NQTrp
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
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.
Physical Appearance | A crystalline solid |
Storage | Store at -20°C |
M.Wt | 360.4 |
Cas No. | 185351-19-3 |
Formula | C21H16N2O4 |
Synonyms | 1,4-Naphthoquinon-2-yl-L-tryptophan |
Solubility | ≤1mg/ml in ethanol;20mg/ml in DMSO;20mg/ml in dimethyl formamide |
Chemical Name | N-(1,4-dihydro-1,4-dioxo-2-naphthalenyl)-L-tryptophan |
SDF | Download SDF |
Canonical SMILES | O=C(C=C(N[C@H](C(O)=O)CC1=CNC2=C1C=CC=C2)C3=O)C4=C3C=CC=C4 |
运输条件 | 蓝冰运输或根据您的需求运输。 |
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