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关于此项目
经验公式(希尔记法):
C194H295N53O58S
化学文摘社编号:
分子量:
4329.80
UNSPSC Code:
12352202
NACRES:
NA.32
MDL number:
Form:
powder
Assay:
≥90% (HPLC)
General description
淀粉样β蛋白片段1-40 (Aβ40)来源于淀粉样-β蛋白(Aβ),对应于人类21q21.3染色体。Aβ40主要存在于血管淀粉样蛋白沉积物中。Aβ40包含C端膜插入结构域。其可揭示水胶束介质中从无规卷曲结构到α-螺旋结构的结构转变。
Application
淀粉样β蛋白片段1-40已用于:
- 基于温度的构象研究,采用傅里叶变换红外/差分扫描量热法(FT-IR/DSC)开展研究
- 用作夹心式酶促免疫测定的参考标准品,以定量头部外伤患者脑脊髓液中的淀粉样蛋白A4
- 用作胚胎干细胞培养基组分,抑制成纤维细胞淀粉样蛋白沉积
Biochem/physiol Actions
淀粉样β蛋白片段1-40 (Aβ40)可形成基于阳离子的离子通道。
淀粉质 β-蛋白是神经营养性的,但在人和大鼠神经细胞 体内和体外培养中是有神经毒性的。 β-淀粉质多肽(氨基酸1-42和1-43)是爱尔兹海默′s 病人海马,新皮质和杏仁核中老年斑和神经原纤维结的主要组成部分。
Preparation Note
为了保证最大的生物活性,用无钙PBS中稀释至1mg/ml保存,在37℃培养4天。
Other Notes
从0.1%TFA水溶液中冻干
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
常规特殊物品
此项目有
Amyloid beta protein 1-40 and 1-42 levels in matched cerebrospinal fluid and plasma from patients with Alzheimer disease
Mehta PD, et al.
Neuroscience Letters, 304(1-2), 102-106 (2001)
K Ueda et al.
Brain research, 639(2), 240-244 (1994-03-14)
The neurotoxic effects of soluble and aggregated synthetic amyloid beta protein (A beta P) have been investigated in rat primary cultures. Freshly solubilized beta(1-40) was neurotoxic not to immature, but to mature hippocampal neurons. On the other hand, aggregated beta(1-40)
Sandwich-Type Enzyme Immunoassay for Amyloid A4 Protein in Cerebrospinal Fluid From Patients with Head Trauma
PIRIM I
Turkish Journal of Medical Sciences, 31(1), 47-50 (2001)
Temperature-induced conformational changes in amyloid beta (1-40) peptide investigated by simultaneous FT-IR microspectroscopy with thermal system
Chu HL and Lin SY
Biophysical Chemistry, 89(2-3), 173-180 (2001)
Charlotte E Teunissen et al.
Journal of Alzheimer's disease : JAD, 62(4), 1857-1863 (2018-04-05)
The 42 amino acid form of amyloid-β (Aβ42) plays a key role in the pathogenesis of Alzheimer's disease (AD) and is a core biomarker for the diagnosis of AD. Numerous studies have shown that cerebrospinal fluid (CSF) Aβ42 concentrations are
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| A1075-.5MG | 04061833334836 |
| A1075-.1MG | 04061833334782 |
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