-14 Protein (His Tag)

PTX3,TNFAIP5,TSG-14

Catalog Number P12082-H08H
Organism Species Human
Host Human Cells
Synonyms PTX3,TNFAIP5,TSG-14
Molecular Weight The secreted recombinant human PTX3 consists of 375 amino acids and has a predicted molecular mass of 41.6 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of the protein is approximately 43-47 kDa.
predicted N Glu 18
SDS-PAGE
Purity > 97 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human PTX3 (NP_002843.2) (Met 1-Ser 381) was fused with a polyhistidine tag at the C-terminus.
Bio-activity
Research Area Cardiovascular |Atherosclerosis |Vascular Inflammation |Inflammatory mediators
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background Pentraxin-related protein PTX3, also known as Tumor necrosis factor alpha-induced protein 5, Tumor necrosis factor-inducible gene 14 protein, TSG-14, PTX3 and TNFAIP5, is a secreted protein which contains one pentaxin domain. PTX3 plays a role in the regulation of innate resistance to pathogens, inflammatory reactions, possibly clearance of self-components and female fertility. Pentraxins are a family of evolutionarily conserved multifunctional pattern-recognition proteins characterized by a cyclic multimeric structure. Based on the primary structure of the subunit, the pentraxins are divided into two groups: short pentraxins and long pentraxins. C-reactive protein (CRP) and serum amyloid P-component (SAP) are the two short pentraxins. The prototype protein of the long pentraxin group is pentraxin 3 (PTX3). CRP and SAP are produced primarily in the liver in response to IL-6, while PTX3 is produced by a variety of tissues and cells and in particular by innate immunity cells in response to proinflammatory signals and Toll-like receptor (TLR) engagement. PTX3 is essential in female fertility by acting as a nodal point for the assembly of the cumulus oophorus hyaluronan-rich extracellular matrix. PTX3 interacts with several ligands, including growth factors, extracellular matrix components and selected pathogens, playing a role in complement activation and facilitating pathogen recognition by phagocytes, acting as a predecessor of antibodies. PTX3 may also contribute to the pathogenesis of atherosclerosis.
Reference
  • Rolph,M.S. et al., 2002, Arterioscler Thromb Vasc Biol. 22 (5):e10-4.
  • Mantovani A., et al., 2003, Vaccine. 21:S43-S47.
  • Luchetti,M.M. et al., 2004, Clin Exp Rheumatol. 22 (3):S66-72.
  • Mantovani, A. et al., 2006, Vascul Pharmacol. 45 (5):326-30.
  • Inforzato A., et al., 2008, J. Biol. Chem. 283:10147-61.