Electron Diffraction of Wet Proteins: Catalase

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Science  21 Jul 1972:
Vol. 177, Issue 4045, pp. 268-270
DOI: 10.1126/science.177.4045.268


Electron diffraction patterns having 3500 reflections out to 2 angstromns were obtained from wet microcrystals of catalase. No diffraction was obtained if the water vapor pressure was set below 90 percent of the equilibrium value.