ApoE belongs to a group of proteins that bind reversibly with lipoprotein and play an important role in lipid metabolism. In addition to facilitating solublization of lipids, these proteins help to maintain the structural integrity of lipoproteins, serve as ligands for lipoprotein receptors, and regulate the activity of enzymes involved in lipid metabolism. Significant quantities of ApoE are produced in liver and brain and to some extent in almost every organ. ApoE is an important constituent of all plasma lipoproteins. It’s interaction with specific ApoE receptor enables uptake of chylomicron remnants by liver cells, which is an essential step during normal lipid metabolism. It also binds with the LDL receptor (apo B/E). Defects in ApoE are a cause of hyperlipoproteinemia type III. ApoE exists in three major isoforms; E2, E3, and E4, which differ from one another by a single amino-acid substitution. Individuals heterozygous for the ApoE4 allele are at higher risk of late-onset Alzheimer’s disease. Recombinant human ApoE4 is a 34.4 kDa protein containing 300 amino acid residues (Accession No. AAB59397). 用产品只提供给进一步的科研使用，不可应用于治疗等其他方面。 rPeptide是设在雅典，美国佐治亚州的一家生物技术公司，是一种在阿尔茨海默氏症和帕金森氏病的研究提供研究产品（重组多肽和蛋白质，抗体，试剂）市场的*。rPeptide还提供定制服务的范围从分子生物学，蛋白表达和纯化，13C和15N的多肽和蛋白质的统一标识。 rPeptide有一个专有的平台载体技术，使可溶性肽/蛋白在大肠杆菌中（如淀，β-淀粉样蛋白，瘦素，亲胰岛素）历史上的困难肽/蛋白表达。 商品名称    商品货号    商品品牌 Beta-Amyloid (1-40), Mouse, Rat    A-1007-1    rPeptide Beta-Amyloid (1-40), Starter Kit    A-1150-1    rPeptide Beta-Amyloid (1-40), Starter Kit    A-1150-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, HCl    A-1156-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, HCl    A-1156-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, HFIP    A-1153-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, HFIP    A-1153-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, NaOH    A-1155-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, NaOH    A-1155-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, TFA    A-1001-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, TFA    A-1001-2    rPeptide Beta-Amyloid (1-40, D23N)    A-1013-1    rPeptide Beta-Amyloid (1-40, D23N)    A-1013-2    rPeptide Beta-Amyloid (1-40, F4W)    A-1011-1    rPeptide Beta-Amyloid (1-40, F4W)    A-1011-2    rPeptide