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NQTrp
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
NQTrp图片
CAS NO:185351-19-3
包装与价格:
包装价格(元)
1mg电议
5mg电议
10mg电议
25mg电议

产品介绍
NQTrp,一种芳香萘醌-色氨酸杂化分子,一种具有一般抗淀粉样蛋白生成作用的 tau 蛋白聚集抑制剂。
Cas No.185351-19-3
别名1,4-Naphthoquinon-2-yl-L-tryptophan
化学名N-(1,4-dihydro-1,4-dioxo-2-naphthalenyl)-L-tryptophan
Canonical SMILESO=C(C=C(N[C@H](C(O)=O)CC1=CNC2=C1C=CC=C2)C3=O)C4=C3C=CC=C4
分子式C21H16N2O4
分子量360.4
溶解度≤1mg/ml in ethanol;20mg/ml in DMSO;20mg/ml in dimethyl formamide
储存条件Store at -20℃
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

NQTrp, also known as 1,4-naphthoquinon-2-yl-L-tryptophan, is an inhibitor of the Alzheimer’s disease-associated β-amyloid [1].

Alzheimer’s disease (AD) is a progressive neurodegenerative disorder and the early soluble oligomeric species of Aβ plays a fundamental role in the pathogenesis of AD [1]. The Aβ peptide results from the cleavage of the amyloid precursor protein (APP) by the β- and γ-secretases and the predominant Aβ peptides found in the brain are 40 (Aβ1-40) and 42 (Aβ1-42) residues [2].

In the oligomer inhibition assay and ThT fibril inhibition assay, NQTrp completely inhibited Aβ oligomerization and fibrillization. In cultured neural cells, NQTrp dose-dependently inhibited Aβ to assemble into toxic oligomers. In rat PC12 neuronal cell line, NQTrp significantly inhibited the cytotoxic effect of the Aβ oligomers and increased the viability of the cells [1].

In a Drosophila model of AD, NQTrp prolonged the life span of Aβ1–42-expressing flies. Aβ1–42-expressing flies with NQTrp displayed dramatic improvement, behaving almost identical to the control classes. The brains of these flies showed a significant reduction in oligomeric species of Aβ [1].

References:
[1].  Scherzer-Attali R, Pellarin R, Convertino M, et al. Complete phenotypic recovery of an Alzheimer's disease model by a quinone-tryptophan hybrid aggregation inhibitor. PLoS One. 2010 Jun 14;5(6):e11101.
[2].  Zhang T, Xu W, Mu Y, et al. Atomic and dynamic insights into the beneficial effect of the 1,4-naphthoquinon-2-yl-L-tryptophan inhibitor on Alzheimer's Aβ1-42 dimer in terms of aggregation and toxicity. ACS Chem Neurosci. 2014 Feb 19;5(2):148-59.