title: An electron-microscope study of beta-glucuronidase crystals.
abstract: beta-Glucuronidase from rat preputial glands was crystallized as thin sheets having p6 symmetry in projection with a equal 20.2nm. A filtered image was produced by Fourier methods to a resolution of 2.2 nm by averaging information from six areas. This suggests an approximately triangular molecular outline in projection, and this is taken to indicate a probable tetrahedral arrangement of the four subunits of the beta-glucuronidase molecule.
mesh_terms: D003201:Computers; D003460:Crystallization; D005583:Fourier Analysis; D005966:Glucuronidase; D007089:Image Enhancement; D008854:Microscopy, Electron; D008961:Models, Structural
chemical_list: D005966:Glucuronidase