Urry D W, Trapane T L, Romanowski S, Bradley R J, Prasad K U
Int J Pept Protein Res. 1983 Jan;21(1):16-23. doi: 10.1111/j.1399-3011.1983.tb03073.x.
The syntheses of (1-13C) Trp9 gramicidin A (GA), (1-13C) Trp11 GA, (1-13C) Trp13 GA, (1-13C) Trp15 GA, and D . Leu2 GA are verified by means of high performance liquid chromatography, carbon-13 nuclear magnetic resonance, circular dichroism and characterization of transport properties. The use of these and other synthetic gramicidins is discussed in terms of determining ion binding sites within the channel, helix sense of the channel, the basis of monovalent vs divalent cation selectivity, and means of modulating channel conductance.
通过高效液相色谱、碳-13核磁共振、圆二色性以及转运特性表征,验证了(1-¹³C)色氨酸9短杆菌肽A(GA)、(1-¹³C)色氨酸11 GA、(1-¹³C)色氨酸13 GA、(1-¹³C)色氨酸15 GA和D-亮氨酸2 GA的合成。从确定通道内离子结合位点、通道的螺旋方向、单价与二价阳离子选择性的基础以及调节通道电导的方式等方面,讨论了这些及其他合成短杆菌肽的用途。