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beta amyloid [1-42] peptide
  • 品牌:ABBIOTEC
  • 产地:美国
  • 货号:350017
  • 发布日期: 2019-11-25
  • 更新日期: 2024-03-27
产品详请
产地 美国
品牌 ABBIOTEC
货号 350017
纯度 %

Beta-amyloid production results from cleavage in the extracellular domain of APP by the beta-secretase (BACE1) , which results in the production of the APP C-terminal fragment C99. This fragment is further cleaved by the gamma-secretase at residues 40-42 to produce beta-amyloid 40 and 42 peptides. Beta-amyloid aggregation and neuritic plaque formation are pathologic hallmarks of Alzheimer disease. This peptide corresponds to the human beta-amyloid 1-42 peptide.Human: Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-Ile-Ala or H-DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA-OH


β -淀粉样蛋白(amyloid β-protein,Aβ)分子量约4kDa,由β淀粉样前体蛋白(β-amyloid precursor protein,APP)水解而来,由细胞分泌,在细胞基质沉淀聚积后具有很强的神经毒性作用。β 淀粉样蛋白( amyloid-β,Aβ) 是由淀粉样前体蛋白( amyloid precursor protein,APP) 经 β-和 γ-分泌酶的蛋白水解作用而产生的含有 39~43 个氨基酸的多肽。它可由多种细胞产生,循环于血液、脑脊液和脑间质液中,大多与伴侣蛋白分子结合,少数以游离状态存在。人体内 Aβ最常见的亚型是 Aβ1~ 40 和 Aβ1~ 42。