McKim S, Hinton J F
Department of Chemistry/Biochemistry, University of Arkansas, Fayetteville 72701.
Biochim Biophys Acta. 1994 Jul 13;1193(1):186-98. doi: 10.1016/0005-2736(94)90348-4.
Evidence is presented for Xe transport through the gramicidin A channel. This evidence for Xe transport through gramicidin A channels has been obtained using 129Xe-NMR spectroscopy. Three experiments were utilized. The first experiment involved monitoring the change in the chemical shift of 129Xe in the presence of increasing gramicidin A concentration, the second observed the effect on the 129Xe chemical shift with gramicidin A channels photochemically altered by UV light and the third determined the effect of gramicidin A channels blocked by Ba2+ on the 129Xe chemical shift. The results of these three experiments indicate that Xe transports through the gramicidin A channel.
有证据表明氙可通过短杆菌肽A通道进行转运。关于氙通过短杆菌肽A通道转运的这一证据是利用129Xe核磁共振波谱法获得的。采用了三个实验。第一个实验是监测在短杆菌肽A浓度增加的情况下129Xe化学位移的变化，第二个实验观察了经紫外光光化学改变的短杆菌肽A通道对129Xe化学位移的影响，第三个实验确定了被Ba2+阻断的短杆菌肽A通道对129Xe化学位移的影响。这三个实验的结果表明氙可通过短杆菌肽A通道进行转运。
