應用
Human serum amyloid P component has been used as a standard in a study to characterize it as a plasma marker for Parkinson′s disease by a proteomic approach.
生化/生理作用
Serum amyloid P component (SAP) is named for its universal presence in amyloid deposits (senile plaque and neurofibrillary tangles) in Alzheimer patients although it is exclusively synthesized in the periphery. SAP levels in CSF can be useful for assessing cognitive impairment in AD patients. However, SAP appeared not to be required for A beta deposition since no endogenous SAP immunoreactivity was detectable in transgenic mouse overexpressing beta-protein precursor. SAP belongs to the pentraxins family of oligomeric serum proteins which is highly conserved through evolution. Its presence has been found in Limulus polyphemus haemolymph. A recent report demonstrated that, in the presence of calcium, SAP can bind to free DNA and chromatin released through apoptosis or necrosis, displacing histone H1 and causing its solubilization and degradation. SAP knock out mice developed antinuclear autoimmunity and glomerulonephritis. However, the protective role of SAP in human SLE is still controversial. In addition, SAP neutralizes LPS and is potentially useful in defense against serious gram-negative sepsis in humans.
外觀
Solution in 0.01 M Tris, 0.14 M NaCl at pH 8.0 containing 0.01 M EDTA and 0.1% (w/v) NaN3
免責聲明
RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.
儲存類別代碼
10 - Combustible liquids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
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