5-A Fourier map of gramicidin A phased by deuterium-hydrogen solvent difference neutron diffraction.
5-A Fourier map of gramicidin A phased by deuterium-hydrogen solvent difference neutron diffraction.
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5-A 通过氘-氢溶剂差中子衍射定相的短杆菌肽 A 傅立叶图。
DOI：
10.1016/s0006-3495(84)84186-7
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发表时间：
1984
影响因子：
3.4
通讯作者：
Schoenborn,BP
中科院分区：
文献类型：
--
作者：
Koeppe2nd,RE;Schoenborn,BP
用中子衍射法研究了无离子gramicidin A （P212121: A =24.61, b=32.28, c=32.52）晶体。对浸泡在乙醇/H2O和乙醇-d6/D2O中的晶体进行了差异分析，得出了5-A分辨率的单同构替换傅立叶投影结构。gramicidin二聚体在这些晶体中似乎是一个平行于c轴的32 a长的圆柱体。
Crystals of ion-free gramicidin A (P212121: a=24.61, b=32.28, c=32.52) have been investigated using neutron diffraction. A difference analysis of crystals soaked in ethanol/H2O as opposed to ethanol-d6/D2O has led to single isomorphous replacement Fourier projections of the structure at 5-A resolution. The gramicidin dimer appears to be a 32-A-long cylinder oriented parallel to the c-axis in these crystals.