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Electrochemical detection of hepatitis C viral NS3-4A protease

机译:丙型肝炎病毒NS3-4A蛋白酶的电化学检测

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Here we lay the ground work for the detection of hepatitis C viral NS3-4A protease exploiting peptide-protein interaction. The NS3-4A protease is inhibited by N-terminal cleavage products. Our approach is based on the formation of a self-assembled monolayer (SAM) of a ferrocene amino acid derivative on an electrode surface. A short NS3-4A specific inhibitory peptide (Asp-Glu-Ile-Val-Pro-Nva) was then covalently attached to the electrode surface. The interaction of the peptide, through the C-terminal, with the protein was quantified using electrochemical techniques. The systems exhibit a linear relationship between the measured signal and NS3-4A concentration in the range of 10-100 pM with a detection limit of 5 pM. This journal is
机译:在这里,我们为利用肽-蛋白质相互作用检测丙型肝炎病毒NS3-4A蛋白酶奠定了基础。 NS3-4A蛋白酶被N末端裂解产物抑制。我们的方法基于在电极表面上形成二茂铁氨基酸衍生物的自组装单层(SAM)。然后将短的NS3-4A特异性抑制肽(Asp-Glu-Ile-Val-Pro-Nva)共价附于电极表面。肽通过C-末端与蛋白质的相互作用使用电化学技术进行了定量。该系统在10-100 pM的范围内显示测量信号与NS3-4A浓度之间的线性关系,检测极限为5 pM。这本日记是

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