title: Bacteriophage structure: determination of head-tail symmetry mismatch for Caulobacter crescentus phage phiCbK.
abstract: Electron micrographs of negatively stained bacteriophage [unknown]CbK have been analyzed by Fourier methods. Computer-calculated Fourier transforms that contain phase as well as magnitude information have established fivefold rotational symmetry for the head and threefold rotational symmetry for the tail. These results indicate that a symmetry match is not necessarily required between separate structural components of a bacteriophage.
mesh_terms: D001435:Bacteriophages; D003201:Computers; D005583:Fourier Analysis; D008854:Microscopy, Electron; D011487:Protein Conformation; D013194:Staining and Labeling; D014764:Viral Proteins
chemical_list: D014764:Viral Proteins