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G protein-coupled receptor mediated sensing of TMA

机译:G蛋白偶联受体介导的TMA的感测

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A new approach for the detection of trimethylamine (TMA) using recombinant Xenopus laevis melanophores was developed. The cells were genetically modified to express the mouse trace amine-associated receptor 5 (mTAAR5), a G protein-coupled receptor from the olfactory epithelium, which conferred high sensitivity to TMA. A focused chemical screen allowed the discovery of additional, previously unknown stimuli of mTAAR5. The cell-based sensor demonstrated no sensitivity to trimethylamine Noxide (TMAO), making it suitable for a convenient evaluation of TMA levels in fish tissue extracts. The developed gas measurement platform was able to detect TMA from 1 to 100 ppm within thirty-five minutes.
机译:开发了一种使用重组Xenopus Laevis Melanophors检测三甲胺(TMA)的新方法。遗传修饰细胞以表达小鼠痕量胺相关的受体5(MTAAR5),来自嗅觉上皮的G蛋白偶联受体,其赋予TMA的高敏感性。聚焦化学筛网允许发现额外的,以前未知的MTAAR5刺激。基于细胞的传感器对三甲胺NONEDIDE(TMAO)表示不敏感,这适于方便地评估鱼类组织提取物中的TMA水平。发达的气体测量平台能够在三十五分钟内检测1至100 ppm的TMA。

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