title: Electron diffraction of wet proteins: catalase.
abstract: 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.
mesh_terms: D002374:Catalase; D003461:Crystallography; D008854:Microscopy, Electron / Q000295:instrumentation; D014867:Water
chemical_list: D014867:Water; D002374:Catalase