SRP6323
Pentraxin 3 human
recombinant, expressed in E. coli, ≥90% (SDS-PAGE)
Synonym(s):
PTX3, TNFAIP5, TSG-14
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About This Item
UNSPSC Code:
12352200
NACRES:
NA.32
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biological source
human
recombinant
expressed in E. coli
Assay
≥90% (SDS-PAGE)
form
liquid
mol wt
44.4 kDa (401 aa, 18-381 aa + His Tag)
packaging
pkg of 100 μg
concentration
1 mg/mL
impurities
<1 EU/μg endotoxin (LAL test)
UniProt accession no.
shipped in
dry ice
storage temp.
−70°C
Gene Information
human ... PTX3(5806)
General description
Pentraxin 3 (PTX3) or tumor necrosis factor (TNF)-stimulated gene is the prototypic member of the long pentraxin family sharing the C-terminal domain with short pentraxins and containing a unique N-terminal domain. The gene encoding this protein is localized on human chromosome 3q25.32 and consists of 3 exons. Recombinant human Pentraxin 3 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography.
Biochem/physiol Actions
Pentraxin 3 (PTX3) is an acute phase protein produced and released at inflammatory sites by diverse cell types including monocytes/macrophages, endothelial cells, vascular smooth muscle cells, fibroblasts, and adipocytes. It plays a role in the regulation of innate resistance to pathogens, inflammatory reactions, possibly clearance of self-components and female fertility. PTX3 particularly functions as a soluble pathogen recognition receptor and confers resistance against pathogens. Studies indicate that the protein removes apoptotic cells during immune responses. It associates with complement factor H, which is a complement regulator protein.
Physical form
1 mg/mL in 20 mM Tris-HCl buffer (pH 8.0) containing 10% glycerol, and 1 mM DTT.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Simone Bastrup-Birk et al.
PloS one, 8(9), e73119-e73119 (2013-09-17)
The long pentraxin-3 (PTX3) is a key component of the humoral arm of the innate immune system. PTX3 is produced locally in response to pro-inflammatory stimuli. To investigate PTX3 levels and its use as a biomarker in patients with systemic
Pentraxin-3 and the right ventricle: the Multi-Ethnic Study of Atherosclerosis?Right Ventricle Study
Peter Leary
Pulmonary Circulation, 4.2 (2014)
Tunicamycin-induced Endoplasmic Reticulum Stress Upregulates the Expression of Pentraxin 3 in Human Retinal Pigment Epithelial Cells
Narae Hwang
Korean Journal of Ophthalmology : KJO, 30(6), 468-478 (2016)
Bongkun Choi et al.
Oncotarget, 5(2), 481-492 (2014-01-25)
Pentraxin 3 (PTX3), a modulator of tumor-associated inflammation, is known to be positively correlated with tumor grade and severity of malignancies, but its exact role remains unclear. This study found that PTX3 expression was up-regulated in distant bone metastases of
Darrell Pilling et al.
PloS one, 10(3), e0119709-e0119709 (2015-03-17)
Monocyte-derived, fibroblast-like cells called fibrocytes are associated with fibrotic lesions. The plasma protein serum amyloid P component (SAP; also known as pentraxin-2, PTX2) inhibits fibrocyte differentiation in vitro, and injections of SAP inhibit fibrosis in vivo. SAP is a member
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