Warkentin Matthew, Thorne Robert E
Physics Department, Cornell University, Ithaca, NY 14853, USA.
J Struct Funct Genomics. 2007 Dec;8(4):141-4. doi: 10.1007/s10969-007-9029-0. Epub 2007 Oct 19.
During flash cooling of protein crystals in liquid cryogens, cooling rates are determined by sample size, choice of cooling liquid, and by the thickness of the cold gas layer that forms above the liquid. We describe an experimental protocol for ultra-rapid cooling of protein crystals. This protocol requires no complex apparatus, and yields ice-ring-free diffraction without the use of penetrating cryoprotectants.
在蛋白质晶体于液态低温介质中进行快速冷却的过程中,冷却速率取决于样品大小、冷却液的选择以及在液体上方形成的冷气层厚度。我们描述了一种用于蛋白质晶体超快速冷却的实验方案。该方案无需复杂设备,且在不使用穿透性冷冻保护剂的情况下能获得无冰环衍射结果。