SRP4324
Apo-SAA human
recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC)
Synonim(y):
Amyloid fibril protein AA, Amyloid protein A, SAA, SAA1, SAA2, Serum amyloid A protein
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About This Item
Polecane produkty
pochodzenie biologiczne
human
rekombinowane
expressed in E. coli
Próba
≥98% (HPLC)
≥98% (SDS-PAGE)
Formularz
lyophilized
masa cząsteczkowa
~11.5 kDa
opakowanie
pkg of 50 μg
warunki przechowywania
avoid repeated freeze/thaw cycles
metody
protein expression: suitable
zanieczyszczenia
endotoxin, tested
numer dostępu NCBI
Warunki transportu
wet ice
temp. przechowywania
−20°C
informacje o genach
human ... SAA1(6288)
Opis ogólny
Human apo-SAA is a 104 amino acid polypeptide that circulates primarily in association with high-density lipoproteins (HDL). The level of apo-SAA, normally 1-5 μg/ml in plasma, increases 500-1000 fold within 24 hours of an inflammatory stimulus and, under these conditions, is the most abundant HDL apo-lipoprotein. The human SAA gene codes for a 122 amino acid polypeptide, which contains an 18 amino acid N-terminal signal sequence.
Research Area: IMMUNO AND CKS
Serum amyloid A (SAA) proteins are a group of apolipoproteins produced in response to cytokines released by activated monocytes/macrophages. SAA is a highly conserved acute-phase protein primarily synthesized by the liver.
Serum amyloid A (SAA) proteins are a group of apolipoproteins produced in response to cytokines released by activated monocytes/macrophages. SAA is a highly conserved acute-phase protein primarily synthesized by the liver.
Zastosowanie
Apo-SAA human has been used to culture and stimulate RAW264.7 macrophages to study its effects on visfatin expression.
Apo-serum amyloid A has been used to study its effect on the expression of Visfatin in macrophages.
Działania biochem./fizjol.
Serum amyloid A (SAA) is an equally sensitive marker for the acute phase as C-reactive protein (CRP). It is the most sensitive non-invasive biochemical indicator for allograft rejection. The function of SAA as a cytokine-like protein has been acknowledged in cell-cell communication and as a feedback mechanism in inflammatory, immunologic, neoplastic, and protective pathways. SAA plays a crucial role in the regulation and potentially the spread of the initial acute phase response.
Serum amyloid A (SAA) is found normally at concentrations of 0.1μM in blood. However, its concentration increases up to 1000-fold under stress. It has been associated with several chronic inflammatory diseases, such as atherosclerosis. It is found to participate in the inflammatory response by facilitating chemotaxis, migration, and adhesion of inflammatory cells, particularly monocytes/macrophages. SAA is also found to induce the synthesis and secretion of multiple kinds of inflammatory cytokines, such as TNF-α (tumor necrosis factor-α), IL-1β (interleukin-1β), MCP-1 (monocyte chemoattractant protein-1), and Lp-PLA2 (lipoprotein-associated phospholipase A2).
Postać fizyczna
Sterile filtered and Lyophilized without additives.
Rekonstytucja
Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in 0.1% acetic acid to a concentration of 1 μg/ul. This solution can then be diluted into other aqueous buffers.
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Kod klasy składowania
11 - Combustible Solids
Klasa zagrożenia wodnego (WGK)
WGK 3
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Serum Amyloid a Promotes Visfatin Expression in Macrophages.
Wang S
BioMed Research International (2016)
Kiyoshi Migita et al.
PloS one, 9(5), e96703-e96703 (2014-05-23)
Serum amyloid A (SAA) is an acute phase reactant with significant immunological activities, including effects on cytokine synthesis and neutrophil chemotaxis. Neutrophils can also release cytokines with proinflammatory properties. IL-1β is a key proinflammatory cytokine, the secretion of which is
Shixun Wang et al.
BioMed research international, 2016, 4819327-4819327 (2016-03-24)
Visfatin has been reported to exert an important role in the development of atherosclerosis. However, the mechanism that regulated the expression of Visfatin has not been elucidated yet. This study aimed to investigate the effect of SAA on the regulation
Qian Yan et al.
Cellular signalling, 26(9), 1783-1791 (2014-04-08)
Serum amyloid A (SAA), a major acute-phase protein, has potent cytokine-like activities in isolated phagocytes and synovial fibroblasts. SAA-induced proinflammatory cytokine gene expression requires transcription factors such as NF-κB; however, the associated epigenetic regulatory mechanism remains unclear. Here we report
Lei Sun et al.
European journal of immunology, 44(7), 2153-2164 (2014-04-30)
Interleukin-33 (IL-33), an IL-1 family cytokine and nuclear alarmin, is constitutively expressed in epithelial barrier tissues and human blood vessels. However, little is known about the induced expression of IL-33 in monocytes and macrophages, which are major cytokine-producing cells of
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