Apolipoprotein E/APOE3 Protein, Human, Recombinant (His & Trx), Biotinylated

Apolipoprotein E/APOE3 Protein, Human, Recombinant (His & Trx), Biotinylated is expressed in E. coli expression system with His and Trx tag. The predicted molecular weight is 51.3 kDa and the accession number is P02649.

规格	价格/CNY		货期	数量
20 μg	￥ 1,950	5日内发货
100 μg	￥ 4,620	5日内发货

规格

价格/CNY

货期

数量

20 μg

￥ 1,950

5日内发货

100 μg

￥ 4,620

5日内发货

生物活性	Testing in progress
产品描述	Apolipoprotein E/APOE3 Protein, Human, Recombinant (His & Trx), Biotinylated is expressed in E. coli expression system with His and Trx tag. The predicted molecular weight is 51.3 kDa and the accession number is P02649.

种属	Human
表达系统	E. coli
标签	His, Trx
蛋白编号	P02649
别名	APO-E, LDLCQ5, LPG, ApoE4, AD2, apolipoprotein E
蛋白构建	The Human APOE (P02649) (Lys 19-His 317) was fused with a Trx tag at the N-terminus. The purified protein was biotinylated in vitro.
蛋白纯度	> 75 % as determined by SDS-PAGE
分子量	51.3 kDa (predicted)

内毒素	Please contact us for more information.
缓冲液	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
复溶方法	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
存储	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式	In general, Lyophilized powders are shipping with blue ice.
研究背景	Apolipoprotein E (ApoE) is a 34.2 kDa glycosylated protein with 299 amino acid residues. There are three isoforms in human (apoE2, apoE3, and apoE4) due to different amino acid residues at positions 112 and 158. ApoE is synthesized predominantly in the liver, but also by cells in the spleen, brain, lung, kidney, ovary, adrenal, and muscle tissues. Hepatic parenchyma cells are the main apoE producing cells in mammalian body, probably accounting for two thirds to three fourths of the plasma apoE . In the nervous system, apoE mRNA is present in neurons, astrocytes, ependymal cells, nonmyelinating Schwann cells, but not in microglia, oligodendroglia, choroidal cells, or myelinating Schwann cells. ApoE produced by mammalian cells exists in different forms, monomers, dimers, modified, unmodified, lipid-rich, and lipid-poor, and so forth. ApoE plays a double-role in immune responses. Both apoE containing lipoproteins and multimers of synthetic apoE peptides inhibited proliferation of cultured lymphocytes by inhibiting DNA synthesis and reducing phospholipid turnover in T cells. ApoE can also affect innate and acquired immune responses in vitro by its ability to suppress stimulation of cultured neutrophils. ApoE can bind lipopolysaccharide (LPS), attenuate the inflammatory response, and thus reduce LPS induced lethality. Injection of LPS stimulated higher expression of inflammatory cytokines like interleukin (IL)-1β, IL-12, and interferon-γ (IFN-γ), as well as IL-6.