Pentraxin 3/TSG-14 Polyclonal Antibody (AN006880L)
For research use only.
| Verified Samples | Verified Samples in WB: K562, NIH/3T3, Mouse placenta |
| Dilution | WB 1:1000-1:2000 |
| Isotype | IgG |
| Host | Rabbit |
| Reactivity | Human, Mouse |
| Applications | WB |
| Clonality | Polyclonal |
| Immunogen | Recombinant Mouse Pentraxin 3/TSG-14 protein expressed by E.coli |
| Abbre | Pentraxin 3 |
| Synonyms | Tsg, PTX, Tsg14, Ptx3, alpha-induced protein 5, long, pentaxin-related gene, Pentaxin-related protein PTX3, Pentraxin 3, pentraxin-3, pentraxin-related gene, pentraxin-related protein PTX3, rapidly induced by IL-1 beta, TNF alpha-induced protein 5, TNFAIP5, TSG-14, tumor necrosis factor |
| Swissprot | |
| Calculated MW | 42 kDa |
| Observed MW |
40 kDa
The actual band is not consistent with the expectation.
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
| Cellular Localization | Secreted |
| Concentration | 1 mg/mL |
| Buffer | PBS with 0.05% proclin 300, 1% protective protein and 50% glycerol,pH7.4 |
| Purification Method | Antigen Affinity Purification |
| Conjugation | Unconjugated |
| Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
| Shipping | The product is shipped with ice pack, upon receipt, store it immediately at the temperature recommended. |
| background | Pentraxin 3 (PTX3),TSG-14,was initially identified as a TNF-alpha or Il-1 beta inducible gene. It belongs to the pentraxin family,which was named originally for the homo-pentameric structure formed by its members. The pentraxin family is divided into two subfamilies: the “short” and the “long” pentraxins with approximate molecular weights of 25 kDa and 50 kDa,respectively. TSG-14 is a member of the long pentraxin subfamily,which also includes the Xenopus laevis Xl-PXN1,the guinea pig apexin/p50,the rat neuronal pentraxin I (NPI) and NPR,the human neuronal pentraxin II (NPTX2) and the human neuronal activity-related pentraxin.Mature secreted TSG-14 contains a pentaxin-like domain at its carboxy-terminus that shares 23-28% amino acid (aa) sequence similarity to C-reactive protein (CRP) and serum amyloid P component (SAP),which belongs to the short pentraxin subfamily. However,the N-terminal sequence of TSG-14 does not share aa sequence homology with any of the “short” pentaxins. Unlike CRP and SAP,which forms pentamers only,TSG-14 forms both pentameric and higher ordered oligomers. Similarly to CRP and SAP,TSG-14 binds to the complement cascade component C1q. However,TSG-14 does not bind to phosphoethanolamine,phosphocholine,or high pyruvate agarose,which are known ligands for CRP and SAP. TSG-14 is a marker of the acute phase response and is highly expressed in advanced atherosclerotic plaques. While CRP and SAP are primarily produced in the liver,TSG-14 expression is strongly up regulated by TNF-alpha,Il-1 beta,and bacterial lPS in peripheral fibroblasts,endothelial cells,and macrophages. |
Other Clones
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Unconjugated
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