推薦產品
一般說明
淀粉样蛋白-β(Aβ)肽是阿尔茨海默病大脑的老年斑特征的主要成分。它是一种I型跨膜蛋白。编码淀粉样蛋白-β的基因定位于人21号染色体上。
應用
本品人淀粉样前体蛋白β已用作肽标准品。
生化／生理作用
分泌型β淀粉样蛋白前体(sAPPβ)是β淀粉样蛋白前体(APP)水解得到的裂解产物。APP被β-分泌酶切成2个片段，sAPPβ和β-淀粉样肽(Aβ)。Aβ是阿尔茨海默病(AD)的主要标志之一——淀粉样老年斑的成分，sAPPβ被认为可调节神经元功能和细胞存活。瑞典家系AD中存在的APP突变使APP更易被β-分泌酶切割，形成更多的Aβ和sAPPβ。相反，蛋白激酶C(PKC)激活可降低sAPPβ浓度。反面高尔基体网状结构(TGN)是β-分泌酶活性发挥的主要位点。
外觀
0.2 μm过滤溶液，含20 mM Tris(pH 7.4)、0.5 M NaCl、1 mM EDTA、5 mM βME、2 μg/ml抑肽酶
準備報告
sAPPβ在大肠杆菌中表达为可溶性蛋白，并在非变性条件下纯化。
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
個人防護裝備
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
D J Selkoe
Nature, 399(6738 Suppl), A23-A31 (1999-07-07)
Studies of the molecular basis of Alzheimer's disease exemplify the increasingly blurred distinction between basic and applied biomedical research. The four genes so far implicated in familial Alzheimer's disease have each been shown to elevate brain levels of the self-aggregating
The Processing of Amyloid Precursor Protein in the
Central Nervous System of Humans and Rhesus
Macaques
Central Nervous System of Humans and Rhesus
Macaques
Justyna Anna Dobrowolska
The West Virginia Medical Journal (2013)
Monomeric Amyloid Beta Peptide in Hexafluoroisopropanol Detected by Small Angle Neutron Scattering.
Zhang-Haagen B
PLoS ONE (2016)
C Haass et al.
Nature, 357(6378), 500-503 (1992-06-11)
Progressive cerebral deposition of the amyloid beta-peptide is an early and invariant feature of Alzheimer's disease. The beta-peptide is released by proteolytic cleavages from the beta-amyloid precursor protein (beta APP), a membrane-spanning glycoprotein expressed in most mammalian cells. Normal secretion
D M Skovronsky et al.
The Journal of biological chemistry, 275(4), 2568-2575 (2000-01-25)
The release of amyloidogenic amyloid-beta peptide (Abeta) from amyloid-beta precursor protein (APP) requires cleavage by beta- and gamma-secretases. In contrast, alpha-secretase cleaves APP within the Abeta sequence and precludes amyloidogenesis. Regulated and unregulated alpha-secretase activities have been reported, and the
文章
Alzheimer's Disease
我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務