The Nobel Prize in Chemistry 2017
This technic is the main reason for wining Nobel price of chemistry 2017.C ryo-electron microscopy ( cryo-EM ), or electron cryomicroscopy , is a form of transmission electron microscopy (TEM) where the sample is studied at cryogenic temperatures (generally liquid-nitrogen temperatures).Cryo-EM is gaining popularity in structural biology . The utility of cryoelectron microscopy stems from the fact that it allows the observation of specimens that have not been stained or fixed in any way, showing them in their native environment. This is in contrast to X-ray crystallography , which requires crystallizing the specimen, which can be difficult, and placing them in non-physiological environments, which can occasionally lead to functionally irrelevant conformational changes. The resolution of cryo-EM maps is improving steadily, and in 2014 some structures at near-atomic resolution had been obtained, including tho...
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