Downing K H, Glaeser R M
Biophys J. 1980 Nov;32(2):851-6. doi: 10.1016/S0006-3495(80)85020-X.
Crystals of DNA have been grown in a form suitable for study by electron diffraction and electron microscopy. Preliminary electron diffraction patterns of any type that have been obtained from single crystals of highly polymerized DNA. The patterns, obtained from frozen, hydrated crystals with the beam approximately parallel to the DNA strand axis, show a hexagonal geometrical arrangement with a (1,0) Bragg spacing of 23.1 A.
已培养出适合通过电子衍射和电子显微镜进行研究的DNA晶体。从高度聚合的DNA单晶获得了任何类型的初步电子衍射图谱。这些图谱是从冷冻的水合晶体获得的，电子束大致平行于DNA链轴，显示出六边形几何排列，(1,0)布拉格间距为23.1埃。
