閻潤濤是中國改革開放後高考的首屆(77級)大學生,上世紀80年代來美國留學,博士畢業後,在Johns Hopkins醫學院付院長 Maloney的實驗室從事膜蛋白研究,他在90年代初用克隆的細菌葡萄糖轉運載體為研究對象,突變455個在載體膜蛋白上的氨基酸,並測量得到455個氨基酸突變體兩邊的數據,而後整理數據得出葡萄糖轉運蛋白的工作原理是喇叭口模型,即在葡萄糖進入細胞膜喇叭口朝外,進入細胞膜後喇叭口朝內,這樣得以將葡萄糖運入細胞內。這個突破性工作發表在世界最著名的專業雜誌Cell(細胞)上( Yan, R. T., and P. C. Maloney. 1993. Identification of a residue in the translocation pathway of a membrane carrier. Cell 75:37–44.)。隨後閻先生又用一年多時間測出了葡萄糖轉運蛋白的氨基酸結構,其結果於1995年發表在PNAS《美國科學院院報》上(Yan, R. T., and P. C. Maloney. 1995. Residues in the pathway through a membrane transporter. Proc. Natl. Acad. Sci. USA 92:5973–5976.).
For my curiosity, I downloaded the two articles, one from Nature and the other one from PNAS. Since I am not in the field of protein, I don’t quite understand the work Yan et al did but with respect.
However, I was just wondering:
1. Nieng’s team studied the crystal structure of the human glucose transporter GLUT1 using X-Ray technique while you studied the structure (or residues) of UhPT (a bacterial membrane transporter) using Mutagenesis.
Are human glucose transporter GLUT1 and UhpT different or the same?
2. If different, then their structures should be different regardless of how they were determined by different techniques (X-Ray vs Mutagenesis).
3. Why you claimed that R. Yan first discovered ” 葡萄糖轉運蛋白的機理及結構” if human glucose transporter GLUT1 is different from UhpT.
4. As for why Nieng’s paper did not cite your paper, I guess it is ok not to cite every paper or maybe she cited your paper indirectly.
閻潤濤是中國改革開放後高考的首屆(77級)大學生,上世紀80年代來美國留學,博士畢業後,在Johns Hopkins醫學院付院長 Maloney的實驗室從事膜蛋白研究,他在90年代初用克隆的細菌葡萄糖轉運載體為研究對象,突變455個在載體膜蛋白上的氨基酸,並測量得到455個氨基酸突變體兩邊的數據,而後整理數據得出葡萄糖轉運蛋白的工作原理是喇叭口模型,即在葡萄糖進入細胞膜喇叭口朝外,進入細胞膜後喇叭口朝內,這樣得以將葡萄糖運入細胞內。這個突破性工作發表在世界最著名的專業雜誌Cell(細胞)上( Yan, R. T., and P. C. Maloney. 1993. Identification of a residue in the translocation pathway of a membrane carrier. Cell 75:37–44.)。隨後閻先生又用一年多時間測出了葡萄糖轉運蛋白的氨基酸結構,其結果於1995年發表在PNAS《美國科學院院報》上(Yan, R. T., and P. C. Maloney. 1995. Residues in the pathway through a membrane transporter. Proc. Natl. Acad. Sci. USA 92:5973–5976.).